Distribution of Aerially Applied Bacillus Thuringiensis for Controlling Defoliating Insects in a Hardwood Forest

摘要

Both Dipel(R) and Thuricide(R) (Bacillus thuringiensis) water-base spray formulations were aerially applied at a rate of 2 gal/acre to the semiclosed canopy of an oak forest in New York State to develop improved methods for controlling the gypsy moth. Techniques have been developed for quantifying spray deposit directly on hardwood foliage.