Pesticides for Powdery Mildew (Sweet Cherries)
| Stage of Development: Blossom | ||||||
|---|---|---|---|---|---|---|
| Recommended Product Choices | Grp1 | Amount per | REI2 | PHI3 (days) | Precautions and Notes | |
| Ha | Acre... | |||||
| mefentrifluconazole (Cevya) 33405 | 3 | 0.25 - 0.375 L | 0.1 - 0.15 L | 12 hours | 0 | Do not make more than 2 sequential applications before alternating to a non-group 3 fungicide registered for the same use. Begin applications prior to disease development. Apply an additional applic. at an interval of 7 - 14 days if disease persists or weather conditions are favourable for disease development. |
| Notes: For blocks with high mildew pressure, begin mildew spray program no later than bloom to petal fall. See petal fall section for available sprays. | ||||||
Stage of Development: Blossom
Powdery Mildew (Sweet Cherries)
1Group number for resistance management. NC = not classified.
2Re-entry interval on the label. An asterisk(*) indicates that no re-entry is shown on the label, but the WorkSafe BC re-entry interval may apply and is shown.
3Pre-harvest interval. Note: always read and follow the directions on the pesticide label.
| Stage of Development: Petal Fall to Husk Fall | ||||||
|---|---|---|---|---|---|---|
| Recommended Product Choices | Grp1 | Amount per | REI2 | PHI3 (days) | Precautions and Notes | |
| Ha | Acre... | |||||
| pyraclostrobin (Cabrio) 27323 | 11 | 670 g | 270 g | 12 h - 9 days | 10 | Use tank mixes with caution. Limit sprays of group 11 fungicides (Flint, Cabrio, Pristine) to 2/season. |
| penthiopyrad (Fontelis) 30331 | 7 | 1.0-1.75 L | 405-709 mL | 12 h | 0 | Do not apply more than 2 times per season. Use high rate for high disease pressure. |
| boscalid + pyraclostrobin (Pristine WG) 27985 | 7 + 11 | 750g - 1 kg | 304 g - 405 g | dry - 10 days | 0 | Limit sprays of class 11 fungicides (Flint, Cabrio, Pristine) to 2 per season for resistance management. 10 days REI for thinning. |
| mineral oil (Purespray Green) 27666 | NC | 10 L | 4 L | 12 h | 0 | For suppression of powdery mildew, apply in a minimum of 1000 L water/ha from two weeks after full bloom to pit hardening at 10-14 day intervals. Do not use in combination with or within 14 days of sulphur or captan. |
| metrafenone (Vivando) 29765 | U8 | 750 mL - 1.12 L | 304 - 453 mL | 12 h | 7 | Apply prior to onset of disease, and at 14-21 day intervals. Do not make more than 2 consecutive applications. |
| myclobutanil (Nova 40WP) 22399 | 3 | 340 g | 140 g | 12 h - 12 days | 1 | Caution - mildew resistance may be developing. Limit use of group 3 fungicides (Indar, Nova, Topas, Jade, Mission, Quash) to 2 sprays/season. 12 days REI for thinning. |
| trifloxystrobin (Flint) 30619 | 11 | 175 - 210 g | 71 - 85 g | 12 h – 4 days | 1 | Use higher rate for high disease pressure. Limit sprays of Group 11 fungicides (Flint, Cabrio, Pristine) to 2/season. 4 days REI for thinning. |
| metconazole (Quash 30402) | 3 | 245 - 280 g | 99 - 113 g | 12 h - 9 days | 14 | Suppression of powdery mildew only. Maximum one application/season. REI of 9 days is for thinning. |
| fluopyram + trifloxystrobin (Luna Sensation) 32107 | 7+11 | 300-400 mL | 121-162 mL | 12 h | 1 day | Use higher rate for high disease pressure. Rotate with fungicides from other groups. Limit use of group 11 fungicides to 2 applications per season. |
| mefentrifluconazole (Cevya) 33405 | 3 | 0.25 - 0.375 L | 0.1 - 0.15 L | 12 hours | 0 | Do not make more than 2 sequential applications before alternating to a non-group 3 fungicide registered for the same use. Begin applications prior to disease development. Apply an additional applic. at an interval of 7 - 14 days if disease persists or weather conditions are favourable for disease development. |
| pyraclostrobin + fluxapyroxad (Merivon) 33951 | 7 + 11 | 0.3 - 0.4 L | 0.12 - 0.16 L | 12 h - 12 days | 0 days | Limit sprays of Group 11 fungicides to 2 sprays/season. REI's: hand thinning - 12 days, hand harvesting - 1 days, mechanical harvesting and all other activities - 12 hours. |
| pydiflumetofen + difenoconazole (Miravis Duo) 33206 | 7 + 3 | 1 L | 405 ml | 12 hours | 0 days | Max 2 applications, then switch to a non-Group 7 and 3 fungicide. Application interval: 7 - 14 days. |
| sulphur (Cosavet DF Edge 31869, Kumulus 18836, Microthiol 29487 | M2 | 7.0 kg | 2.8 kg | 24 h | 1 | |
| fenazaquin (Magister SC) 34544 | 21 + 39 | 1.75 - 2.63 L | 0.7 - 1.1 L | 12 h - 17 days | 10 days | Toxic to bees. Avoid application during bloom. Maximum number of applications: 1 |
| Notes: For blocks with high mildew pressure, begin spray program no later than bloom to petal fall. For low pressure blocks, begin at husk fall. Rotate fungicide groups for resistance management. Caution - mildew resistance to group 3 fungicides (Nova, Indar, Jade, Topas, Mission, Quash) may be developing. Limit use of group 3 fungicides to 2 sprays/season on cherry. Group 11 fungicides are also at high risk for resistance. | ||||||
Stage of Development: Petal Fall to Husk Fall
Powdery Mildew (Sweet Cherries)
1Group number for resistance management. NC = not classified.
