Results 41 to 50 of about 7,309 (149)

Response of Cytochrome P450 Expression to Maize Volatiles in Helicoverpa armigera (Hübner)

open access: yesJournal of Integrative Agriculture, 2013
The 7-ethoxycoumarin O-deethylase (ECOD) activities of cytochrome P450s and differential expression of six cytochrome P450 genes induced by the volatiles from both damaged and undamaged maize plants were investigated in the cotton bollworm, Helicoverpa ...
Shao-ying WU   +3 more
doaj   +1 more source

Diminishing returns from increased percent Bt cotton: the case of pink bollworm. [PDF]

open access: yesPLoS ONE, 2013
Regional suppression of pests by transgenic crops producing insecticidal proteins from Bacillus thuringiensis (Bt) has been reported in several cropping systems, but little is known about the functional relationship between the ultimate pest population ...
Yunxin Huang   +5 more
doaj   +1 more source

Iflaviruses in arthropods: when small is mighty

open access: yesInsect Science, EarlyView.
Many arthropod species harbor iflaviruses, which often cause covert (asymptomatic) infections, but may still affect host fitness. We review the impact of iflaviruses on arthropod fitness, immunity, behaviour as well as the iflavirus’ host range, transmission, tissue tropism and the interactions with other microorganisms within arthropods.
Annamaria Mattia   +3 more
wiley   +1 more source

Relationship between cotton planting date and two bollworms associated with their natural enemies

open access: yesBulletin of the National Research Centre, 2021
Background Cotton is the most widespread, profitable non-food crop in the world. Egypt is one of the greatest countries in producing cotton (Gossypium hirsutum L.) in the world.
Zakaria Abdelhalim Attia   +2 more
doaj   +1 more source

Biopotency of Salicylic Acid against Oviposition and Feeding Behavior of Pectinophora gossypiella in Cotton

open access: yesBiology and Life Sciences Forum, 2023
Pectinophora gossypiella (Saunders) is a potential threat for the successful cultivation of cotton all over the world. Despite the use of modern management strategies, the damage caused by this pest is increasing.
Muhammad Rehan Akhtar   +1 more
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

Suitability of Satellite Imagery for Surveillance of Maize Ear Damage by Cotton Bollworm (Helicoverpa armigera) Larvae

open access: yesRemote Sensing, 2023
The cotton bollworm (Helicoverpa armigera, Lepidoptera: Noctuidae) poses significant risks to maize. Changes in the maize plant, such as its phenology, influence the short-distance movement and oviposition of cotton bollworm adults and, thus, the ...
Fruzsina Enikő Sári-Barnácz   +8 more
doaj   +1 more source

The dual crisis: Climate change simultaneously drives pollinator decline and pest outbreaks

open access: yesAgricultural and Forest Entomology, EarlyView.
Climate change acts as an asymmetric ecological filter, favouring r‐selected pest traits (rapid reproduction, generalism) while disadvantaging K‐selected pollinators. For every 1°C of warming, bee species richness declines ~25% since the 1990s, while pest‐induced crop losses increase by 10%–25%. A network‐centric approach integrating climate‐responsive
Diriba Fufa Serdo
wiley   +1 more source

Degree day-based model predicts pink bollworm phenology across geographical locations of subtropics and semi-arid tropics of India

open access: yesScientific Reports, 2021
There is a global concern about the effects of climate change driven shifts in species phenology on crop pests. Using geographically and temporally extensive data set of moth trap catches and temperatures across the cotton growing states of India, we ...
Babasaheb B. Fand   +7 more
doaj   +1 more source

Pest‐preservation paradox among insects

open access: yesConservation Biology, EarlyView.
The pest‐preservation paradox is a non‐binary perspective that insects range from those that are harmful and requiring management on the one side, to those requiring conservation intervention on the opposite end of the spectrum. Importantly, the vast majority of insects occur somewhere in the center of the two extremes, and their position along the ...
Michael J. Samways   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy