Rice Leaf  Folder : Cnaphalocrosis medinalis (Guenee) L

Kannada name :  Yele Suruli Hulu, Yele Madachuva Hulu, Gari Suttuva Hulu

The rice leaf folder is a sporadic pest.

Pest description:

Adult:

• Whitish yellow or golden yellow with three black bands on the forewings, either complete or incomplete.
• Wing span of 13 to 18 mm 

Egg:

• disc-shaped ovoid eggs laid singly

Larva:

• Pale yellowish to green in colour

Pupa:

• The pupa is light brown or bright brown.
• With age, it turns reddish brown.
• It is 6 to 12 mm long.

Period of occurrence: Seedling to Flowering

Extent of yield loss: Before panicle initiation up to 50 % leaf damage do not affect yield, but, damage to the flag leaf can reduce the yield (IRRI).

Damage symptoms:

• Longitudinal white and transparent streaks on leaf blades are created which later giving scorched appearance.
• Folded leaf with larva inside along with excreta
• Sickly appearance of the filed

Transparent streaks	Leaf folding	RLF affected field