After surveying 72 sites across Indiana and Illinois in the coldest part of our states where bagworms are found, we determined that while many bagworms were killed, enough survived to keep bagworms near the top of our landscape problem list. NOW is the time to inspect your plants for bagworms. For details on the cold snap and how to control bagworms see this article in the February issue of the Purdue Landscape Report. https://purduelandscapereport.org///article/824/
Young bagworms are now active and easy to control with insecticide
