Title: INFLUÊNCIA DE GENÓTIPOS DE COUVE ( Brassica oleracea L. var. acephala DC.) NA BIOLOGIA DE Plutella xylostella (L., 1758) (Lepidoptera: Plutellidae) Influence of cabbage genotypes (Brassica oleracea L. var. acephala DC.) on the biology of Plutella xylostella (L., 1758) (Lepidoptera: Plutellidae)
Abstract: The purpose of this study was to evaluate the effect of cabbage genotypes (Brassica oleracea L. var. acephala DC.) on growth of Plutella xylostella (Lepidoptera: Plutellidae). The genotypes evaluated were: Manteiga of Ribeirao Pires I-2620, Roxa I919, Manteiga of Sao Jose, Manteiga of Monte Alegre, Pires 2 of Campinas, Couve Comum, Couve of Arthur Nogueira 2, Couve of Arthur Nogueira 1. Neonate larvae were reared in 8 cm leaf discs of each genotype. The parameters evaluated were: period and viability of the larval and pupal stages, sex ratio, longevity and fecundity of adults. Parametric and Cluster analyses were used for data analysis. Overall, it was observed a developmental delay in the P. xylostella cicle, larger pupal, higher viability and fecundity during the second generation. Couve of Arthur Nogueira 2 was less favorable to the development of P. xylostella in the two generations, and Couve Comum was not an appropriate host for the insect in the second generation. Manteiga of Ribeirao Pires I-2620 was the most susceptible in both generations belonging to the same cluster with Pires 2 of Campinas and Manteiga of Sao Jose in the second generation.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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