Seeping and Bugs on Cottonwood - Knowledgebase Question

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Question by victoriairic
September 26, 2008
My cottonless cottonwood is seeping pretty heavily. It also has bugs that are round and fat. We've sprayed and kill off the bugs but more keep coming. What is it???


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Answer from NGA
September 26, 2008

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The seeping sap indicates injury to the tree, perhaps from borers. Without actually seeing the insects, I can't really identify them. Collect a few and take them to your local nursery or cooperative extension office for positive identification. Once you know what the pests are you can use a pest-specific insecticide to control them. Then, with the bugs gone, the tree can begin to heal itself. As soon as it can seal up the injuries, it should not seep sap. Best wishes with your landscape!

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