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Bioactivities of the extracts from Rhododendron molle flowers against beet armyworm \%Laphygma exigua\%

Zhong Guo

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Abstract

Preliminary studies on the bioactivities of the extracts from Rhododendron molle flowers against beet armyworm Laphygma exigua were conducted.The values of medium antifeeding concentration (AFC 50 ) of R Ⅲ and ethyl acetate (EtOAc) extract against 3 rd larvae of L.exigua were 30.71 and 808.82 mg·L -1 in no choice tests,and were 7.30 and 650.43 mg·L -1 in choice tests,respectively.Given the treated diet with R Ⅲ and EtOAc extract for 48 h to larvae and after 5 days treatment,the values of IC 50 (the medium inhibitory concentration) were 13.11 and 1 153.78 mg·L -1 ,resp.

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Preliminary studies on the bioactivities of the extracts from Rhododendron molle flowers against beet armyworm Laphygma exigua were conducted.The values of medium antifeeding concentration (AFC 50 ) of R Ⅲ and ethyl acetate (EtOAc) extract against 3 rd larvae of L.exigua were 30.71 and 808.82 mg·L -1 in no choice tests,and were 7.30 and 650.43 mg·L -1 in choice tests,respectively.Given the treated diet with R Ⅲ and EtOAc extract for 48 h to larvae and after 5 days treatment,the values of IC 50 (the medium inhibitory concentration) were 13.11 and 1 153.78 mg·L -1 ,resp.

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Available abstract

Preliminary studies on the bioactivities of the extracts from Rhododendron molle flowers against beet armyworm Laphygma exigua were conducted.The values of medium antifeeding concentration (AFC 50 ) of R Ⅲ and ethyl acetate (EtOAc) extract against 3 rd larvae of L.exigua were 30.71 and 808.82 mg·L -1 in no choice tests,and were 7.30 and 650.43 mg·L -1 in choice tests,respectively.Given the treated diet with R Ⅲ and EtOAc extract for 48 h to larvae and after 5 days treatment,the values of IC 50 (the medium inhibitory concentration) were 13.11 and 1 153.78 mg·L -1 ,resp.

Key concepts: Exigua, Beet armyworm, Spodoptera, Larva, Botany, Biology, Ethyl acetate, Horticulture

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Bioactivities of the extracts from Rhododendron molle flowers against beet armyworm \%Laphygma exigua\% — Research Paper | ScholarLens