NEW BACILLUS THURINGIENSIS AND INSECT PEST CONTROLLING AGENT CONTAINING THE SAME AND PLANT PROTECTING METHOD

摘要

PURPOSE:To obtain an insect pest controlling agent containing a crystalline protein-enclosed body produced by a specific new bacterial strain of Bacillus thuringiensis as an active ingredient, having quick-acting property and free from influence of spore. CONSTITUTION:This insect pest controlling agent contains a crystalline protein- enclosed body produced by a new bacterial strain R-3-6 (FERM-P-14032), R-3-11 (FERM-P-14033) or R-4-4 (FERM-P-14034) of Bacillus thuringiensis as an active ingredient. The new bacterial strain is free from influence of spore on rate at which effect of a crystalline protein-enclosed body is expressed and exhibits quick-acting property and high herbicidal activity.