The use of biopesticides against agricultural pests is great importance for the sustainability pest management. goal present study was to determine lethal (acute) and sublethal (first male young queen emerge time, competition point, total number workers, males queens) effects four commercial [Nibortem (1.5% Lecanicillium (Verticillium) lecanii strain V1-1, Nostalgist Beauveria bassiana Bb-1), P...

Entomopathogenic nematodes (EPNs) are lethal pathogens of agricultural insect pests. Little is known about their sublethal effects on the insect hosts. The lethal effects of Steinernema carpocapsae on fourth instar larvae of Colorado potato beetle (CPB), Leptinotarsa decemlineata were detected using soil infection and direct injection of the nematode into the hemocel. LC20 and LC80 values of 7....

The aim of this study was to investigate the lethal and sublethal toxicity of a methomyl-based insecticide in Hoplobatrachus rugulosus, as methomyl-based insecticides are applied in massive amounts and agrochemicals have effects on the decline in amphibian populations. To evaluate the toxic effects of methomyl from agricultural application, a methomyl-based insecticide containing 40% methomyl w...

1. Visible light of high intensity does not injure paramecia or sensitize them to heat. 2. If photodynamic dyes are added, paramecia are readily killed by visible light of high intensity and are sensitized to heat by sublethal dosages of light. 3. Cells so sensitized are killed when subjected to a sublethal exposure to heat. 4. If the light and heat are applied in the reverse order, namely, hea...

Glyphosate is a widely used agrochemical. Nevertheless, only few studies have investigated its effect on bees, specifically influence their foraging activity. This article provides summary of the prominent research results this issue, published in journals field experimental biology. The commonly concentrations glyphosate honey bee navigation has been evaluated several studies, as well that are...