Análise da problemática dos Bruquideos (Coleoptera) em ervilha armazenada numa perspectiva de protecção integrada

Abstract

Bruchids (Coleoptera: Bruchidae) are considered the main enemies of stored pulses. In the 32 samples of stored peas (Pisum sativum L.) collected in different areas of Portugal, 96% of the insects found were Bruchidae. Of these, 93% were Bruchus pisorum (L.), which was detected in all samples. The other bruchids found were: Bruchus rufimanus Boh., Bruchus tristiculus Fahr., Acanthoscelides obtectus (Say), Spermophagus sericeus (Geoffr.) e Zabrotes subfasciatus (Boh.). For the evaluation of pea varieties resistance to bruchids attack, the mean number of attacked seeds was used as the evaluation parameter. The varieties Ucero, Solara and Talanda were the most promising ones in order to be used as an alternative or complement of pesticides. Other control methods, which still need to be developed for an efficient control of bruchids in stored peas, are also discussed.