Granular matrix formulation of Bacillus thuringiensis for control of the European corn borer (Lepidoptera: Pyralidae) von Ridgway, R.L. (Beltsville Agricultural Research Center, USDA, ARS, Beltsville, MD.), Illum, V.L, Farrar, R.R. Jr, Calvin, D.D, Fleischer, S.J, Inscoe, M.N

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