BLIGHT-CONTROLLING AGENT FOR JAPANESE TURF (ZOISIA JAPONICA)

摘要

PURPOSE:To provide a blight-controlling agent capable of safely and effectively controlling blights such as spring patch and large patch of Japanese turf (Zoisia japonica) which are serious problems especially in golf links. CONSTITUTION:Chitosan is dissolved in an organic acid solution and dehydrated. The obtained water-soluble chitosan powder is diluted with water and applied. When the blight of the turf is serious, it is effective to use a low-molecular chitosan having a molecular weight of 100,000 as a raw material and, in the case of blight-prevention or control of the turf of healthy state, the use of an agent prepared from a high-molecular chitosan having a molecular weight of =100,000 is effective.