Heterodera zeae
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Author(s): Jonathan D. Eisenback, Virginia Polytechnic Institute and State University
Source: IPM Images
Heterodera zeae Koshy, Swarup & Sethi, 1971 - (corn cyst nematode)
The nematode is native to southern Asia and causes stunting of maize. It is recorded since 1981 from North America and since 2005 from southern Europe. Apart from corn, it may also parasitize other Poaceae. It is a semi-endoparasite and feeds on the roots, causing root damage which may result in substantial yield losses.
The cysts apparently survive in the soil for years. Crop-rotation with a non-host plant is recommended. The life cycle may be as short as 2 weeks under warm conditions. The cysts are about 400-500 µm long and light brown in colour. The 2nd stage juveniles are about 400 µm long and 15-20 µm wide at midbody.
| Vernacular names | |
|---|---|
| • English: | corn cyst nematode |
| • Français: | nématode à kystes du maïs |
- Other images of Heterodera zeae (IPM Images - click to enlarge)
external surface of the vulval cone
internal surface of the vulval cone
