Australia

Yellow sigatoka leaf spot (Mycosphaerella, banana leaf spot)

Mycosphaerella musicola

The earliest symptom is a light-green, narrow speck about 1 mm in length on the upper surface of the leaf. The speck develops into a streak several millimetres long and 1 mm or less in width running parallel to the leaf veins. The streak elongates and expands laterally to become elliptical in shape and turns rusty red. A water-soaked halo forms around the lesion when the leaf is turgid. This is best seen in the early morning when dew is present on the leaf. This infiltrated tissue quickly turns brown and a young spot is formed. The dark-brown centre of the spot later shrinks and appears sunken and the halo turns a darker brown. The sunken area becomes grey and the halo darker brown forming a well-defined ring around the mature spot, which remains distinct even after the leaf tissue has died. On leaves of young plants, individual spots tend to be larger and more spherical. Mature spots are normally 4-12 mm in length.

Pesticides
Aprisco 900 WG
intensity: ★★★
Arysta LifeScience Tebcon 430 SC
intensity: ★★★
Bravo
intensity: ★★★
Bravo Weather Stik
intensity: ★★★
Bulls-eye
intensity: ★★★
Cabrio
intensity: ★★★
Cherokee 900
intensity: ★★★
Conan 500
intensity: ★★★
Conan 720 SC
intensity: ★★★
Custodia 320 SC
intensity: ★★★
Detour 250 EC
intensity: ★★★
Dithane Rainshield Neo Tec
intensity: ★★★
Divino 250 EC
intensity: ★★★
Flint 500 SC
intensity: ★★★
Flint 500 WG
intensity: ★★★
FMC Chlorothalonil 720
intensity: ★★★
FMC Chlorothalonil Bond 720
intensity: ★★★
FMC Propiconazole 250
intensity: ★★★
FMC Propiconazole 550
intensity: ★★★
Folicur 430 SC
intensity: ★★★
Launch
intensity: ★★★
Luna Privilege
intensity: ★★★
Mancoflo 420 SC
intensity: ★★★
Manzate DF
intensity: ★★★
Opus 75
intensity: ★★★
Orius 430 SC
intensity: ★★★
Penncozeb 750 DF
intensity: ★★★
Polyram DF
intensity: ★★★
Predict 600 SC
intensity: ★★★
Propeller 250
intensity: ★★★
PropiMax
intensity: ★★★
Rotam Aprisco
intensity: ★★★
Rotam Proten 250 EC
intensity: ★★★
Rotam Toledo 430SC
intensity: ★★★
Rotam Winner Mancozeb WP
intensity: ★★★
Score Foliar
intensity: ★★★
Siganex 600 SC
intensity: ★★★
Soprano
intensity: ★★★
Tebby 430
intensity: ★★★
Tilt 250 EC
intensity: ★★★
Tilt 250 EC Systemic
intensity: ★★★
Unizeb Disperss 750 DF
intensity: ★★★
Zolo 430 SC
intensity: ★★★
Ace
intensity: N/A
Arysta LifeScience Mancozeb 750 WG
intensity: N/A
Arysta LifeScience Procon 250 EC
intensity: N/A
Barrack 720
intensity: N/A
Barrack Betterstick
intensity: N/A
Chlornil 720 SC
intensity: N/A
Chloronil Pro
intensity: N/A
Chlorothalonil
intensity: N/A
Clash Dry 900 WG
intensity: N/A
Clash Storm Guard 720 SC
intensity: N/A
Echo 720
intensity: N/A
Emperor
intensity: N/A
Indar
intensity: N/A
Laguna 430
intensity: N/A
Laguna Xtreme 800 WG
intensity: N/A
Liquicop
intensity: N/A
Manco 750 WG
intensity: N/A
Mancoflo
intensity: N/A
Mankocide DF
intensity: N/A
Manzeb
intensity: N/A
Pacific Echo 500 SC
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
Slipstream 250EC
intensity: N/A
Stingray 430
intensity: N/A
Tebucon 430 SC
intensity: N/A
Tyrant 500
intensity: N/A