The physical control effects of brown rot (Phytophthora palmivora & P. nicotianae) by utilization of agricultural mulch sheets in Citrus unshiu

Abstract

The effects of utilization of agricultural mulch sheets against brown rot on Citrus unshiu were examined in this study. This disease is caused by Phytophthora palmivora and P. nicotianae which were observed during two cultural seasons from 2016 to 2017. The difference in the number of diseased fruits in mulching cultivation areas and open cultivation areas was surveyed. As a result, it was revealed that utilization of agricultural mulch sheets is effective to control the disease.