- The burrowing nematode cause necrotic lesions on white feeder roots resulting in yellowing of leaves which subsequently fall off.
- Feeder roots rot and vines wilt during summer season. Affected vines show slow decline.
- In the case of root knot nematode the most characteristic symptom is the formation of knots or galls on the roots.
- Spherical elongated galls which vary in size from very small to very large appear on the roots.
- In advanced stages the galled tissues are invaded by pathogenic and saprophytic microorganisms resulting in decay of roots.
- Due to nematode infestation the plants show unthrifty development and stunted growth if the infestation is severe.
- The leaves of the infested plants turn yellowish green to yellow and droop.
- Affected vines show slow decline which may be confused with that of nutrient deficiency or water scarcity.
- Pepper plants are subjected to infestation by root knot nematode or burrowing nematode either jointly or separately.
Observe the roots for the presence of knots or lesions. Send sample to laboratory for confirmation if necessary.