Results 161 to 170 of about 5,525 (203)

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
openaire   +3 more sources

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.
openaire   +3 more sources

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
openaire   +2 more sources

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
openaire   +1 more source

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
openaire   +1 more source

Larval Mortality Factors of Spodoptera Littoralis in the Azores

Biocontrol, 2005
Mortality among larval developmental stages of Spodoptera littoralis (Boisduval) (Lepidoptera: Noctuidae), was determined by weekly sampling on weeds in a pasture on Sao Miguel Island (Azores, Portugal), from August to December, over a 3-year period (1999–2001). In all the years surveyed, larvae of S.
Tiago Martins, Luísa Oliveira, Patrícia Garcia   +2 more
openaire   +1 more source

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
openaire   +1 more source

Spodoptera littoralis . [Distribution map].

Distribution Maps of Plant Pests, 2005
Abstract A new distribution map is provided for Spodoptera littoralis (Boisd.) (Lep., Noctuidae) (Cotton Leafworm of Egypt or Egyptian Cotton Worm). Host Plant: Polyphagous. Information is given on the geographical distribution in EUROPE, Crete, France, Greece, Italy, Majorea, Malta, Spain, ASIA, Bahrain ...
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2019
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openaire   +1 more source

Spodoptera littoralis (cotton leafworm)

PlantwisePlus Knowledge Bank, 2022
openaire   +1 more source