Fallen trees can cause property damage, injuries and death. Safely removing them once they have fallen in an urban environment has to be done so as to not cause more damage. This means highly experienced arborists need to engineer the removable. Flintridge Tree Care is one of the only tree companies capable of removing a fallen urban tree, thanks to our capable teams and custom built trucks and machinery.
Trees and Heavy Rainfall
We have recently been inundated with multiple events of heavy rainfall – a whole lot of water in a short amount of time. While rain is a welcome relief for landscapes in the hot, dry summers of California, there can be a little too much of a good thing, which can cause some issues for young and mature trees alike, such as:
General Tree Stress
Trees respire through their roots, which mean that they take in oxygen and release carbon dioxide through air spaces in the soil. When soil becomes saturated and those pores are filled with water, this function is disabled which can cause stress for the tree. There are a few things we can do about trees affected by standing water after a big rain, but it’s important to try to prevent your tree from becoming more stressed after conditions improve to avoid continued problems.
Consider adding a 3-4” thick layer of mulch out to the drip line of the tree.
Give the tree a long, deep soaking later in the season when it gets hot and it hasn’t rained in a while.
Install water/aeration tubes inside the drip line. These provide deep watering and aeration to the roots to prevent root wrought.
Turn off your lawn irrigation system during weeks when it has rained to let the soil dry out a little. If the soil is wet, the grass doesn’t need to be watered. This can reduce your water bill too!
Do not apply fertilizer when your tree is stressed unless a soil test shows a mineral deficiency, then only amend for that specific problem. Unneeded fertilization stimulates growth that a tree must then use energy to support, further stressing an already weak tree.
Finally, flood stress can be avoided entirely by not placing trees in locations that tend to hold water, or by using flood tolerant species.
Most trees can tolerate short durations of saturated soil conditions when they have a chance to dry out and recover.
Defoliation
A more specific symptom of saturated soil conditions shows up in the leaves. Foliage may start to turn yellow and then fall off, particular in the lower, inner part of the canopy. If soil is allowed to dry out, trees will usually put out a new flush of foliage growth, but prolonged defoliation contributes to tree stress.
Other Foliage Problems
Cool, humid conditions are perfect for fungal diseases to flourish in. We tend to see a lot of leaf spot and powdery mildew in years with a lot of rain. These problems are usually just cosmetic and will not affect the tree long term, but they can cause minor stress. If a tree defoliates, it’s likely to produce new foliage. Just work at keeping the tree healthy otherwise (see the suggestions above), and remove any fallen leaves to dispose of so they do not re-infect healthy foliage. Make sure your irrigation does not splash leaves, which can spread spores and prolong infection. If it’s raining this much, the landscape probably does not need to be watered anyway, right? Repeated defoliation over multiple seasons can cause greater stress and result in reduced growth and additional pest and disease problems. Fungicides may be necessary in these instances, applied early in the season, before symptoms occur.
Root Problems
We have had some issues this spring with trees planted in the last few years having their roots loosened so that the tree has an unnatural amount of sway. This compromises the anchorage of a young tree and can lead to further stress. We recommend placing stakes to support the tree while its roots re-establish in the surrounding soil, to be removed no more than one year later. Larger trees can also experience root issues sometimes after heavy storms/rain events. Signs of root failure include mounding of soil on the side opposite a lean that is becoming more pronounced. If you notice that one of your trees is experiencing this problem, it’s a good idea to contact your Flintridge Tree Care Certified Arborist for a tree risk assessment. Saturated soil conditions are also conducive for root rot organisms. Fungal fruiting bodies at the base of the trunk or near roots could be indicative of root decay. Tree roots scoured out by eroding soil can make a tree more susceptible to root failure.
It’s a good idea to go outside and take a look at trees in your yard after big weather events, just to ensure there are no issues that need attention contact your Flintridge Tree Care Certified Arborist to take the steps to maintain healthy trees throughout the year and this way you can potentially reduce the adverse effects experienced from saturated soil conditions.
