3. IDENTIFICATION
EGG:
Eggs are white when laid after turns into dark gray just before hatching.
LARVAE:
Larvae are creamy white with four longitudinal
reddish brown strips on the body
ADULT:
Adult are brown with seven black spots outer margin of fore wing .
Hindwings are white in color.
5. Life cycle
• Eggs are lays in cluster form 100-300 on upper surface of leaf.
• Eggs Hatching 1 week
• Larvae 4 week
• Pupae 2 week
• Adult 1 week
• 2-3 generations per year
• Larvae over-winter in stubbles
6. DAMAGE
The young larvae enter the top portion of canes through a hole from node.
There they feed by making upward spiral galleries. In the beginning ,its attack
is in the patches in the field and later on it spread to the entire field where
the canes dry up.
The attacked node portions of the canes break
even by slight disturbance; by air, animal etc.
Sugar contents of the canes are also reduced.
7. CONTROL
Destruction of stubbles.
By cutting the attacked portion of the canes.
No ratooning of crop.
Destruction of alternate host plants, especially sarkanda.
8. Conti…
Light traps are used to attract the adult moths.
When seed bed prepared deep ploughing should be where sugarcane is
following sugarcane.
Biocontrol agents are used (Trichogramma spp.)
Application of carbofuran G 10-15 kg/acre .
Furadon 16kg/acre or Diazinon g 10-15 kg/acre.