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- Title
Trials of Organophosphorus and Carbamate Seed Dressings against Wheat Bulb Fly Leptohylemyia coarctata in 1966-68.
- Authors
Griffiths, D. C.; Scott, G. C.; Maskell, F. E.; Roberts, P. F.
- Abstract
Seed dressings of organophosphorus and carbamate insecticides, at 0.1 per cent and 0.5 per cent active ingredient to weight of seed, were compared with heptachlor and ethion standards for control of wheat bulb fly during 1966-68. Short rows of treated seeds were sown in autumn on sites infested with wheat bulb fly eggs, and sample plants were examined in spring. The effective new materials, judged by the percentage of damaged shoots and the percentage of plants containing live larvae, were R 42211 (O,O-diethyl O-(2-diethylamino-6-methyl-pyrimidin-4-yl) phosphorothioate), B 77488 (O,O-diethyl phosphorothioate O-ester with phenylglyoxylonitrile oxime), B 80833 (O-methyl O-3,4-dichlorophenyl methyl phosphonothionate), 'Dursban' (O,O-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate) and bromophos-ethyl. However, both doses of 'Dursban' and bromophos-ethyl. and the larger dose of B 80833 damaged young seedlings. There was only slight damage with the large dose of B 77488 and none with R 42211, so these two compounds were the most promising new materials tested.
- Subjects
INSECTICIDES; WHEAT bulb fly; ORGANOPHOSPHORUS compounds; CARBAMATES; PLANT protection
- Publication
Plant Pathology, 1969, Vol 18, Issue 1, p34
- ISSN
0032-0862
- Publication type
Article
- DOI
10.1111/j.1365-3059.1969.tb00460.x