S. Tamura, T. Jojima, K. Kawakubo
Apr 1, 1966
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0
Influential Citations
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Journal
Agricultural and biological chemistry
Abstract
Sir: During the course of our screening tests to get new potent herbicides, we found out through the petri dish method that some phenoxypyridazines such as 3-chloro-6-phe noxypyridazine (I) and 3-chloro-6-(2,6-di chlorophenoxy)pyridazine (II) showed the strongest pre-emergent herbicidal activity among more than a hundred pyridazine derivatives tested.1,2) Recently we noticed, however, that in the submerged pot test, the condition of which bears close resemblance to that of the paddy field, the herbicidal activity of 3-phenoxypyridazine (III) containing no substituent on its pyridazine and benzene rings was far superior to those of other phenoxypyridazines. In this paper we wish to report the efficiency of this compound as a selective herbicide.