The toxicity of three insecticides to Lysiphlebus fabarum (Marshall) (Hymenoptera: Braconidae: Aphidiinae), a parasitoid of Aphis fabae Scopoli (Hemiptera: Aphididae), was investigated using IOBC/wprs protocols. Abamectin 1.8 EC, imidacloprid 350 SC, and pymetrozine 25 WP were tested under laboratory conditions at recommended field rates. Immature stages of the parasitoid were exposed to materi...

a 'worst case' laboratory method was employed for evaluating total effect of four pesticides (imidacloprid, dichlorvos, pymetrozine and abamectin) on the nymphs mortality and adults reproduction in orius albidipennis reuter (hemiptera: anthocoridae). the bioassays were carried out in laboratory using drum cell method, under controlled conditions of: 27±1?c, rh of 65±5% and 16-h photo ...

effects of four pesticides (imidacloprid, dichlorvos, pymetrozine and abamectin) were evaluated on life table parameters of orius albidipennis (reuter). pesticides were used at the concentrations recommended by the manufacturers. the bioassays were carried out using drum-cell method, in a growth chamber at 27 â± 1âºc, r.h. of 65 â± 5% and 16 h photo phase. the net reproductive rate (r0) value f...

Thepotatopsyllid,Bactericera cockerelli(Sulc) (Hemiptera:Triozidae), is a seriouspest of potatoes (Solanum tuberosum L.) that can cause yield loss by direct feeding on crop plants and by vectoring a bacterial pathogen, Candidatus Liberibacer psyllaurous. Current pest management practices rely on the use of insecticides to control the potato psyllid to lower disease incidences and increase yield...

The potato psyllid, Bactericera cockerelli (Sulc) (Hemiptera: Triozidae), is a serious pest of potatoes (Solanum tuberosum L.) that can cause yield loss by direct feeding on crop plants and by vectoring a bacterial pathogen, Candidatus Liberibacer psyllaurous. Current pest management practices rely on the use of insecticides to control the potato psyllid to lower disease incidences and increase...

BACKGROUND Pymetrozine is a valuable novel insecticide for control of sucking insects, including the brown planthopper Nilaparvata lugens (Stål), one of the most serious pests on rice. This study was conducted to elucidate the action mechanisms of pymetrozine on the feeding behaviour of the planthopper. RESULTS The activity test showed that pymetrozine primarily functioned as an antifeedant t...

BACKGROUND Vector-borne plant disease management can be enhanced by deployment of antifeedants in addition to the use of broad-spectrum neurotoxic insecticides. The effects of pymetrozine on Asian citrus psyllid (ACP), Diaphorina citri Kuwayama, feeding behaviour, survival and transmission of Candidatus Liberibacter asiaticus (Las), the presumed causal pathogen of huanglongbing, were investigat...

The aim of this study was utilizing Kemin multi-enzyme in common carp (Cyprinus carpio) diet and investigating its impact on fish survival rates exposed to the lethal concentration of abamectin. For this purpose, 42 fish were divided into two experimental diets, containing 0 and 1000 mg/kg of diets for 6 weeks. LC50 of abamectin for fish dietary consumed Kemin multi-Enzyme was determined with d...

Chlorpyrifos has been used extensively for decades to control crop pests and disease-transmitting insects; its contribution increasing food security minimizing the spread of diseases well documented. Pymetrozine Avermectin (also known as abamectin) have replace toxic organophosphate insecticides (e.g., Chlorpyrifos) applied rice crops in China, where overuse pesticides occurred. In addition, cl...

The present work aimed to evaluate, through ten different studies, the therapeutic efficacy of a new pour-on formulation, containing 1.5 per cent ivermectin +0.5 per cent abamectin, against parasites of cattle. Results obtained on trials against Rhipicephalus (Boophilus) microplus showed that the pour-on combination of 1.5 per cent ivermectin +0.5 per cent abamectin obtained superior efficacy i...