Showing papers in "Pesticide Biochemistry and Physiology in 2016"

TL;DR: The status of pyrethroid resistance in A. aegypti and A. albopictus is reviewed, mechanisms of resistance, fitness costs associated with resistance alleles and suggestions for future research are presented.

TL;DR: It is observed that AMPA and glyphosate trigger different mechanisms leading to decreases in chlorophyll content and photosynthesis rates in willow plants, which may be due to various glyphosate:AMPA ratios in those plants.

TL;DR: The susceptibility of twenty-one populations of Nilaparvata lugens to eleven insecticides by a rice-stem dipping method from 2012 to 2014 in eight provinces of China is determined and the activity of the detoxification enzymes of N. lugens showed a significant correlation with the log LC50 values of imidacloprid, dinotefuran and ethiprole.

TL;DR: In conclusion, azoxystrobin induced oxidative stress and genotoxicity in zebrafish livers.

TL;DR: Two P450 monooxygenase genes were reported to contribute importantly to imidacloprid resistance in the brown planthopper, Nilaparvata lugens and it was supposed that both P450 proteins were important for imidClinclinrid resistance, in which CYP6AY1 metabolized imidcloprid more efficiently and CYP 6ER1 gene could be regulated by imid ACLoprid to a higher level.

TL;DR: Results indicate the possible involvement of CYP6A2 in spirotetramat resistance and alpha-cypermethrin cross-resistance in the cotton aphid and have implications for the successful implementation of resistance management strategies for Aphis gossypii.

TL;DR: Screening of the strain JAS2 for auxiliary plant growth promoting activities revealed its remarkable capability of producing the indole acetic acid (IAA), hydrogen cyanide (HCN) and ammonia.

TL;DR: The diversified expression responses to insecticide exposure suggest that the LdGSTs may depend on a functionally complex system to detoxify different classes of insecticides.

TL;DR: The diamondback moth, Plutella xylostella, collected from Central China from 2013 to 2014 was determined with a leaf-dipping method and developed high levels of resistance to beta-cypermethrin and the activities of detoxification enzymes in field populations were significantly positively correlated with the log LC50 values of chlorantraniliprole and spinosad.

TL;DR: There are still large gaps in knowledge of chemical communication in the acarines compared to insects, especially relative to acarine pheromones, and more so for mites than ticks, however, the use of lure-and-kill and lure-enhanced biocontrol strategies has been investigated for tick and mite control, respectively, with significant environmental advantages which warrant further study.

TL;DR: Results showed that silencing GST14 increased the mortality of whiteflies to thiamethoxam in Bemisia tabaci, and only GSTs had significantly higher activity in the resistant strain than in the susceptible strain.

TL;DR: Evidence is provided that the G275E mutation is an important mechanism of resistance to spinosyns in T. absoluta, and may be used as a marker for resistance monitoring in field populations.

TL;DR: The present study clearly showed the active fractions from A. salvifolium as potential botanicals to control the larvae of S. litura and probably this will be used as an alternative for synthetic pesticides against the polyphagous pest like S.litura.

TL;DR: Results suggest that reduced 2,4-D translocation is the resistance mechanism in synthetic auxins R corn poppy populations and this likely leads to less ethylene production and greater survival in R plants.

TL;DR: Investigation of effects of DDT or DDE on adipogenesis using 3T3-L1 adipocytes suggests that increased lipid accumulation caused by DDT and DDE may mediate AMPKα pathway in 3T 3-L 1 adipocytes.

TL;DR: A strict regulation of the agrochemical application conditions in those environments near to places where wild populations of terrestrial and aquatic species live, in order to minimize the adverse effects on ecosystems is considered.

TL;DR: Results suggest that sublethal or lethal doses of spinetoram may cause outbreaks of the two-spotted spider mite T. urticae.

TL;DR: The obvious increase in resistance to dinotefuran in N. lugens indicates that insecticide resistance management strategies are urgently needed to prevent or delay further increase of insecticide resistant populations.

TL;DR: Investigation of insecticidal activities of lemongrass oil and citral, as well as the metabolism of citral in larvae of the cabbage looper, Trichoplusia ni, in associations with well-known enzyme inhibitors found no significant effect of enzyme inhibitors on diet consumption or citral metabolism.

TL;DR: Results demonstrate that cycloxaprid is a promising insecticide against imidacloprid-resistant A. gossypii and suitable for the integrated pest management.

TL;DR: Screening the induction of P450 genes by imidacloprid in the genome-scale will provide an overall view on the possible metabolic factors in the resistance to neonicotinoid insecticides.

TL;DR: This finding indicates that the recombination of different genes can enhance RNAi toxicity and be utilized to generate synthetic dsRNA with improved RNAi efficacy.

TL;DR: The results indicate that wooden EOs and their components can be used as fumigants or spray-type control agents against SWD.

TL;DR: Investigation of a field strain of Dusky cotton bug to assess its potential to develop resistance to chlorfenapyr revealed an autosomal and incompletely dominant mode of inheritance for chlorfenAPyr resistance in the Chlorfenapyrs-SEL population of DCB, and the results of the monogenic model test showed chlor Fenapyr resistance was controlled by multiple genes.

TL;DR: Bromfenvinphos triggers cell shrinkage and phospholipid scrambling of the erythrocyte cell membrane, an effect in part due to stimulation of ROS formation and Ca(2+) entry.

TL;DR: The increasing antioxidant enzyme activities enable P. americanum seedlings to cope with the oxidative stress induced by moderate concentrations (20mgkg-1 or below) of atrazine, and correlation analysis showed that the studied antioxidases were positively correlated with the exposure time, suggesting that the antioxidant defense in P. Americana seedlings might become stronger as the plant matures.

TL;DR: This study investigates the molecular immune response of honey bee workers at different developmental stages exposed to the acaricide coumaphos and the fungicide prochloraz individually and in combination to find changes in immune-related gene expression could result in depressed immunity of honey bees and their increased susceptibility to various pathogens.

TL;DR: Testing the effect of deltamethrin on fish heart function in vitro indicates that DM can be cardiotoxic to the crucian carp and that these effects could be due to DM related changes in Na(+) channel function.

TL;DR: The urinary metabonomics analysis indicated that the high and low-dose exposure of acetochlor could cause alterations of these metabonomicics in urine in the rat, illustrating the important utility of metabonomic approaches to understand the toxicity of long-term exposure ofacetochlor.

TL;DR: Results showed over-expression of a novel glutathione S-transferases (GSTs) gene (PcGSTm5) in abamectin-resistant P. citri, and it is here speculated that PcG STm5 may play a role in ab amectin detoxification through other pathway such as the antioxidant protection.