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- Title
NEW OR UNCOMMON PLANT DISEASES AND PESTS.
- Authors
Shaw, M. .W.; White, J. H.
- Abstract
This article discusses the damage to barley by larvae of wheat bulb fly, Leptohylemyia coarctata, associated with couch grass in Scotland and England. In a four-acre barley crop following barley at Forres, Morayshire, Scotland in May 1968, areas of the crop found to be damaged by wheat bulb fly larvae. These areas were also infested with couch grass and the field was ploughed and sown within a period of two weeks. Similar damage occurred in a spring barley crop at Wooler, Northumberland, England in May 1968. A substantial amount of a wild host is probably a sufficient stimulus to initiate egg laying. Where couch grass is a problem its capacity to act as an intermediate host may subsequently give rise to damage. This is only likely to occur in fields ploughed late, thereby permitting larvae to continue development.
- Subjects
SCOTLAND; ENGLAND; BARLEY diseases &; pests; WHEAT bulb fly; PLANT diseases
- Publication
Plant Pathology, 1969, Vol 18, Issue 4, p192
- ISSN
0032-0862
- Publication type
Article
- DOI
10.1111/j.1365-3059.1969.tb00496.x