Rust

Puccinia sp.
Contributor: AgriNewTech
Date Compiled: 2024
Creative Commons "Attribution-Share Alike"
Puccinia striiformis f.sp. tritici; Close-up of symptoms of yellow rust (Puccinia striiformis f.sp. tritici) on triticale leaf. The pustules contain yellow to orange-yellow urediospores and usually form stripes on the leaves. Image copyright: ©Rasbak/via Wikimedia Commons - CC BY-SA 4.0

Prevention

Solution Production stage (if possible with reference to BBCH scale)
Wide crop rotations
Pre-season
Bury previous crop residues
Pre-season
Avoid sprinkler irrigation
From Sowing to Harvest

Monitoring

Solution
Mandatory treatment threshold: appearance of uredosori on the last 2 leaves.

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)
Pyraclostrobin
Synthetic fungicide
From BBCH 20 to BBCH 69
2
(COMET ® 250 EC) Dosage: 0,7-1 L/ha
QOI - outer membrane quinone inhibitors
High risk (11)
Azoxystrobin
Synthetic fungicide
From BBCH 30 to BBCH 69
2
(MIRADOR SC) Dosage: 0,8-1 L/ha
QOI - outer membrane quinone inhibitors
High risk (11)
Metconazole
Synthetic fungicide
From BBCH 20 to BBCH 69
2
(APTRELL®) Dosage: 1L/ha
DMI - demethylation inhibitors - BEI Class I
Medium risk (3)
Difenoconazole
Synthetic fungicide
From BBCH 39 to BBCH 69
2
(TIPTOR ULTRA) Dosage: 1 L/ha
DMI - demethylation inhibitors - BEI Class I
Medium risk (3)
Prochloraz
Synthetic fungicide
From BBCH 30 to BBCH 69
2
(BREK DUO) Dosage: 1,96 L/ha
DMI - demethylation inhibitors - BEI Class I
Medium risk (3)
Tebuconazole
Synthetic fungicide
From BBCH 30 to BBCH 49
2
(FOLICUR WG) Dosage: 1 kg/ha
DMI - demethylation inhibitors - BEI Class I
Medium risk (3)
Mefentrifluconazole
Synthetic fungicide
From BBCH 20 to BBCH 69
2
(REVYCARE) Dosage: 0,75-1,5 L/ha
DMI - demethylation inhibitors - BEI Class I
Medium risk (3)
Prothioconazole
Synthetic fungicide
From BBCH 30 to BBCH 69
2
(PROSARO®) Dosage: 1 L/ha
DMI - demethylation inhibitors - BEI Class I
Medium risk (3)
Bromuconazole
Synthetic fungicide
From BBCH 30 to BBCH 69
2
(NINEVI®) Dosage: 1 L/ha
DMI - demethylation inhibitors - BEI Class I
Medium risk (3)
Tetraconazole
Synthetic fungicide
From BBCH 40 to BBCH 69
2
(EMERALD 40 EW) Dosage: 3 L/ha
DMI - demethylation inhibitors - BEI Class I
Medium risk (3)
Bixafen
Synthetic fungicide
From BBCH 30 to BBCH 50
2
(ASCRA® XPRO) Dosage: 1,2-1,5 L/ha
SDHI - succinate dehydrogenase inhibitors
Medium to high risk (7)
Benzovindiflupyr
Synthetic fungicide
From BBCH 30 to BBCH 69
1
(ELATUS® ERA) Dosage: 1 L/ha
SDHI - succinate dehydrogenase inhibitors
Medium to high risk (7)
Fluxapyroxad
Synthetic fungicide
From BBCH 25 to BBCH 69
2
(PRIAXOR) Dosage: 1-1,5 L/ha
SDHI - succinate dehydrogenase inhibitors
Medium to high risk (7)
Isopyrazam
Synthetic fungicide
From BBCH 30 to BBCH 50
1
(SEGURIS ERA) Dosage: 1 L/ha
SDHI - succinate dehydrogenase inhibitors
Medium to high risk (7)
Fenpropidin
Synthetic fungicide
Amines - IBE-Class II morpholines
Low to medium risk (5)
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.