background: several compounds obtained from plants have potential insecticidal, growth deterrent or repellent characteristics. the control of hard ticks by non-chemical substances was targeted in this study. methods: the effect of 36 materials on in-vitro ticks was studied, including 2 absolute controls (water only or ab­solute ethyl alcohol only), 6 conventionally used spinosad preparations (a...

The lesser mealworm (LMW, Alphitobius diaperinus (Panzer); Coleoptera: Tenebrionidae) is increasingly used as a novel food and feed source. materials on which this insect species reared may contain residues of insecticides from agricultural use. objective study was to determine whether selected insecticides, spiked the substrate, could bioaccumulate in LMW and/or affect growth or survival. Inse...

A new class of insecticide derived from fermentation of Sacharopolyspora spinosa - spinosad, has been indicated as being of low toxicity and a natural alternative to classical pesticides. In order to elucidate several aspects related to the morphophysiological changes induced by spinosad in Artibeus lituratus, the effects of a seven-day administration on plasma glucose, glycogen, protein and li...

Fifteen pesticides were tested in laboratory bioassays on Galendromus occidentalis (Nesbitt), the principal phytoseiid mite predator in Washington apple orchards. We developed a rating system for pesticides using lethal and sublethal effects, and applied the rating system to our results. At the 1 dose, only spinetoram and lambda-cyhalothrin caused >75% acute mortality of females. Carbaryl, azin...

Plutella xylostella L. is a most serious of insect pest for cruciferous or Brassica crops throughout the world. The common name of this insect pest is the Diamondback Moth (DBM). Plutella xylostella L. is an oligophagous insect which is feed on the group of botanically plants within the single plant family. This insect has become major serious problem to the crops because it easily and rapidly ...

BACKGROUND The housefly is a global pest that has developed resistance to most insecticides applied against it. Resistance of the spinosad-resistant strain 791spin and the neonicotinoid-resistant 766b strain is believed to be due to metabolism. We investigate differentially expressed genes in these two resistant strains related to metabolism in comparison with an insecticide-susceptible referen...

Originario de América tropical, el guanábano (Annona muricata) tiene gran potencial y expectativa producción en México. No obstante, presenta problemas plagas que limitan su cultivo. Uno estos es picudo del fruto (Optatus palmaris), cuyo daño demerita la calidad rendimiento. Se evaluaron los insecticidas repelentes: spinosad, spinoteram, azadiractina, lambda-cialotrina, clorpirifos, imidaclopri...

This study was conducted in Diyarbakır (Turkey) 2019 to determine the effects of natural insecticides, spinosad, azadirachtin and kaolin, on fourth instar nymphs adults Stephanitis pyri (Fabricius, 1775) (Hemiptera: Tingidae). The under laboratory conditions; 25 ± 1ºC, 65 5% humidity 16:8 h L:D photoperiod. mortality 3 6 d after treatment with kaolin 49, 44 11%, 54, 51 47%, respectively. 75, 11...

Insect pests in stored wheat cause significant losses and play an important role in the dispersal of viable fungal spores of various species including aflatoxin producing Aspergillus parasiticus. The problem of insecticide resistance in stored insects and environmental hazards associated with fumigants and conventional grain protectants underscore the need to explore reduced risk insecticides t...

During an outbreak of the diamondback moth, Plutella xylostella (L.), in California in 1997, nine populations were collected from the major broccoli areas throughout the state. Populations were assayed for their susceptibility to currently used materials (Bacillus thuringiensis subsp. kurstaki, permethrin, and methomyl) and to newer materials that had not yet been commercially used in Californi...