Should the time of year for bagworm spraying move up?

Asked March 2, 2018, 12:47 PM EST

I see from your website that the best time to spray for bagworms is "between mid June and mid July". I was wondering with the mild winter and warm February days will that affect when the bagworms emerge and can be sprayed?

Baltimore County Maryland insect pests bagworms time to spray

1 Response

The above time frame is a guideline for spraying. We cannot say for sure if the time frame should be moved up due to weather conditions. Start monitoring for bagworms about a month earlier. If you see small bags or activity at that time you can spray.
http://extension.umd.edu/hgic/bagworms-trees-and-shrubs

mh