Bull. Spec. CORESTA Symposium, Winston-Salem, 1982, p. 62, P03, ISSN.0525-6240
The balance sheet of the twenty-year battle against tobacco blue mold
SOTA, Tobacco Research Center, Nyon, Switzerland
As the fungicides used for blue mold control are registered, the exact amount employed each year is known. During the 1961-1981 period, the change in quantity used was as follows: A rapid decrease until 1970 with a minimum of 5.25 kg am/ha, then a new ...