Results 81 to 90 of about 10,501 (229)

LsFAMeT and LsJHAMT coordinate JH biosynthesis to regulate fecundity in Laodelphax striatellus

open access: yesInsect Science, EarlyView.
The small brown planthopper (SBPH), Laodelphax striatellus, can trigger large‐scale outbreaks when encountering suitable habitats during migration due to their strong reproductive ability. This study investigated the role of juvenile hormone (JH) in regulating SBPH reproduction.
Yan Guo   +3 more
wiley   +1 more source

Biochemical, structural and functional diversity between two digestive α-amylases from Helicoverpa armigera

open access: yes, 2015
Background: Helicoverpa armigera (Lepidoptera) feeds on various plants using diverse digestive enzymes as one of the survival tool-kit. The aim of the present study was to understand biochemical properties of recombinant α-amylases of H.
Bhide, Amey J.   +5 more
core   +1 more source

PENGARUH Zea mays L. DAN Tagetes erecta L. SEBAGAI TANAMAN PERANGKAP TERHADAP POPULASI Helicoverpa armigera Hubn. (LEPIDOPTERA: NOCTUIDAE) PADA TOMAT ORGANIK

open access: yesJurnal HPT (Hama Penyakit Tumbuhan), 2016
ABSTRAK Salah satu kendala dalam meningkatkan hasil produksi tomat adalah adanya serangan Helicoverpa armigera Hubn. Dalam pertanian organik, salah satu cara pengendalian yang dapat dilakukan adalah dengan menanam tanaman perangkap hama.
Fita Fitriatul Wahidah   +2 more
doaj  

History and Current Status of Development and Use of Viral Insecticides in China

open access: yesViruses, 2015
The use of insect viruses as biological control agents started in the early 1960s in China. To date, more than 32 viruses have been used to control insect pests in agriculture, forestry, pastures, and domestic gardens in China. In 2014, 57 products from
Xiulian Sun
doaj   +1 more source

Decades of Enclosure Protection Exert Composite Effects on Grassland Grasshopper Communities

open access: yesIntegrative Zoology, EarlyView.
Decades of enclosure protection have altered grasshopper community structure, with species‐specific effects on population dynamics. For the low‐mobility grasshopper Chorthippus fallax, abundance did not differ strongly between exclosure‐protected and overgrazed areas, but its egg development duration was longer in exclosures. The two C.
Dan‐dan Feng   +7 more
wiley   +1 more source

Characterization of a novel member of genus Iflavirus in Helicoverpa armigera [PDF]

open access: yesJournal of Invertebrate Pathology, 2017
The cotton bollworm, Helicoverpa armigera, is one of the most important agricultural pests of many economic crops worldwide. Herein, we found a novel single-strand RNA virus by RNA-Seq and Polymerase Chain Reaction (PCR) method in H. armigera named Helicoverpa armigera iflavirus (HaIV), which possessed a genome with 10,017 nucleotides in length and ...
Yuan, He   +5 more
openaire   +2 more sources

Helicoverpa armigera em trigo. [PDF]

open access: yes, 2017
Manejo de Helicoverpa armigera em trigo. Helicoverpa armigera: ciclo evolutivo. Nível de ação.
PEREIRA, P. R. V. da S.
core  

Learning in host selection in Helicoverpa armigera (Hubner) (Lepidoptera : Noctuidae)

open access: yes, 1998
The effect of experience on pre- and post-alighting host selection in adult female Helicoverpa armigera was tested in an indoor flight cage, and in a large greenhouse.
Wright, D.J.   +3 more
core   +1 more source

Impact of Host and Food Availability on Life‐History Traits in Six Egg Parasitoid Species of the Genus Trichogramma

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
In this study we measured the impact of access to sugar and hosts on the longevity and fecundity of six Trichogramma species: T. cacoeciae, T. chilonis, T. minutum, T. leptoparameron, T. pintoi and T. sibericum. The impact of food differed among species, but there was a general tendency of increased life expectancy and potential fecundity with sugar ...
Véronique Martel   +2 more
wiley   +1 more source

Species-specific evolution of lepidopteran TspC5 tetraspanins associated with dominant resistance to Bacillus thuringiensis toxin Cry1Ac

open access: yesJournal of Integrative Agriculture
Transgenic crops producing insecticidal proteins from the bacterium Bacillus thuringiensis (Bt) have proven to be highly effective in managing some key pests.
Chenyang Wang   +6 more
doaj   +1 more source

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