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Chilean Journal of Agricultural Research
Instituto de Investigaciones Agropecuarias, INIA
ISSN: 0718-5820
EISSN: 0718-5839
Vol. 72, No. 2, 2012, pp. 206-211
Bioline Code: cj12033
Full paper language: English
Document type: Research Article
Document available free of charge

Chilean Journal of Agricultural Research, Vol. 72, No. 2, 2012, pp. 206-211

 en DECREASE IN PUPATION AND ADULT EMERGENCE OF Plutella xylostella check for this species in other resources (L.) TREATED WITH HEXAFLUMURON
Mahmoudvand, Mohammad; Abbasipour, Habib; Garjan, Aziz Sheikhi & Bandani, Ali Reza

Abstract

The oligophagous pest Plutella xylostella check for this species in other resources (L.) is a major crucifer pest in Tehran Province, Iran. Hexaflumuron is an insect growth regulator insecticide with good effects on immature insect stages. The objective of this study was to investigate the effects of two sublethal concentrations (LC10 and LC25) of hexaflumuron on some biological parameters of P. xylostella larvae, such as birth rate (b), death rate (d), finite rate of increase (λ), generation time (T), sex ratio, pupation rate, and adult emergence. Results showed that hexaflumuron decreased the total number of eggs and oviposition and post-oviposition periods, pupation, and adult emergence in the treated generation, b, and λ. Hexaflumuron also increased T, d, and the preoviposition period. However, sex ratio, percentage of pupation, and adult emergence in the offspring generation were not affected by hexaflumuron. Overall, these results indicated that sublethal concentrations of hexaflumuron can affect the biological parameters of P. xylostella.

Keywords
Plutella xylostella, hexaflumuron, sublethal, birth rate, death rate, oviposition period

 
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