Title: Selective herbicides

Abstract: A process of selectively killing or severely damaging oats growing in cereal crops other than oats by applying to the crop area, in an amount sufficient to kill or severely damage the oats, but insufficient to damage the cereal crop substantially, a 4,4'-bipyridylium diquaternary salt.

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Inventors: Brown, Michael Joseph (Woodley, EN)
Cartwright, David (Reading, EN)
Collins, David John (Ascot, EN)
White, Brian Graham (Crowthorne, EN)

Application Number: 680125
Filing Date: 1976-04-26
Publication_date: 1978-05-16
Assignee: Imperial Chemical Industries Limited (London, EN)
Primary Class(es): 504/250 546/257, 546/258
Other Classes:
US Patent Ref:

2972528	Feb, 1961	Brian et al.	71/94.
3326926	Jun, 1967	Homer	71/94.
3332959	Jul, 1967	Braunholtz	71/94.
3449110	Jun, 1969	Crowdy et al.	71/92.
3671213	Jun, 1972	White	71/92.
3905986	Sep, 1975	Colchester et al.	71/94.
3920443	Nov, 1975	Drewe et al.	71/94.

Other Refs: 991,288

May, 1965	UK

Primary Examiner: Brust, Joseph Paul
Assistant Examiner:
Attorney: Cushman, Darby & Cushman