Disease(s): Downy Mildew
Resistance Management Strategy for:
Group 4 Phenylamide;
Group 11 Quinone outside Inhibitor (QoI);
Group 28 + 43 Carbamate plus Benzamide;
Group 40 Carboxylic acid amide;
Group 49 Oxysterol binding protein inhibitor (OSBP); and
Group 49 + 11 OSBP + QoI.
- Applications made within the nursery count towards the total number of applications allowed per crop. It is recommended that disease control is started early and maintain a regular program using a fungicide from groups other than Group 4, 11, 28+43, 40, 49 or 49+11.
- When conditions favour disease development, DO NOT wait for disease to appear, but apply two consecutive sprays of a Group 4, 11, 28+43, 49 or 49+11 fungicides, at the interval recommended on the label, or a single spray of a Group 11 fungicide. Then resume the program of sprays using products from a different group to the Group 4, 11, 28+43, 49 or 49+11 fungicide just applied.
- DO NOT apply more than four sprays of a Group 4 or of a Group 40 product per season.
- DO NOT apply more than three sprays of a Group 49 containing product. Group 49 containing sprays should not consist of more than 33% of the total number of fungicide sprays per crop. Group 49+11 sprays count as both a Group 49 and a Group 11 spray.
- DO NOT apply more than two sprays of Group 11 or 28+43 containing fungicides (including 49+11) per crop.
- Apply Group 4, 11 and 49 (including 49+11) fungicides preventatively.
- Apply Group 4 and 49 fungicides only in mixtures or co-formulations with a registered fungicide from a different mode of action group with no known resistance.
- Continue alternation of fungicides between successive crops. DO NOT make more than (6) six total applications of a Group 49 product per year on the same area targeting the same disease.