The City of La Cañada Flintridge is a “Tree City USA”. The Tree City USA® program, sponsored by the Arbor Day Foundation in cooperation with the USDA Forest Service and the National Association of State Foresters.
VEGETATION MANAGEMENT IS A YEAR-ROUND RESPONSIBILITY
TREE TRIMMING AND BRUSH CLEARANCE REQUIREMENTS
NEW BRUSH CLEARANCE AND TREE TRIMMING REQUIREMENTS FOR LOS ANGELES COUNTY
The state of California has seen an increase in frequency and size of wildfires, including historic brushfires in the city of Los Angeles such as the La Tuna, Creek, and Skirball fires. Additionally, smaller brushfires have been accidentally started by well-intentioned residents performing brush clearance. Therefore, Los Angeles City Council has approved an ordinance to increase requirements for brush clearance and fire safety in the Very High Fire Hazard Severity Zones (VHFHSZ). This ordinance establishes appropriate safety measures necessary to mitigate the occurrence of such fires.
Highlights of the new ordinance include:
Use of metal cutting blades for grass or brush clearance shall be limited to those which are non-ferrous/non-sparking.
Brush clearance cannot be done on red flag days, when fire weather conditions are at their peak.
Individuals engaged in brush clearance operations shall not engage in any other activities during their actual clearance of grass or brush.
An approved fire extinguisher, or a pressurized garden hose with attached nozzle shall be within 10 feet of any grass or brush clearance operation, to quickly extinguish a small fire before it burns out of control.
A cell phone capable of dialing 9-1-1 shall be charged and readily accessible to the grass or brush clearance operation.
Read the full Ordinance here. It is effective now.
Revised – February 9, 2017
CLEARANCE REQUIREMENTS
Owners of property located in the Very High Fire Hazard Severity Zone (VHFHSZ) shall maintain their property in accordance with the Fire Code (L.A.M.C. 57.322). Year-round compliance shall be maintained as described below on all native brush, weeds, grass, trees and hazardous vegetation within 200 feet of any structures/buildings, whether those structures are on the owner’s property or adjoining properties, and within 10 feet of any combustible fence or roadway/driveway used for vehicular travel.
1. Areas within 200 feet of structures and/or 10 feet of roadside surfaces or combustible fence: Grass shall be cut to three inches in height. Native brush shall be reduced in quantity to three inches in height. This does not apply to individual native shrubs spaced a minimum of 18 feet apart, provided such shrubs are trimmed up from the ground to 1/3 of their height with all dead material being removed (see diagram above).
2. For trees taller than 18 feet, trim lower branches so no foliage is within six feet of the ground, and remove all dead material. For trees and shrubs less than 18 feet, remove lower branches to 1/3 of their height, and remove all dead material (see diagram above).
3. Trees shall be trimmed up so the foliage is no closer than 10 feet from the outlet of a chimney (see diagram above).
4. All roof surfaces shall be maintained free of substantial accumulation of leaves, needles, twigs and any other combustible matter. Maintain five feet of vertical clearance between roof surfaces and portions of overhanging trees (see diagram above).
5. All cut vegetation and debris shall be removed in a legal manner. Cut vegetation may be machine processed (i.e.,chipped) and spread back onto the property at a depth not to exceed three inches within 30 feet of structures and six inches beyond 30 feet of structures. In addition, spread material shall not be placed within 10 feet of any usable roadside (in accordance with Fire Prevention Bureau Procedure No. 25)
The above general requirements also apply to landscape vegetation.
To Review ALL Enforceable Brush Clearance requirements, visit VMS3.lafd.org “Clearance Requirement.”
VEGETATION MANAGEMENT IS A YEAR-ROUND RESPONSIBILITY
Please call us if you have Trimming and Clearing.818) 952-5300
The Code for Los Angele County
EC. 57.322.1. GENERAL BRUSH CLEARANCE.
