Peach tree insect problem - Ask Extension
I have a peach tree that appears to have an insect problem. There are two spots on the tree that are affected. When it's wet out the tree oozes a ...
Knowledgebase
Peach tree insect problem #190584
Asked June 12, 2014, 10:41 AM EDT
I have a peach tree that appears to have an insect problem. There are two spots on the tree that are affected. When it's wet out the tree oozes a thick, brownish jelly-like substance with no noticeable smell. Yesterday I noticed skin that was shed by a bug sticking out of the area (photos are attached.) What is the best way to get rid of these insects and help my tree get healthy again. Thank you
Jefferson County Colorado
Expert Response
Your peach has a fungal disease called Cytospora canker. It is common on stressed peaches and cherries. Generally the best approch is to encourage vigorous new growth in an attempt to "outrun" Cytospora canker. So, by 15-20 June, suggest you fertilize the peach with a granular or liquid fertilizer that has a higher first number, ex: 20-10-5.
Avoid tree fertilizer "spikes". There is no need or benefit to apply fertilizer at the trunk; instead concentrate on the area halfway out to branch extremities to a few feet beyond branch extremities.
Your peach will hopefully respond with new growth and larger leaves.
Keep in mind too that most peaches only live 12-25 years before they should be replaced.
I can't tell what the insect is, but it's probably a borer that attacks stressed trees/peaches. Borer adults are beetles or moths; yours has pupated and exited the tree as an adult. You're seeing the pupal skin left behind as the adult exited the tree.
Avoid tree fertilizer "spikes". There is no need or benefit to apply fertilizer at the trunk; instead concentrate on the area halfway out to branch extremities to a few feet beyond branch extremities.
Your peach will hopefully respond with new growth and larger leaves.
Keep in mind too that most peaches only live 12-25 years before they should be replaced.
I can't tell what the insect is, but it's probably a borer that attacks stressed trees/peaches. Borer adults are beetles or moths; yours has pupated and exited the tree as an adult. You're seeing the pupal skin left behind as the adult exited the tree.
