Henk Tennekes
5057 resultaten
The risk of neonicotinoid insecticides to honey bees increases exponentially over time
6 januari 2012A very important shift may be occurring in our understanding of pesticides: risk may increase over time, rendering even very…Bijen
De maisteelt kan paardenbloemen met neonicotinoiden belasten en zo een bijenvolk langdurig blootstellen aan landbouwgif
5 januari 2012De paardenbloem (Taraxacum officinale) is voor vele soorten insecten van belang, waaronder onze honingbij. De plant wordt zeer goed bevlogen…Bijen
Honey Bees Living Near Maize Fields Are Exposed To Neonicotinoids Throughout The Growing Season
5 januari 2012We used LC/MS-MS to analyze samples of honey bees, pollen stored in the hive and several potential exposure routes associated…Bijen
Geen geld voor ernstig bedreigde soorten
30 december 2011Een amendement van mevrouw Wiegman van de ChristenUnie (CU), ingediend tijdens de begrotingsbehandeling Natuur, waarin het kabinet werd gevraagd om…Vlinders
The long-term declines of invertebrates and birds on farmland
27 december 2011Invertebrates are an essential food source for most farmland birds. Dvac suction sampling was used to determine the abundance, biomass…Akkervogels
Pesticides have major indirect effects on birds
27 december 2011Pesticides have major indirect effects on birds via the killing of both invertebrates important for food and also agricultural weeds…Akkervogels
Bat populations are rapidly declining in North America
26 december 2011Bats are an amazingly diverse group of flying mammals that can be found in virtually every corner of the world.…Vleermuizen
Decline of malaria mosquito vectors in sub-Saharan Africa since 1998 despite the absence of organized vector control
26 december 2011In sub-Saharan Africa (SSA), malaria caused by Plasmodium falciparum has historically been a major contributor to morbidity and mortality. Recent…Overige insecten
Between 1988 and 2008, the status of 225 bird species was elevated to a higher level of risk
25 december 2011Birds are widespread, readily observed, feed at many levels of the food web, and are responsive to environmental change, making…Algemeen
122 Indonesian bird species included on the IUCN red list could go extinct
25 december 2011Conservation association Burung Indonesia reports that 122 Indonesian bird species included on the International Union for Conservation of Nature (IUCN)…Algemeen
Het daadwerkelijke risico van neonicotinoide insecticiden wordt schromelijk onderschat
25 december 2011De traditionele benadering van giftigheid is het testen in model organismen van dosis (concentratie) - effect verhoudingen bij een willekeurig…Bijen
Hoe langdurige blootstelling aan imidacloprid kan leiden tot de ondergang van bijenvolken
25 december 2011Imidacloprid is het eerste zeer efficiënte insecticide waarvan het werkingsmechanisme berust op bijna volledige en vrijwel onomkeerbare blokkade van de…Bijen
Über 100 heimische Vogelarten gefährdet
25 december 2011Der Vogelschutz in Deutschland verzeichnet weitere Rückschläge. „Wenn heute fast jede achte heimische Vogelart aus Deutschland zu verschwinden droht, dann…Algemeen
Die Anwendung von Pestiziden in Landwirtschaftsflächen reduzierte Rebhuhn-Lebensraum und -Nahrung
25 december 2011Die Arten der Agrarlandschaft erleiden in den letzten Jahrzehnten erhebliche Bestandseinbrüche. Für die Hälfte der Pflanzenarten, ein Drittel der Insektenarten…Akkervogels
Continuous exposure of bees and brood to imidacloprid may ultimately cause colony collapse
24 december 2011Imidacloprid is the first highly effective insecticide whose mode of action has been found to derive from almost complete and…Bijen
Europese milieuministers gezwicht voor landbouwlobby
23 december 2011WWF-België, Natuurpunt en Natagora zijn zwaar teleurgesteld in de resultaten van de Europese Raad die gisteren plaats had: de belangen…
Methods to eradicate wood-boring insects usually involve application of imidacloprid through direct trunk injection, soil injection. or soil drench
21 december 2011Between 1985 and 2005, at least 25 exotic species of wood borers were found to have become established in the…Bosvogels
Imidacloprid is used in the United States to eradicate the Asian longhorned beetle
21 december 2011The Asian longhorned beetle’s (ALB) recent introduction to the United States is a serious threat to hardwood trees. This beetle…Bosvogels
Controlling the pine weevil, the most important pest of replanted coniferous sites in Europe
21 december 2011The large pine weevil, Hylobius abietis, is the most important pest of replanted coniferous sites in Ireland and throughout northern…Bosvogels
Imidacloprid is highly effective against the red palm weevil, the major pest of palms in the Mediterranean Basin
21 december 2011The invasive red palm weevil, Rhynchophorus ferrugineus (Olivier), has become the major pest of palms in the Mediterranean Basin. Chemical…Bosvogels
Systemic Insecticides Recommended to Control Regeneration Pests of Loblolly Pine in the United States
20 december 2011Loblolly pine (Pinus taeda L.) covers 16 million ha of forestland in the southeastern United States, more than half of…Bosvogels
With global value of $980 million in 2008, imidacloprid provides insect control for crops and noncrops
20 december 2011Imidacloprid, developed by Bayer CropScience in 1985, is an insecticide, a seed treatment insecticide and seed treatment insecticide/fungicide combination. Bayer…Algemeen
Current toxicological risk assessment can lead to serious underestimates of actual risk – neonicotinoids are a case in point
19 december 2011The traditional approach to toxicity testing is to consider dose (concentration)-effect relationships at arbitrarily fixed exposure durations which are supposed…Algemeen
Imidacloprid is widely used as home garden insecticide to control many of the common pests associated with flowers
19 december 2011Home gardeners are confronted with many potential insect problems. The types of problems will depend on their location, the health…Overige insecten
