Downy mildew
| Contributor: | Institut de Recerca i Tecnologia Agroalimentaries |
| Date Compiled: | 2024 |
Prevention
| Solution | Production stage (if possible with reference to BBCH scale) |
|---|---|
|
Wide crop rotations
|
Pre-season
|
|
Using resistant verieties
|
Sowing/Planting
|
Control
Regulations surrounding chemical products can change rapidly – always verify chemicals 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 | Risk resistance (FRAC Code) |
|---|---|---|---|---|---|---|
|
Cymoxanil
|
Synthetic fungicide
|
When first symptoms occur. Suspend treatments 7 days before harvest
|
1 (per crop cycle)
|
(CYMBAL) Dosage: 250 g/ha
|
Cyanoacetamide- oxime
|
Low to medium risk (27)
|
|
Methyram
|
Synthetic fungicide
|
Start of treatments since there are favorable conditions for the development of infection. Suspend treatments 14 days before harvest
|
3
|
(POLYRAM® DF) Dosage in open field: 2 kg/ha
|
dithiocarbamates and relatives (electrophiles)
|
low risk group without any signs of resistance developing to the fungicides (M03)
|
|
Mandipropamid
|
Synthetic fungicide
|
Start of treatments since there are favorable conditions for the development of infection. Suspend treatments 7 days before harvest
|
4 (1 intervention per crop cycle)
|
(PERGADO SC®) Dosage: 0,6 L/ha
|
CAA-fungicides (Carboxylic acid amides)
|
Resistance known in Plasmopara viticola but not in Phytophthora infestans. Cross resistance between all members of the CAA group. Low to medium risk. (40)
|
|
Azoxystrobin
|
Synthetic fungicide
|
Start of treatments since there are favorable conditions for the development of infection. Suspend treatments 7 days before harvest
|
3 (Among Azoxystrobin and Tryfloxystrobin)
|
(ORTIVA® TOP SC) Dosage: 1 L/ha
|
QoI-fungicides (Quinone outside inhibitors)
|
High risk (11)
|
|
Propamocarb
|
Synthetic fungicide
|
Start of treatments since there are favorable conditions for the development of infection. Suspend treatments 7 days before harvest
|
2 (per crop cycle)
|
(PREVITER) Dosage: 1,5 L/ha
|
Carbamates
|
Low to medium risk (28)
|
|
Amisulbrom
|
Synthetic fungicide
|
Start of treatments since there are favorable conditions for the development of infection. Suspend treatments 7 days before harvest
|
3
|
(LEIMAY®) Dosage: 0,6 L/ha
|
QiI - fungicides (Quinone inside inhibitors)
|
Resistance risk unknown but assumed to be medium to high (mutations at target site known in model organisms) (21)
|
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.