08
Sep
(Beyond Pesticides, September 8, 2022) A study published in Environmental Pollution finds parental exposure to real-world, sublethal concentrations of pesticide residues on grains is a major contributor to unfavorable offspring development among foraging birds. Parents’ ingestion of grains with conventional pesticide residues, whether from contaminated or pesticide-treated seeds, results in chronic exposure that adversely affects offspring health, even at low doses. The adverse effects pesticides and other environmental pollutants have on birds are amply documented and researched. Although many studies evaluate acute or chronic health implications associated with pesticide exposure in a single generation, there is a lack of information on multi-generational impacts that can provide vital information on the fundamental survivability or fitness of bird species. Considering this study emphasizes parental exposure to environmental pollutants can have adverse consequences for future generations, it is necessary that future risk assessments for birds address these implications when implementing agricultural pesticide policies. The study notes, “[S]ublethal effects of such compounds [pesticides] on non-target species should be included in the regulation. Moreover, as agroecosystem pollution is not resulting only from pesticides, there is an urgent need to analyze cocktail effects, not only between molecules of pesticides but also between pesticides and other pollutants such as […]
Posted in Birds, Birth defects, Epigenetic, multi-generational effects, Pesticide Residues, Seeds, Wildlife/Endangered Sp. | 1 Comment »
15
Jul
(Beyond Pesticides, July 15, 2021) A study by ETH Zurich finds multi-crop (mixed culture) farmlands, which include a diverse array of crops, produce higher biomass and seed yields than single-crop (monocultures). Monocultures are most prevalent among arable farmland as commercial industrial farming uses this practice to increase sowing, managing, and harvesting efficiency for higher yields. However, less crop diversity leads to higher, more intensive pesticide use as pests favor the consistent food availability monocultures provide. An increase in toxic chemical use threatens human, animal, and environmental health, as well as food security. Ecological research already finds a positive association between plant diversity and biomass productivity in grasslands and meadows. In addition, a University of California, Santa Barbara study demonstrates that crop diversity in commercial agriculture is just as essential to supporting a stable biological system as plant diversity on non-commercial landscapes (i.e., grasslands/meadows). Therefore, this research highlights the need to develop policies that help farmers and global leaders make more knowledgeable decisions regarding crop diversity to sustain yield without toxic pesticides. The researchers note, “While crop diversification provides a sustainable measure of agricultural intensification, the use of currently available cultivars [(plant varieties for selective breeding)] may compromise larger gains in seed yield. We, therefore, advocate regional […]
Posted in Agriculture, Alternatives/Organics, Biodiversity, Seeds | No Comments »
16
Apr
(Beyond Pesticides, April 16, 2020) Pesticide exposure in farmland birds is a concomitant of pesticide-treated muesli (cereal) seed commonly planted during winter months, according to research published in Science of the Total Environment by United Kingdom (UK) scientists. Not only do pesticide-treated seeds pose the highest dietary risk to birds, but pesticide-treated seeds also go underreported as farmers often lack knowledge of what pesticides are on the seeds they plant. This study emphasizes the global effects of treated seeds, and their corresponding pesticide exposure, on bird species. Future risk assessments for bird should address these implications when implementing agricultural pesticide policies. Farmers use of treated seeds exposes farmland birds to pesticides like neonicotinoids (neonics), including clothianidin (CLO). Pesticide residues then accumulate in the birds’ blood. UK scientists examined pesticides in farmland bird blood samples to connect the field-based use of treated seeds to clothianidin exposure patterns. At the time of this study, CLO was the most widely used pesticide on treated winter cereal seeds in the UK. Scientists recorded the presence of neonicotinoid-treated seed in 39 fields of 25 farms after seeding. Camera traps monitored farmland birds’ seed consumption. To measure CLO concentration in treated seed and seedling, scientists used liquid chromatography-tandem mass spectrometry to identify inorganic, organic, […]
Posted in Agriculture, Alternatives/Organics, Birds, Clothianidin, Disease/Health Effects, Increased Vulnerability to Diseases from Chemical Exposure, Lawns/Landscapes, neonicotinoids, Pollinators, Regenerative, Seeds, Uncategorized, Wildlife/Endangered Sp. | No Comments »
31
Mar
(Beyond Pesticides, March 31, 2020) Adding to the widespread and problematic use of neonicotinoid pesticides as seed treatments, a recent study published in BioScience finds that there are significant knowledge gaps among some farmers about the seeds they are planting. The research indicates that those gaps contribute to underreporting of accurate data on the use of pesticide-coated (often with neonicotinoid pesticides) seeds — because farmers may not know what pesticides are on the seeds they plant. Pennsylvania State University reports on the study, in Phys.org, saying, “This lack of data may complicate efforts to evaluate the value of different pest management strategies, while also protecting human health and the environment.” Beyond Pesticides advocates for widespread adoption of organic, regenerative systems and practices that precludes the use of such pesticides. The research was conducted by a team of scientist from around the U.S., led by Claudia Hitaj, PhD, of the Luxembourg Institute of Science and Technology, and former economist at USDA’s Economic Research Service. In the Phys.org coverage of the study, assistant professor of epidemiology and crop pathology at Penn State, Paul Esker, PhD, notes that this lack of farmer knowledge can lead to overuse of pesticides, which would increase the already considerable risks […]
Posted in Agriculture, neonicotinoids, Pollinators, Seeds, Uncategorized | No Comments »