No person who has any ownership or possessory interest in, or control of, a parcel of land shall allow to exist thereon any hazardous refuse or hazardous weeds, trees, or other vegetation which, by reason of proximity to a building or structure, constitutes a fire hazard. For purposes of this section hazardous weeds, trees, or other vegetation are defined as weeds, trees, or other vegetation which are in such condition and location as to provide a ready fuel supply to augment the spread or intensity of a fire. Nothing contained in this subsection shall be deemed to preclude the Chief from requiring more than the minimum specific requirements set forth above when the Chief determines that conditions exist which necessitate greater fire protection measures.
SEC. 57.322.1.1. SPECIFIC REQUIREMENTS.
Each person who has any ownership or possessory interest in, or control of, a parcel of land shall comply with the requirements set forth in Sections 57.322.1.1.1 through 57.322.1.1.10.
SEC. 57.322.1.1.1. VEGETATION WITHIN 100 FEET OF BUILDINGS.
Remove from the property all dead trees, and maintain all weeds and other vegetation at a height of no more than three inches, except as otherwise provided therein, if such weeds or other vegetation are within 100 feet of a building or structure located on such property or on adjacent property. This requirement does not apply to the maintenance of trees, ornamental shrubbery or plants which are used as ground cover provided such do not provide a ready fuel supply to augment the spread or intensity of a fire; nor does it apply to a native shrub, provided such shrub is trimmed up from the ground to 1/3 of its height; does not exceed 216 cubic feet in volume; is spaced at a distance of not less than three times its maximum diameter, but not less than 18 feet from the edge of any other native shrub, building or structure; and all dead wood and other combustible material within 18 feet of such shrub is removed except as provided above.
SEC. 57.322.1.1.2. TREES WITHIN 100 FEET OF BUILDINGS.
Maintain trees which are 18 feet or more in height and are within 100 feet of any building or structure or within 10 feet of that portion of any highway, street, alley or driveway which is improved or used for vehicle travel or other vehicular purposes, so that no leafy foliage, twigs, or branches are within 6 feet of the ground. Trees and shrubs less than 18 feet shall be trimmed up 1/3 their height.
SEC. 57.322.1.1.3. CHIMNEY CLEARANCE.
Remove any portion of a tree which extends within 10 feet of the outlet of a chimney or stovepipe.
SEC. 57.322.1.1.4. OVERHANGING BRANCHES.
Keep all trees, shrubs, and other growing vegetation or portions thereof adjacent to or overhanging any building or structure free of dead limbs, branches and other combustible matter. Maintain 5 feet of vertical clearance between roof surfaces and portions of trees overhanging any building or structure.
SEC. 57.322.1.1.5. ROOF MAINTENANCE.
Maintain the roofs of all buildings or structures free of leaves, needles, twigs and other combustible matter.
SEC. 57.322.1.1.6. ROAD AND FENCE CLEARANCE.
Maintain all weeds and other vegetation located within 10 feet of any combustible fence or an edge of that portion of any highway, street, alley or driveway improved or used for vehicular travel or for other vehicular purposes at a height of not more than 3 inches. This shall not require the removal of trees, ornamental shrubbery or plants which are used as ground cover, provided such do not provide a ready fuel supply to augment the spread or intensity of a fire, nor require the removal of native shrubs which meet the requirements set forth in Section 57.322.1.1.1.
SEC. 57.322.1.1.7. SECOND 100-FOOT MODIFICATION.
Clear all hazardous vegetation and other combustible growth within the first 100 feet surrounding structures as required by this section. Reduce the amount and/or modify the arrangement of hazardous vegetation within the area comprising the second 100 feet for a total distance of 200 feet from any structure unless otherwise specified by the Chief. The work required shall be set forth in the Notice of Noncompliance.
SEC. 57.322.1.1.8. LANDSCAPE VEGETATION.
