Abstract
AbstractA bioassay method was developed to use the parasporal crystal protein ofBacillus thuringiensisagainst plant-parasitic nematodes. Using this method, the parasporal crystal proteins of tenBtstrains showed activity against plant-parasitic nematodes. The toxicity of YBT-021 againstMeloidogyne hapla,Pratylenchus scribneri,Tylenchorhynchussp.,Ditylenchus destructorandAphelenchoidessp. was also assayed. The resulting LC50values were 35.62 μg/ml, 75.65 μg/ml, 94.31 μg/ml, 215.21 μg/ml and 128.76 μg/ml, respectively.
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