Sample perineal patterns of Meloidogyne javanica. The
double lateral lines are characteristic.
Body shapes of immature and mature females.
Males of Meloidogyne javanica are vermiform and
1 mm to 1.5 mm long.
The body rotates through a characteristic half twist
along its length.
There is no bursa.
Males probably do not feed and usually have no
reproductive function. They may develop in larger numbers under
Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:
Warm regions of the world.
Predominant root-knot species in central Africa.
Species is often dominant at higher altitudes in warm climates..
C-rated pests in California.
Feeding site establishment and development
typical of genus.
Sedentary endoparasite of plant roots.
Over 770 species of host plants.
Minimum, optimum, and maximum temperatures recorded for
life processes of M.
This species is the most serious pest of crops in central Africa (Daulton
& Curtis, 1964).
Interactions between M. javanica and other pathogens can occur.
Soil fumigants in higher value crops.
rotation can be effective, but may be difficult to find non-hosts of
Hot water dips of planting material (for example, potatoes at 46 C for 2
There is less plant resistance to attack by this species
than for M. incognita.
In tobacco fields in North Carolina, the predominant Meloidogyne
species was M. incognita
until introduction of cultivars with resistance to that species.
Subsequently there has been a shift to M. javanica and M.
arenaria, which now predominate in tobacco fields (and for which
resistance is not available).
The Mi gene of tomato confers resistance to several species of root-knot
nematode, including M. javanica, M. incognita and
Cultivars of carrot derived from
Brasilia carry single gene resistance to M. javanica. The gene does
not confer resistance to M. incognita; that had to be provided from other
Host Plant Resistance, Non-hosts
Daulton and Curtis 1964