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Heterodera goettingiana Liebscher
Nematoda, Tylenchida, Heteroderidae .

Pea root nematode, Pea cyst nematode

Description, Biology, Life Cycle, Damage, Common Names, Images

This species is a cyst nematode. Males are threadlike and about 1.1-1.4 mm long in the adult stage. After fertilization females transform into a cyst measuring 0.5 mm x 0.65 mm on average , each cyst containing 200-600 eggs.

- This nematode develops exclusively on wild and cultivated Leguminosae, including pea, bean, broad bean, lentil as well as on fodder Leguminosae, including spring vetch, lucerne and lupin.

- When pea plants reach a height of 12-15 cm, leaves turn yellow and fall prematurely, the base of stipes become twisted, growth is stopped and plants remain dwarf. Roots are little developed and possess only a reduced number of bacterial nodules; radicles are numerous and bear clusters of cysts. Flower buds abort and yields are poor.

[R]Common Names
DE: Erbsenälchen, Erbsenzystenälchen ES: Heterodera del guisante FR: Nématode du pois IT: Nematode del pisello PT: Nemátodo da ervilha GB: Pea root nematode, Pea cyst nematode