Powdery mildew
| Contributor: | Aarhus Universitet |
| Date Compiled: | 2025 |
Prevention
| Solution | Production stage (if possible with reference to BBCH scale) |
|---|---|
|
Provide good air circulation
|
From Sowing/Planting to Harvest
|
|
Avoid applying excess fertilizer
|
From Sowing/Planting to Harvest
|
| Solution | Production stage (if possible with reference to BBCH scale) |
|---|---|
|
Resistant varieties are available (for example LANCASTER, LUTECIA and ORINADE-Gautìer semeces)
|
Sowing/Planting
|
Monitoring
| Solution | Production stage (if possible with reference to BBCH scale) |
|---|---|
|
Observations on plants are needed: threshold 3% disease severity.
|
From Sowing/Planting to Harvest
|
Control
This section contains biological plant protection products and other substances allowed in organic farming
Regulations surrounding biological products can change rapidly – always verify products recommended here with the most recent legislation and lists of products registered for your country
Regulations surrounding biological products can change rapidly – always verify products recommended here with the most recent legislation and lists of products registered for your country
| Solution | Product Category | Production stage (if possible with reference to BBCH scale) | Max nb. of a. i. application/year | Application Details and Notes (commercial product example) | Chemical Group |
|---|---|---|---|---|---|
|
Bacillus amyloliquefaciens - FZB24
|
Microbiological fungicide
|
From BBCH 10 to BBCH 89
|
12
|
(Taegro) Contact organic fungicide. Dosage: 3 Kg/ha
|
|
|
Potassium bicarbonate
|
Biological fungicide
|
From BBCH 10 to BBCH 89
|
|
(KARMA 85) Contact organic fungicide. Dosage: 5-10 L/ha. Apply preventively from BBCH10 to BBCH85 every 7 days
|
Basic substance
|
|
COS - OGA
|
Biological fungicide
|
From BBCH 13 to BBCH 89
|
5
|
(IBISCO) Dosage: 2 L/ha
|
Low risk Active substance
|
The information made available here has been obtained from or is based upon sources believed by CABI to be reliable but is not guaranteed as to accuracy or completeness. Anyone acting or relying on such information does so entirely at their own risk. The efficacy of the IPM methods included above will depend on local conditions and might not always be suitable everywhere within the specified country.