Amongst nematodes infesting passion fruit the root-knot nematodes (Meloidogyne incognita, M. javanica and M. arenaria), are the most serious pests. Characteristic symptoms of infestation by root-knot nematodes are formation of galls or knots on roots, yellowing of leaves, stunting and eventual wilting of the affected plants.
- Rotate with cassava, cereals, maize, Baby corn, sweet corn, sweet potato, onions, cabbages / kale, garlic or fodder grasses (e.g. Sudan grass).
- Use of tolerant rootstocks (e.g. P. caerula).
- Maintain high organic matter (farmyard manure / compost) in the soil.
- Incorporation of neem into planting at transplanting.