Control of Fannia canicularis (L.) in Utah Dairy Barns1

Abstract
In 1957, studies were made in the Cache Valley, near Logan, Utah, to evaluate the effectiveness of parathion-Diazinon impregnated cords and malathion-DDVP poison baits for controlling Fannia cauicularis (L.). Cords were installed in dairy barns, calf pens, and loafing sheds at rates of about 30 feet of cord (3/32" diameter) per 100 sq. feet of floor area. Satisfactory control of F. canicularis was obtained in five of the six treated dairies throughout the 12-week observation period and prevailed at the sixth dairy for 9 of the 12 weeks. Dry poison baits applied in plywood hays at a dosage of 4 oz./1000 sq. feet of floor area failed to provide significant reduction of F. canicularis in the two dairies tested.

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