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: , |

About the Author:

Steve Frank

I am broadly interested in the ecology and management of arthropod pests. Herbivorous arthropods cause extraordinary damage to plants in agricultural, urban, and natural ecosystems. Understanding interactions between pests and their environment, plant hosts, and natural enemies can improve management practices and reduce pesticide applications.