THE CONTROL OF FUSARIUM WILT ON CARNATION WITH A STREPTOMYCES PREPARATION
The effect of Streptomyces preparation against Fusarium wilt on carnation was tested both in artificially and naturally infected experiments. The disease control was carried out by dipping the roots of the cuttings in microbe suspension and spraying the peat surface with it after planting and repeating the spray treatment 2 – 3 times during the growing season. These applications prevented the spreading of the disease and increased the yields of carnation. In commercial greenhouse cultivations the wilt of carnation was controlled so effectively that the percentage of severely diseased area decreased to 10 % compared to 30 – 45 % on untreated plants.