Root-knot nematodes

Featured Photo: 
Other Photos: 
feaured_photo_co: 
A. M. Varela, icipe
Is this a Minor Pest?: 
Yes
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: 
1
Minor Pest Firstcontent: 
141
Pest Type: 
nematodes (Pests)
Other Crops: 
Dolichos
Host Plants: 
Tea