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PEST MANAGEMENT DECISION GUIDE: GREEN AND YELLOW LIST

Root Knot Nematodes on Leafy Vegetables

Meloidogyne spp. Sinhala –“Moolagatithi Watapanuwa”; Tamil-“Ilai marakkarikalil ver mudichchu vilanku pulu”
Sri Lanka
  • Choose a site with no history of the pest
  • Use nematode-free planting materials
  • Use nematode free tools and equipment
  • Deep plough during land preparation and expose to sunlight
  • Use raised beds for planting
  • Observe regularly the development of patches of yellowing plants with stunted growth
  • Check infested plants for root knots
  • Remove and burn infected plants
  • Always wear personal protective equipment while handling pesticides. Do not eat, smoke or drink while spraying pesticides. Read the manufacturer’s instructions carefully before handling pesticides.
  • Do not repeat pesticides with same mode of action
  • WHO Class II – Moderately hazardous
  • IRAC – Insecticide Resistant Action Committee
  • Abamectin (20% SC). Rate of dilution – 3.75 ml in 5 lit water for 10 sq.m
  • WHO class II. IRAC MOA 6. Apply as a soil drench only in affected areas. Apply at planting Repeat after each harvest. Toxic to predatory mites, flower Bugs, parasitoids, bees and fish
  • Fluopyram 400SC. Rate of dilution – 1.25ml in 5 lit of water for 10 sq.m
  • WHO class U. Apply at planting. Apply as a soil drench only in affected areas. Repeat after six months
AUTHOR(S): K.M.D.W.P. Nishantha and J.P. Marasinghe (Department of Agriculture

CREATED/UPDATED: August 2018/August 2020
PRODUCED BY: Plantwise

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