Grey mold

Contributor: Institut de Recerca i Tecnologia Agroalimentaries
Date Compiled: 2024
Creative Commons "Attribution-Share Alike"
Botrytis cinerea (grey mould-rot); Symptoms on tomato stem (Solanum lycopersicum). 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 drip irrigation
From Sowing/Planting to Harvest

Monitoring

Solution
Observation: presence/absence

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)
Fenhexamide
Synthetic fungicide
Start of treatments since there are favorable conditions for the development of infection. Suspend treatments 3 days before harvest
2 (Same mechanism of action, limit the number of interventions between the two products to 2)
(TELDOR PLUS) Dosage: 1-1,5 L/ha.
KRI fungicides (Ketoreductase inhibitors) (SBI: Class III)
Low to medium risk. (17)
Pyrimethanil
Synthetic fungicide
Start of treatments since there are favorable conditions for the development of infection. Suspend treatments 3 days before harvest
2
(SCALA®) Dosage: 2 L/ha.
AP - fungicides (Anilinopyrimidines)
Medium risk. (9)
Cyprodinil
Synthetic fungicide
Start of treatments since there are favorable conditions for the development of infection. Suspend treatments 7 days before harvest
2
(S W I T C H®) Dosage: 0,8 Kg/ha.
PP-fungicides (Phenylpyrroles)
Medium risk. (9)
Pyraclostrobin
Synthetic fungicide
Start of treatments since there are favorable conditions for the development of infection. Suspend treatments 7 days before harvest
3 (Between Fenamidone, Pyraclostrobin, Tryfloxistrobin and Azoxystrobin)
(CABRIO® TOP) Dosage: 1,5-2 L/ha.
QoI-fungicides (Quinone outside inhibitors)
High risk (11)
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.