Crop(s): Strawberry runner production
Disease(s): Powdery mildew
Resistance management strategy for:
Group 3 Demethylation inhibitors (DMI);
Group 7 Succinate dehydrogenase inhibitors (SDHI);
Group 7+12 SDHI + phenylpyrroles;
Group 8* Hydroxy-(2-amino-) pyrimidines;
Group 11 Quinone outside inhibitor (QoI);
Group 13* Aza-naphthalenes; and
Group U6 Phenyl-acetamide.
- This strategy is for the additional range of compounds available to strawberry runner producers under permit.
- Apply a program of protectant fungicides from early crop establishment and maintain a regular spray program throughout the crop growing cycle. If weather conditions favour powdery mildew development, use a Group 3 or 11 fungicide.
- Do not apply more than four Group 3 sprays per season.
- Do not apply more than two consecutive sprays of Group 3 fungicides, including from one season to the next.
- If applying Group 7 fungicides (including 7+12), 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.
- Apply Group 11 fungicides preventively.
- Do not apply consecutive sprays of Group 11 fungicides, including from one season to the next.
- If three or fewer powdery mildew fungicide sprays are applied per crop, use only one spray containing a Group 11 fungicide. If four to six sprays are applied per crop, use no more than two sprays containing a Group 11 fungicide. If seven or more sprays are applied per crop use a maximum of three sprays containing a Group 11 fungicide. Do not apply more than three Group 11 sprays per season.
- Do not use Group 3 fungicides curatively.
- Fungicides from Group U6, 8 and 13 are available for use on strawberry runner crops under individual permits from the APVMA.
- Apply a maximum of two (2) Group U6 sprays per season.
- Apply a maximum of four (4) Group 8 or 13 sprays per season. Do not apply more than two consecutive sprays before changing to another group.
- 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.
* Currently only available under temporary permit. Always check that permits are valid prior to use.