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PEST MANAGEMENT DECISION GUIDE: GREEN AND YELLOW LIST

Tea Mosquito bug in Guava and Avocado

Helopeltis antonii Sinhala - Capsid Makuna; Tamil – Nulambu Mooddu Poochchi
Sri Lanka
  • Prune to expose the trees for proper sun light inside the canopy
  • Avoid application of broad spectrum insecticide to conserve natural enemies
  • Practise bagging of fruits at early stage
  • Control weeds to destroy alternative hosts
  • Detect reddish brown adult bugs (6.5 - 8.5mm long) and nymphs in early morning / late evening by using hand nets
  • Look for following symptoms –
  • feeding punctures and discoloured necrotic lesions on shoots and leaves (in Thrips damage entire fruit surface brown with an alligator skin appearance and elongate feeding scars.)
  • corky growth appearance or scab on fruits
  • brown centred black lesions especially near to the main veins of leaves
  • Prune and destroy heavily infested plant parts
  • Collect and destroy adults and nymphs using a sweep net
  • Apply neem seed kernel extract (50g seeds/ lit. of water)
  • Imidacloprid 200g/lSL. Rate of dilution - 10ml / 10 lit. of water
  • Apply only to foliage and avoid during fruiting stage. WHO class II. IRAC MOA 4A; PHI 14 days. Toxic to bees and natural enemies. Avoid applying at flowering period. Contact/ ingestion toxicity to insects. Systemic in plants
AUTHOR(S): A. S. Pushpakumari, Department of Agriculture

CREATED/UPDATED: October 2020
PRODUCED BY: Plantwise

©CAB International. Published under a CC-BY-SA 4.0 licence.