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
- I have varmits that are ruining my lawn during the winter (under snow). They make trails and destroy the lawn about 4 inches wide. I can find no holes only the trails and dead grass flipped to the side of the trails. Any ideas? We are going crazy trying to figure this out. We have never had this problem until last year.
- I have some problems with native Juniper trees dying(25 ft average height). They start turning yellow (chlorosis has been ruled out) then brown on south side first, then slowly spread to north end of plant. I have cut down one and found no signs of insect damage or disease. Only trees located next to a dirt road(South of trees) are currently affected. They started changing in color last summer. The county does spray for russian thistle on road. Yet no other trees seem to be affected. Can you provide other possible reasons or someone that may be able to come and see them (test them)?
- My neighbors have horses, and I need to create a wind break of sorts to control dust from their pasture. Please advise regarding trees shrubs I can plant close to fenceline for windbreak that the horses won't eat.
- We just planted a maple tree in our back yard and noticed today that almost every single leaf has large circular spots that appear to have been "eaten" out of the sides of the leaves. I've read about a tar disease, but I don't really see the tar on the leaves. What could it be and is there something we should do about it?
- Where can I buy a kumquat tree in Utah? Will it survive living outdoors in SLC?
- I would like to plant a bunch of trees (hundreds) on a piece of dry farm high on a bench in Petersboro. The soil is clayish and watering is limited to hauling only. Can you recommend a tree or two that would be easy to start and would be fairly maintenance free once established. Any thing that will survive.
- I have a Blierana flowering plum tree that failed to leaf out fully this spring. I looked at it yesterday and found at least fifty places on the branches where a snake-like resin/sap has been pushed out of the branch. Is this a borer doing damage? What do I do? Should I remove the tree to prevent further damage to surrounding trees? Is there something I can spray? Can I ever plant a tree in this same spot? I have trees all along my fence line in a row and really need a replacement tree if this one is going to die.
- My backyard has far too much grass. I'd like to turn a fairly large portion of the lawn into waterwise beds and also expand my backyard vegetable garden. Two years ago, I made some beds by removing the turf. However, it is not only very hard work but it also results in a large amount of excess sod, and takes a good amount of topsoil with it. It also seems wasteful to send it to a landfill. Is there a way to kill the grass without herbicides? For example, will covering it with black plastic be an effective way to kill the grass? If so, how long will it be before I can plant in the new beds?