Pesticides for Powdery Mildew (Apples)
| Stage of Development: 15 mm Green to Tight Cluster | ||||||
|---|---|---|---|---|---|---|
| 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 at tight cluster and repeat at 10-14 day intervals. Do not use in combination with or within 14 days of sulphur, Kumulus, Microthiol or captan. Do not apply during freezing temperatures. |
| thiophanate-methyl (Senator 50SC) 32096 | 1 | 3.15 L | 1.27 L | 24 h* | 1 | May harm predatory mites. Maximum 2 applications per season. |
| penthiopyrad (Fontelis) 30331 | 7 | 1.0-1.5 L | 405-607 mL | 28 | Do not apply more than 3 times per season, or more than twice sequentially. Use high rate for high disease pressure. | |
| trifloxystrobin (Flint) 30619 | 11 | 140 - 210 g | 57 - 85 g | 12 h–4 days | 14 | Use the higher rate during pink to bloom stages. Limit sprays of group 11 fungicides (Flint, Sovran, Pristine) to 2 per season. 4 days REI for thinning. |
| kresoxim-methyl (Sovran) 26257 | 11 | 240 - 450 g | 100 - 182 g | 48 h | 30 | Use high rate for high disease pressure. Limit sprays of group 11 fungicides to 2 per season. Caution: drift may injure cherries. |
| myclobutanil (Nova 40WP) 22399 | 3 | 340 g | 140 g | 12 h-12 days | 14 | Limit use of Group 3 fungicides (nova, Inspire) to 2 sprays per season. Rotate with fungicides from other groups. 12 days REI for thinning. |
| boscalid + pyraclostrobin (Pristine WG) 27985 | 7 + 11 | 1.0 - 1.2 kg | 405 - 485 g | dry to 12 days | 5 | Avoid more than 2 consecutive applications. Limit sprays of Group 11 fungicides (Flint, Sovran, Pristine) to 2 per season. 12 days REI for thinning. |
| flutriafol (Fullback) 31679 | 3 | 585 - 877 mL | 237 - 355 mL | 12 h | 14 | Limit use of group 2 fungicides (Nova, Inspire, Fullback) to 2 sprays/season. Rotate with fungicides from other groups. |
| difenoconazole + cyprodinil (Inspire Super) 30827 | 3 + 9 | 836 mL | 338 mL | 12 h | 14 | Suppression of powdery mildew. Limit use of group 3 fungicides (Nova, Inspire, Fullback) to 2 sprays/season. |
| fluopyram pyrimethanil (Luna Tranquility) 30510 | 7 + 9 | 600 mL | 242 mL | 12 h | 14 | Use as preventative treatment. Do not apply more than 2 times/season. |
| benzovindiflupyr (Aprovia) 31981 | 7 | 500 mL | 202 mL | 12 h | 30 | Rotate with other non-Group 7 products. Do not apply in two consecutive sprays nor more than 2 L/ha (1.0 L/acre) per season. |
| fluxapyroxad (Sercadis) 31697 | 7 | 167-333 mL | 68-135 mL | 12 h | 0 | The use of a non-ionic surfactant (0.125%) is recommended. Begin treatment when conditions favour disease development. Apply a second spray 7-14 days up to blossom if conditions for disease development persist. Maximum amount per season: 1.33 L/ha (538 mL/acre). Maximum 4 applications per season. |
| benzovindiflupyr + difenoconazole (Aprovia Top) 31526 | 3 + 7 | 643 mL | 260 mL | 12 h | 30 | Rotate with other fungicides that do not contain Group 3 or Group 7 fungicides for resistance management. Do not apply more than 2 consecutive applications. |
| Polyoxin D Zinc Salt (Diplomat 5SC) 32918 | 19 | 259 - 926 ml | 104 - 374 ml | 0 days | Suppression of powdery mildew. Begin as a preventative application when conditions favour disease development, 7 - 14 day spray interval. Number of applications: 3-10 depending on rate. | |
| Mineral oil (Suffoil-X) 33099 | NC | 10 L/1000 L of water | 10 L/1000 L of water | 12 hours | 0 | Test for crop tolerance before widespread use. Apply at tight cluster and continue every 10-14 days. Avoid application during bloom. Do not use within 14 days before or after captan fungicide. Do not apply more than 8 applications per year. |
