Crop(s): Tomato
Disease(s): Powdery mildew
Resistance management strategy for:
Group 3 |
Demethylation inhibitor (DMI); |
Group 3+11 |
DMI + Quinone outside Inhibitor (QoI); |
Group 7 |
Succinate dehydrogenase inhibitors (SDHI); |
Group 7+3
Group 7+11 |
SDHI + DMI;
SDHI + QoI |
Group 13 |
Aza-naphthalenes. |
Group 21 |
Quinone inside Inhibitor (QiI) |
Guidelines:
- Apply fungicides before disease becomes established.
- Do not apply more than four sprays of a Group 3 containing fungicide per crop.
- If applying Group 7, 11, 13 or 21 containing fungicides, do not apply more than two consecutive sprays before changing to another group. Do not apply more than three applications of a Group 7, 11, 13 or 21 containing fungicide per crop. If consecutive sprays are used, then use the same number of sprays of an alternative group before using another fungicide group, which includes sprays from consecutive crops.
- Group 7 and 21 containing product should not exceed thirty-three percent (33%) of the total sprays per crop. A maximum of five applications of Group 21 may be made per calendar year in case of multiple cropping cycles.