논 담수 여부에 따른 유기농업자재의 먹노린재 방제 효과

서지정보

ㆍ발행기관 : 한국환경생물학회 ㆍ수록지정보 : 환경생물 / 41권 / 4호
ㆍ저자명 : 이유경, 최낙중, 임주락, 최준열, 서보윤

목차

1. 서 론
2. 재료 및 방법
2.1. 시험 곤충
2.2. 유기농업자재 선발 및 살충 활성 검정
2.3. 담수 여부에 따른 방제 효과 검정
2.4. 통계 분석
3. 결과 및 고찰
3.1. 유기농업자재의 살충 활성 실내 검정
3.2. 담수 여부에 따른 방제 효과 검정
적 요
CRediT authorship contribution statement
Declaration of Competing Interest
사 사
REFERENCES

영어 초록

The insecticidal activities of 27 different commercial products with environmentally friendly organic material (EFOM) against Scotinophara lurida, a major rice pest, were evaluated in the laboratory using spraying methods on plants and insects. Seven plant-derived organic farming materials (EFOM-8, -10, -12, -13, -19, -20, and -26) with high insecticidal effects when sprayed directly on the insect’s body rather than on the plant were selected. In the indoor rice pot test, all 7 EFOMs showed an insecticidal rate of over 73.3% under irrigated conditions. Notably, EFOM-13 and EFOM-20 demonstrated much higher insecticidal rates, ranging from 1.5 to 1.8 times, in irrigated conditions compared to drained conditions. In the semi-paddy field test, EFOM-10 (80% garlic extract), EFOM- 13 (62% neem extract), and EFOM-26 (70% sophora extract+28% ethyl alcohol+2% pyrethrum extract) exhibited a higher control value of 88.9% in the irrigated paddy on the 7th day, surpassing the control values in the drained paddy by 1.4 to 1.9 times. The control value in the irrigated rice paddy field sprayed with EFOM-10 reached 86.2% on the 7th day, which was 1.4 times higher than 61.9% in the drained paddy. Taken together, the findings suggest that direct contact of the insect’s body with sufficient amounts of spray solution and the maintenance of paddy irrigation can enhance the controlling effect of EFOMs. These findings will be valuable in developing an optimal S. luridacontrol strategy for application in rice paddy fields in the near future.

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