The use of the Agilent 6540 Q-TOF LC/MS system and Agilent MassHunter software tools have enabled the identification of six new metabolites of imidacloprid by MS/MS analysis. These metabolites and their structures were deduced from MS/MS studies with accurate mass, making it possible to better understand imidacloprid metabolism in onion as well as new metabolite targets for toxicity studies.

The insecticide imidacloprid is mainly applied as a seed dressing formulation. After root uptake, imidacloprid is translocated acropetally within the xylem and degraded quickly in the plants. Three principal metabolic pathways have been identified in various plant metabolism studies with different crops and types of application showing a nearly uniform quantitative and qualitative pattern in al...

Randomly selected 320 fingerling of Labeo rohita were collected from Faheem fish farm, Mattital Road, Multan. Groups of 40 fish each were exposed to subleathal concentration of imidacloprid (120 mg L-1) under short (2, 4 and 8 days) and long term (16, 32 and 64 days) conditions to access the effect of this most extensively used pesticide on the body composition parameters of economically most i...

Abstract Experiments were performed investigating citronella (Cymbopogon winterianus Jowitt) as a repellent to honeybee Apis mellifera (L.) (Hymenoptera: Apidae) in Egypt, it was conducted laboratory the Department of Entomology and Pesticides Science, Faculty Agriculture, Cairo University, check long-term survival when exposed different nano insecticides alone or combined with at same examinat...

Here we present results of a three-year study to determine the fate of imidacloprid residues in hive matrices and to assess chronic sublethal effects on whole honey bee colonies fed supplemental pollen diet containing imidacloprid at 5, 20 and 100 μg/kg over multiple brood cycles. Various endpoints of colony performance and foraging behavior were measured during and after exposure, including wi...

The large-scale use of neonicotinoid insecticides has raised growing concerns about their potential adverse effects on farmland birds, and more generally on biodiversity. Imidacloprid, the first neonicotinoid commercialized, has been identified as posing a risk for seed-eating birds when it is used as seed treatment of some crops since the consumption of a few dressed seeds could cause mortalit...

This study was aimed to assess the adsorption and leaching potential of imidacloprid pesticide in column and field soil. To understand mechanism of adsorption and factors affecting, the experiments were carried out under laboratory and field conditions. Adsorption study was divided into kinetic and equilibrium sections. The evaluation of kinetic data was done through pseudo first and second ord...

the effect of the fungus, metarhizium anisopliae, sub-lethal dose of imidacloprid, the aphid, myzus persicae and the three canola cultivars under microcosm conditions inside plastic cages in greenhouse (27 ± 3°c, rh 90 ± 5 %) indicated that field and semi-field concentrations of the fungus significantly reduced the population of green peach aphid (gpa) as well as in combination with lc10 of imi...

The head louse, Pediculus capitis De Geer (Phthiraptera: Pediculidae) has developed resistance to organochlorines, the organophosphate malathion and to pyrethroids in the U.K. Therefore, headlice from Bristol school children were bioassayed against two new insecticides, fipronil and imidacloprid. Pediculus capitis was fully susceptible to imidacloprid, but it required a relatively high dose and...

The Hessian fly (Mayetiola destructor Say) is a gall midge that infests and feeds upon wheat (Triticum aestivum L.). Recently, new form of tolerance (QHft.nc-7D) was identified in the breeding line LA03136E71 (PI 700336). Partial resistance allows immature to thrive small numbers does not function like antibiosis. Little known about potential yield drag using partial resistance. In this study, ...