Results 151 to 160 of about 25,611 (199)

Sex pheromone of the cotton leafworm, Spodoptera littoralis

Journal of Insect Physiology, 1974
Abstract cis -9, trans -11-Tetradecadien-1-ol acetate (A) and cis -9, trans -12-tetradecadien-1-ol acetate (B), the same compounds as the female sex pheromone of Spodoptera litura , were identified as major components of the female sex pheromone of the cotton leafworm, Spodoptera littoralis .
Y, Tamaki, T, Yushima
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Attraction of Spodoptera littoralis Larvae to Colours

Nature, 1973
DURING a research programme on phagostimulants1–3 for the larva of the Egyptian cotton leafworm, Spodoptera littoralis Boisd., it was found that their incorporation into poison baits did not sufficiently improve the latter's attractivity. Further stimuli, for example optical ones, seemed to be needed.
J. MEISNER, K. R. S. ASCHER
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The in vivo production of Spodoptera littoralis nuclear polyhedrosis virus

Journal of Virological Methods, 1998
The in vivo production of the nucleopolyhedrovirus (NPV) of the Egyptian cotton leafworm Spodoptera littoralis was studied experimentally. Larvae (7 days old) of 30-50 mg were experimentally infected with a range of NPV doses then harvested alive at various times after dosing to determine the effect of dose and incubation time on NPV productivity ...
D, Grzywacz, K A, Jones, G, Moawad, A, Cherry   +3 more
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Adipokinetic hormone-induced antioxidant response in Spodoptera littoralis

Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology, 2012
The antioxidative potential of the Manduca sexta adipokinetic hormone (Manse-AKH) in the last instar larvae of Spodoptera littoralis (Noctuidae, Lepidoptera) was demonstrated after exposure to oxidative stress (OS) elicited by feeding on artificial diet containing tannic acid (TA).
Večeřa, J., Krishnan, N., Mithöfer, A., Vogel, H., Kodrík, D.   +4 more
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Functional analysis of an immune gene of Spodoptera littoralis by RNAi

Journal of Insect Physiology, 2014
Insect immune defences rely on cellular and humoral responses targeting both microbial pathogens and metazoan parasites. Accumulating evidence indicates functional cross-talk between these two branches of insect immunity, but the underlying molecular mechanisms are still largely unknown. We recently described, in the tobacco budworm Heliothis virescens,
Ilaria Di Lelio, VARRICCHIO, PAOLA, DI PRISCO, GENNARO, MARINELLI, ADRIANA, Valentina Lasco, CACCIA, SILVIA, Morena Casartelli, Barbara Giordana, RAO, ROSA, Silvia Gigliotti, PENNACCHIO, FRANCESCO   +10 more
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Distribution of neuropeptides in the antennal lobes of male Spodoptera littoralis

Cell and Tissue Research, 2013
Olfaction is an important sensory modality that regulates a plethora of behavioural expressions in insects. Processing of olfactory information takes place in the primary olfactory centres of the brain, namely the antennal lobes (ALs). Neuropeptides have been shown to be present in the olfactory system of various insect species.
Kromann, S., Hansson, B., Ignell, R.
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Quantitative and ultrastructural changes in the haemocytes of Spodoptera littoralis (Boisd.) treated individually or in combination with Spodoptera littoralis multicapsid nucleopolyhedrovirus (SpliMNPV) and azadirachtin

Micron, 2014
The total haemocyte count (THC) and the possible ultrastructural alterations induced in the haemocytes of the fourth larval instars of the Egyptian cotton leafworm, Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae), 96 h post-feeding on a semi-synthetic diet, treated with the LC50 of Spodoptera littoralis multicapsid nucleopolyhedrovirus ...
El-Sayed H, Shaurub, Afaf, Abd El-Meguid, Nahla M, Abd El-Aziz   +2 more
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Ecdysteroid biosynthesis in larval testes of spodoptera littoralis

Insect Biochemistry and Molecular Biology, 1994
Abstract The ability of testes of the last larval instar of the cotton leafworm, Spodoptera littoralis to synthesise ecdysteroids was investigated. The endogenous ecdysteroid titres of both the testes and the haemolymph differed in their composition and times of peak concentration during this instar.
T.D. Jarvis, F.G.P. Earley, H.H. Rees
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Effects of Alfalfa Saponins on the Moth Spodoptera littoralis

Journal of Chemical Ecology, 2000
Alfalfa saponins administered to Spodoptera littoralis in the larval diet caused prolongation of the larval and pupal stages, retarded growth, increased mortality, and reduced fecundity and fertility. At least some of these effects were probably due to digestion problems manifested by longer food retention in the gut.
Manal M. Adel, František Sehnal, Marian Jurzysta   +2 more
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A Model Simulating Mating Behaviour of Spodoptera littoralis

The Journal of Applied Ecology, 1978
SUMMARY before control measures were simulated in the model. (4) The results suggest that the size of the overwintering population and the time it takes to emerge are critical factors. With a very small overwintering population, the best strategy to ensure establishment on a site is for emigration to be restricted at the beginning of the season and ...
P. M. Symmons, L. J. Rosenberg
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