Maintain all landscape vegetation, including, but not limited to, conifers (e.g., cedar, cypress, fir, juniper, and pine), eucalyptus, acacia, palm and pampas grass in such a condition as not to provide an available fuel supply to augment the spread or intensity of a fire. The Notice of Noncompliance citing violations of this subsection will specify that such landscape vegetation poses a threat to buildings or structures in the vicinity and may cause them to be indefensible, and shall describe the work required to be done.
SEC. 57.322.1.1.9. GREATER FIRE PROTECTION MEASURES.
Nothing contained in this subsection shall be deemed to preclude the Chief from requiring more than the minimum specific requirements set forth above when the Chief determines that conditions exist which necessitate greater fire protection measures.
SEC. 57.322.1.1.10. ADDITIONAL BRUSH CLEARANCE REQUIREMENTS.
All individuals performing grass or brush clearance activities in the VHFHSZ shall adhere to the following specific requirements:
1. Grass or brush clearance operations shall not be conducted on red flag days.
2. Individuals engaged in grass or brush clearance operations shall not engage in any other activities during their actual clearance of grass or brush.
3. Individuals engaged in grass or brush clearance operations shall use an appropriate extinguishing agent immediately to extinguish a fire.
4. All fires, regardless of size, shall be reported immediately via the 9-1-1 system to the Fire Department.
5. A Class 2-A two (2) gallon water fire extinguisher, pressurized garden hose with attached nozzle (fully open), or comparable pressurized Class 2-A extinguishing device, shall be within 10 feet of any grass or brush clearance operation.
6. Where a gasoline container is present at the site of the grass or brush clearance operation, a minimum 4A 60 B:C dry chemical fire extinguisher shall be within 10 feet of the brush clearance operation.
7. A cell phone capable of dialing 9-1-1 shall be charged and readily accessible to the grass or brush clearance operation.
8. A safety strap shall be used at all times for any tool or appliance with hot exhaust. Hot exhaust shall not come in contact with any brush, grass, flash fuels, or other flammable material.
SEC. 57.322.1.1.10.1. PENALTY.
A first violation of this section shall be an infraction punishable by a fine not to exceed $250. A second and all subsequent violations of this section shall be subject to the provisions of Section 11.00 of the Los Angeles Municipal Code, including prosecution as an infraction or prosecution as a misdemeanor punishable by a fine not to exceed $1,000, by imprisonment in the County jail for a period not to exceed six months, or by both such fine and imprisonment. In addition to the aforementioned penalties, any violator convicted under this section, which resulted in a fire, may be liable for any civil cost recovery associated with the fire, as permitted by law.
SEC. 57.322.2. INSPECTION AND FEES.
A fee shall be charged for the inspection of properties in the City of Los Angeles to determine whether a violation of this section exists. The fee shall be determined and established in the same manner as provided for in Section 57.106.7. Provided, however, that prior to any inspection occurring, the owner of record of each property proposed to be inspected shall receive a notice advising the owner of the intended inspection, the cost thereof, that penalties will be imposed for nonpayment within the time period specified, and that the owner will not be billed if the owner elects to follow the procedure, or any of the procedures, described in the notice within the period of time specified in the notice. Any procedure which the property owner may elect to follow must be determined by the Fire Department to be one which will provide adequate assurance to the Department that the property does not contain hazardous vegetation as defined in Section 57.322, a copy of which definition shall also be set forth in the notice, and which would not be unduly burdensome upon the property owner to accomplish. In the event an inspection occurs and the property owner is billed the cost of inspection, a penalty shall be imposed if the fee is not paid within the period of time specified in the billing document. Such penalty shall be 200% of the fee imposed, or the cost of rebilling, whichever is greater.
Tree Tubes promote the health, safety and longevity of your trees!
Watering tubes and aeration tubes provide several advantages for trees, especially in the context of promoting healthy growth and enhancing stability to prevent failures. Here are some advantages of using these tubes:
Contact us to install Tree Tubes for the health, safety and longevity of your trees!
Direct Watering: Watering tubes ensure that water reaches the roots directly. This can be particularly beneficial for young or newly planted trees where establishing a robust root system is crucial.
