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Below you'll find a list of all posts that have been categorized as “Pesticides”
By Mongi Zekri Editor’s note: This article grants one continuing education unit (CEU) in the Core category toward the renewal of a Florida Department of Agriculture and Consumer Services restricted-use pesticide license when the accompanying test is submitted and approved. The fate processes for pesticides fall into three major types: adsorption, transfer and degradation. PESTICIDE ADSORPTION The adsorption process binds …
The Environmental Protection Agency’s (EPA) draft insecticide strategy to reduce the impact of conventional agricultural insecticides on endangered and threatened species could significantly impact specialty crop growers, according to the Minor Crop Farmer Alliance (MCFA). Those adverse impacts could be the result of imposing additional restrictions, potentially leading to economic consequences and challenges in pest management, the alliance wrote in …
The U.S. Environmental Protection Agency (EPA) on Aug. 20 released its Final Herbicide Strategy to protect more than 900 federally endangered and threatened species from the potential impacts of herbicide. EPA will use the strategy to identify measures to reduce the amount of herbicide exposure to these species when it registers new herbicides and when it reevaluates registered herbicides. For …
In Brazil, a more effective and sustainable insecticide for HLB-spreading psyllids was developed by Embrapa (Brazilian Agricultural Research Company) in partnership with the Institute of Chemistry of the State University of Campinas (Unicamp). The work resulted in a controlled-release system of the insecticide thiamethoxam molecule. Encapsulation was performed in polymeric nanoparticles, structures more than 80,000 times smaller than the thickness …
The U.S. Environmental Protection Agency (EPA) is putting pesticide spray drift protections in place 15 years sooner in the review process for new pesticides than has historically occurred. The protections are for farmworkers, their families and the general public near where pesticides are applied. The earlier protections for spray drift were announced July 15. EPA will now assess the potential …
The Georgia Department of Agriculture (GDA) has announced its collaboration with FieldWatch, a non-profit organization dedicated to enhancing communication and stewardship among beekeepers, crop producers and pesticide applicators. This partnership will enable Georgia’s beekeepers and crop producers to use FieldWatch’s technology, providing a secure online registry to map apiaries and crop fields. That will ensure safer pesticide application practices. “The state …
By Brett Bultemeier and Lauren Diepenbrock The status and availability of chlorpyrifos has had numerous, and at times, confusing changes due to new rules, court rulings and Environmental Protection Agency (EPA) decisions. The point of this article is to clearly define if chlorpyrifos can be used and until what date. As always, changes are possible in the future and users …
The U.S. Environmental Protection Agency (EPA) on March 3 provided an update on streptomycin uses on citrus. The update followed the U.S. Ninth Circuit Court of Appeals’ December 2023 decision that vacated the 2021 registration amendments for streptomycin because of the agency’s failure to comply with the Endangered Species Act. The 2021 amendments added a time-limited use on citrus crop …
By Brett Bultemeier, Mike Aerts and Lauren Diepenbrock On Dec. 28, 2023, the U.S. Court of Appeals for the Eighth Circuit revoked a previous decision related to chlorpyrifos tolerances for food. Chlorpyrifos is a broad-spectrum insecticide used in a variety of crops, including citrus. The original decision revoked all food tolerances, whereas this new ruling essentially reinstates them. This means …
The California Department of Pesticide Regulation (CDPR) has adopted new regulations to protect pollinators from the hazards associated with exposure to neonicotinoid pesticides containing the active ingredients clothianidin, dinotefuran, imidacloprid and thiamethoxam. The regulations affect the application of these pesticides on certain food and feed crops, including citrus. Product labels will not be updated with these requirements. CDPR suggests that …
The U.S. Ninth Circuit Court of Appeals on Dec. 13 reversed the U.S. Environmental Protection Agency’s (EPA) approval of the antibiotic streptomycin as a pesticide on citrus crops. See the ruling here. The court determined the EPA’s 2021 decision to allow spraying of streptomycin on citrus crops across the country to be unlawful under the Federal Insecticide, Fungicide, and Rodenticide Act …
By Lourdes Pérez Cordero Insects in general are often thought of as pests. Although some organisms of the class Insecta can become harmful to important agricultural crops, not all insects should inherently be considered pests. A pest can be any organism that competes, injures, or spreads diseases to humans, domestic animals and desired plants. Historically, humans have utilized chemical mixtures …
The federal Eighth Circuit Court of Appeals on Nov. 2 ruled the Environmental Protection Agency (EPA) failed to follow the law when it revoked chlorpyrifos tolerances — effectively banning the pesticide. “Its (EPA’s) decision was arbitrary and capricious … so we grant the petitions for review and vacate its order,” the court stated. See the court’s ruling here. The American …
Florida Fruit & Vegetable Association (FFVA) recently submitted comments to the U.S. Department of Agriculture’s Foreign Agricultural Service endorsing the European Union’s (EU) 10-year registration renewal efforts for glyphosate. In the letter, FFVA stressed that glyphosate herbicide has been used safely and successfully in Europe for more than 40 years. It noted that leading health regulators, including in Europe, the …
The resistance of HLB-spreading psyllids to some insecticides and the low effectiveness of insecticides applied via drench to control psyllids were recently addressed by Fundecitrus researchers. RESISTANCE OF PSYLLIDS Fundecitrus professionals participated in a meeting of the Brazilian Insecticide Resistance Action Committee. They were researcher Marcelo Miranda and agricultural engineer and postdoctoral fellow at Luiz de Queiroz College of Agriculture/University of …
Research by Rhodes University PhD graduates Tamryn Marsberg and Michael Jukes has led to the patent of two viral-based products. MultiMax and CodlMax are alternatives to chemical pesticides on citrus, apples and litchi. The advantage of these products includes their lack of non-target effects; the pest is controlled without harming the environment. The products could assist with control of the …
Research has confirmed the initial phase of resistance of the HLB-spreading psyllid to the active ingredient malathion in some microregions of the citrus belt of São Paulo and Triângulo/Southwest Mineiro. Malathion is from the organophosphate chemical group. The research was conducted by Fundecitrus in partnership with Luiz de Queiroz College of Agriculture/University of São Paulo (Esalq/USP). This is the third …
The Florida Fruit & Vegetable Association (FFVA) submitted comments to the U.S. Environmental Protection Agency (EPA) in support of the proposed federal registration of aldicarb on Florida oranges and grapefruit. “Prior to the business-strategy decision by the previous registrant to voluntarily remove aldicarb from the market in 2010, this insecticide was considered a cornerstone of immediate and long-term sustainable production …
By Danielle S. Williams Editor’s note: This article grants one continuing education unit (CEU) in the Core category toward the renewal of a Florida Department of Agriculture and Consumer Services restricted-use pesticide license when the accompanying test is submitted and approved. Pesticides are vital tools in agriculture that help protect crops from pests and diseases. Pesticide use must be managed …
Pesticide-maker AgLogic has asked the Environmental Protection Agency (EPA) to approve use of the pesticide aldicarb on Florida oranges and grapefruit, the Center for Biological Diversity reported. The center, which opposes the approval, says it is dedicated to the protection of endangered species and wild places. The EPA approved a similar aldicarb request in the waning days of the Trump …
