کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6373452 | 1624315 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Methyl eugenol bioactivities as a new potential botanical insecticide against major insect pests and their natural enemies on rice (Oriza sativa)
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The bioactivities of methyl eugenol (ME) against rice insect pests, the brown planthopper (BPH), Nilarparvata lugens, the leaf folder (RLF), Cnaphalocrocis medinalis, the striped stem borer (SSB), Chilo suppressalis, and their major natural enemies, a predator Cyrtorhinus lividipennis and parasitoids Anagrus nilaparvatae and Trichogramma japonicum were determined under laboratory conditions. The results showed ME had repellent, systemic and contact insecticidal activities against BPH. The nymphal mortality increased with raised ME concentrations. The LC50 value for BPH using an impregnated filter paper bioassay was 1025Â mg/L which was much lower than that of 3778Â mg/L obtained from an immersion bioassay. ME also had a contact toxicity against RLF larvae with a LC50 of 250Â mg/L. However, bioactivity of ME against SSB larvae was much lower than against RLF. Only 21.8% of 2nd instar SSB larvae died at 24Â h after being treated with 8000Â mg/L ME. In addition, ME also had contact toxicity to predator C. lividipennis and parasitic natural enemies A. nilaparvatae, T. japonicum, with LC50 values of 527, 105 and 123Â mg/L, respectively. Even so, the toxicity of ME to natural enemies was much lower than that of chemical insecticides.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Crop Protection - Volume 72, June 2015, Pages 144-149
Journal: Crop Protection - Volume 72, June 2015, Pages 144-149
نویسندگان
Hong-Xing Xu, Xu-Song Zheng, Ya-Jun Yang, Jun-Ce Tian, Yan-Hui Lu, Keng-Hong Tan, Kong-Luen Heong, Zhong-Xian Lu,