Strawberry – Grey mould (𝘉𝘰𝘵𝘳𝘺𝘵𝘪𝘴)

Crop(s):          Strawberry

Disease(s):     Grey mould (Botrytis)

Resistance management strategy for:

Guidelines:

1. Apply a program of protectant fungicides during flowering.
2. Do not apply more than two consecutive sprays of Group 2, 9, 12, 17, 19 or 21 Continue alternation of Mode of Action between successive crops.
3. Do not apply Groups 52 or 17 (solo) as consecutive applications, or more than 3 times per season.
4. If using Group 17 with an effective mixing partner, or a different Group, do not apply the Group 17 containing mixtures for more than 50% of all applications.
5. If applying Group 7 (including 7+3, 7+11 or 7+12) fungicides, do not apply more than two consecutive sprays before changing to another group. Do not apply more than three Group 7 sprays per season. If consecutive sprays are used, then use the same number of sprays of an alternative group before using another Group 7, including sprays in consecutive seasons.
6. If three or fewer sprays are applied per crop, use only one spray containing a Group 9, 12 or 21 containing fungicide. Use a maximum of three sprays containing Group 9, 12 or21 containing fungicides, or 33% of sprays (whichever is lower). Where there are several cropping cycles per calendar year, a maximum of five (5) sprays containing Group 21 can be applied.
7. Do not apply Group 19 fungicides more than 6 times per season, or more than 50% of the total number of sprays.
8. No specific resistance management strategy has been developed for low-risk fungicides, including those in Group M and BM. These products should be included in a management strategy as per label recommendations.

Where there are several crop cycles per year, up to a maximum of five (5) applications containing Group 21 can be applied.