Ask a Question
Notify Me On Question Update
Email this Question
Hi, I have a lot of two year hybrid poplars that we've planted for a wind break and the leaves near the trunks are beginning to turn yellow. I've read that this can be because of lack of water or too much water or not enough fertilizer. It's July and we water them every day because of the 90+ temps. Any suggestions?
Rate This FAQ
It sounds like too much water. I prefer deeper and less frequent watering, normally established trees need a good soak every week to 10 days. Also, frequent watering does not force the tree to grow deep roots that go after water and will sustain a tree through hot days.
Frequent watering also washes away the nitrogen so a tree will rob nitrogen from older leaves to keep growing. This best explains your described your situation. If it were not enough water you would see browning of outer leaves especially those on the south and west side that get the brunt of wind, sun, and warm temperatures. Slowly cut back on your watering intervals but increase the amount. let the hose run longer but put more days between watering. We don't normally encourage fertilization of trees, especially not in the heat of the summer where it encourages lush green growth. Spring and late fall would be better.
Submit Your Suggestion
Other Questions In This Topic
- When moving into our new home I removed two small quaking aspen trees. Even though the main trees are gone there are a good multiple dozen shoots that are coming up all over the lawn. How do I get rid of these for good...hopefully without ripping up my entire yard? Also my neighbors all have these aspen trees and I would like to "treat" the baby shoots coming up on my side of the fence line without damaging their trees. Is that possible?
- How can I control earwigs in my home and garden?
- I mowed my lawn today (04/18/08) and noticed some dead "tracks" that I do not remember seeing when I mowed on Saturday (04/14/08). I thought that it might have been something from my lawn mower but it is a brand new Honda that I purchased 1 month ago. I have posted some pictures on my website and can be viewed at supersoygifts.com/grass.htm. Thanks for any info you can provide.
- Can I grow bitter melon, gourds, thai chili peppers, hmong cucumbers, peas, green peas, sugar snap peas, and lemon grass in Clinton? When should I plant them?
- In the past you've offered a lawn-problem analysis --- as I recall a sample was brought in to your office and a quick analysis was done --- is the program still active? What is the schedule?
- My newly sprouted green bean plants are getting small to medium holes in the leaves. Could this be from pests or the heavy rain in East Millcreek?
- What are the differences and advantages or disadvantages of soil amendments? Specifically Perlite (expanded silicous rock), Vermiculite (expanded mica), Utelite (expanded shale).
- Do you have any suggestions as to where to buy or how to make a truly sturdy tomato cage? The "standard" metal ones I have bought at garden centers have always tipped over when the plant has gotten big.