2Re-entry interval on the label. An asterisk(*) indicates that no re-entry is shown on the label, but the WorkSafe BC re-entry interval may apply and is shown.
3Pre-harvest interval. Note: always read and follow the directions on the pesticide label.
| Stage of Development: Summer | ||||||
|---|---|---|---|---|---|---|
| Recommended Product Choices | Grp1 | Amount per | REI2 | PHI3 (days) | Precautions and Notes | |
| Ha | Acre... | |||||
| mineral oil (Purespray Green) 27666 | NC | 10 L | 4 L | 12 h | 0 | For suppression of powdery mildew, apply in a minimum of 1000 L water/ha for two weeks after full bloom to pit hardening at 10-14 day intervals. Do not use in combination with or within 14 days of sulphur or captan. |
| penthiopyrad (Fontelis) 30331 | 7 | 1.0-1.75 L | 405-709 mL | 12 h | 0 | Do not apply more than 2 times per season. Use high rate for high disease pressure. |
| boscalid + pyraclostrobin (Pristine WG) 27985 | 7 + 11 | 750g - 1 kg | 300 g - 405 g | dry - 10 days | 0 | Limit sprays of class 11 fungicides (Flint, Cabrio, Pristine) to 2 per season for resistance management. |
| trifloxystrobin (Flint) 30619 | 11 | 175-210 g | 71-85 g | 12 h - 4 days | 1 | Use the higher rate when disease pressure is severe. Limit sprays of class 11 fungicides to 2 per season. 4 days REI for thinning. |
| pyraclostrobin (Cabrio) 27323 | 11 | 670 g | 270 g | 12 h - 9 days | 10 | Use tank mixes with caution. Limit sprays of class 11 fungicides ( Flint, Cabrio, Pristine) to 2 per season. |
| metrafenone (Vivando) 29765 | U8 | 750 mL - 1.12 L | 304 - 453 mL | 12 h | 7 | Apply prior to onset of disease and at 14 - 21 day intervals. Maximum of 2 sprays/season. |
| fluopyram + trifloxystrobin (Luna Sensation) 32107 | 7+11 | 300-400 mL | 121-162 mL | 12 h | 1 day | Use higher rate for high disease pressure. Rotate with fungicides from other groups. Limit use of group 11 fungicides to 2 applications per season. |
| mefentrifluconazole (Cevya) 33405 | 3 | 0.25 - 0.375 L | 0.1 - 0.15 L | 12 hours | 0 | Do not make more than 2 sequential applications before alternating to a non-group 3 fungicide registered for the same use. Begin applications prior to disease development. Apply an additional applic. at an interval of 7 - 14 days if disease persists or weather conditions are favourable for disease development. |
| pyraclostrobin + fluxapyroxad (Merivon) 33951 | 7 + 11 | 0.3 - 0.4 L | 0.12 - 0.16 L | 12 h - 12 days | 0 days | Limit sprays of Group 11 fungicides to 2 sprays/season. REI's: hand thinning - 12 days, hand harvesting - 1 days, mechanical harvesting and all other activities - 12 hours. |
| pydiflumetofen + difenoconazole (Miravis Duo) 33206 | 7 + 3 | 1 L | 405 ml | 12 hours | 0 days | Max 2 applications, then switch to a non-Group 7 and 3 fungicide. Application interval: 7 - 14 days. |
| flutianil (Gatten) 34297 | U 13 | 400 - 690 ml | 162 - 279 ml | 24 hours | 3 days | Use a higher rate and shorter spray interval under high disease pressure. Use water volumes of 280 - 935 litres per hectare for concentrate sprays and 936 - 2800 litres per hectare for dilute sprays. Max number of applications per year: 4. Apply to foliage during the fruiting stage. |
| sulphur (Cosavet DF Edge 31869, Kumulus 18836, Microthiol 29487 | M2 | 7.0 kg | 2.8 kg | 24 h | 1 | May cause injury during hot weather. |
| fenazaquin (Magister SC) 34544 | 21 + 39 | 1.75 - 2.63 L | 0.7 - 1.1 L | 12 h - 17 days | 10 days | Toxic to bees. Avoid application during bloom. Maximum number of applications: 1 |
| Notes: Caution - mildew resistance to group 3 fungicides (Nova, Indar, Jade, Topas, Mission, Quash) may be developing. Limit use of group 3 fungicides to 2 sprays/season on cherry. Avoid using these products late in the season if powdery mildew is abundant. Group 11 fungicides are also at high risk for resistance. | ||||||
Stage of Development: Summer
Powdery Mildew (Sweet Cherries)
1Group number for resistance management. NC = not classified.
2Re-entry interval on the label. An asterisk(*) indicates that no re-entry is shown on the label, but the WorkSafe BC re-entry interval may apply and is shown.
3Pre-harvest interval. Note: always read and follow the directions on the pesticide label.
| Stage of Development: Post-Harvest | ||||||
|---|---|---|---|---|---|---|
| Recommended Product Choices | Grp1 | Amount per | REI2 | PHI3 (days) | Precautions and Notes | |
| Ha | Acre... | |||||
| mineral oil (Purespray Green) 27666 | NC | 10 L | 4 L | 12 h | 0 | For suppression of powdery mildew, apply in a minimum of 1000 L water/ha. |
Stage of Development: Post-Harvest
Powdery Mildew (Sweet Cherries)
1Group number for resistance management. NC = not classified.
2Re-entry interval on the label. An asterisk(*) indicates that no re-entry is shown on the label, but the WorkSafe BC re-entry interval may apply and is shown.
3Pre-harvest interval. Note: always read and follow the directions on the pesticide label.