When Spodoptera exigua multicapsid nucleopolyhedrovirus (SeMNPV) is grown in insect cell culture, defective viruses are generated. These viruses lack about 25 kbp of sequence information and are no longer infectious for insects. This makes the engineering of SeMNPV for improved insecticidal activity or as expression vectors difficult to achieve. Recombinants of Autographa californica MNPV have ...

the effects of four corn hybrids, keynes540, keynes410, ksc260 and ksc400, were investigated on life table parameters of the beet armyworm in a growth chamber that was set at 25 ± 1 ºc, 65 ± 5% rh and 16:8 (l: d) photoperiod. the highest survivorship (lx) of adults were 0.77, 0.70, 0.62 and 0.58 on ksc260, keynes410, keynes540 and ksc400, respectively. the highest age-specific fecundity (mx) of...

Spodoptera exigua H. is a pest on shallot plants. S. control usually performed using synthetic insecticides. However, its use can cause negative impacts humans and the agricultural environment. Therefor, it needs alternative insecticides that are safer environmentally friendly such as Zingiber officinale var. Rubrum. The purpose of this research was to obtain effective concentration red ginger ...

The genome sequence of an alphabaculovirus isolated from a Peridroma species indicated that it is a novel member of a group II lineage most closely related to alphabaculoviruses from Spodoptera exigua and Agrotis segetum. It contains a genome of 151,110 nucleotides (nt), with a G+C content of 53.3%.

cold hardiness is one of the most common adaptations of insects at low temperatures. to understand the cold hardiness strategy of beet armyworm, spodoptera exigua (hübner), six temperature treatments were tested on the last instar larvae. supercooling points of treatments were not significantly different. two sugars, glucose and trehalose, as well as three polyols, myo-inositol, glycerol and so...

Field populations of Hypothenemus hampei (Ferrari), Plutella xylostella (L.), Spodoptera exigua (Hübner), Helicoverpa zea (Boddie) and Bemisia tabaci (Gennadius) were tested for resistance to several insecticides commonly used in Nicariagua. Assays were conducted to estimate the LD50s or LC50s and the corresponding resistance ratios. A diagnostic concentration was used to discriminate between s...