Conservation of Water: By directing water straight to the root zone, there’s less water wastage due to runoff or evaporation.
Reduced Weed Growth: By watering directly to the tree’s roots, you can reduce the moisture available to weed seeds and thereby decrease weed growth around the tree.
Protection from Pests: Keeping the surface soil drier can deter certain pests that thrive in moist conditions.
Consistent Moisture: Watering tubes can help maintain consistent soil moisture levels, reducing the chances of both drought stress and overwatering.
Aeration Tubes:
Improved Soil Structure: Aeration tubes help in improving the soil structure by preventing soil compaction. Compacted soil can restrict root growth and reduce the tree’s overall health.
Enhanced Oxygen Levels: Trees, like all plants, require oxygen for their roots. Aeration tubes ensure that the soil remains aerated, allowing roots to respire properly.
Reduction in Root Diseases: Aerated soil tends to have fewer problems with root rot and other diseases that thrive in waterlogged conditions.
Promotion of Beneficial Microorganisms: Well-aerated soils are more conducive to beneficial soil microbes that aid in nutrient cycling and overall tree health.
Stability: By promoting deeper and more extensive root growth, aeration tubes can enhance the tree’s stability. Stronger and deeper roots anchor the tree more firmly in the ground, reducing the risk of uprooting during storms or due to other external pressures.
In summary, watering and aeration tubes provide targeted benefits that cater to the specific needs of trees, ensuring healthier growth and improved stability. Proper installation and maintenance of these tubes can significantly contribute to the long-term health and stability of trees in various environments.
Trimming or pruning trees is essential for several reasons, and it contributes to the overall health, safety, and aesthetics of the trees and the surrounding environment. Here are some reasons why you might need to trim your trees:
Health of the Tree:
Remove Dead or Diseased Branches: Trimming helps eliminate dead or diseased branches, preventing the spread of diseases and promoting overall tree health.
Encourage Growth: Pruning can stimulate new growth and improve the structure of the tree, leading to a healthier and more robust specimen.
Safety:
Remove Hazardous Branches: Overhanging or damaged branches can pose a safety risk, especially during storms. Trimming helps eliminate potential hazards and reduces the risk of branches falling on people, structures, or power lines.
Clear Visibility: Trimming can improve visibility for pedestrians, drivers, and cyclists, making the surroundings safer.
Aesthetics:
Enhance Appearance: Regular pruning can improve the overall appearance of a tree by maintaining its shape and form. This is particularly important for trees in landscaped areas or near buildings.
Structural Integrity:
Reduce Weight: Trimming removes excess weight from branches, preventing them from breaking under the stress of heavy winds, snow, or ice.
Promote Airflow:
Prevent Disease: Proper spacing of branches and foliage allows better airflow, reducing the risk of fungal diseases and promoting a healthier environment for the tree.
Fruit Production:
Improve Fruit Yield: Pruning fruit trees can enhance fruit production by allowing sunlight and air circulation, leading to better fruit quality.
Prevent Pest Infestations:
Remove Nests and Infestations: Regular trimming can help identify and remove potential habitats for pests, reducing the risk of infestations.
Compliance with Regulations:
Local Ordinances: In some areas, there may be local regulations that require property owners to maintain their trees for safety and aesthetic reasons.
Remember that the timing and extent of tree trimming depend on the species of the tree, its age, and the specific goals you have for it. It’s advisable to consult with a Flintridge Tree Care Certified Arborist or tree care professional for guidance on the appropriate pruning practices for your specific situation.
Watering tubes and aeration tubes provide several advantages for trees, especially in the context of promoting healthy growth and enhancing stability to prevent failures. Here are some advantages of using these tubes:
Contact us to install Tree Tubes for the health, safety and longevity of your trees!
Direct Watering: Watering tubes ensure that water reaches the roots directly. This can be particularly beneficial for young or newly planted trees where establishing a robust root system is crucial.
