Sclerotinia and grey mould

Contributor: Université de Liège
Date Compiled: 2025
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)
Aerate the greenhouses
From Sowing/Planting to Harvest
Limit irrigations and avoid waterlogging
From Sowing/Planting to Harvest
Use less susceptible varieties
Sowing/Planting
Use mulching and higher soil beds
From Sowing/Planting to Harvest
Carry out soil disinfestation (where it is possible).
Pre-season
Avoid plant wounding
From Sowing/Planting to Harvest
Avoid excess nitrogen fertilizer
Pre-season
Crop rotation
Pre-season

Control

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)
Bacillus amyloliquefaciens subsp. plantarum D747
Microbiological fungicide
6
(Amylo-X) Dosage: 2,5 Kg/ha
Pythium oligandrum Strain M1
Microbiological fungicide
4 (per crop cycle)
(POLYVERSUM®) Dosage: 100-300g/ha
Coniothyrium minitans strain CON/M/91-08
Microbiological fungicide
To be applied from the moment sclerots are present in the soil
1 (per crop cycle)
(Lalstop Contans WG), Dosage: 2 - 4 kg/ha
Bacillus subtilis strain QST 713
Microbiological fungicide
From BBCH 13 to BBCH 49
1
(SERENADE® ASO) Dosage: 8 L/ha
Bacillus subtilis strain MBI 600
Microbiological fungicide
6
Serifel, 0,5 kg/ha
Bacillus amyloliquefaciens FZB24
Microbiological fungicide
12
Taegro, 0,37 lg/ha

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)
See Phytoweb (link in sources) for the most up to date information on chemical products
Trifloxystrobin
Synthetic fungicide
BBCH 13 -49
2
(LUNA® SENSATION) Dosage: 0,8 L/ha
QoI-fungicides (Quinone outside Inhibitors)
Boscalid
Synthetic fungicide
2
(SIGNUM®) Dosage: 1,5 kg/ha
SDHI (Succinatedehydrogenase inhibitors)
Fluopyram
Synthetic fungicide
BBCH 13 -49
2
(LUNA® SENSATION) Dosage: 0,8 L/ha
SDHI (Succinatedehydrogenase inhibitors)
Medium to high risk. (7)
Fluxapyroxad
Synthetic fungicide
BBCH 19-41
1
(DAGONIS®) Dosage: 2 L/ha
SDHI (Succinatedehydrogenase inhibitors)
Difenoconazole
Synthetic fungicide
BBCH 19-41
1
(DAGONIS®) Dosage: 2 L/ha
DMI-fungicides (DeMethylation Inhibitors) (SBI: Class I)
Isofetamid
Synthetic fungicide
2
Kryor, Dosage: 1 L/ha
SDHI (Succinatedehydrogenase inhibitors)
Piraclostrobin
Synthetic fungicide
2
(SIGNUM®) Dosage: 1,5 kg/ha
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.