The study was conducted in the northern Texas Rolling Plains in 1999 to define the relationship between number of cotton aphids, Aphis gossypii Glover, and resulting contamination of cotton lint by honeydew. Whole-plot treatments were three furrow irrigation management treatments: cotton grown without supplemental irrigation (dryland), irrigated cotton with last irrigation in mid August, and ir...

Egg strings and nauplii of the salmon louse Lepeophtheirus salmonis were exposed to a variety of medicinal compounds at 50 mg L(-1) for 30 min in two experiment series. This medicine concentration was selected as a starting point for a screening series. Hatching of egg strings and development to copepodid larvae were monitored in one experiment, and the survival and development of nauplii were ...

The dissipation profiles of the acaricides abamectin, hexythiazox, and spiromesifen in fruits eggplant (Solanum melongena L.) grown under field conditions Najran, Saudi Arabia, were studied. Extraction was performed with acetonitrile, UPLC-MS/MS used for quantification. Instead conventional adsorbents, a 2-fold dilution sample extract quickly efficiently reduced interfering co-extracts matrix e...

GSTs (Glutathione S-transferases) are known to catalyze the nucleophilic attack of sulfhydryl group reduced glutathione (GSH) on electrophilic centers xenobiotic compounds, including insecticides and acaricides. Genome analyses polyphagous spider mite herbivore Tetranychus urticae (two-spotted mite) revealed presence a set 32 genes that code for secreted proteins belonging GST family enzymes. T...

Two greenhouse pot experiments were conducted to assess the effectiveness of dried leaf powder and extractives (ethanolic, aqueous extracts) Moringa(Moringa oleifera) or organic fertilizer (vermicompost) two commercial products namely BioNematon (Purpureocillium lilacinum) Abamectin, Gold (Streptomyces avermitilis) on eggplant growth parameters Meloidogyne incognita infection. In both observed ...

As key pollinators, bees are frequently exposed to multiple environmental stresses and have developed crucial mechanisms by which they adapt these stressors. However, the molecular bases mediated at gene level remain be discovered. Here, we found four heat shock protein DnaJB subfamily genes, DnaJB6 , DnaJshv DnaJB13 DnaJB14 from Apis cerana that all J domains in their sequences. The expression...

Field assessment of integrated management BT cotton pests was carried out in two consecutive seasons; 2016/2017 and 2017/2018 the experimental research farm Kassala University, Sudan. Four insecticides (imidacloprid, abamectin, profenofos, lufenuron) from different chemical groups with a mode action three levels (43.81 kgha-1, 87.62 131.43 kgha-1) soil-applied nitrogen were tested IPM package. ...

Abstract Chemical pesticides are essentially hazardous. The risks differ from compound to compound, and much of the information on their actions insect development remains be captured. toxicity abamectin (a macrocyclic lactone, acting glutamate-gated chloride channels insects), fipronil phenylpyrazole, disrupting GABA receptors) was given embryos short-horned grasshopper Heteracris littoralis (...