Sclerotinia and grey mould

Contributor: Association de Coordination Technique Agricole
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
Limit irrigations and avoid waterlogging
From Sowing/Planting to Harvest
Remove infested plants and residues
From Sowing/Planting to Harvest
Use less susceptible varieties
Sowing/Planting
Carry out soil disinfestation (where it is possible).
Pre-season

Control

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
Coniothyrium minitans strain CON/M/91-08
Microbiological fungicide
To be applied 2 - 3 months before of the Sclerotinia attack
1 (per crop cycle)
(CONTANS® WG) Dosage: In the first 10 cm of soil: 2 - 4 kg/ha in greenhouse and 1 - 2 kg/ha in open field. In the first 20 cm of soil: at 3 - 6 kg/ha greenhouse and 2 - 3 kg/ha in open field.
Bacillus subtilis strain QST 713
Microbiological fungicide
From BBCH 14 to BBCH 49
4
(SERENADE® MAX) Dosage: 2,5 – 4 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)
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)
Fluxapyroxad
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); 1 (With Fluxapyroxad + Difenoconazole)
(DAGONIS®) Dosage: 1,2-2 L/ha
SDHI (Succinate dehydrogenase inhibitors)
Medium to high risk. (7)
Fludioxonil
Synthetic fungicide
Start of treatments since there are favorable conditions for the development of infection. Suspend treatments 14 days before harvest
2
(S W I T C H®) Dosage: 0,6 kg/ha
PP-fungicides (Phenylpyrroles)
Low to medium risk (12)
Isofetamid
Synthetic fungicide
SDHI (Succinate dehydrogenase inhibitors)
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.