onion thrips, thrips tabaci, is the most important pest of onion in isfahan. onion growers often rely on the pesticide spraying. imidacloprid is frequently used against this pest. to investigate the thrips resistance to this insecticide, 10 onion-growing regions of isfahan were selected. after their laboratory rearing, certain concentrations of imidacloprid were applied to these populations, us...

Laboratory bioassays were carried out with four neonicotinoid insecticides on multiple strains of Bemisia tabaci (Gennadius) to evaluate resistance and cross-resistance patterns. Three imidacloprid-resistant strains and field populations from three different locations in the southwestern USA were compared in systemic uptake bioassays with acetamiprid, dinotefuran, imidacloprid and thiamethoxam....

Secondary kill of the German cockroach, Blattella germanica (L)., by baits was reported to increase the overall control efficacy of bait products. However, most studies have been based on laboratory strains and small nymphs. We compared the secondary kill of four cockroach gel baits against various developmental stages of a laboratory (Jwax) and a field (Dorie) strain B. germanica. The four bai...

Cotton whitefly, Bemisia tabaci is an important polyphagous pest worldwide. It exposed to various chemical insecticides throughout the year, resulting in rapid development of insecticide resistance. Mixtures with distinct modes action could enhance toxicity chemicals more effectively than sequences or rotations resistant populations. Bioassays were conducted study efficacy mixtures neonicotinoi...

The effect of neonicotinyl insecticides on integrated mite control in Washington apple was examined from 0 In a series of 20 field trials (54 treatments) designed primarily to look at efficacy against the codling moth, Cydia pomonella, nearly half of the treatments using four or more applications of acetamiprid had peak mite densities exceeding the economic threshold of 5 mites per leaf. Overal...

In this study, the development of imidacloprid and acetamiprid resistance in Myzus persicae populations relationship between neonicotinoid esterase enzyme were investigated seven which is collected from greenhouse pepper production areas 2018. order to determine ratios aphid against insecticides, 1 control 6 doses used. Each insecticide dose was used 3 replicates 25 adult female individuals eac...

1. Levels of azinphosmethyl (Guthion) resistance were low to moderate in codling moth populations throughout the state. 2. Populations high enough to screen against multiple chemistries had only low levels of resistance, preventing meaningful cross-resistance data for pyrethroids or chlorpyrifos (Lorsban). 3. A population with high azinphosmethyl resistance was identified near Manson during sec...

The midge Contarinia nasturtii (Keiffer), a serious gall-forming insect pest of cruciferous plants in Europe and southwestern Asia, was Þrst reported in the United States in summer 2004. It had not been recorded in North America until its discovery in Ontario, Canada, in 2000. EfÞcacy of 20 insecticides belonging to 12 different classes was evaluated by using a foliar spray, soil drench, or see...

Acetamiprid is a first generation systemic neonicotinoid insecticide, routinely used for crop protection against sucking type insects. It is likely to be of low toxicity in mammals but severe poisoning may occur if ingested in large amount. A case of buffalo with accidental ingestion of acetamiprid was presented with severe gastrointestinal symptoms and respiratory distress. The patient w...

Tomato leafminer, Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) is one of the most destructive pests of tomato in many parts of the world including Iran. The toxicity of emamectin benzoate alone and combined with acetamiprid, eforia (thiamethoxam + lambda-cyhalotrin) and hexaflumuron was evaluated against 2nd instar larvae of Tuta absoluta (Meyrick) under 25 ± 1 °C, the relative humidity of ...