| 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 - 5 days, mechanical harvesting and all other activities - 12 hours. |
| sulphur (Cosavet DF Edge 31869, Kumulus 18836, Microthiol 29487 | M2 | 7.0 kg | 2.8 kg | 24 h | 1 | Do not apply sulphur in combination with, immediately before, or closely following oil sprays. |
| 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 |
| pyraziflumid (Parade) 34526 | 7 | 227-340 ml | 92-138 ml | 12 h | 7 days | Do not apply more than 2 consecutive applications of Parade or other group 7 fungicides before switching to a non-group 7 fungicide. |
| ipflufenoquin (Kinoprol 20 SC) 34756 | 52 | 165 - 220 ml | 67 - 89 ml | 12 h | 7 days | The retreatment interval is 7-10 days. Maximum 3 applications per year. Max 2 sequential applications. The 165 ml/ha rate is for suppression of powdery mildew. Addition of a surfactant my improve efficacy. |
| Notes: Early spring applications of fungicide (beginning no later than tight cluster) are necessary to prevent secondary spread of powdery mildew in susceptible apple varieties. | ||||||
Stage of Development: 15 mm Green to Tight Cluster
Powdery Mildew (Apples)
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: Pink | ||||||
|---|---|---|---|---|---|---|
| Recommended Product Choices | Grp1 | Amount per | REI2 | PHI3 (days) | Precautions and Notes | |
| Ha | Acre... | |||||
| calcium polysulphide (Lime sulphur 30%) 16465 | M2 | 9 L/1000 L | 9 L/1000 L | 48 h | n/a | Lime sulphur may injure "sulphur shy" varieties. May cause injury during hot temperatures. May harm predatory mites. |
| trifloxystrobin (Flint) 30619 | 11 | 140 - 210 g | 57 - 85 g | 12 h – 4 days | 14 | Use the higher rate from pink to Bloom stages. Limit sprays of group 11 fungicides (Flint, Sovran, pristine) to 2 sprays/season. 4 days REI for thinning. |
| boscalid + pyraclostrobin (Pristine WG) 27985 | 7 + 11 | 1.0 - 1.2 kg | 405 g - 485 g | dry to 12 days | 5 | Avoid more than 2 consecutive applications. Limit sprays of Group 11 fungicides (Flint, Sovran, Pristine) to 2 per season. Caution: Sovran drift may injure cherries. 12 days REI for thinning. |
| Bacillus subtilis (Serenade Opti) 31666 | 44 | 1.7-3.3 kg | 0.69-1.3 kg | 24 h* | 0 | Suppression only. Apply preventatively at 7- to 10-day intervals. |
| mineral oil (Purespray Green) 27666 | NC | 10L | 4 L | 12 h | 0 | For suppression of powdery mildew, apply in a minimum of 1000 L water/ha at tight cluster and repeat at 10-14 day intervals. Do not use in combination with or within 14 days of sprays containing sulphur or captan. |
| thiophanate-methyl (Senator 50SC) 32096 | 1 | 3.15 L | 1.27 L | 24 h* | 1 | May harm predatory mites. Maximum 2 applications per season. |
| penthiopyrad (Fontelis) 30331 | 7 | 1.0-1.5 L | 405-607 mL | 12 h | 28 | Do not apply more than 3 times per season, or more than twice sequentially. Use high rate for high disease pressure. |
| fluopyram pyrimethanil (Luna Tranquility) 30510 | 7 + 9 | 600 mL | 242 mL | 12 h | 14 | Use preventatively. Do not apply more than 2 times per season. |
| myclobutanil (Nova 40WP) 22399 | 3 | 340 g | 140 g | 12 h - 12 days | 14 | Rotate with fungicides from other group. Limit use of group 3 fungicides (Nova, Inspire, Fullback) to 2 sprays/season. |
| flutriafol (Fullback) 31679 | 3 | 585 - 877 mL | 237 - 355 mL | 12 h | 14 | Rotate with fungicides from other groups. Limit use of group 3 fungicides (Nova, Inspire, Fullback) to 2 sprays/season. |
| difenoconazole + cyprodinil (Inspire Super) 30827 | 3 + 9 | 836 mL | 338 mL | 12 h | 14 | Suppression of powdery mildew. Limit use of group 3 fungicides (Nova, Inspire, Fullback, Inspire Super) to 2 sprays/season. |
