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Help! Cottonwood tress dropping leaves alarming rate!
I was referred here by someone in alt.home.lawn-garden
and hope someone can help! I live in north central Texas ...north of Dallas and south of Sherman if that helps. I have three huge cottonwood trees that are in front of my house. And another tree I'm trying to identify---they ALL seem to be losing leaves. Isn't it awfully early for fall? Do cottonwoods lose leaves in late July? I'm very worried...The last two days I've dragged the hose over to them and just let it run at a low drip so the trees hopefully get 'filled' up as far as water goes. Of course, I'm watching not to drown them or anything, but have been wondering if there's maybe too little water getting to them. I've checked for any evidence of insect infestation and see none. The trees are dropping leaves rapidly, as if it's fall. The trees on the branches look fine, the trees themselves still look filled with leaves, but the ground is covered with leaves already, as if it were fall. This is my first summer here, so I don't know if this is normal or not. I moved here last November and there were tons of leaves then.... Any advice or ideas would be greatly appreciated. mary |
#2
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Help! Cottonwood tress dropping leaves alarming rate!
Since no one else has replied publicly and I'm sure there are more
wondering the same thing, I'll answer here. This kind of leaf loss is a response to drought conditons. The tree probably doesn't have enough water to hold on to all those leaves and drops them as a water conservation action. At night, leaves open their "stomata", allowing water vapor to escape into the air along with other by-products of photosynthesis. The leaves covering the ground also act as an inhibitor to ground dessication. Cottonwoods are water-loving trees and are especially sensitive to drought. As long as there are lots of leaves still left, the trees will do just fine when normal rainfall returns. Watering them is a good defense and will also help the trees fight off any diseases or pests trying to take advantage of its weakened condition. A similar thing is going on in other trees around the country. The incense cedar around my house are very early in losing some of their inner foliage. Pines are showing drought strees by hanging on to only 1 or 2 years worth of needles. If you're really worried about an individual tree, you can manually removed some of its crown to reduce water needs and also remove competing vegetation. Trim back the lower and inner branches but don't overdo it. Any tree surgeons want to chime in? This really isn't my forte. Larry "Mary Marzano" wrote in message . .. I was referred here by someone in alt.home.lawn-garden and hope someone can help! I live in north central Texas ...north of Dallas and south of Sherman if that helps. I have three huge cottonwood trees that are in front of my house. And another tree I'm trying to identify---they ALL seem to be losing leaves. Isn't it awfully early for fall? Do cottonwoods lose leaves in late July? I'm very worried...The last two days I've dragged the hose over to them and just let it run at a low drip so the trees hopefully get 'filled' up as far as water goes. Of course, I'm watching not to drown them or anything, but have been wondering if there's maybe too little water getting to them. I've checked for any evidence of insect infestation and see none. The trees are dropping leaves rapidly, as if it's fall. The trees on the branches look fine, the trees themselves still look filled with leaves, but the ground is covered with leaves already, as if it were fall. This is my first summer here, so I don't know if this is normal or not. I moved here last November and there were tons of leaves then.... Any advice or ideas would be greatly appreciated. mary |
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