the beet armyworm (spodoptera exigua hübner) is an important pest of many agricultural crops all over the world. most of the sugar beet growing regions in iran are infested. in this study, the acute lethal effects of pyriproxyfen, spinosad, and indoxacarb as well as sublethal effects of pyriproxyfen on the 1st instar s. exigua were assessed by leaf dip bioassay method. mortality was recorded 48...

The Southern armyworm Spodoptera eridania (Stoll) (Lepidoptera: Noctuidae) is a polyphagous defoliator having wide host range including Soybean. They are one of the important defoliators in tropical and subtropical regions hemisphere. However, this pest reported for first time from Kolhapur, Maharashtra, India on Soybean [Glycine max (L.) Merill].

Fall armyworm is a polyphagous migratory pest. Insecticides are used as major components of integrated pest management to control the pest, however, full dependence on insecticides has made evolve resistance most insecticide classes.The involvement ofvoltage-gated sodium channels in excitation cells makes them primary target site large number synthetic and naturally occurring neurotoxins. Conse...

This work aimed to evaluate the resistance of maize genotypes under natural infestation fall armyworm, known as Spodoptera frugiperda, a polyphagous and highly mobile pest migratory insects, it causes considerable economic losses in several important crops, has more than 350 hosts plants, due its devastating nature, armyworm is considered be main corn crop, being responsible for causing product...

Fall armyworm (FAW) (Spodoptera frugiperda J.E. Smith) is a polyphagous pest, native to North and South America invasive in Eurasia Africa. Life cycle morphometric studies with the population of FAW Nepal were conducted under laboratory conditions Chitwan, Nepal. Gravid females laid an average 156.25 eggs per egg batch, 979.43 during their whole lifetime. The pre-oviposition period was 3.75 day...

The activities of two triterpenoids, ocotillone and cabraleadiol, and four limonoids, methyl angolensate, 3-beta-deacetylfissinolide, 7-deacetoxy-7-oxogedunin, and beta-photogedunin, isolated from arillus of Carapa guianensis and fruits and seeds of Cabralea canjerana (Meliaceae), were evaluated against the fall armyworm Spodoptera frugiperda. Gedunin was used as a positive control. 7-Deacetoxy...

The African armyworm, Spodoptera exempta, is a major pest in sub-Saharan Africa. A nucleopolyhedrovirus (NPV) is often recorded in later population outbreaks and can cause very high levels of mortality. Research has been addressing whether this NPV can be developed into a strategic biological control agent. As part of this study, the variation in natural populations of NPV is being studied. An ...