Propiconazole, the active ingredient found in Banner Maxx, is an odorless, yellowish clear foliar fungicide. In other words, it inhibits the growth of fungus on certain plants. Propiconazole first appeared in 1981 to protect seed grass. In 1987 the EPA extended its uses to include food crops, adding more food crops in 1993 and 1994.
Propiconazole targets fungi, bacteria, and viruses affecting plants.
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Propiconazole Mode of Action
Products using propiconazole interfere with the synthesis of ergosterol in plant life, ergosterol being a molecule essential to the formation of fungus. As a result, the formation of fungus is slowed and eventually stopped.
Propiconazole is primarily used on seed grasses, corn, peanuts, mushrooms, oats, wild rice, almonds, pecans, peaches, plums, nectarines, prunes, and apricots. It is registered for use on bananas, cereal grains, citrus, rye, sugarcane, and wheat. Propiconazole is also used to protect turf including golf courses and sod farms, and on ornamental plants.
Propiconazole is labeled as having moderately low acute toxicity. Extreme caution should be used when using this chemical near water as it is highly toxic to fish and may pollute water sources.