Calypso (thiacloprid)
The active ingredient, thiacloprid, is another new neonicotinoid insecticide registered for use on apples and pears. Calypso possesses both excellent systemic activity and excellent crop safety. Its mode of action is through interference with the nicotinergic acetylchlolin receptor, and it controls pests by both contact and stomach activities. Calypso has a low acute toxicity to warm-blooded animals; however, it is highly toxic to marine/estuarine invertebrates. Calypso possesses activity on apples against aphids, leafminers, leafhoppers, mirid bugs, codling moth, and plum curculio. It will also suppress scale insects and the apple maggot. On pears, it is active against pear psylla, aphids, mealybugs, leafminers, and the pear midge. It will also suppress scale insects on pears. Calypso has a 12-hour restricted entry interval (REI) and should not be applied less than 30 days before harvest (PHI = 30 days) on both apples and pears. Do not apply more than 8 fluid ounces per acre in a single application and no more than 16 fluid ounces per acre per year on either apples or pears.
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