Conservation of Water: By directing water straight to the root zone, there’s less water wastage due to runoff or evaporation.
Reduced Weed Growth: By watering directly to the tree’s roots, you can reduce the moisture available to weed seeds and thereby decrease weed growth around the tree.
Protection from Pests: Keeping the surface soil drier can deter certain pests that thrive in moist conditions.
Consistent Moisture: Watering tubes can help maintain consistent soil moisture levels, reducing the chances of both drought stress and overwatering.
Aeration Tubes:
Improved Soil Structure: Aeration tubes help in improving the soil structure by preventing soil compaction. Compacted soil can restrict root growth and reduce the tree’s overall health.
Enhanced Oxygen Levels: Trees, like all plants, require oxygen for their roots. Aeration tubes ensure that the soil remains aerated, allowing roots to respire properly.
Reduction in Root Diseases: Aerated soil tends to have fewer problems with root rot and other diseases that thrive in waterlogged conditions.
Promotion of Beneficial Microorganisms: Well-aerated soils are more conducive to beneficial soil microbes that aid in nutrient cycling and overall tree health.
Stability: By promoting deeper and more extensive root growth, aeration tubes can enhance the tree’s stability. Stronger and deeper roots anchor the tree more firmly in the ground, reducing the risk of uprooting during storms or due to other external pressures.
In summary, watering and aeration tubes provide targeted benefits that cater to the specific needs of trees, ensuring healthier growth and improved stability. Proper installation and maintenance of these tubes can significantly contribute to the long-term health and stability of trees in various environments.
Preventing trees from falling during heavy rains involves a combination of proactive measures, regular maintenance, and understanding tree health. Here are some steps and considerations to help prevent trees from falling:
Pruning: Regularly prune dead or weak branches. This reduces the tree’s weight and potential wind resistance.
Tree Health: Ensure trees are healthy. Sick or weakened trees are more susceptible to uprooting during storms.
Root Health: Inspect the base of trees for signs of root rot or other issues that might compromise the tree’s stability.
Planting the Right Tree in the Right Place:
Different trees have different root systems and growth habits. Some species are more prone to uprooting than others. Research the specific needs and potential issues of the tree species you’re considering.
Tree Support Systems:
Cabling and Bracing: For trees with structural weaknesses, consider installing cables or braces to support weak or heavy branches.
Guying: Newly planted or young trees can be anchored with guy wires to provide additional support until they are established.
Water Management:
Overwatering can lead to weakened root systems, making trees more susceptible to uprooting. Ensure proper drainage and avoid excessive watering.
Regularly Check Soil Conditions:
Compacted or saturated soils can increase the risk of trees toppling. Avoid soil compaction around tree roots and improve drainage if necessary.
Professional Assessment:
If you’re unsure about the health or stability of a tree, consult with a certified arborist. They can provide expert advice on tree care, maintenance, and potential risks.
Emergency Preparedness:
Have a plan in place for managing trees during severe weather events. This might include knowing who to call for emergency tree removal or having the necessary tools on hand.
Regularly Inspect Adjacent Structures:
Ensure that trees are not growing too close to buildings, utility lines, or other structures. Trees can cause damage if they fall, so maintaining a safe distance is crucial.
Educate Yourself:
Stay informed about local weather patterns and potential risks. Knowing when severe weather is forecasted can allow you to take proactive measures to protect trees and property.
Remember, while these steps can reduce the risk of trees falling during heavy rains, there’s no guaranteed way to prevent all incidents. It’s essential to be vigilant, regularly inspect trees, and take action when necessary to ensure safety.
There are a combination of natural factors and external stresses that contribute to the loss of our mature trees. Here are some reasons why trees might fall during or after periods of rain:
Soil Saturation: One of the primary reasons is that excessive rain can saturate the soil. When the soil is saturated, it loses much of its ability to hold onto the tree’s roots, leading to reduced stability. Trees that have shallow root systems or those growing in poorly drained soils are especially vulnerable.
