Blog Banner

Japanese Beetle News

Current information for homeowners and agricultural producers

Japanese Beetle Update by Dr. Phil Nixon

Many Japanese beetle larvae did not survive the winter, particularly in the northern half of the state. Research has shown that Japanese beetle grubs do not migrate deeper than 11 inches into the soil for the winter. They die if the soil temperature reaches 15 degrees F or if they are subjected to freezing temperatures for 2 months. Last winter the soil was frozen to 15 inches deep in central...

Read More >

2014 Beetle Update

Extension Entomologist Phil Nixon provided the following update during an academic horticulture team meeting on May 19 th . Now is the prime time for Emerald Ash Borer insecticide treatments as the new leaves are expanding. Go to for treatment options. We expect a reductio...

Read More >