Evolution of Herbicide Programs in Sugarbeet
- 1 March 1994
- journal article
- symposium
- Published by Cambridge University Press (CUP) in Weed Technology
- Vol. 8 (2) , 338-343
- https://doi.org/10.1017/s0890037x00038896
Abstract
During the early years of herbicide use, the total amount of ai applied per ha increased in attempts to obtain season-long weed control, peaking in the decade of the mid-1970's to mid-1980's. Since then, the chemical load applied for broadleaf weed control has shown a consistent, if not dramatic, decline. A much more significant reduction has occurred in grass weed control. Main reasons for the reduction are a move from PPI and PRE treatments to POST, the development of repeat low-dose herbicide techniques, and the introduction of more active postemergence grass herbicides. In general, this change has been achieved with a concomitant improvement in crop safety. These developments occurred as a coincident benefit in pursuing the target objective of giving growers more convenient and flexible weed control and not as a specific attempt to reduce chemical use. This paper discusses the evolution of weed control programs in the U.K., France, Germany, and the U.S.A. All show a similar trend, though the pace of change has been slower in the U.S.A.Keywords
This publication has 1 reference indexed in Scilit:
- Percentage-Driven Government Mandates for Pesticide Reduction: The Swedish ModelWeed Technology, 1994