Compromised Root Systems: Trees with compromised or weakened root systems are more susceptible to falling. Factors such as root decay, disease, insect damage, or mechanical damage can weaken a tree’s roots. When combined with the added weight of rainwater, the chances of the tree falling increase.
Wind: Rain often accompanies windstorms. The combination of heavy rain and strong winds can exert significant force on tree canopies, especially if the tree is old, diseased, or structurally compromised. This force can lead to uprooting or the breaking of large branches.
Tree Structure: Some tree species or individual trees have inherently weak structures. This can include a poor branch attachment or a naturally leaning trunk. When rain adds additional weight or stress, these trees are more likely to fail.
Erosion: Persistent or heavy rain can cause soil erosion around a tree’s base. As soil erodes, the root system can become exposed or destabilized, increasing the likelihood of the tree falling over.
Past Disturbances: Trees that have undergone past disturbances, such as construction activities near their root zones or previous injuries, might have compromised root systems. These trees are more susceptible to falling during periods of rain.
Tree Health: Trees that are already in poor health due to diseases, pests, or other stress factors are more likely to fall during or after rain. A compromised tree is less resilient and can fail more easily under the added weight and stresses of rain.
It’s essential to monitor trees, especially older or larger ones, for signs of stress or instability, especially before and after periods of heavy rain. Regular tree inspections by qualified arborists can help identify potential risks and mitigate them before they become hazardous.
Fallen trees can cause property damage, injuries and death. Safely removing them once they have fallen in an urban environment has to be done so as to not cause more damage. This means highly experienced arborists need to engineer the removable. Flintridge Tree Care is one of the only tree companies capable of removing a fallen urban tree, thanks to our capable teams and custom built trucks and machinery.
Trees and Heavy Rainfall
We have recently been inundated with multiple events of heavy rainfall – a whole lot of water in a short amount of time. While rain is a welcome relief for landscapes in the hot, dry summers of California, there can be a little too much of a good thing, which can cause some issues for young and mature trees alike, such as:
General Tree Stress
Trees respire through their roots, which mean that they take in oxygen and release carbon dioxide through air spaces in the soil. When soil becomes saturated and those pores are filled with water, this function is disabled which can cause stress for the tree. There are a few things we can do about trees affected by standing water after a big rain, but it’s important to try to prevent your tree from becoming more stressed after conditions improve to avoid continued problems.
Consider adding a 3-4” thick layer of mulch out to the drip line of the tree.
Give the tree a long, deep soaking later in the season when it gets hot and it hasn’t rained in a while.
Install water/aeration tubes inside the drip line. These provide deep watering and aeration to the roots to prevent root wrought.
Turn off your lawn irrigation system during weeks when it has rained to let the soil dry out a little. If the soil is wet, the grass doesn’t need to be watered. This can reduce your water bill too!
Do not apply fertilizer when your tree is stressed unless a soil test shows a mineral deficiency, then only amend for that specific problem. Unneeded fertilization stimulates growth that a tree must then use energy to support, further stressing an already weak tree.
Finally, flood stress can be avoided entirely by not placing trees in locations that tend to hold water, or by using flood tolerant species.
Most trees can tolerate short durations of saturated soil conditions when they have a chance to dry out and recover.
Defoliation
A more specific symptom of saturated soil conditions shows up in the leaves. Foliage may start to turn yellow and then fall off, particular in the lower, inner part of the canopy. If soil is allowed to dry out, trees will usually put out a new flush of foliage growth, but prolonged defoliation contributes to tree stress.
