Twelve experimental, water-base, Bacillus thuringiensis Berliner forestry formulations prepared by 2 manufacturers were characterized and their physical properties evaluated. Four Thuricide®-HPC and 4 Dipel® formulations were stable while 4 Dipel formulations readily separated into layers during short storage. Maywood, whey, and corn oil surfactants increased the viscosity which resulted in more stable formulations, Maywood surfactant also increased spread of formulations on foliage. Cargill's insecticide base (molasses) adjuvant resulted in the higher acidity of spray formulations as compared to polyethylene glycol. The various additives did not significantly improve sticking or retard evaporation of spray formulations. All formulations flowed through experimental spray equipment satisfactorily, were adequately atomized, and produced consistent drop size spectra.
Document Type: Research Article
Publication date: June 1, 1975
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Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.