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

Field Crops 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 MarAprMayJunJulAugSepOct
Soybeans
Bean leaf beetle.---*****---------*****--.
Green cloverworm...--------****---.
Green stink bug....--*******-.
Mexican bean beetle.---*****-----******---.
Soybean podworm....--******---.
Small Grains
Aphids--------.....----
Armyworm..---********....
Fall armyworm.......----
Cereal leaf beetle.---******....
Hessian fly......-****
Corn
Cutworm.--*********-...
Flea beetle.-********---...
Armyworm..---*******--...
Fall armyworm...--*********--.
Rootworm larvae..-******--...
Rootworm adults....--******--.
Eur. corn borer larvae..-*****--*****--..
Alfalfa
Alfalfa weevil adults*---.--****----*********.
Alfalfa weevil larvae--********--....
Potato leafhopper..--*******---..
Tobacco
Flea beetle.-****--****----****--..
Cutworm.---*****-....
Aphids..----*******---.
Hornworm..-****----*****--.
Budworm..-*****--******..

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