Wheat

Wheat Seeding
Date:
Around time for first killing frost.
Rate: 72-120lbs. per acre
pH Level: 5.8 - 6.2

Hessian Fly

 
         
         
       
 

Hessian Fly
The hessian flyer can usually be controlled by planting resistant varieties and/or planting after fly-free date, which varies from early September to early October. Plowing under infested fields immediately after harvest can also help. Volunteer wheat can be disked under to prevent later summer infestations.

The hessian fly is similar in appearance and size to a small mosquito. The life span of the adult is generally no more than 5 days. The hessian fly completes two generation per year. The spring generation emerges from the flaxseed stage when the average daily temperature is 45 to 50 F.

Emergence usually occurs over several weeks, during which time females lay eggs on wheat leaves (in some cases rye or barley). The newly hatched maggots work their way under the leaf sheath near the nodes. Maggots change to puparium about the wheat heads out, and remain in stubble as "flaxseeds" until fall. Adults of the fall generation begin emerging about early September and live about three days, during which time the females lay eggs. Larvae hatch and begin feeding on young wheat seedlings.

Plant injury caused by larval feeding stunts the plant. Stunted plants usually wither and die. If they survive, their growth and yield are reduced. Significant grain yield reduction can be expected when 20% or more of the tiller are infested. Infested tiller are dark green.
 

 
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Clark Seeds Inc  -  1467 Seven Hickories Road  -  Clayton, DE 19938  -  Phone: (302) 653-9249

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