Comprehensive Pest Management Techniques of Organic Cultivation Sweet Persimmon Orchards
2017
Choi, D.S., Jeonnam Agricultural Research and Extension Services, Naju, Republic of Korea | Ma, K.C., Jeonnam Agricultural Research and Extension Services, Naju, Republic of Korea | Ko, S.J., Jeonnam Agricultural Research and Extension Services, Naju, Republic of Korea | Kim, H.J., Jeonnam Agricultural Research and Extension Services, Naju, Republic of Korea | Lee, J.H., Jeonnam Agricultural Research and Extension Services, Naju, Republic of Korea
This study was carried out for three years from 2013 to 2015 to investigate the actual condition of pest control of domestic persimmon organically cultivated farmers, to select environment - friendly pest control materials for major pests, and to conduct field test of established control system. The main cultivated cultivar of the reader farmer of organic cultivation was Buyou and sprayed organic agricultural material 9~17 times per year for pest control. The most harmful pests were anthracnose, bugs, persimmon fruit worm, and scales, etc. The control materials used were organic lime sulfur mixture, red clay sulfur, emulsifier, bordeaux solution, and self-made plant extracts using garlic, ginkgo nut and pine tree. The effective materials for controlling anthrax were lime sulfur mixture and red clay sulfur. Garlic oil + citronella emulsion, shrubby sophora seed extract + tea extract was effective to control Riptortus clavatus and Euproctis subflava. When installed 60 ea per 10a of mating disruption trap in a sweet orchard, the fruit setting rate was improved by 30%. The results of field test of control system to control 10 times a year in organically grown persimmons were able to harvest fruit of 70.7%. However, since any kinds of pesticides can not be sprayed during the harvest season in September and October, the damaged by bugs did not decreased, and further research is needed.
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