Brassica Vegetables Disease Fungicides Tomatoes

Torrent 400SC Fungicide label expanded via Minor Use Program to control diseases on field tomatoes and Brassica vegetables

J. Chaput, OMAFRA, Minor Use Coordinator, Guelph

The Pest Management Regulatory Agency (PMRA) recently announced the approval of URMULE registrations for Torrent 400SC Fungicide for control of late blight on field tomatoes and suppression of downy mildew on Brassica vegetables, crop group 5 in Canada. The active ingredient cyazofamid was already labeled on potatoes, cucurbits, spinach, basil, lettuce, beans and carrots for several important diseases.

These minor use projects were sponsored in 2011 and early 2012 by the minor use office of OMAFRA as a result of minor use priorities established by growers and extension personnel. The minor use label expansions for Torrent 400SC Fungicide are a significant step towards developing an improved pest management toolkit for these diseases in Canada.

The following is provided as an abbreviated, general outline only. Users should consult the complete label before using Torrent 400SC Fungicide. Details concerning the use of non-ionic or organosilicone surfactants are indicated on the label.

 Crop(s) Pest Rate (L/ha) Maximum number of applications per crop per year Pre-Harvest Interval
Field tomatoes Late blight 0.1 – 0.2 5 1 day
Brassica vegetables, crop group 5 (includes broccoli, Brussels sprouts, cabbage, cauliflower, Chinese broccoli [gai lon], rapini, nappa cabbage, bok choy, gai choy, mustard greens, kale, kohlrabi, mizuna, etc.) Downy mildew, preventative suppression 0.2 5 1 day

Torrent 400SC Fungicide should be used in an integrated pest management program and in rotation with other management strategies to adequately manage resistance.

Follow all other precautions and directions for use on the Torrent 400SC Fungicide label carefully.

We also wish to acknowledge the personnel of ISK Biosciences Corporation 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 a copy of the new minor use label for tomatoes contact Janice LeBoeuf, OMAFRA, Ridgetown (519) 674-1699 or; for Brassica vegetables contact Marion Paibomesai, OMAFRA, Guelph (519) 826-4963 or or visit

Note: these same uses will also be added to the Ranman 400SC Fungicide

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