Tolerance of the Eqyptian cotton leafworm Spodoptera littoralis (Lepidoptera: Noctuidae) to ingested phytoecdysteroids
1996
Blackford, M. | Clarke, B. | Dinan, L.
The Egyptian cotton leafworm Spodoptera littoralis is remarkably resistant to exogenous ecdysteroids, and is able to tolerate both prolonged exposure to artificial diets containing up to 100 ppm 20-hydroxyecdysone (20E) and single dose administration of up to 10 micrograms ecdysone or 20E without any adverse effects on growth and development. In addition, it feeds readily on Chenopodium album, a plant which has been shown to contain levels of ecdysteroid reaching 175 ppm. The significance of these results in relation to the phytoecdysteroid content of the larval host plants of S. littoralis is discussed.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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