Australia

Barley leaf scald

Rhynchosporium secalis

Rhynchosporium secalis is one of the most important diseases of barley, particularly in wet seasons and in high humidity areas.

It is one of the most destructive pathogens of barley worldwide, causing disease which decreases yield by up to 40% and reduces grain quality. Rhynchosporium is a polycyclic disease, with the primary inoculum including conidia produced on crop debris, infected seeds and possibly as yet unidentified ascospores. Secondary disease spread is primarily by splash dispersal of conidia produced on infected leaves, which may be symptomless early in the growing season.

Symptoms first appear as chlorotic, irregular or diamond-shaped lesions and later symptoms are typically blue-grey water-soaked lesions on leaves and leaf sheaths. Mature lesions become pale brown with a dark purple margin. As they grow they merge forming large areas of dead tissue, even destroying the whole plant green leaf area.

Pesticides
Arysta LifeScience Tebcon 430 SC
intensity: ★★★
Bumper
intensity: ★★★
Bumper 625 EC
intensity: ★★★
Cogito
intensity: ★★★
Custodia 320 SC
intensity: ★★★
Detour 250 EC
intensity: ★★★
Flutifol 250 SC
intensity: ★★★
FMC Flutriafol 250
intensity: ★★★
FMC Flutriafol 500
intensity: ★★★
FMC Propiconazole 250
intensity: ★★★
FMC Propiconazole 550
intensity: ★★★
Folicur 430 SC
intensity: ★★★
Imbrex
intensity: ★★★
Impact
intensity: ★★★
Impact Endure
intensity: ★★★
Jubilee 500
intensity: ★★★
Jubilee Loaded
intensity: ★★★
Launch
intensity: ★★★
Opera
intensity: ★★★
Opus 125
intensity: ★★★
Orius 430 SC
intensity: ★★★
Propeller 250
intensity: ★★★
PropiMax
intensity: ★★★
Prosaro 420 SC
intensity: ★★★
Radial
intensity: ★★★
Rotam Proten 250 EC
intensity: ★★★
Rotam Toledo 430SC
intensity: ★★★
Rotriafol 500
intensity: ★★★
Soprano
intensity: ★★★
Systiva Seed Treatment
intensity: ★★★
Tebby 430
intensity: ★★★
Tilt 250 EC
intensity: ★★★
Tilt 250 EC Systemic
intensity: ★★★
Tilt Xtra
intensity: ★★★
Veritas
intensity: ★★★
Zolo 430 SC
intensity: ★★★
Baytan T
intensity: ★
Foliarflo Plus Seed Treatment
intensity: ★
Phoenix C
intensity: ★
Proleaf Plus Seed Treatment
intensity: ★
Proleaf T Seed Treatment
intensity: ★
Accord 125
intensity: N/A
Arrow C
intensity: N/A
Arysta LifeScience Procon 250 EC
intensity: N/A
Bayonet
intensity: N/A
Bayonet Fert 500
intensity: N/A
Emperor
intensity: N/A
Epoxiguard 125
intensity: N/A
Flufol 500 SC
intensity: N/A
Innova Flutriafol 250 In-Furrow + Foliar
intensity: N/A
Intake
intensity: N/A
Intake Combi
intensity: N/A
Intake Hiload Gold
intensity: N/A
Intake Pro
intensity: N/A
Laguna 430
intensity: N/A
Laguna Xtreme 800 WG
intensity: N/A
Maxiflo
intensity: N/A
Prestige 250
intensity: N/A
Prop 500
intensity: N/A
Propicon 250 EC
intensity: N/A
Propicon 550 EC
intensity: N/A
Propicure
intensity: N/A
Quantum Pro Seed Treatment
intensity: N/A
Quantum Seed Treatment
intensity: N/A
Slingshot
intensity: N/A
Slipstream 250EC
intensity: N/A
Stingray 430
intensity: N/A
Tebucon 430 SC
intensity: N/A
Triadimefon 125
intensity: N/A
Tyrant 500
intensity: N/A
Verge 500 SC
intensity: N/A