| kresoxim-methyl (Sovran) 26257 | 11 | 240 - 450 g | 100 - 182 g | 48 h | 30 | CAUTION: Sovran drift may injure cherries.Use higher rate during pink stage. Limit sprays of group 11 fungicides (Flint, Sovran, Pristine) to 2/season. |
| benzovindiflupyr (Aprovia) 31981 | 7 | 500 mL | 202 mL | 12 h | 30 | Rotate with other non-Group 7 products. Do not apply in two consecutive sprays nor more than 2 L/ha (1.0 L/acre) per season. |
| fluxapyroxad (Sercadis) 31697 | 7 | 167-333 mL | 68-135 mL | 12 h | 0 | The use of a non-ionic surfactant (0.125%) is recommended. Begin treatment when conditions favour disease development. Apply a second spray 7-14 days up to blossom if conditions for disease development persist. Maximum amount per season: 1.33 L/ha (538 mL/acre). Maximum 4 applications per season. |
| benzovindiflupyr + difenoconazole (Aprovia Top) 31526 | 3 + 7 | 643 mL | 260 mL | 12 h | 30 | Rotate with other fungicides that do not contain Group 3 or Group 7 fungicides for resistance management. Do not apply more than 2 consecutive applications. |
| Polyoxin D Zinc Salt (Diplomat 5SC) 32918 | 19 | 259 - 926 ml | 104 - 374 ml | 0 days | Suppression of powdery mildew. Begin as a preventative application when conditions favour disease development, 7 - 14 day spray interval. Number of applications: 3-10 depending on rate. | |
| Mineral oil (Suffoil-X) 33099 | NC | 10 L/1000 L of water | 10 L/1000 L of water | 12 hours | 0 | Test for crop tolerance before widespread use. Apply at tight cluster and continue every 10-14 days. Avoid application during bloom. Do not use within 14 days before or after captan fungicide. Do not apply more than 8 applications per year. |
| 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 - 5 days, mechanical harvesting and all other activities - 12 hours. |
| sulphur (Cosavet DF Edge 31869, Kumulus 18836, Microthiol 29487 | M2 | 7.0 kg | 2.8 kg | 24 h | 1 | Do not apply sulphur in combination with, immediately before, or closely following oil sprays. See description of powdery mildew. |
| 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 |
| ipflufenoquin (Kinoprol 20 SC) 34756 | 52 | 165 - 220 ml | 67 - 89 ml | 12 h | 7 days | The retreatment interval is 7-10 days. Maximum 3 applications per year. Max 2 sequential applications. The 165 ml/ha rate is for suppression of powdery mildew. Addition of a surfactant my improve efficacy. |
| Notes: Rotate fungicides from different groups for resistance management. | ||||||
Stage of Development: Pink
Powdery Mildew (Apples)
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 or Calyx | ||||||
|---|---|---|---|---|---|---|
| Recommended Product Choices | Grp1 | Amount per | REI2 | PHI3 (days) | Precautions and Notes | |
| Ha | Acre... | |||||
| calcium polysulphide (Lime sulphur 30%) 16465 | M2 | 9 L/1000 L | 9 L/1000 L | 48 h | n/a | Lime sulphur may injure "sulphur shy" varieties or may cause injury during hot temperatures. May harm predatory mites. |
| 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 at tight cluster and repeat at 10-14 day intervals. Do not use in combination with or within 14 days of sprays containing sulphur or captan. |
| thiophanate-methyl (Senator 50SC) 32096 | 1 | 3.15 L | 1.27 L | 24 h* | 1 | May harm predatory mites. Maximum 2 applications per season. |
| penthiopyrad (Fontelis) 30331 | 7 | 1.0-1.5 L | 405-607 mL | 12 h | 28 | Do not apply more than 3 times per season, or more than twice sequentially. Use high rate for high disease pressure. |
| fluopyram pyrimethanil (Luna Tranquility) 30510 | 7 + 9 | 600 mL | 242 mL | 12 h | 14 | Use preventatively. Do not apply more than 2 times per season. |
