Sclerotinia and grey mould

Contributor: Institut de Recerca i Tecnologia Agroalimentaries
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 greenhouse
From Sowing/Planting to Harvest
Use less susceptible varieties
Sowing/Planting
Crop rotation
Pre-season

Monitoring

Solution
Observation: presence/absence
Favorable weather conditions

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
From BBCH 14 to BBCH 49
6
(Amylo-X) Dosage: 1,5-2,5 Kg/ha
Pythium oligandrum Strain M1
Microbiological fungicide
From BBCH 10 to BBCH 51
4 (per crop cycle)
(POLYVERSUM®) Dosage: 100-300g/ha
Trichoderma asperellum (CEPA T34)
Microbiological fungicide
Coniothyrium minitans
Microbiological fungicide
Only for Sclerotinia. Applied in the soil before planting or transplanting
1
(LALSTOP CONTANS WG® )Dosage: 2 - 4 kg/ha.
Bacillus subtilis strain IAB/BS03)
Microbiological fungicide
Only for Botrytis spp. BBCH 12 -49
5
(FUNGISEI® ) Dosage: 1 - 3 l/Ha
Bacillus subtilis strain QST 713
Microbiological fungicide
From BBCH 13 to BBCH 49
1-6
(SERENADE ASO®) Dosage: 8 l/ha
Trichoderma asperellum & Trichoderma gamsii
Microbiological fungicide
Various trademarks
Trichoderma asperellum (strain T25) & Trichoderma atroviride (strain T11)
Microbiological fungicide
1-5
(TUSAL® ) Dosage: 0,5 - 1 Kg/ha
Trichoderma atroviride (strain SC1)
Microbiological fungicide
BBCH 21 - 89
8
(VINTEC® ) Dosage: 0,025 - 0,15 Kg/ha
Trichoderma atroviride (strain I-1237)
Microbiological fungicide
Only for Sclerotinia. BBCH 0 - 15
1
(TRI-SOIL® ) Dosage: 2,5 - 5 Kg /ha
Trichoderma harzianum rifai (strain T-22)
Microbiological fungicide
1
(TRIANUM-G) Dosage: 10 - 15 kg/ha
Clonostachys rosea strain J1446 (Gliocladium catenulatum, strain J1446)
Microbiological fungicide
BBCH 10 - 15. Only for Botrytis spp.
1
(LALSTOP G46 WG® ) Dosage: 1,5 - 2,5 Kg/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)
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
Difenoconazole
Synthetic fungicide
1 (With Fluxapyroxad + Difenoconazole). Only for Sclerotinia spp.
(DAGONIS®) Dosage: 1,2-2 L/ha
DMI-fungicides (DeMethylation Inhibitors) (SBI: Class I)
Medium risk (3)
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.