25
Jun
(Beyond Pesticides, June 25, 2026) In a study comparing pesticide active ingredients (isolated single chemicals) with full pesticide product formulations containing added ingredients (the packaged products that can contain carriers, sticking agents, emulsifiers, etc.), researchers find the full formulation to be generally more toxic. The research evaluates acute and chronic exposures of four mosquito adulticide active ingredients (AIs), three product formulations, and one biological larvicide pesticide formulation containing Bacillus thuringiensis israelensis (Bti) on honey bee larvae in vitro and finds that three of the four exceed levels of concern (LOCs) set by the U.S. Environmental Protection Agency (EPA). EPA publishes Guidance for Assessing Pesticide Risks to Bees in which it identifies levels of harm. The scientists who conducted the study, published in Environmental Challenges, are based at the University of Florida and Auburn University. This study references Bti (Vectobac12AS) as the least toxic product, since the acute LD50 (lethal dose that kills 50% of the test population) is well below EPA-set LOCs. However, the study only focused on whether Bti harms honey bees. In contrast, there are some indications of its potential adverse effects on other beneficial insects, moths, and butterflies (see fact sheet here) and aquatic life, including studies […]
Posted in bacillus thuringiensis, Biodiversity, Chlorpyrifos, Mosquitoes, Naled, Phenothrin, Pollinators, Prallethrin, spinosad, Uncategorized | No Comments »
17
May
(Beyond Pesticides, May 17, 2023) British biotechnology company Oxitec is withdrawing its application to release billions of genetically engineered mosquitoes in California, according to a recent update from the California Department of Pesticide Regulation. The withdrawal is a victory for environmental and health campaigners concerned about the release of a novel mosquito that the U.S. Environmental Protection Agency (EPA) had previously authorized under an “experimental use†permit. “Genetically engineered mosquitoes are an environmental justice issue for Tulare County residents who should not be human experiments,†said Angel Garcia, codirector of the statewide coalition Californians for Pesticide Reform and Tulare County resident in a press release. “We are already impacted by some of the worst pollution problems in the state and deserve prior informed consent to being part of an open-air biopesticide experiment. Ahead of any future proposal for genetically engineered insects, DPR needs to have robust regulations in place that protect community members, and meaningful, inclusive public participation in any decision making.†   Oxitec began releasing its GE mosquitoes over a decade ago, first introducing the insects in the Brazilian town of Itaberaba. The company has made efforts to launch its mosquitoes in the United States, likely as a way […]
Posted in bacillus thuringiensis, Environmental Protection Agency (EPA), Florida, Food and Drug Administration (FDA), Genetic Engineering, International, Mosquitoes, Uncategorized | 1 Comment »
05
Oct
(Beyond Pesticides, October 5, 2020)  Another example of trading health and environmental protection for the support of special interests, EPA announces the misleading and fraudulently named, “EPA Supports Technology to Benefit America’s Farmers.†This time, EPA announces plans to “streamline the regulation of certain plant-incorporated protectants (PIPs).†Named to sow confusion, PIPs are plants engineered with pesticides in them. PIPs are known in general for two problems arising from incorporating pesticidal ingredients into crops: residues that cannot be washed off and production of crop-eating insects that are resistant to the incorporated pesticide that blankets the agricultural landscape. Tell Congress that EPA needs to listen to science, not pesticide manufacturers and biotech companies that are causing problems for farmers and the environment. This time, EPA is proposing to exempt from regulation certain PIPs created by biotechnological techniques that are cisgenic (using genes derived from sexually compatible species), such as CRISPR. The distinction that EPA seeks to make between cisgenic plants and transgenic plants (in which the gene of interest may come from any species) is not supported by science. In fact, cisgenic techniques make use of genetic material other than the targeted genes, and that may come from species that are not […]
Posted in Agriculture, bacillus thuringiensis, Chemicals, Environmental Protection Agency (EPA), Genetic Engineering, Plant Incorporated Protectants, Resistance, Uncategorized | No Comments »
