Flindersine, an alkaloid isolated from Toddalia asiatica, was evaluated for their antifeedant, larvicidal and growth inhibitory activities against Helicoverpa armigera, Spodoptera litura and larvicidal activity against vector mosquitoes Anopheles stephensi and Culex quinquefasciatus. For this, leaf disc no choice method was used for agricultural pests; larvicidal activity was tested on second a...

Foliar chemicals are variable within a plant and this may affect herbivore feeding preference. This study was carried out to quantify concentrations of primary (nitrogen, water, and total nonstructural carbohydrates) and secondary substances (sinigrin) in young and old leaves of Raphanus sativus L. and to evaluate performance and survival of a generalist herbivore Spodoptera litura F. feeding o...

Spodoptera litura (S. litura) is one of the most serious agricultural insect pests worldwide. Takeout (TO) is involved in a variety of physiological and biochemical pathways and performs various biological functions. We characterized 18 S. litura TO genes and investigated their differential responses to insecticides and sex pheromones. All predicted TO proteins have two Cysteines that are uniqu...

If the carbon dioxide (CO(2)) concentration in the atmosphere changes in the future, as predicted, it could influence crops and insect pests. The growth and development of the tobacco caterpillar, Spodoptera litura (Fabricius) (Noctuidae: Lepidoptera), reared on peanut (Arachis hypogea L.) foliage grown under elevated CO(2) (550 ppm and 700 ppm) concentrations in open top chambers at Central Re...

The role of microRNA bantam, one of the most abundant microRNAs in Sf9 cells, was studied for its role in baculovirus infection in vitro and in vivo. The expression level of bantam was increased after AcMNPV infection in Sf9 cells and in Spodoptera litura larvae. In Sf9 cells, application of bantam inhibitor or mimic altered the expression of many virus genes, the most affected gene being lef8,...

A critical component for sustaining adequate food production is the protection of local agriculture from invasive pest insects. Essential to this goal is the ability to accurately distinguish foreign from closely related domestic species, a process that has traditionally required identification using diagnostic morphological "keys" that can be both subtle and labor-intensive. This is the case f...

Cyclophilin D (CypD) is regulated during the innate immune response of insects. However, mechanism by which CypD activated under immunosuppression not understood. Microplitis bicoloratus bracovirus (MbBV), a symbiotic virus in parasitoid wasp, bicoloratus, suppresses immunity parasitized Spodoptera litura. Here, we demonstrate that MbBV promotes acetylation S. litura, resulting an immunosuppres...

The bio-efficacy of endosulfan 0.07% with different quality of water as spray fluid was studied against different larval instars of Spodoptera. litura in laboratory condition. Among the four different quality of water, rain water and river water as spray fluid proved to be most effective while sea water as spray fluid resulted in low per cent mortality in different instars of S. litura, due to ...

Eight lepidopteran cell lines were established recently and their susceptibility to different insect viruses was studied. Two Spodoptera litura cell lines from the larval and pupal ovaries, were found highly susceptible to S. litura nuclear polyhedrosis virus (SLNPV, 5-6 x 10(6) NPV/ml). The Helicoverpa armigera cell line from the embryonic tissue was highly susceptible to H. armigera NPV (HaNP...

The present study was carried out to investigate the effect of entomopathogenic fungus, Beauveria bassiana on immune response mediated Phenoloxidase enzyme of Spodoptera litura larvae. To measure the PO enzyme activity, haemolymph of 3rd, 4th and 5th instar larvae of S. litura were treated with different doses of 1.0×108, 2.0×107, 4.0×106 and 8.5×105 spores/ml of B. bassiana. The results indica...