Pale potato cyst nematode
Damage to potatoes. Presence
of the pale potato cyst nematode in potato growing areas preclude the export
of potatoes to international markets due to the restrictions imposed by
many countries against this pest.
penetrate host roots where they establish a feeding site, developing into
cysts. Females range in color from white to yellow, new cysts
are glossy brown in color.
pallida has been found in Canada, as well as countries in
South and Central America. Nematodes are dispersed with soil debris
and plant material contaminated by the cysts and by infected potato tubers.
poor nematode management, crop losses induced by G. pallida range
20-70%. Patches of poor growth may occur generally in the crop,
sometimes with yellowing, wilting or death of foliage. At extremely
high nematode densities, tubers may become infected, resulting in the appearance
of cysts on their surface.
Damage to other crops. Other
species are hosts of G. pallida, including tomato.
pest list information