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- Copper-based fungicides as possible alternatives to organomercury for the control of bunt (Tilletia caries) in wheat
Copper-based fungicides as possible alternatives to organomercury for the control of bunt (Tilletia caries) in wheat
Summary
Sector:
Cereals & Oilseeds
Project code:
PR89
Date:
01 February 1993 - 30 June 1993
Funders:
AHDB Cereals & Oilseeds.
AHDB sector cost:
£1650 From HGCA (Project no. 0085/1/91)
Project leader:
D J Yarham ADAS Cambridge
Downloads
project_report_89About this project
Abstract
Copper carbonate and copper oxychloride were used as seed treatments for the control of wheat bunt. In trials carried out in 1991/2 and 1992/3 no evidence of phytotoxicity was found with either copper carbonate or copper oxychloride. Bunt levels were assessed in the 1992/3 trial only. Copper oxychloride, applied as Cuprokylt L at 3.75 l/tonne of seed gave a significant reduction in the level of bunt recorded. Copper carbonate dust (at 2kg/tonne) or Maneb Flowable (2 litres/tonne) gave a less effective control of the disease. Organomercury (as Panogen M at l litre/tonne) gave 100% control.
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