BACKGROUND Insecticide resistance in Trialeurodes vaporariorum W. is unknown in the species' northern distribution range where it inhabits mainly commercial greenhouses. Resistance development in whiteflies feeding on year-round crops in greenhouses is possible owing to the use of chemical treatments to back up biocontrol. The authors tested the response levels to spiromesifen, pymetrozine and ...

the potato tuber moth (ptm), phthorimaea operculella (zeller) is one of the important pests of potato in tropical regions. in this research, the toxicity of two insecticides, abamectin and deltamethrin on p. operculella was studied at 26 ± 1 c°, 65 ± 5% rh and photoperiod of 16:8 h (l: d). the concentrations were determined by preliminary dose setting experiments. distilled water was used as co...

Abamectin has been used to control the diamondback moth, Plutella xylostella (P. xylostella), which is a major agricultural pest that can rapidly develop resistance against insecticides including abamectin. Although cytochrome P450 has been confirmed to play an important role in resistance in P. xylostella, the specific P450 genes associated with the resistance are unclear. The full-length cDNA...

AIM To evaluate the efficacy and safety of the novel anthelmintic combination, derquantel-abamectin, against gastrointestinal nematode populations in sheep, under field-use conditions. METHODS Controlled faecal egg count reduction tests (FECRT) were conducted in New Zealand in 14 trials, covering a range of geographic locations, farming enterprises, breeds, nematode populations, and anthelmin...

he objective of the present study was to evaluate the effect of abamectin on liver function of rats. Abamectin is used as antiparasitic drug in agricultural and domestic animals. Sixty adult male albino rats (150±10g) were classified into 3 groups: Group (1), Control group given tap water; Group (II) Sub-acute group orally treated with 2 /3 LD50 of abamectin (9.83 mg/kg b.w) for 21 days (4 dose...

Zebra chip (ZC), an economically important disease of potato, is caused by 'Candidatus Liberibacter solanacearum' (Lso) transmitted by the potato psyllid, Bactericera cockerelli (Šulc) (Hemiptera: Triozidae). Currently, using insecticides against potato psyllid is the only means to manage ZC. However, the ability of the potato psyllid to rapidly transmit Lso represents a substantial challenge i...

The toxicities of two new insecticides, hydramet.hylnon and abamectin, were evaluated against one susceptible and seven insecticide-resistant strains of 81attella gennanica. (L.) Both materials proved to be potent insecticides against the susceptible strain. There was no difference in toxicity, based on LTfoO values, of hydramethylnon between resistant and susceptible strains in a feeding bioas...

Efficacy of some insecticides (pymetrozine 50WG, sulfoxaflor 24SC and imidacloprid 17.8SL) was evaluated against rice white backed plant hopper (WBPH) Sogatella furcifera Horvath. Sulfoxaflor @218.7 g a.i./ ha pymetrozine 50WG @ 187.5 gave significantly results (7.57 7.82/ hill, respectively).However, highest grain straw yield (40.87 64.33 q/ ha) observed with 50WG@ 218.7 (40.41 64.22 ha). Rega...