MSU Weed Science - Department of Crop and Soil Sciences
header
Oct 22nd, 2014

Free Extension Bulletins from the
MSU Field Crops Entomology Lab

This web site provides free extension materials on field crops insects.
Insecticide recommendations (MSU Bulletin E1582) are at the bottom of the page.

Armyworm
March of the armyworms  - corn  (pdf)
March of the armyworms  - wheat
  (pdf)

Blister beetle
Cantharidin content and lethal dose of common Michigan blister beetles  (pdf)

Bt/ GM Crops
Handy Bt trait table (pdf)
Top Ten Tips to Reduce Trait Torture (pdf)

Cereal Leaf Beetle (pdf)

Corn Blotch leafminer (pdf)

Corn Rootworm
Managing western corn rootworm resistance to Bt on the Fringe  (pdf)
Western corn rootworm adult-feeding on corn

Defoliators - Soybean
What the h*#& is defoliating my soybeans?
Silver-spotted skipper, a curiosity in soybean  (pdf)

Defoliators - Wheat
What the h*#& is head-clipping my wheat?  (pdf)
Armyworm
  (pdf)
Cereal leaf beetle  (pdf)
Grass sawfly (pdf)
Winter cutworm  (pdf)

Fleahopper

Garden fleahopper on soybeans  (pdf)

Grass Sawfly
Grass sawfly feeding in Michigan wheat fields (pdf)

Grubs
Identifying white grubs: No Its, Ands, or Butts. (pdf)
Asiatic garden beetle in Michigan field crops (pdf)
Asiatic garden beetle, a new pest of corn, potato, & alfalfa in SW Michigan (pdf)

Soybean Aphid
Heavy soybean aphid infestations on early-season soybeans (pdf)
Soybean aphid management in Michigan  (pdf)
Soybean aphid, a buckthorn bonanza  (pdf)

Spider Mite
Scouting and managing spider mite in soybean  (pdf)

Springtails
Springtail feeding on emerging crops (especially sugarbeets)  (pdf)

Stink Bugs
Stink bug damage to corn (pdf)
Brown marmorated stink bug moves into the midwest (pdf)

Western bean cutworm
Identification and life cycle (pdf)

Milk jug trapping  (pdf)
Realistic WBC moth identification from traps  (pdf)

First confirmation of corn damage in Michigan (2007)  (pdf)
First detection of WBC moth catch and larval feeding in Michigan (2006-2008)  (pdf)
Helpful pictures from a heavily infested field
(pdf)

Where are they now? Quick guide to WBC size and location on corn
(pdf)
WBC in whorl (V10-14) stage corn (pdf)
Update on corn research from the 2010 season (pdf)
Managing WBC in field corn (pdf)

WBC damage to dry beans  (pdf)
Managing WBC dry beans  (pdf)
Update on dry bean research in  the 2010 season (pdf)


Winter cutworm

Winter cutworm, Noctua pronuba: First report of economic damage in Michigan  
(pdf)

Other
Modified Corn Growth Staging (pdf)

 

INSECTICIDE RECOMMENDATIONS, MSU E-1582

To report corrections or changes, contact:
Insect sections: Chris DiFonzo, Field crops entomologist, 517-353-5328
Nematode section: Fred Warner, MSU Diagnostic Clinic, 517-432-1333

Seed treatments for Insect Control

Insect Scouting Calendar
Alfalfa insect pests
Corn insect pests
Dry bean insect pests
Grass hay insect pests
Soybean insect pests
Small grain insect pests (Wheat, oats)
Sugarbeet insect pests
Nematodes