Agritech Archive
Loading
Agritech ArchiveSkip to main contentAbout this archive
Text size
Crop guidance, searchable

Agritech Archive

Production · Protection · Nutrients · Water
In here
1,513 crop protection pages, pest and disease by crop•98 crops tagged — rice, cotton, sugarcane, mango and more•261 nutrient management pages, deficiency symptoms and correction measures•3,462 data tables preserved from the source pages

Green Scale: Coccus viridis

Guava

Symptoms of damage

Symptoms of damage Nymphs and adults suck the sap from leaves Yellowing of leaves. Identification of pest Nymph: Pale lemon yellow. Adult – green colour, flat and oval shaped soft scale Management Prune and destroy the infested shoots at initial stage of infestation. After two weeks release 20 predator beetles viz., C. montrouzieri beetle per tree. Encourage parasitoids viz., Aneristis sp Coccophgagus cowperi , C. bogoriensis
  • Nymphs and adults suck the sap from leaves
  • Yellowing of leaves.

Identification of pest

  • Nymph: Pale lemon yellow.
  • Adult – green colour, flat and oval shaped soft scale

Management

  • Prune and destroy the infested shoots at initial stage of infestation.
  • After two weeks release 20 predator beetles viz., C. montrouzieri beetle per tree.
  • Encourage parasitoids viz., Aneristis sp Coccophgagus cowperi , C. bogoriensis