Abstract
The stablefly, or "dog fly," Stomoxys calcitrans, breeds extensively in shore deposits of several spp. of bay grasses which are deposited by tides during the late summer and early fall in n.-w. Florida. Tests during 1941 with 17,750 gallons of material on 14.07 miles of bay grass tide drifts showed that a mechanically prepd. creosote-water emulsion can be used successfully and economically in treating bay grass for control of breeding of this pest. Bay grass treated with creosote and bay water remains treated for > 1 month, and grass once well treated does not subsequently breed any dog flies. By eliminating the cost of Diesel oil as a diluent, by reducing transportation costs, and by speeding up spray operations, at least $15,000 can be saved by the use of the creosote-water emulsion instead of a creosote and Diesel oil soln. for a dog fly control program extending from Pensacola to Apalachicola, Fla.

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