University of Kentucky -- College of
Agriculture -- Department of Entomology

Landscape Insects Calendar for Kentucky


This table shows

Please note:

Key:

- or * indicates insect populations likely to be present

* indicates peak population levels likely

Multiple peaks indicate the particular insect species produces more than one generation per year.

Pest Activity Mar Apr May Jun Jul Aug Sep Oct
Pine needle scale.--**************-..
Pine aphids.--******--..--****
Virginia pine sawfly.--******-....
Introduced pine sawfly..--******--********--
Redheaded pine sawfly.--*****************---.
Dogwood borer..-****....
Lilac borer.-*********--...
Peachtree borer...**********---.
Lesser peachtree borer..--*******-------..
Bronzed birch borer..--*********...
Flatheaded apple borer..--********---..
Boxelder twig borer.-***--.--************--
Maple bladder gall.--********---...
Maple petiole borer.--*****--....
Elm leaf beetle.--******************---
Hackberry psyllid--********--------------******
Yellow poplar weevil--**********--****--..
Japanese beetle...--********--..
Bagworms..--****************--.
San Jose Scale..-***--******-.
Oystershell scale.-********-....
Obscure scale....******..
Walnut scale..-**-----****---.
Juniper scale..-***--....
Eastern tent caterpillar-***********-....
Fall webworm..-******--********-.
Honeylocust plant bug.-******---....
Euonymus scale.--......
Pine bark adelgid.--......
Aphids (general).--.*****...

Cooperative Extension Service:
University of Kentucky, Kentucky State University, U.S. Department of Agriculture, and
Kentucky Counties, cooperating