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Thiacloprid ban is latest in a long line of bad news for Bayer

Entire EU bans Bayer insecticide

In October of last year, a European Union commission recommended the EU not to renew authorization for the use of thiacloprid, an insecticide made by Bayer.

This week, the EU officially declined to renew approval, which is the way the EU bans things: They simply decline to make them legal to use. After April 30th of 2020, no farmer will be allowed to use thiacloprid in any of the 28 member nations that make up the EU.

Thiacloprid is a neonicotinoid pesticide, one of several different pesticides in that category. Neonicotinoid pesticides are roughly similar to nicotine, chemically, and work by triggering responses in the nervous systems of insects, usually killing them. It's sold under a few brand names, including Calypso, and is often sold as a coating on seeds, to protect against pests like aphids. According to the EPA, it's most commonly used in the United States on cotton and fruits like apples and pears.

But the EU, following a January 2019 study looking into the safety of thiacloprid, decided to completely prohibit its use. According to Reuters, the EU decided to ban the pesticide due to concerns over its role in bee deaths, water contamination, and human health. Various studies have found that thiacloprid may cause serious problems for honeybees; here's one that found that honeybee queens are severely immunocompromised after exposure.

According to, this is the latest in a string of neonicotinoid bans in Europe; in 2018. the EU banned three of the most popular neonicotinoids from use on field crops. And it's another blow to Bayer, which is attempting to defend itself from lawsuits aimed at Monsanto. Bayer fully acquired Monstanto in 2018. Monsanto's most important product, glyphosate, has been the subject of thousands of lawsuits alleging that the pesticide causes cancer.

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