Results 11 to 20 of about 26,948 (256)

Battle in the New World: Helicoverpa armigera versus Helicoverpa zea (Lepidoptera: Noctuidae). [PDF]

PLoS ONE, 2016
The corn earworm Helicoverpa zea (Boddie) and the old world bollworm Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) are allopatric species and occur in important agricultural crops. In maize, both species tend to infest the ear.
José P F Bentivenha, Silvana V Paula-Moraes, Edson L L Baldin, Alexandre Specht, Ivana F da Silva, Thomas E Hunt   +5 more
doaj   +7 more sources

The Spread of Helicoverpa armigera (Lepidoptera: Noctuidae) and Coexistence with Helicoverpa zea in Southeastern Brazil [PDF]

Insects, 2017
Helicoverpa armigera, one of the world’s most destructive crop pests, was first documented in Brazil in 2013. Within a few months, this polyphagous insect had spread over the Northeast and Central-West of Brazil, causing great agricultural losses.
Fábio A. Pinto, Marcos V. V. Mattos, Farley W. S. Silva, Silma L. Rocha, Simon L. Elliot   +4 more
doaj   +4 more sources

Suppression of Calcineurin Enhances the Toxicity of Cry1Ac to Helicoverpa armigera [PDF]

Frontiers in Microbiology, 2021
Insect resistance to Bacillus thuringiensis (Bt) insecticidal proteins has rapidly evolved with the expansion of the planting area of transgenic Bt crops. Pyramiding RNA interference (RNAi) and Bt in crops is urgently needed to counter the rapid increase
Jizhen Wei, Xue Yao, Shuo Yang, Shaokai Liu, Shuai Zhou, Junjuan Cen, Xiaoguang Liu, Mengfang Du, Qingbo Tang, Shiheng An   +9 more
doaj   +3 more sources

Oviposition behavior of Helicoverpa armigera in soybean [PDF]

Arquivos do Instituto Biológico, 2020
ABSTRACT The objective of this study was to evaluate the oviposition behavior of Helicoverpa armigera confined in different adult pair density and growth stages of soybean plants, and the resistance of soybean genotypes to H. armigera in the category nonpreference for oviposition. The oviposition behavior of H. armigera was assessed using one, two, and
Renato Franco Oliveira de Moraes, Arlindo Leal Boiça Júnior, Wellington Ivo Eduardo, Zulene Antônio Ribeiro   +3 more
openaire   +5 more sources

Parental effects of Bt toxin and vitamin A on Helicoverpa armigera. [PDF]

PLoS One, 2022
The increase in the area cultivated with vitamin-enriched transgenic crops producing Bt toxin raises the question of whether the addition of vitamins will in any way mitigates the effect of the toxin on the phytophagous insects that feed on those crops.
López C, Zanga D, Juárez-Escario A, Muñoz P, Eizaguirre M.   +4 more
europepmc   +5 more sources

Evaluation of cellulose degrading bacteria isolated from the gut-system of cotton bollworm, Helicoverpa armigera and their potential values in biomass conversion

PeerJ, 2021
Background Cotton bollworm, Helicoverpa armigera is a widely distributed, devastating pest of over 200 crop plants that mainly consist of some cellulosic materials.
M. Dar, A. F. Shaikh, K. Pawar, Rongrong Xie, Jianzhong Sun, Sabariswaran Kandasamy, R. Pandit   +6 more
semanticscholar   +1 more source

Hybridization in heliothine moths: impacts on reproduction, pheromone communication, and pest management

Frontiers in Ecology and Evolution, 2023
Heliothine moths (Family Noctuidae : Subfamily Heliothinae) are ubiquitous crop pests with three documented species combinations known to hybridize: Helicoverpa zea x Helicoverpa armigera, H.
Victoria Ivey, Victoria Ivey, Neil Kirk Hillier   +2 more
doaj   +1 more source

Desenvolvimento de Helicoverpa spp. em milho Bt com expressão de diferentes proteínas [PDF]

Pesquisa Agropecuária Brasileira, 2016
Resumo: O objetivo deste trabalho foi avaliar os aspectos biológicos de Helicoverpa zea e Helicoverpa armigera (Lepidoptera: Noctuidae) em híbridos de milho com expressão de diferentes proteínas.
Christiane Almeida dos Santos, Rosangela Cristina Marucci, Tatiane Aparecida Nascimento Barbosa, Octavio Gabryel Araujo, José Magid Waquil, Aline Silvia Dias, Fabrício Carvalho Hebach, Simone Martins Mendes   +7 more
doaj   +2 more sources

Overview of Pest Status, Potential Risk, and Management Considerations of Helicoverpa armigera (Lepidoptera: Noctuidae) for U.S. Soybean Production

, 2021
Since its introduction and establishment in Brazil in 2013 and subsequent spread through most of Latin America, the Old World bollworm, Helicoverpa armigera (Hübner), has become an economically important pest of soybean, cotton, and other crops ...
F. Haile, T. Nowatzki, Nicolas Storer
semanticscholar   +1 more source

Effects of Helicoverpa armigera Egg Age on Development, Reproduction, and Life Table Parameters of Trichogramma euproctidis

Insects, 2021
Simple Summary This study evaluated the potential of Trichogramma euproctidis to parasitize Helicoverpa armigera eggs of different ages in laboratory arenas. H. armigera is a major pest of agricultural crops in Iran and other countries. T. euproctidis is
N. Atashi, P. Shishehbor, A. Seraj, A. Rasekh, S. A. Hemmati, E. Riddick   +5 more
semanticscholar   +1 more source