Other Foliage Problems
Cool, humid conditions are perfect for fungal diseases to flourish in. We tend to see a lot of leaf spot and powdery mildew in years with a lot of rain. These problems are usually just cosmetic and will not affect the tree long term, but they can cause minor stress. If a tree defoliates, it’s likely to produce new foliage. Just work at keeping the tree healthy otherwise (see the suggestions above), and remove any fallen leaves to dispose of so they do not re-infect healthy foliage. Make sure your irrigation does not splash leaves, which can spread spores and prolong infection. If it’s raining this much, the landscape probably does not need to be watered anyway, right? Repeated defoliation over multiple seasons can cause greater stress and result in reduced growth and additional pest and disease problems. Fungicides may be necessary in these instances, applied early in the season, before symptoms occur.
Root Problems
We have had some issues this spring with trees planted in the last few years having their roots loosened so that the tree has an unnatural amount of sway. This compromises the anchorage of a young tree and can lead to further stress. We recommend placing stakes to support the tree while its roots re-establish in the surrounding soil, to be removed no more than one year later. Larger trees can also experience root issues sometimes after heavy storms/rain events. Signs of root failure include mounding of soil on the side opposite a lean that is becoming more pronounced. If you notice that one of your trees is experiencing this problem, it’s a good idea to contact your Flintridge Tree Care Certified Arborist for a tree risk assessment. Saturated soil conditions are also conducive for root rot organisms. Fungal fruiting bodies at the base of the trunk or near roots could be indicative of root decay. Tree roots scoured out by eroding soil can make a tree more susceptible to root failure.
It’s a good idea to go outside and take a look at trees in your yard after big weather events, just to ensure there are no issues that need attention contact your Flintridge Tree Care Certified Arborist to take the steps to maintain healthy trees throughout the year and this way you can potentially reduce the adverse effects experienced from saturated soil conditions.
Flintridge Tree Care is one of the best oak tree maintenance services in Southern California. When researching and contacting various tree care professionals in the region. Here are some general tips to help you identify reputable services: Flintridge Tree Care fits all of them.
Certification and Licensing:
Ensure that the tree maintenance company is licensed and certified by relevant authorities. In California, the International Society of Arboriculture (ISA) certification is highly regarded.
Experience and Expertise:
Look for companies with a proven track record in oak tree maintenance. Experienced arborists are more likely to provide effective and safe services.
Insurance:
Verify that the company has insurance coverage. This protects you and the workers in case of accidents or property damage during tree maintenance.
References and Reviews:
Ask for references from past clients or check online reviews. Positive feedback from satisfied customers is a good indicator of a reliable service.
Knowledge of Local Regulations:
Oak trees in California are protected by various regulations, so it’s important that the tree care professionals are familiar with and adhere to these rules. Check if they obtain the necessary permits for any work on oak trees.
Services Offered:
Ensure the company offers a range of services, including pruning, trimming, pest control, and disease management specific to oak trees.
Safety Practices:
Inquire about their safety practices. Arborists should follow industry standards and use proper safety equipment to avoid accidents.
Transparent Pricing:
Request a detailed estimate for the proposed services. Transparent pricing with a breakdown of costs can help you understand what you’re paying for.
Environmental Awareness:
Choose a company that demonstrates a commitment to environmentally friendly practices and follows guidelines for preserving oak trees.
Local Knowledge:
Companies familiar with the local climate, soil conditions, and common tree issues in Southern California are better equipped to address specific challenges related to oak tree care.
Communication:
Effective communication is key. Ensure the company is responsive to your inquiries, provides clear information, and discusses the proposed plan of action with you.
Flintridge Tree Care fits the bill for all 11 areas!
Learn how to care for the Native Trees in your yard
Flintridge Tree Care has been caring for trees in La Canada Flintridge for 50 years. There is a lot to know about our trees and their advantages. Contact us at 818-952-5300 and one of our arborists can advise you on the proper care for issues with your trees. Tree Trimming can be one of the most important things you can do to properly care for your native trees. You can contact us through our online form Flintridge Tree Care https://flintridgetreecare.com/?s=forms
One of the best place to visit to learn about Native Trees is Descanso Gardens. You can take tours and learn in person or watch the following videos.
Planting Native Trees is is always a wise thing to do. Native trees when properly planted and cared for increases their beauty and longevity.
