The toxicities of established and new members of the neonicotinoid insecticide class were assessed against the glassy-winged sharpshooter in topical application bioassays. All compounds were highly toxic to the insect. Clothianidin elicited its toxic response more rapidly than thiamethoxam and was 3-fold more toxic overall at the LD50 level. Clothianidin has been proposed as an active derivativ...

Neonicotinoid insecticides are of environmental concern, but little is known about their occurrence in surface water. An area of intense corn and soybean production in the Midwestern United States was chosen to study this issue because of the high agricultural use of neonicotinoids via both seed treatments and other forms of application. Water samples were collected from nine stream sites durin...

Adults of Sitona lineatus (pea leaf weevil, PLW) feed on foliage of several Fabaceae species but larvae prefer to feed on nodules of Pisum sativum L. and Vicia faba L. Indirectly, through their feeding on rhizobia, weevils can reduce soil and plant available nitrogen (N). However, initial soil N can reduce nodulation and damage by the weevil and reduce control requirements. Understanding these ...

Using Caenorhabditis elegans as an animal model, the possible toxic effects of six insecticides (dinotefuran, thiamethoxam, thiacloprid, nitenpyram, acetamiprid, and sulfoxaflor) commonly used in agriculture on sensory perception were examined. The behaviors thermotaxis, avoidance copper ion, chemotaxis to NaCl, diacetyl measured investigate damage perceptions nematodes exposed examined range m...

Neonicotinoid insecticides have become of global concern for the aquatic environment. Harpacticoid copepods are among organisms most sensitive to neonicotinoids. We exposed brackish copepod Nitocra spinipes 4 neonicotinoid (clothianidin, imidacloprid, thiacloprid, and thiamethoxam) investigate acute toxicity on adults (96-h exposure) effects larval development (7-d exposure). used these results...

ABSTRACT The adoption of technologies that allow the mitigation environmental stresses, such as use regulators in seed treatment, is an alternative for crops high temperatures regions. This study aimed to assess heat stress on germination and initial development carrot seedlings using plant growth regulators. was divided into three experiments performed at 25, 30 35 °C. A 5 × 3 factorial arrang...

Nesidiocoris tenuis (Reuter, 1895) (Hemiptera: Miridae) is the most widely used biological control agent of tomato pests, particularly leafminer. Five treatments, spinetoram, chlorantraniliprole + abamectin, thiamethoxam, emamectin benzoate and dimethoate were tested on N. under greenhouse conditions in summer autumn 2018 Malatya Province, Turkey. After insecticide application, counted days 1, ...