For more on Cottonwood diseases click on this picture and read more.
Cottonwoods are in the poplar family and often grow to be very large trees. Cottonwoods are fast growing trees that have a huge drawback that often keeps homeowners from planting them. And that problem just so happens to be in their name. The cotton that they produce can be overwhelming when they become larger. Lots of homeowners complain that there yards look like they are covered with snow in the summer becuase the cotton gets so thick.
Despite the cotton problem cottonwood trees are harmed by many insects. So many in fact that I found a really good link that is below that can help you further if you think your cottonwood tree is diseased and may need some attention.
The most destructive insects to the cottonwood trees are cottonwood leaf beetles (shown top right). They infest cottonwood tree and start to eat off all of the leaves. There are many borers that affect the cottonwood trees. Results of what these borers do to a tree can be found on the right side of this page.
Other insects that harm cottonwood trees are leaf curl mites, viceroy butterflies, tentmakers, leaf hoppers and many other insects. Four different fungus rots affect the cottonwood tree. There are also several leaf associated diseases that harm the cottonwood trees as well. Here are some things to look for in your cottonwood tree:
Die back in sections or large limbs
Holes in trunk
Woodpeckers are present (they eat the larvae)
Severe leaf damage
Large infestations noticeable
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