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- Title
The influence of climatic factors on metoxuron activity on Bromus sterilis L.
- Authors
Blair, A. M.; Richardson, W. G.; West, T. M.
- Abstract
Metoxuron was more active when <em>Bromus sterilis</em> L. (sterile brome) plants were kept under cool (10/6°C day/night) compared with warm (26/16°C) temperatures after spraying. The effect of warmer temperatures required exposure for more than 3 days. Metoxuron activity was unaffected by a cold exposure (0/-2°C or 4/2°C) for a 24-h period shortly before or after spraying. Greater damage occurred when plants were kept in high relative humidity (r.h.) (95/98% r.h. day/night) after spraying than at 75/86% r.h. or at 50/75% r.h. Increasing soil moisture from 11.5 to 21.5 g water 100 g-1 dry soil also resulted in increased metoxuron activity. Metoxuron was less active under severe shading. There was little evidence in these studies that metoxuron activity resulted from foliar uptake. Results are discussed with reference to field reports of metoxuron use against <em>B. sterilis.</em> L.
- Subjects
BROMEGRASSES; FORAGE plants; GRASSES; HERBICIDES; WEED control
- Publication
Weed Research, 1983, Vol 23, Issue 5, p259
- ISSN
0043-1737
- Publication type
Article
- DOI
10.1111/j.1365-3180.1983.tb00548.x