Results 31 to 40 of about 4,809 (186)

Isolation and Cultivation of Penicillium citrinum for Biological Control of Spodoptera litura and Plutella xylostella

open access: yesFermentation, 2023
Biological control agents are a promising substitute for chemical pesticides in agricultural pest management. In this study, Penicillium sp. with high pathogenicity to the agricultural pests oriental leafworm moth (Spodoptera litura) and diamondback moth
Hoang Chinh Nguyen   +8 more
doaj   +1 more source

Keberhasilan hidup parasitoid Diadegma semiclausum Hellen dan serangga inangnya Plutella xylostella (L.) terhadap aplikasi ekstrak biji srikaya (Annona squamosa L.)

open access: yesJurnal Entomologi Indonesia, 2018
Control of Plutella xylostella L. can be done both biologically and chemically. Biological control is generally done by utilizing plant extracts to kill insect pests.
Bonjok Istiaji   +2 more
doaj   +1 more source

Insect attraction versus plant defense: young leaves high in glucosinolates stimulate oviposition by a specialist herbivore despite poor larval survival due to high saponin content. [PDF]

open access: yesPLoS ONE, 2014
Glucosinolates are plant secondary metabolites used in plant defense. For insects specialized on Brassicaceae, such as the diamondback moth, Plutella xylostella L.
Francisco R Badenes-Perez   +2 more
doaj   +1 more source

Bacillus thuringiensis Suppresses the Humoral Immune System to Overcome Defense Mechanism of Plutella xylostella

open access: yesFrontiers in Physiology, 2018
Background:Plutella xylostella has become a notorious pest of cruciferous crops all over the world. Delta-endotoxins of Bacillus thuringiensis are widely used insecticidal proteins for controlling P. xylostella.
Shuzhong Li   +8 more
doaj   +1 more source

High‐throughput transcriptome mining and in silico screening reveal saccharide feeding stimulants for Cydia pomonella larvae

open access: yesNew Plant Protection, EarlyView.
We identified and characterized the gustatory and ionotropic receptors of Cydia pomonella using transcriptomics and in silico approaches, linking candidate sugar receptors to larval feeding attraction. Functional assays and behavioral tests highlighted isoquercitrin as a key feeding stimulant, providing a foundation for olfactory‐ and taste‐based pest ...
Chenyun Ding   +6 more
wiley   +1 more source

SYN‐A, a naturally derived synergist, restores pyrethroid efficacy against cabbage stem flea beetle but negatively impacts its parasitoid Microctonus brassicae

open access: yesPest Management Science, EarlyView.
SYN‐A, a naturally derived synergist, inhibited key metabolic pathways associated with pyrethroid insecticide resistance in cabbage stem flea beetle (CSFB) and its parasitoid Microctonus brassicae. SYN‐A restored pyrethroid efficacy against resistant CSFB allowing up to 80% reduction in application rates.
Patricia A. Ortega‐Ramos   +2 more
wiley   +1 more source

Susceptibility of Phthorimaea absoluta (Meyrick) (Lepidoptera: Gelechiidae) to novel and established insecticides in Brazil: resistance survey, baseline, and implications for management

open access: yesPest Management Science, EarlyView.
Baseline susceptibility of Phthorimaea absoluta to novel insecticides isocycloseram and tolfenpyrad was established in Brazil. Diagnostic doses were proposed for early resistance detection. Early tolfenpyrad tolerance and abamectin‐driven cross‐tolerance to isocycloseram via oxidases highlight cross‐resistance risks, emphasizing the need for routine ...
Vitor Quintela   +4 more
wiley   +1 more source

Induction of Resistance Against Plutella xylostella (L.) (Lep.: Plutellidae) by Jasmonic Acid and Mealy Cabbage Aphid Feeding in Brassica napus L.

open access: yesFrontiers in Physiology, 2018
The diamondback moth, Plutella xylostella (L.), has become the most destructive insect pest of cruciferous plants, such as B. napus throughout the world including Iran.
Gadir Nouri-Ganbalani   +3 more
doaj   +1 more source

The continuing significance of chiral agrochemicals

open access: yesPest Management Science, Volume 81, Issue 4, Page 1697-1716, April 2025.
In the time frame 2018–2023, around 43% of the 35 chiral agrochemicals introduced to the market (herbicides, fungicides, insecticides, acaricides, and nematicides) contain one or more stereogenic centers in the molecule, and almost 69% of them have been marketed as racemic mixtures of enantiomers or stereoisomers.
Peter Jeschke
wiley   +1 more source

Molecular mechanisms of sex determination in Lepidoptera: current status and perspectives

open access: yesInsect Science, EarlyView.
The genetic basis of sex determination in Lepidoptera was discovered in 2014 in the silkworm Bombyx mori. In this model species, the W chromosome‐derived small piRNA called Fem piRNA downregulates the expression of a Z‐linked gene, Masculinizer (Masc), which leads to the default female‐specific splicing of the doublesex gene (dsxF) and thus to female ...
František Marec   +2 more
wiley   +1 more source

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