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Posted 29 April 2014. PMN Crop News.

ToracTM 15EC Insecticide: A New Solution for Potato Growers in Western U. S.

Source: Nichino America Press Release.

Wilmington, Deleware (April 1, 2014)--ToracTM 15EC Insecticide from Nichino America, Inc. is now registered for use in potatoes in Colorado, Idaho, Oregon, Texas, and Washington1. Torac provides fast knockdown and control of all stages of potato psyllid as well as excellent control of Colorado potato beetle, aphids, leafhoppers, and thrips.


The active ingredient in Torac, tolfenpyrad, works by blocking cellular respiration and is extremely effective on all stages of potato psyllid: eggs, nymphs and adults. Torac halts feeding damage immediately, thus reducing the amount of Zebra Chip. Torac belongs to the METI (Mitochondrial Electron Transport Inhibitor) class of compounds, IRAC Group 21A Insecticide. For effective resistance management, Torac should be used in rotation with insecticides of different modes of action.

Torac is a contact, foliar insecticide which means that sufficient spray coverage is essential. Nichino America recommends that Torac be used with a minimum water volume of 20 gallons per acre by ground. Please consult the Torac label for chemigation recommendations. Aerial applications (except in TX) of Torac should be used with a minimum of 5 gallons per acre. Based on the label, potato growers can make two applications per growing season at a 21 fl oz rate. The label also states a 12-hour reentry interval (REI) and a 14-day preharvest interval (PHI).

Torac has been tested in University trials for several years with very successful results in the control of potato psyllid and reduction of Zebra Chip. Please refer to your local Nichino America sales or product development representative for more information.

1for information on product registration in a specific state, contact your state pesticide regulatory agency