Lethal effects of spinosad and azadirachtin on the cotton leafworm, spodoptera littoralis (BOISD.) (lepidoptera: noctuioae)
Hatem, A. E.
Lethal effects of spinosad and azadirachtin on the cotton leafworm, spodoptera littoralis (BOISD.) (lepidoptera: noctuioae) [electronic resource] تأثير الجرعه المميته لكلا من سبينوساد وأزاديراكتين على دودة ورق القطن. - p.273-282.
Includes reference.
Laboratory experiments have been conducted to determine the lethal effects of Spinosad and Azadirachtin on the cotton leafworm, Spodoptera littoralis (Boisduval) (Lepidoptera: Noctuidae) larvae by a diet incorporation bioassay. Newly molted third instar larvae were exposed through ingestion to different concentrations. Larval mortality of S. littoralis increased with the concentration resulting a LC₅₀ values of 1.38 µg/ml and 0.14 µg/ml for, Spinosad and Azadirachtin respectively, the mortality times decreased with the concentration Increase. Sublethal effects were studied by treating of third instar larvae with a concentration equivalent to the respective LC₅₀. Both insecticides significantly increased larval development period from treatment until pupation, but the effect of Azadirachtin was greater than pinosad.
Summary in Arabic.
Cotton leafworm.
Cotton--Diseases and pests
Spodoptera littoralis.
Fecundity.
Lethal effects of spinosad and azadirachtin on the cotton leafworm, spodoptera littoralis (BOISD.) (lepidoptera: noctuioae) [electronic resource] تأثير الجرعه المميته لكلا من سبينوساد وأزاديراكتين على دودة ورق القطن. - p.273-282.
Includes reference.
Laboratory experiments have been conducted to determine the lethal effects of Spinosad and Azadirachtin on the cotton leafworm, Spodoptera littoralis (Boisduval) (Lepidoptera: Noctuidae) larvae by a diet incorporation bioassay. Newly molted third instar larvae were exposed through ingestion to different concentrations. Larval mortality of S. littoralis increased with the concentration resulting a LC₅₀ values of 1.38 µg/ml and 0.14 µg/ml for, Spinosad and Azadirachtin respectively, the mortality times decreased with the concentration Increase. Sublethal effects were studied by treating of third instar larvae with a concentration equivalent to the respective LC₅₀. Both insecticides significantly increased larval development period from treatment until pupation, but the effect of Azadirachtin was greater than pinosad.
Summary in Arabic.
Cotton leafworm.
Cotton--Diseases and pests
Spodoptera littoralis.
Fecundity.