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2017 Fiscal Year Final Research Report

Insect control for agricultural produces using high electric field

Research Project

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Project/Area Number 16K15013
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Agricultural environmental engineering/Agricultural information engineering
Research InstitutionKyushu University

Principal Investigator

Uchino Toshitaka  九州大学, 農学研究院, 教授 (70134393)

Co-Investigator(Kenkyū-buntansha) 田中 史彦  九州大学, 農学研究院, 准教授 (30284912)
Research Collaborator TSUKAZAKI Morihiro  
Project Period (FY) 2016-04-01 – 2018-03-31
Keywords害虫駆除 / 高電場 / ヒラタコクヌストモドキ / フジコナカイガラムシ / 殺虫 / 忌避
Outline of Final Research Achievements

Red flour beetle (Tribolium castaneum) and Japanese mealybug (Planococcus kuraunhiae) were controlled by using high electric field. A device for red flour beetle consisted of a center bar and concentric cylinder electrodes, for Japanese mealybug parallel plate electrodes. A high voltage of 5 to 20 kV was applied to the electrodes.
A mortality rate of red flour beetle applied to 500 Hz pulsed voltage of 20 kV for 5 days reached 100 %. Germination and vigor rate of brown rice set under the condition for 4 days was same to control, whereas moisture content decreased by 0.3 % and fat acidity increased by 0.4 % in the vicinity of center bar electrode.
The mortality rate of Japanese mealybug lied under sepal of persimmon placed on a plate electrode at -20 kV DC was 96 % after 4 days voltage application. Weight, color, firmness and Brix value of persimmon fruit did not changed when it was exposed to the electric field for 8 h.

Free Research Field

ポストハーベスト工学

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Published: 2019-03-29  

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