Herbicides
Nancy Kavazanjian Nancy Kavazanjian
shared this article 4 years ago
Topics: Soybeans, Herbicides, Agriculture US,
TOPIC(S): Corn/Maize, Herbicides, Weeds, Education U.S. MidWest, Research,
TOPIC(S): Herbicides, Beekeeping, Research, Pollinators,

02/17/2021 SOURCE: www.mdpi.com

Evaluating the Impact of Post-Emergence Weed Control in Honeybee Colonies Located in Different Agricultural Surroundings

The honeybee Apis mellifera is exposed to agricultural intensification, which leads to an improved reliance upon pesticide use and the reduction of floral diversity. In the present study, we assess the changes in the colony activity and the expression profile of genes involved in xenobiotic detoxification in larvae and adult honeybees from three apiaries located in agricultural environments that differ in their proportion of the crop/wild flora. We evaluated these variables before and after the administration of a mixture of three herbicides during the summer season. The expression of several cytochrome P450 monooxygenases decreased significantly in larvae after post-emergence weed control and showed significant differences between apiaries in the case of honeybee workers. Principal component analysis (PCA) revealed that colonies located in the plot near to a wetland area exhibited a different relative gene expression profile after herbicide application compared with the other plots. Moreover, we found significant positive correlations between pollen collection and the pesticide detoxification genes that discriminated between plots in the PCA. Our results suggest that nutrition may modify herbicide impact on honeybees and that larvae are more harmed than adults in agroecosystems, a factor that will alter the colonies’ population growth at the end of the blooming period.

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TOPIC(S): Corn/Maize, Herbicides, Water, Environment, US EPA,
Randy Krotz Randy Krotz
shared this article 4 years ago
Topics: Herbicides, Fertilizer, US EPA,
TOPIC(S): Herbicides, Agriculture US, Pesticides, Organic,

01/05/2021 SOURCE: www.knkx.org

Popular Organic Farm Product 'Agro Gold WS' Banned In WA, OR, CA; Idaho Investigating

Alan Scheiber is one organic farmer who would have never applied so-called “Agro Gold WS” to about a dozen acres if he’d known it contained synthetic

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TOPIC(S): Herbicides, Agriculture US, Pesticides, Environment,

12/22/2020 SOURCE: beyondpesticides.org

Farmworkers and Conservationists Ask Court to Remove Monsanto's Roundup from the Market - Beyond Pesticides Daily News Blog

(Beyond Pesticides, December 22, 2020) Opening arguments and evidence were filed by a coalition of farmworkers, farmers, and conservationists last week in litigation challenging the U.S. Environmental Protection Agency’s (EPA) re-approval of glyphosate, best known as the active ingredient in Monsanto’s “Roundup” pesticides. The lawsuit charges that the Trump Administration unlawfully ignored cancer risks and ecological damage of glyphosate.  Represented by the Center for Food Safety (CFS), plaintiffs, including the Rural Coalition, Farmworker Association of Florida, Organización en California de Lideres Campesinas, and Beyond Pesticides, filed the federal lawsuit in the Ninth Circuit Court of Appeals in March. The groups seek to have the pesticide prohibited from use or sale because of its unlawful approval. “Farmworkers are on the frontlines of nearly every health and environmental crisis, from the COVID-19 pandemic to climate change, and are particularly at risk of health impacts from pesticide spraying,” said Amy van Saun, senior attorney at CFS. “EPA failed these essential workers. It rejected evidence that glyphosate causes cancer and entirely failed to assess the main way people are exposed at work, through their skin.” Today’s filing includes volumes of evidence showing how EPA ignored glyphosate’s health risks, including cancer risks, to farmworkers and farmers exposed during spraying. The evidence filed […]

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