BIOLOGIA COMPARADA DE Spodoptera frugiperda (J. E. Smith, 1797) VISANDO AO SEU ZONEAMENTO ECOLÓGICO NO ESTADO DO PIAUÍ"
2008
João Cristino Andrade Pinheiro | Luiz Evaldo de Moura Pádua | Gilson Lages Fortes Portela | Rommel Tito Pinheiro Castelo Branco | Adriana Saraiva dos Reis | Paulo Roberto Ramalho Silva
Studied biology of Spodoptera frugiperda (J. E. Smith, 1797) in four constants temperatures (20º, 25º, 30º, 32ºC) and with fotofase of twelve hours. With to determinate and goal termic constant of differents fases with the biologic cycle and avaliate the behavior in differents temperatures, viewing the zoneament ecologic in Piauí State. The temperature effected markedly the biologic cycle of the insect the graving and less termic. The bases temperature of the period of the egg, larva, pupa and the cycle total were 13,28; 13,07; 15,29; 13,84ºC, respectively and the constantly termics 35,56; 251,76; 96,57; 381,01 degree-days, respectively. Through the totally the degrees days the probably numbers annually of the insect for the Piauí State that various of 10,7 the 12,6.
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