Although defoliation economic thresholds (ETs) in soybean are well-established, there concerns about Spodoptera spp. and Helicoverpa damaging pods flowers. Moreover, S. eridania is the most common species of its genus feeding on Brazil. On this account, we quantified larvae leaves, flowers BRS388RR BRS1001IPRO cultivars laboratory. In field, trials were conducted testing artificial injuries for...

The genus Helicoverpa includes several agricultural pests globally. armigera was reported in countries South America 2013, and Puerto Rico, 2014. This territory is considered an hub, with a high-input system of seed production the southern region island, also at edge continental U.S. Possible natural dispersion populations H. from Caribbean or other Central American regions poses continuing ris...

Primers previously designed to amplify microsatellite DNA markers in the Old World bollworm, Helicoverpa armigera, larvae were tested in three closely related species: the corn earworm, Helicoverpa zea, tobacco budworm, Heliothis virescens, and Heliothis subflexa. Of the fourteen loci surveyed, only four loci (HaB60, HaC14, HaC87, HarSSR1) consistently demonstrated scorable single-copy microsat...

Extensive crop sampling for Helicoverpa spp. pupae was undertaken (2017–2021) to provide insights as how pest population dynamics have altered in a subtropical cropping system following the introduction of transgenic Bt cotton and newer generation insecticides pulse production. Previously (1996–1999), pattern year-round cycling build-up identified occur between summer (non-Bt) winter chickpea, ...

Insecticidal cry and vip genes from Bacillus thuringiensis (Bt) have been used for control of lepidopteran insects in transgenic crops. However, novel genes are required for gene pyramiding to delay evolution of resistance to the currently deployed genes. Two PCR-based techniques were employed for screening of cry2-type genes in 129 Bt isolates from diverse habitats in India and 27 known Bt str...

Bitkisel üretimde ürün kayıplarına neden olan bitki koruma sorunları doğası gereği dinamiktir. Uygun mücadele programı agro ekosistemde sorunların iyi analiz edilmesine bağlıdır. Üreticilerin konu hakkında yeterli bilgi düzeyine sahip olması uygulamanın başarısını arttırmaktadır. Bu çalışmanın amacı Manisa ovası (Şehzadeler ve Saruhanlı) pamuk üreticilerinin uygulamalarında karşılaştıkları beli...