Crops
Symptoms of Root Knot Nematodes on Lettuce
- Organs attacked :
| Roots |
Gradually browning white galls, their sizes may vary depending on the species of Meloidogyne .
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Swellings more or less tortuous and extended along the roots.
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Leaf chlorosis and leaf wilt occurring during the hottest hours of the day.
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Reduced plant development and fruit size.
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Distribution of diseased plants in foci
- Signs : mature females evidenced by making a cross section in the galls.
- Possible confusion : very specific root symptoms, beware of legumes not to confuse galls with nodules.
- Production areas affected :
| Guyana |
- Meloidogyne spp. reported on lettuce :
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