Abstract
Hoffman and Gingrich (1968), in a field test conducted under farm conditions showed that the organism Bacillus Thuringiensis, Berliner may be of value in controlling poultry lice. The test suggested that further work would be needed to draw the final positive conclusions.A report of a severe louse infestation in pheasant breeders gave us an opportunity to do a second field trial. One hundred and forty breeders were sprayed with an orchard sprayer containing 0.5 lbs. of Biotrol® BTB 25-W, mfg. Nutrilite Products, Inc., per gallon of water. There was a total of 1½ gallons used so that one gallon sprayed approximately 100 birds.The louse population decreased greatly within one week, when the first check was made. Weekly checks were made thereafter for several weeks. No values were established because of difference in bird infestation and the desire of the owner to disturb these breeders as little as necessary. .
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