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Journal of Agricultural Science and Technology، جلد ۲۲، شماره ۵، صفحات ۱۲۷۹-۱۲۹۳

عنوان فارسی اثرات لاروکشی و بازدارندگی تخم‌گذاری عصاره‌های داتوره (Datura stramonium) روی بید کلم (Plutella xylostella)
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عنوان انگلیسی Larvicidal and Oviposition Deterrent Effects of the Jimsonweed (Datura stramonium) Extracts on the Diamondback Moth, Plutella xylostella
چکیده انگلیسی مقاله The importance of the diamondback moth, Plutella xylostella (L.), has dramatically risen mainly due to the overuse of broad-spectrum insecticides, which has resulted in increased selection for pesticide resistance, destruction of natural enemies, and pest resurgence. These issues accompanied by increasing insecticide residue on crops have created an urgent need for more sustainable strategies for P. xylostella management. The present study examined the efficacy of extracts from different parts of the jimsonweed, Datura stramonium L., as larvicide and oviposition deterrent on P. xylostella larvae and adults, respectively. Bioassays revealed higher toxicity (LC50 and LC90) of flower (82.3 and 1,475.4 mg L-1), seed (146.8 and 4,828.7 mg L-1) and root (165.3 and 3,493.8 mg L-1) extracts of D. stramonium compared with leaf (526.6 and 29,352.1 mg L-1) and stem (841.4 and 136,248.1 mg L-1) extracts. In addition, flower extract showed the greatest toxicity between the extracts based on LC50 dose ratio (0.561, 0.498, 0.156 and 0.098) and LC90 dose ratio (0.306, 0.422, 0.050 and 0.011) when compared with seed, root, leaf and stem extract, respectively. Furthermore, oviposition deterrence tests using sublethal doses exhibited that the highest oviposition inhibition was provoked by flower extract of D. stramonium (63.0%) compared with root (46.0%), seed (43.8%), stem (33.7%), and leaf (28.3%) extracts. Results indicated that jimsonweed extracts could be used as an effective pesticide and oviposition deterrent against P. xylostella. Possibilities for application of D. stramonium extracts in pest management and for developing a botanical insecticide or an oviposition deterrent in context of sustainable pest management are discussed.
کلیدواژه‌های انگلیسی مقاله Botanical pesticides,Cruciferae,Pest management,Plant extract

نویسندگان مقاله J. Karimzadeh |
Department of Plant Protection, Isfahan Agricultural and Natural Resources Research and Education Center , AREEO, Isfahan, 81785-199, Islamic Republic of Iran.

A. Rabiei |
Department of Plant Protection, Isfahan Agricultural and Natural Resources Research and Education Center , AREEO, Isfahan, 81785-199, Islamic Republic of Iran.


نشانی اینترنتی https://jast.modares.ac.ir/article_16482_eca15c65d1d9f5ee0be3cd6f3996e979.pdf
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