Assail (30SG and 70WP) is not a new insecticide for tree fruits. It is registered for use in Wisconsin on pome fruits, including apple, crabapple, pear, loquat, and quince as well as stone fruits, including apricot, sweet and tart cherry, nectarine, peach, plums, pluot, plumcot, and prune. It is marketed by United Phosphorus Inc. (UPI) under two formulations 30SG (30% active ingredient by weight, soluble granule) and 70 WP (70% active ingredient by weight, wettable powder). Assail is a neonicotinoid insecticide with the active ingredient acetamiprid (IRAC code 4A). It has activity against eggs, larvae and adults of several insect pests through contact and ingestion. Assail is rapidly absorbed by the plant tissue and quickly moves via systemic translaminar activity.

Both Assail formulations are registered for control of aphids, tentiform leafminer, leafhoppers, codling moth, oriental fruit moth, lesser appleworm, mealybug, psylla, mullein plant bug, European apple sawfly, Japanese beetle, apple maggot, San Jose scale (suppression only in pome fruit), plum curculio, dogwood borer, glass winged sharpshooter, peach twig borer, catfacing insects (e.g., tarnished plant bugs and stinkbug), cherry fruit fly, black cherry fruit fly, Western cherry fruit fly, and rose chafer.

Assail may be applied by ground equipment and by air. For both formulations of Assail 30SG and 70WP, apply in spray volume of at least 50 gallons per acre by ground or a minimum of 10 gallons per acre by air. Assail is highly toxic to bees. Do not apply immediately before or during bloom. Assail is highly toxic to aquatic organisms and birds and must be kept out of water.

As always, make sure to read the label before using any pesticide. You can find the label of Assail 30SG by clicking here. You can find the label of Assail 70WP by clicking here.

This article was posted in Insects and tagged Assail.