Study on the farmers' activity and occurrence of rice planthoppers toward pest control in Southeast Asia

2017 Fiscal Year Final Research Report

• Project/Area Number: 16H07433
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Environmental agriculture(including landscape science)
• Research Institution: Japan International Research Center for Agricultural Sciences
• Principal Investigator: Matsukawa Mizuki 国立研究開発法人国際農林水産業研究センター, 生産環境・畜産領域, 任期付研究員 (50782637)
• Project Period (FY): 2016-08-26 – 2018-03-31
• Keywords: 東南アジア / 殺虫剤 / 農家 / 稲作 / トビイロウンカ

Outline of Final Research Achievements

The relation between rice cultivation activities by farmers such as insecticide and fertilizer use and densities of insect pests and its natural enemies in the farmers' fields were clarified in small scale area in Cambodia and Vietnam, where is large rice cultivation area in Southeast Asia. The farmers tended to spray insecticide whenever they found insects in their fields, and the chemical compound were selected by retailers. There is no relation between the number of applying insecticide and density of pests and yields in the fields, indicating that it was not necessary to spray as farmers did. It will be required to forecast the insect pest densities to decide the timing of spraying and ingredient to increase the effectiveness of using insecticide in the fields.

Free Research Field

植物保護学