Sclerotinia and grey mould

Contributor: Institut de Recerca i Tecnologia Agroalimentaries
Date Compiled: 2024
Creative Commons "Attribution-Share Alike"
Botrytis cinerea (grey mould-rot); Symptoms on lettuce (Lactuca sativa). Image copyright: ©Gerald Holmes, Strawberry Center, Cal Poly San Luis Obispo/via Bugwood.org - CC BY-NC 3.0 US

Prevention

Solution Production stage (if possible with reference to BBCH scale)
Areate the greenhouse
From Sowing/Planting to Harvest
Use less susceptible varieties
Sowing/Planting
Crop rotation
Pre-season

Control

Solution Product Category
Trichoderma asperellum (CEPA T34)
Microbiological fungicide

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)
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)
Boscalid
Synthetic fungicide
Start of treatments since there are favorable conditions for the development of infection. Suspend treatments 14 days before harvest
3 (Among the SDHIs)
(SIGNUM®) Dosage: 1,5 kg/ha
SDHI (Succinate dehydrogenase inhibitors)
Medium to high risk. (7)
Penthiopyrad
Synthetic fungicide
Start of treatments since there are favorable conditions for the development of infection. Suspend treatments 7 days before harvest
3 (Among the SDHIs)
(FONTELIS®) Dosage: 1,5 kg/ha
SDHI (Succinate dehydrogenase inhibitors)
Medium to high risk. (7)
Difenoconazole
Synthetic fungicide
Start of treatments since there are favorable conditions for the development of infection. Suspend treatments 14 days before harvest
1 (With Fluxapyroxad + Difenoconazole)
(DAGONIS®) Dosage: 1,2-2 L/ha
DMI-fungicides (Demethylation inhibitors) (SBI: Class I)
Medium risk (3)
Piraclostrobin
Synthetic fungicide
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.