Wheat Curl Mite Reference Page
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Wheat Curl Mite Reference Page
Common Name: Wheat Curl
Mite
Scientific Name:
Aceria tosichella
Wheat
Pest description and crop damage
Tiny eriophyid mite, not visible to the naked eye, causes proliferation of florets and distortion of wheat heads. The pest is a vector of wheat streak mosaic. Late-planted spring and early-planted fall grains are susceptible to damage.
Management—chemical control
| Corn (Zea mays) -- High Plains Disease |
| See Also: Wheat -- High Plains Disease |
| Hosts: Dent and sweet corn. Wheat, barley, yellow and green foxtail, and witch grass may be sources of the virus. |
| Cause: This disease is also referred to as High plains tenui virus (HPTV) or High plains virus (HPV) disease. In the western states, it first was confirmed in Idaho in 1993, in Utah in 1994, and in Washington in 1998. Both dent and sweet corn cultivars are affected. High plains disease is transmitted by the wheat curl mite (Aceria tosichella), the same vector that transmits wheat streak mosaic and wheat spot mosaic. |
| Symptoms : Infected plants are stunted and yellowish. Mosaic symptoms usually are evident in the whorl and on older leaves. One or more yellowish or reddish purple bands about 0.25 to 0.5 inch wide running parallel to the veins frequently are observed on midsize to fully developed leaves. Later in season, chlorotic bands turn tan as tissue dies. Diseased plants may also have stunted or weakened root systems. |
Cultural control :
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Source: 2003 PNW Insect and Disease Management Handbook
- Integrated Pest Management Information:
High Plains Disease:
A New Disease Attacking Corn and Other Cereals in Idaho
High Plains Disease: U of Idaho CIS 1038
Image of Wheat Curl Mites
May 27, 2003-jn