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Pesticides That Are Used in Growing Wine Grapes

There are many different pesticides used on wine grapes to keep the grapes safe from fungus, mold, weeds and insects. Any chemical used to repel any of these pests is referred to as a pesticide. But some are more specific and only repel insects or fungus and are called insecticides or fungicides. There are more than 50 different pesticides that are applied every year to wine grapes in amounts over 10,000 pounds in the state of California, where 90 percent of the wine in the United States is made.

  1. Sulfur

    • Sulfur is a yellow mineral with a strong rotten egg smell, and is the most heavily used active ingredient in pesticides for wine grapes. Sulfur is both a fungicide and insecticide, meaning sulfur kills molds, fungi and insects. More than 16 million pounds are used annually, and this pesticide is mildly toxic to humans.

    Petroleum

    • Refined petroleum distillates are oils that are byproducts of the refining of petroleum. Refined petroleum distillates with regards to pesticides is essentially mineral oil, which is also used in a number of cosmetic applications. Refined petroleum distillates are used as an insecticide for wine grapes.

    Isopropylamine Salt

    • Isopropylamine salt is also called glyphosate, and this chemical is an herbicide that prevents invasive weeds from choking and killing wine grape vines. This pesticide is relatively safe for humans, although it is considered a potential ground water contaminant. Isopropylamine salt only kills plants that are already growing, and is not used as a preventative.

    Fun Fact

    • In the state of California, wine grapes use the most pesticides of any other crop. According to the California Department of Pesticide Regulation, 21.7 million pounds of active pesticide ingredients were used on wine grapes in 2009. The crop with the second-highest amount of active pesticide ingredients used was almonds, with 18.8 million pounds. The pounds used only refers to the active pest-killing chemical, not any other ingredients used in pesticides.

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Growing Grapes
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