Recently, high resistance to pyrethroid insecticides has been associated with ineffective field treatments against Triatoma infestans (Klug) (Hemiptera: Reduviidae) in northern Argentina. Samples were collected from two areas in Argentina (Salta and La Rioja) and one are in Bolivia (Yacuiba), and they were subjected to toxicological and biochemical assays. All populations were resistant to delt...

A Fe-TAML/H2O2 catalytic oxidation process achieves facile in-solution total degradation of fenitrothion and two other organophosphorus (OP) pesticides. Degradation products have been identified and quantified providing evidence for oxidative hydrolysis, oxidative desulfuration, perhydrolysis, and deep oxidation. Degradation pathways can be selected by pH control to completely obviate all toxic...

The desert locust upsurge in the Horn of Africa over 2019–2021 led to a total 1.6 million ha being treated with broad-spectrum organophosphate and pyrethroid insecticides Ethiopia Kenya, while insect growth regulators entomopathogenic fungus Metarhizium acridum were applied Somalia. Environmental monitoring was largely absent, limited surveys conducted Kenya Ethiopia. Overdosing fenitrothion 96...

Evaluation of insecticidal activity of flea products is generally based on counting live fleas in the animal's coat 24 and 48 hours following artificial infestation. This approach, however, does not allow to specify whether the fleas have had the opportunity to bite and take a bloodmeal prior to their death. To address this question, 30 cats were alloted to six groups of five animals. Each cat ...

Leaves of tomato cultivars that contain the Pto bacterial resistance locus develop small necrotic lesions within 24 hr after exposure to fenthion, an organophosphorous insecticide. Recently, the Pto gene was isolated and shown to be a putative serine/threonine protein kinase. Pto is one member of a multigene family that is clustered within a 400-kb region on chromosome 5. Here, we report that a...