Warm days likely bring ambrosia beetle attacks

Frass tooth-pick from adult ambrosia beetles boring into trees. Photo: SD Frank

With several days of warm weather be on the look out for ambrosia beetles in your nursery. You are trapping right?

Keep checking those traps. I already have reports of a few beetles trapped in the eastern part of the state. Do not over-water your trees. Media moisture over 50% makes trees more attractive to beetle attacks. Many species, like dogwood, are never attacked when media moisture is below 50%.

Read up on our past ambrosia beetle posts, industry publications, new media moisture thresholds, and a review in the Journal of IPM.

2017-06-19T09:30:21+00:00 February 21st, 2017|Categories: Ambrosia Beetles, Nursery IPM|Tags: , |