Banana scab moth
Nacoleia octasema
The moth is small (25 mm wingspan) tan to light brown with small black spots on the wings.
Damage: Major and frequent.
Larval feeding causes superficial scarring on young fruit. Damaged areas form a black callous, rendering the fruit unmarketable. Feeding is generally confined to the curve of the fruit adjacent to the bunch stalk and between the fingers. Damage ceases after the hand lifts. Mature larvae can be found under the bracts enclosing the male flower or 'bell'.
This pest is most active during the hot wet summer months but sudden outbreaks can occur throughout the year in some localities. Damage occurs progressively as the hands lift and increases in severity towards the lower hands.
Pesticides
Chlorban 500 EC
intensity: ★★★
Cyren 500 EC
intensity: ★★★
FMC Chlorpyrifos 500
intensity: ★★★
Lancer 750 DF
intensity: ★★★
Lancer 970
intensity: ★★★
Talstar 80 SC
intensity: ★★★
Bifentin 100 SC
intensity: N/A
Chlorpos 500 EC
intensity: N/A
Conquest Chlorpyrifos 500
intensity: N/A
Lorsban 500 EC
intensity: N/A
Orthene Xtra
intensity: N/A
Ribbon
intensity: N/A
Strike-Out 500 EC
intensity: N/A
Strike-Out 500 WP
intensity: N/A
Submarine 970 SG
intensity: N/A
SuSCon Ribbon
intensity: N/A