Minor Use Label Expansion Granted for Chloropicrin 100 Liquid Soil Fumigant and Pic Plus Fumigant for Control of Labeled Pests on Root and Tuber Vegetables in Canada

J. Chaput, OMAFRA, Minor Use Coordinator, Guelph

The Pest Management Regulatory Agency (PMRA) recently approved a minor use label expansion for CHLOROPICRIN 100 LIQUID SOIL FUMIGANT and PIC PLUS FUMIGANT for control of labeled pests in fields to be planted to all root and tuber vegetables, crop group 1 in Canada.  CHLOROPICRIN 100 LIQUID SOIL FUMIGANT and PIC PLUS FUMIGANT were already labeled in Canada for control of nematodes and several diseases on tobacco, strawberries, raspberries, tomatoes, peppers and potatoes. 

This registration now permits the use of these products on fields that are to be planted to all root and tuber vegetables including ginseng, carrots, radish, rutabagas, turnips, horseradish, parsnips, chervil, salsify, potatoes, sweet potatoes, red beets and sugarbeets. 

Nematodes and soil-borne diseases are critically important pests of root and tuber vegetables and many other crops around the world.  These minor use submissions were sponsored by the minor use office of OMAFRA in response to minor use priorities identified by root and tuber vegetable producers.

The minor use label expansion registration of Chloropicrin 100 and Pic Plus fumigants will help to manage several key pests of root and tuber vegetables, however management of such pests still requires a comprehensive IPM and resistance management program with access to all available tools and strategies.  The following is provided as general information only.  Users should consult the complete label before using Chloropicrin 100 and Pic Plus fumigants.      

Chloropicrin fumigants can be used for control of labeled pests on fields to be planted to root and tuber vegetables as follows:

Chloropicrin 100 can be applied at a rate of 93 L per ha in a broadcast or banded application according to the detailed label directions.

Pic Plus can be applied at a rate of 108 L per ha in a broadcast or banded application according to the detailed label directions.

Follow all other precautions and directions for use on the Chloropicrin 100 and Pic Plus fumigant labels carefully.

Chloropicrin 100 and Pic Plus fumigants should be used in an IPM program and in rotation with other management strategies to adequately manage resistance.

We wish to acknowledge the assistance and guidance of the personnel of Hendrix and Dail Inc. and several grower organizations for their support of these registrations and the personnel of the Pest Management Regulatory Agency for evaluating and approving this important pest management tool. 

 For copies of the new minor use label contact Jim Chaput, OMAFRA, Guelph (519) 826-3539.