Ascher, K.R.S., Dept. of Toxicology, ARO, The Volcani Center, Bet Dagan, Israel
Eliyahu, M., Dept. of Toxicology, ARO, The Volcani Center, Bet Dagan, Israel
Glotter, E., Dept. of Biochemistry and Human Nutrition, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
Goldman, A., Dept. of Biochemistry and Human Nutrition, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
Kirson, I., Dept. of Biochemistry and Human Nutrition, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
Abraham, A., Dept. of Biochemistry and Human Nutrition, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
Jacobson, M., Biologically Active Natural Products Laboratory, Agricultural Environmental Quality Institute, Beltsville Agricultural Research Center, MD 20705, Beltsville, United States
Schmutterer, H., Institute of Phytopathology and Applied Zoology, Justus-Liebig University, Giessen, Germany
Eliyahu, M., Dept. of Toxicology, ARO, The Volcani Center, Bet Dagan, Israel
Glotter, E., Dept. of Biochemistry and Human Nutrition, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
Goldman, A., Dept. of Biochemistry and Human Nutrition, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
Kirson, I., Dept. of Biochemistry and Human Nutrition, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
Abraham, A., Dept. of Biochemistry and Human Nutrition, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
Jacobson, M., Biologically Active Natural Products Laboratory, Agricultural Environmental Quality Institute, Beltsville Agricultural Research Center, MD 20705, Beltsville, United States
Schmutterer, H., Institute of Phytopathology and Applied Zoology, Justus-Liebig University, Giessen, Germany
The antifeedant effect of several new withanolides on larvae of Spodoptera littoralis, Epilachna varivestis and Tribolium castaneum was investigated. 2,3-Dihydrowithanolide E (II) was an antifeedant for S. littoralis and E. varivestis; nicalbin A (XIV), and a mixture of withanicandrin (IX) and daturalactone A (X), were active against E. varivestis and T. castaneum. Some activity was shown by 6β,14α,17β,20αF-tetrahydroxy-1-oxowitha-2,4,24-trienolide (V) against S. littoralis; 4β,5β-epoxy-6α,14α,17β,20αF-tetrahydroxy-l-oxowitha-2,24-dienolide (VII) against E. varivestis and T. castaneum; 5α,6α,-epoxy-14α,17β,20αF-trihydroxy-1-oxowitha-2,24-dienolide (VI) against E. varivestis; and nicalbin B (XV) against T. castaneum. © 1987 Springer Science + Business Media B.V.
