22
Oct
(Beyond Pesticides, October 22, 2024) A recent study, published through the American Chemical Society, analyzes pesticide contamination in riparian soil and plants as a result of flooding from streams in Germany. The authors hypothesize, and then prove, that frequently flooded sites have higher levels of pesticides present due to the pesticides in surface waters contaminating the soil. Results show that the plant vegetation in the contaminated soil then takes up the pesticides, which bioaccumulate and lead to higher contamination that can further cascade throughout the ecosystem and affect terrestrial food webs. “[O]ur study provides evidence from the field that nontarget plant species typical for riparian stream sites receive considerable pesticide exposure via flooding events,” the authors share. This exposure, and subsequent bioaccumulation in plants, threatens the food web, as many riparian plants are a vital food source for insects. According to the authors, flooding events, and their impact on pesticide contamination within soil and plants, are rarely investigated. This study, “measur[ing] 98 pesticides and metabolites in plants and root-zone soils sampled at five streams situated in an area in Southwest Germany characterized by intensive agricultural land use,” highlights the differences in contamination between frequently flooded and rarely flooded areas and […]
Posted in Azoxystrobin, Biodiversity, boscalid, Climate Change, Pendimethalin, Pollinators, soil health, Soil microbiome, United Nations, Water, Wildlife/Endangered Sp. | No Comments »
01
Mar
(Beyond Pesticides, March 1, 2023) Fungicides sprayed on chemically farmed strawberries reduce their flavor quality, according to research published in the Journal of Agricultural and Food Chemistry this week. This explanation is a major insight for frustrated consumers who may remember when the strawberries sold at retail contained deeper, more complex flavors. As the agrichemical industry claims that dangerous pesticides are needed to grow food to feed the world, it is evident these practices health and environmental hazards, but also affect the quality of the food grown. As savvy shoppers and gardeners already know, buying and growing organic addresses this range of issues, improving flavor while protecting wildlife and public health. Scientists developed their study to better understand the mechanisms leading to flavor deterioration by growing strawberry plants in a greenhouse with chemical-intensive practices, including the use of synthetic fertilizers. One group was treated with the fungicide boscalid, another with the fungicide difenconazole, and a control group received no spray. Fruits were sprayed beginning at the green, small fruit stage, a total of two times, and collections from each group were taken at the white, turning, and red fruit stage (zero, three, and seven days after the second pesticide application). […]
Posted in Agriculture, Alternatives/Organics, boscalid, difenoconazole, Fungicides, Uncategorized | No Comments »
