Results 61 to 70 of about 94 (89)
Some of the next articles are maybe not open access.
The discovery of dinotefuran: a novel neonicotinoid
Pest Management Science, 2003AbstractDinotefuran (MTI‐446: (RS)‐1‐methyl‐2‐nitro‐3‐(tetrahydro‐3‐furylmethyl)guanidine) is a new neonicotinoid commercialized by Mitsui Chemicals. Research led to this novel neonicotinoid by the removal of the chloropyridine or chlorothiazole ring that had been considered as indispensable for neonicotinoides.
Takeo, Wakita +9 more
openaire +2 more sources
To bee or not to beet with neonicotinoids
Environmental Law Review, 2021In January 2021 the UK government granted an application for authorisation to use thiamethoxam, a neonicotinoid pesticide, to protect commercial sugar beet crops from attack by viruses transmitted by aphids. This was the first time such an authorisation had been granted in the United Kingdom (UK) and there were concerns that it signalled a weakening of
openaire +1 more source
The trouble with neonicotinoids
Science, 2014Chronic exposure to widely used insecticides kills bees and many other ...
openaire +1 more source
Ecotoxicity of Neonicotinoid Insecticides to Bees
2010This chapter reviews the available data on the toxicity of neonicotinoid insecticides to bees that are the prominent and the most economically important group of pollinators worldwide. Classical and new methods developed to take into account the characteristics and different types of effects of the neonicotinoid insecticides to bees are described.
Axel, Decourtye, James, Devillers
openaire +2 more sources
The Neonicotinoid Insecticides
2002The neonicotinoid insecticides are a new generation of chemical agents that have recently been developed for commercial use. Their history can be traced to the late 1970s, when chemists at Shell Chemical Company investigated the heterocyclic nitromethylenes as potential insecticides (1,2).
openaire +1 more source
Neonicotinoids and Nitrogenous Insecticides
1998Nicotine has never achieved the prominence that the synthetic insecticides have attained due to its expensiveness, lack of commercially applicable synthesis, extreme toxicity to mammals, and limited insecticidal spectrum. The mode of insecticidal action of nicotine was clarified by Yamamoto (Yamamoto et al.
A. S. Perry +3 more
openaire +1 more source
Die Neonicotinoide. Nicotin und die Neonicotinoide – Teil 2
Chemie in unserer Zeit, 2008AbstractDie cholinerge Synapse ist ein attraktives Angriffsziel einer Fülle hochselektiver Insektizide. Nicotin und die Neonicotinoide wirken an dem postsynaptischen nicotinergen Acetylcholin‐Rezeptor. Die Neonicotinoide sind nicht das Ergebnis einer stringenten Weiterentwicklung der Naturstoffe Nicotin und Epibatidin, sondern leiten sich von den ...
openaire +1 more source
Nicotine and the Neonicotinoids
2012The toxicology of nicotine and the neonicotinoid insecticides is discussed, with an emphasis on imidacloprid as it is the most studied neonicotinoid among the seven established members of the class. Neonicotinoids are more effective and safer insecticides than nicotine because of their selective toxicity to insects.
openaire +1 more source
Neonicotinoids Disrupt Pollination
Chemical & Engineering News Archive, 2015Neonicotinoid pesticides have been blamed for declines in bee populations worldwide. The chemicals don’t kill bees, instead neonicotinoids impair the insects’ abilities to learn, navigate, forage for nectar, and reproduce, according to studies published over the past several years. Now, researchers report that bees exposed to the pesticides also become
openaire +1 more source
2010
The use ofneonicotinoid insecticides has grown considerably since their introduction in 1990s. They are used extensively for the control of agriculturally important crop pests and also in the control of cat and dog fleas. Imidacloprid exploited through an elaborated structural and substituent optimization of nithiazine was launched to market in 1990 ...
openaire +4 more sources
The use ofneonicotinoid insecticides has grown considerably since their introduction in 1990s. They are used extensively for the control of agriculturally important crop pests and also in the control of cat and dog fleas. Imidacloprid exploited through an elaborated structural and substituent optimization of nithiazine was launched to market in 1990 ...
openaire +4 more sources