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Determination of the evaluation period of non-preference of sorghum to the greenbug, Schizaphis graminum Rond Homoptera Aphididae Determinacao do periodo de avaliacao de nao-preferencia do sorgo ao pulgao-verde, Schizaphis graminum Rond Homoptera Aphididae


Determination of the evaluation period of non-preference of sorghum to the greenbug, Schizaphis graminum Rond Homoptera Aphididae Determinacao do periodo de avaliacao de nao-preferencia do sorgo ao pulgao-verde, Schizaphis graminum Rond Homoptera Aphididae



Anais da Sociedade Entomologica do Brasil. Junho; 272: 299-302



To determine the evaluation period of preference of the greenbug, Schizaphis graminum (Rond.) to sorghum (Sorghum bicolor) genotypes, a study was conducted at the Embrapa/National Corn and Sorghum Research Center, Sete Lagoas, MG, using different sources of resistance. Cultivars were randomized within pots and 11-d after planting five apterous adult greenbugs/plant were released in the center of the pot. Evaluations based on the number of insects in each genotype, after 24, 48, 72 and 96 hours of the insects release indicated that 72 hours after infestation was the ideal period to evaluate the non-preference of S. graminum to sorghum.

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