Effect on Horse Fly Populations of Aerial Spray Applications to Wooded Areas

Abstract
Comparable wooded areas heavily infested with tabanids were treated by plane with one of the following insecticides dispersed in a mixture of cyclohexanone and No. 1 fuel oil: methoxychlor, DDT, toxaphene or chlordane. Materials were applied at the rate of 2 lbs. of actual toxicant per acre. Results were erratic and no appreciable effect on fly populations could be demonstrated for any of the insecticides tried.

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