Tree leaves turning yellow, even during the height of the long East Texas growing season, can cause concern for property owners.
Meadows Tree Service, the leader in expert tree services in Memorial Villages, TX, provides the following information about why our native tree species sometimes struggle with premature leaf discoloration.
Iron Chlorosis
Chlorosis discoloring often happens when a tree lacks sufficient iron, which impairs its ability to produce the chlorophyll that gives leaves their green color.
Without chlorophyll, leaves turn yellow while their veins may remain green. Poor soil pH levels often hinder a tree’s ability to absorb iron, even if there’s plenty of it in the soil.
Professional solutions to this problem include:
- Soil tests to check pH levels
- Adding soil amendments like sulfur or iron sulfate to improve iron uptake
- Spraying iron compounds directly on leaves as a temporary measure
Nutrient Deficiencies
In addition to problems with insufficient iron, other nutrient deficiencies can result in tree leaves turning yellow. Too little nitrogen, magnesium, or potassium can all lead to chlorosis.
Low nitrogen levels usually cause yellowing across all parts of the leaves. Magnesium deficiency often causes yellowing between the veins or along leaf edges.
Professional solutions to this problem include:
- Using balanced fertilizers targeted at specific deficiencies
- Follow-up soil testing to assess progress
Watering Issues
Improper watering can stress your trees and detract from their natural health and beauty.
Overwatering can suffocate roots by filling soil pores with water — preventing oxygen from reaching the roots.
Conversely, underwatering results in drought stress, making it hard for the tree to absorb nutrients.
Professional solutions to this problem include:
- Checking soil moisture with a screwdriver or moisture meter
- Watering deeply and infrequently to maintain balanced moisture
Pest Infestation
Several common pests found in our area cause yellowing by feeding on tree sap and interrupting efficient nutrient uptake. The leading culprits are usually aphids, spider mites, and whiteflies.
In addition to premature yellowing, look out for leaf stippling, leaf curling, or the presence of small insects on the undersides of leaves.
Professional solutions to this problem include:
- Using environmentally safe insecticidal soaps or neem oil for small infestations
- Regular tree inspections and more advanced treatments when needed
Soil pH Levels and Amendments
High soil pH levels impede nutrient absorption, even if nutrients are available.
Professional solutions to this problem include:
- Performing standard soil tests for overly acidic or alkaline conditions
- Soil amendments like adding organic matter to the soil to boost its structure and nutrient profile
- Adding other supplements like sulfur or chelated iron to fight yellowing by improving nutrient uptake
Contact Meadows Tree Service for Comprehensive Arborist Services in Memorial Villages
Property owners discuss concerns about their tree leaves turning yellow during our area’s lengthy growing season. Meadows Tree Service diagnoses and treats tree health issues for all types of property owners, who rely on our reputation for expert care built on more than a decade of experience.
Contact us online or call (832) 692-4931 for professional guidance and to schedule the best tree care available in Memorial Villages and across the metropolitan area. Reach out today.
