On 9th April 2009, hundreds of cattle were poisoned when a crop spraying plane suffered a mechanical failure in its spray tank hoses, causing the contents of a 20 litre container of Bayer's Phaser 350EC endosulfan product to spill onto grazing land. The incident took place 100km east of Guichon city in the Uruguayan Department of Paysandu where the plane was spraying the insecticide on soya fields. More than 50 calves died in the following 24 hours from eating contaminated pasture, with a further 700 cattle affected, displaying symptoms of neurological disruption.
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