04.06.2015 Views

DISEASES OF ROOTS MIGRATORY ECTOPARASITES

DISEASES OF ROOTS MIGRATORY ECTOPARASITES

DISEASES OF ROOTS MIGRATORY ECTOPARASITES

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Helicotylenchus spp. = “spiral” nematodes<br />

Symptoms<br />

-Invades cortex -> lesions developing to root rots<br />

with other pathogens (Fusarium, Rhizoctonia).<br />

-Since banana is propagated vegetatively, infection is<br />

spread by planting infested rhizomes.<br />

-Weakened root systems can cause plants to fall over<br />

in high winds.

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