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- Title
Use of adjuvants to improve control of black-grass (Alopecurus myosuroides Huds.) by diclofop-methyl.
- Authors
Ayres, P.
- Abstract
In pot and field experiments the addition of Ethylan D256 surfactant to spray solutions improved control of black-grass (<em>Alopecurus myosuroides</em> Huds.) by diclofop-methyl. Various other surfactants and oil adjuvants enhanced phytotoxicity but, generally, to a lesser extent. Ethylan D256 had most effect with applications made at early growth stages. Control of older plants was generally poor, whether or not the surfactant was added. Addition of Ethylan D256 had little effect on selectivity between <em>A. myosuroides</em> and cereals from lower than recommended doses of diclofop-methyl, but there was a suggestion of yield reduction from higher doses. Tank mixing with esters of ioxynil and bromoxynil sometimes improved control by diclofop-methyl but in other circumstances either had no effect or reduced phytotoxicity. Applications of diclofop-methyl in 60 or 120 1 ha-1 spray volume were as effective as applications in 240 1 ha-1.
- Subjects
ETHYLANILINE; ANILINE; SURFACE active agents; INACTIVATED oil adjuvant vaccines; PHYTOTOXICITY
- Publication
Weed Research, 1987, Vol 27, Issue 3, p195
- ISSN
0043-1737
- Publication type
Article
- DOI
10.1111/j.1365-3180.1987.tb00754.x