Results 51 to 60 of about 566,023 (280)

Evaluation of cotton germplasm for morphological and biochemical host plant resistance traits against sucking insect pests complex

open access: yesJournal of Cotton Research, 2021
Background Sucking insect pests cause severe damage to cotton crop production. The development of insect resistant cotton cultivars is one of the most effective measures in curtailing the yield losses.
Muhammad RIZWAN   +6 more
doaj   +1 more source

The complete genome assemblies of 19 insect pests of worldwide importance to agriculture

open access: yes, 2023
There are many insect pests worldwide that damage agricultural crop and reduce yield either by direct feeding or by the transmission of plant diseases. To date, control of pest insects has been achieved largely by applying synthetic insecticides. However,
Guest, M.   +12 more
core   +1 more source

Evolutionary trade‐offs between beauvericin production and growth define divergent virulence strategies in Beauveria

open access: yesPest Management Science, EarlyView.
Two virulence strategies in Beauveria: a growth strategy characterized by rapid within‐host proliferation, and a toxin strategy involving antimicrobial activity and toxicity to insects Abstract BACKGROUND Pathogen virulence is often attributed to toxin production, yet toxins are metabolically costly and may not universally enhance fitness.
Shasha Hu   +3 more
wiley   +1 more source

Frequency and Abundance of Selected Early-Season Insect Pests of Cotton [PDF]

open access: yes, 2018
The use of insecticides at planting has been a common crop management practice in cotton for several decades. Historically, U.S. cotton growers relied on in-furrow applications of insecticides, such as aldicarb, to control early-season insect pests.
Randall G Luttrell   +4 more
core   +2 more sources

Transcriptomic resources and functional validation of RNAi in the cabbage seedpod weevil, Ceutorhynchus obstrictus

open access: yesPest Management Science, EarlyView.
Transcriptome sequencing of Ceutorhynchus obstrictus revealed RNA interference (RNAi) targets; double‐stranded RNA microinjection reduced transcript levels and increased mortality, with αCOP and Rop showing strongest lethal effects, indicating promising RNAi‐based pest control candidates.
Apurva Vikas Sabnis   +8 more
wiley   +1 more source

Novel Biopesticides Based on Recombinant Avidin for Protection of Crops Against Insect Pests [PDF]

open access: yes, 2012
Farmers are required to increase their food productivity to meet the demand from a continually enlarging population. A major constraint on meeting this requirement is the damage created by insect pests.
HINCHLIFFE, GARETH
core  

Effect of pyramiding Bt and CpTI genes on resistance of cotton to Helicoverpa armigera (Lepidoptera: Noctuidae) under laboratory and field conditions [PDF]

open access: yes, 2011
Transgenic cotton (Gossypium hirsutum L.) varieties, adapted to China, have been bred that express two genes for resistance to insects. the Cry1Ac gene from Bacillus thuringiensis (Berliner) (Bt), and a trypsin inhibitor gene from cowpea (CpTI ...
Xia, J.Y.   +5 more
core   +1 more source

Mortality in an invasive ant does not scale linearly with fipronil exposure

open access: yesPest Management Science, EarlyView.
Increasing fipronil concentration did not linearly increase yellow crazy ant mortality when introduced via horizontal transfer; high doses may limit food sharing. Queen mortality was low, and surviving workers were averse to feeding. Abstract Background Controlling eusocial invasive and other pestiferous insects is difficult.
Peter Yeeles, Angela Strain, Lori Lach
wiley   +1 more source

Insect and mite pests of pepino (Solanum muricatum Ait.) in Japan [PDF]

open access: yesBiodiversity Data Journal, 2019
To further increase the basic knowledge regarding the establishment of pest control for pepino (Solanum muricatum Ait.), we conducted surveys of pepino pests in Japan.
Tadashi Ishikawa, Ken Takahata
doaj   +3 more sources

Take flight: predation risk induces wing polyphenism and dispersal in the aphid Myzus persicae

open access: yesPest Management Science, EarlyView.
Predator risk above a critical density induces winged morphs in Myzus persicae, promoting dispersal and reducing predation compared with wingless aphids. This density‐dependent phenotypic plasticity enhances survival but may compromise biological control by facilitating aphid dispersal.
Jamin Ali   +5 more
wiley   +1 more source

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