CUTWORM

Species: pale western cutworm (predominant in the north; more difficult to control because it remains underground) and army cutworm (numerous in southern MT; emerge at night to feed)

Yield reductions: when more than 2 PWC or 4 AC are found in one foot of row.

Favorable conditions: drought stress, stage of plant development, and size of worms.

Reference: MPHR 5/18/81
 
 

SAWFLY

Resistant varieties: Lew, Fortuna, Glenman, and Rambo (all spring wheat varieties)

Reference: Centrol Courier, 3/31/93
 
 

WHEAT CURL MITE

Pictures of wheat curl mite:

wheat curl mites - on wheat leaf

wheat curl mite (electron microscope)

(Aceria tulipae) (WSMV vector)
 
 

WHEAT STEM MAGGOT

(Meromyza americana)