MINOR INSECT PEST &THEIR MANAGEMENT

1.Whitefly,Aleurolobus barodens

Symptoms of damage:

Yellowing of leaves turn pinkish latter

Gradual drying and presence of sooty mould .

Management:

• Avoid excessive use of nitrogenous fertilizers
• Fenitrothion 50 EC @ 2 lit or moncrotohphos 36 SL @  2 lit /ha

• 2.Scale insect, Melanaspis glomerata
  Symptoms of damage:
  • Dark encrustations on the internode
  
  
  Management:
• Select scale insect free setts
•  Bunds free from weeds
•  Avoid repeated ratoons
• Detrash as per schedule
• Drain excess water
• Avoid water stagnation
• Presoak the setts in 0.1% malathion solution

• 3. Mealy bug: Kiritshenkella sacchari,
  Pink mealy bug: Sacchricoccus sacchari

Symptoms of damage :

• Pinkish, oval insects  found beneath leaf sheath on the nodes
• White mealy coating
• Stunting of main cane and also attack roots

Management:

• Avoid excessive use of nitrogenous fertilizers
• Drain excess water.
• Spray malathion 50 EC@ 1 lit /ha. 

       

4. Aphid, Melanaphis sacchari, M.indosacchari:

Symptoms of damage

• Yellowing of leaves, colonies of aphids in central leaf whorl presence of ants

Detrash as per schedule

• Drain excess water