Root-knot nematodes

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A. M. Varela, icipe
Is this a Minor Pest?
Minor Pest Title

Nematodes (Meloidogyne spp., Pratylenchus brachyurus and Radopholus similis)

Minor Pest Description

In some areas, nematodes reduce yields. Root-knot nematodes (Meloidogyne spp ) can be a problem in nurseries. Infested roots develop knots or galls. They later die and devoid of lateral roots. Affected plants show chlorosis and stunted growth.

Minor Pest What to do.
  • Remove infested tea bushes, remove and replace large amounts of the soil.
  • Use nematode-free planting material.
  • To prevent infestation use plant-bags in the seedbed and use shade tree Indigoferra teismanii (Indigo tree) as a trap plant.
  • Also sow Guatemala grass (Tripsacum laxum) before starting a new plantation to suppress weeds, which could harbour nematodes.
  • Another important non-chemical method of control is the use of resistant or tolerant clones, if available .
  • Incorporation of neem cake into the soil is an effective management measure.
Minor Pest Position
Minor Pest Firstcontent
Pest Type
nematodes (Pests)
Other Crops
Host Plants