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I discovered on my peach tree there is a white larvae that has burrowed into the base of the trunk and a sticky peach colored substance is there. The rest of the tree looks healthy, but I only have about five peaches that made it this year. This is the third year for this tree, and when it was only a year oldit produced 35 peaches. Also, there are these black bugs with red heads on the tree that I have never seen before. HELP! I really want to save this tree!

Answer(s)

A

It sounds like your peach tree has greater Peachtree borer.  The larva can be killed by inserting a knife or wire into the empty holes.  I have included a link to a fact sheet that has more information on this insect as well as recommendations for control and management. 

http://extension.usu.edu/files/publications/factsheet/greater-peachtree-borers07.pdf

I have also included a link to the sign up page for the Tree Fruit IPM Advisory.  This is a newsletter that is sent out with up to date information on pests and diseases happening in our area as well as recommendations.  These newsletters have a great deal of valuable information and can be a great help in your home orchard. 

http://utahpests.usu.edu/ipm/htm/subscriptions


As far as the insect goes, it is difficult for me to say for certain what type it is without actually seeing it.  If you could bring a sample into our office at 2001 S. State Street #S2100 we can help you identify it. 

Posted on 23 Jul 2009

Heidi Wayman
Horticulture Intern, Salt Lake County

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