Chemical Compounds and Bioactivity of Aqueous Extracts of Alibertia spp. in the Control of Plutella xylostella L. (Lepidoptera: Plutellidae)
نویسندگان
چکیده
Successive applications of insecticides to control Plutella xylostella L. (Lepidoptera: Plutellidae) have resulted in the emergence of resistant populations of this insect. A novel control measure for this target insect could be the use of botanical insecticides derived from plant tissues. Hence, we experimentally tested aqueous extracts of Alibertia edulis (Rich.), Alibertia intermedia (Mart.), and Alibertia sessilis (Vell.) K. Schum. found in the Brazilian savannah in order to investigate their potential to disrupt the life cycle of P. xylostella. Aqueous extracts of the leaves of A. intermedia and A. sessilis negatively affected the development of P. xylostella in all stages of the life cycle, prolonging the larval stage and causing mortality in the larval or pupal stages. Treatments with A. intermedia and A. sessilis extracts caused the lowest fecundity and the number of hatched larvae. The harmful effects of these aqueous extracts on the life cycle of P. xylostella may be attributable to the flavonoids and other phenolic compounds present in A. intermedia and A. sessilis. These aqueous botanical extracts are low in toxicity when compared to non-aqueous pesticides, and may emerge as an effective approach for control of populations of P. xylostella.
منابع مشابه
اثرات مواد همراه برتر و دی جی در کارایی برخی سموم متداول روی لارو سن سوم شب پره پشت الماسی (Plutella xylostella (L.) (Lepidoptera: Plutellidae
شب پره پشت الماسی، (Plutella xylostella (L.) (Lepidoptera: Plutellidae یکی از مهمترین آفات گیاهان تیره چلیپاییان در سراسر دنیا می باشد. در این تحقیق اثر برخی حشره کشهای متداول در کنترل شب پره پشت الماسی و تاثیر مواد همراه برتر (Bar-Tar®) و دی جی (DG®) در کاهش دز مصرفی این حشره کش روی لارو سن سوم این آفت بررسی گردید. میزان غلظت کشنده 50 درصد برای حشره کشهای ایندوکساکارب، تیودیکارب و هگز...
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