| boscalid + pyraclostrobin (Pristine WG) 27985 | 7 + 11 | 1.0 - 1.2 kg | 405 g - 485 g | dry to 12 days | 5 | Limit sprays of Group 11 fungicides (Flint, Sovran, Pristine) to 2/season for resistance management. Rotate with other fungicides. Use the higher rate during pink to bloom stages. Caution: Sovran drift may injure cherries. 12 days REI for thinning. |
| Bacillus subtilis (Serenade Opti) 31666 | 44 | 1.7-3.3 kg | 0.69-1.3 kg | 24 h* | 0 | Suppression only. Apply preventatively at 7- to 10-day intervals. |
| myclobutanil (Nova 40WP) 22399 | 3 | 340 g | 140 g | 12 h - 12 days | 14 | Limit use of Group 3 fungicides (Nova, Inspire, Fullback) to 2 sprays/season. Rotate with fungicides from other groups. 12 days REI for thinning. |
| flutriafol (Fullback) 31679 | 3 | 585 - 877 mL | 237 - 355 mL | 12 h | 14 | Limit use of Group 3 fungicides (Nova, Inspire, Fullback) to 2 sprays/season. Rotate with fungicides from other groups. |
| difenoconazole + cyprodinil (Inspire Super) 30827 | 3 + 9 | 836 mL | 338 mL | 12 h | 14 | Suppression of powdery mildew. Limit use of Group 3 fungicides (Nova, Inspire, Fullback) to 2 sprays/season. |
| trifloxystrobin (Flint) 30619 | 11 | 140 - 210 g | 57 - 85 g | 12 h – 4 days | 14 | Limit sprays of Group 11 fungicides (Flint, Sovran, Pristine) to 2/season for resistance management. Rotate with fungicides from other groups. CAUTION: Sovran may injure cherries. 4 days REI for thinning. |
| kresoxim-methyl (Sovran) 26257 | 11 | 240 - 450 g | 100 - 182 g | 48 h | 30 | CAUTION: Sovran drift may injure cherries. Limit sprays of Group 11 fungicides (Flint, Sovran, Pristine) to 2/season for resistance management. Rotate with fungicides from other groups. |
| benzovindiflupyr + difenoconazole (Aprovia Top) 31526 | 3 + 7 | 643 mL | 260 mL | 12 h | 30 | Rotate with other fungicides that do not contain Group 3 or Group 7 fungicides for resistance management. Do not apply more than 2 consecutive applications. |
| benzovindiflupyr (Aprovia) 31981 | 7 | 500 mL | 202 mL | 12 h | 30 | Rotate with other non-Group 7 products. Do not apply in two consecutive sprays nor more than 2 L/ha (1.0 L/acre) per season. |
| Polyoxin D Zinc Salt (Diplomat 5SC) 32918 | 19 | 259 - 926 ml | 104 - 374 ml | 0 days | Suppression of powdery mildew. Begin as a preventative application when conditions favour disease development, 7 - 14 day spray interval. Number of applications: 3-10 depending on rate. | |
| Mineral oil (Suffoil-X) 33099 | NC | 10 L/1000 L of water | 10 L/1000 L of water | 12 hours | 0 | Test for crop tolerance before widespread use. Apply at tight cluster and continue every 10-14 days. Avoid application during bloom. Do not use within 14 days before or after captan fungicide. Do not apply more than 8 applications per year. |
| 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 - 5 days, mechanical harvesting and all other activities - 12 hours. |
| 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 |
| ipflufenoquin (Kinoprol 20 SC) 34756 | 52 | 165 - 220 ml | 67 - 89 ml | 12 h | 7 days | The retreatment interval is 7-10 days. Maximum 3 applications per year. Max 2 sequential applications. The 165 ml/ha rate is for suppression of powdery mildew. Addition of a surfactant my improve efficacy. |
| Notes: Additional notes: Rotate fungicides from different groups for resistance management. | ||||||
Stage of Development: Petal fall or Calyx
Powdery Mildew (Apples)
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... | |||||
| Notes: See petal fall for available fungicides. Use caution with sulphur or oil sprays during hot weather. Jonagold is sensitive to sulphur. | ||||||
Stage of Development: Summer
Powdery Mildew (Apples)
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.