Environmental impacts of neonicotinoids outweigh crop yield benefits

Neonicotinoid use has increased rapidly in recent years, with a global shift toward insecticide applications as seed coatings rather than aerial spraying. While the use of seed coatings can lessen the amount of overspray and drift, the near universal and prophylactic use of neonicotinoid seed coatings on major agricultural crops has led to widespread detections in the environment (pollen, soil, water, honey).

Insecticide Resistance Signals Negative Consequences of Widespread Neonicotinoid Use on Multiple Field Crops in the U.S. Cotton Belt

Over the past 15 years, neonicotinoid seed treatments have been adopted worldwide and are used on a large proportion of U.S. field crops. Although neonicotinoids are used widely, little is known about how large-scale deployment affects pest populations over long periods. Here, we report a positive relationship between the deployment of neonicotinoid seed-dressings on multiple crops and the emergence of insecticide resistance in tobacco thrips (Frankliniella fusca), a polyphagous insect herbivore that is an important pest of seedling cotton but not soybean or maize.

Das Verschwinden der Grasfrösche

Der zu den Braunfröschen gehörende Grasfrosch (Rana temporaria) galt früher als „Allerweltsart“. Bis ins 20. Jahrhundert hinein landete er bevorzugt in der Fastenzeit hin- und wieder auf heimischen Tellern. Er ist fast überall in Deutschland anzutreffen. Dennoch sind auch bei dieser häufig vorkommenden Amphibienart in den letzten Jahren sehr starke Bestandsrückgänge festzustellen. In bestimmten Regionen ist er bereits ganz verschwunden, sodass er in Rheinland-Pfalz auf der Vorwarnliste der gefährdeten Arten aufgeführt ist. Die Tiere ernähren sich von Insekten, Würmern, Nacktschnecken etc.

Protecting our butterflies is vital to the environment

The State of the Nations Butterfly report which is published every five years shows long term and ten year trends – and it’s waving a danger flag. The most recent report published in 2015 indicates that overall a staggering 76 percent of our butterflies declined in abundance and occurrence over the past 40 years.

Four species of butterfly have become extinct over the past 150 years and the rest face an uncertain future. Our moths are doing no better as the total number over the past 40 years has declined overall by 28 percent, even as low as 40 percent in southern areas.

Tropical aquatic ecosystems are much more sensitive to imidacloprid

The neonicotinoid insecticide imidacloprid is used in Bangladesh for a variety of crop protection purposes. Imidacloprid may contaminate aquatic ecosystems via spray drift, surface runoff and ground water leaching. The present study aimed at assessing the fate and effects of imidacloprid on structural (phytoplankton, zooplankton, macroinvertebrates and periphyton) and functional (organic matter decomposition) endpoints of freshwater, sub-tropical ecosystems in Bangladesh.

Neonicotinoïden mogelijk alleen nog onder glas

Landbouwminister Carola Schouten gaat ervan uit dat de Europese Commissie het gebruik van neonicotinoïden gaat beperken tot alleen de toepassingen onder glas. De bewindsvrouw schrijft dit deze week in een brief aan de Tweede Kamer. De verwachting is dat de Europese Commissie binnenkort met een definitief voorstel komt om het gebruik van neonicotinoïden verder aan banden te leggen. Eind maart brengen de EU-lidstaten mogelijk het voorstel van de EC in stemming.

Het Ctgb wil het neonicotinoïde insecticide dinotefuran toelaten voor de bestrijding van kakkerlakken

Het College voor de toelating van gewasbeschermingsmiddelen en biociden (Ctgb) besluit binnenkort over de toelating van onderstaande middelen op basis van een werkzame stof die niet eerder in Nederland is toegelaten. Voordat het college besluit tot toelating, liggen ontwerpbesluiten twee weken ter inzage. De terinzageleggingen worden 8 maart 2018 gemeld via; de inzagetermijn eindigt op 22 maart 2018. Een van de werkzame stoffen is het neonicotinoïde insecticide dinotefuran.

New research finds bee-killing pesticides may be impacting our health

Lots of recent research on neonicotinoid pesticides has focused on their deadly effects on honeybees and hives, but few have studied their possible effects on human health. Now, a Quebec research team has made some disturbing findings, including how the pest killers might affect unborn babies during pregnancy, and how they play a role in fuelling breast cancer.

Death of the bee hive: understanding the failure of an insect society

Since 2007 honey bee colony failure rates overwinter have averaged about 30% across much of North America. In addition, cases of extremely rapid colony failure have been reported, which has been termed colony collapse disorder. Both phenomena result from an increase in the frequency and intensity of chronic diseases and environmental stressors. Colonies are often challenged by multiple stressors, which can interact: for example, pesticides can enhance disease transmission in colonies.