본 연구에서는 배추에 발생하는 파밤나방에 대하여 멀티콥터를 이용한 무인항공용 방제약제의 약효 및 약해를 조사하였다. 약해는 배추와 7개 주변작물에 대하여 시험대상 약제를 기준량과 배량으로 처리하여 살충 효과를 조사하였다. 배추 포장에 스피네토람 액상수화제(16배)와 메톡시페노자이드,설폭사플로르 액상수화제(16배)를 살포하였고, 감수지를 이용하여 살포 약제의 낙하입자를 측정하고 피복도를 조사하였다. 두 가지 약제 모두 배추의 파밤나방에 대하여 97% 이상의 우수한 살충 효과를 보였다. 기준량 및 배량에서 배추와 7개 주변작물에 약해가 발생하지 않았다. 낙하입자 분석결과 바람 세기의 차이에 따라 낙하입자의 균일도가 다른 양상을 보였다.

We investigated the control efficacy and phytotoxicity of unmanned aerial vehicle–applied pesticides against the insect Spodoptera exigua, a major emerging pest in Chinese cabbage. Phytotoxicity was investigated in cabbage and 7 crops cultivated in the perconducted on 8 surrounding crops including Chinese cabbage at 1 to 2 times the recommended pesticide dosage. We treated cabbage fields with spinetoram suspension concentrate (16×), methoxyfenozide, sulfoxaflor suspension concentrate (16×). Then, we used water-sensitive paper to measure the distribution pattern of falling pesticide particles and the degree of coverage. Two of the pesticides showed 97% control efficacy, however, control efficacy might differ in resistant populations. Phytotoxicity was not observed in Chinese cabbage and the 7 surrounding crops treated with 1 to 2 times the recommended pesticide dosage. Analysis of the distribution pattern of falling pesticide particles revealed that breeze caused particle diffusion. Thus, wind is an important factor affecting the uniform treatment and diffusion of multicopter-applied pesticides. It follows that setting optimal conditions is necessary for effective control and treatment.

ABSTRACT
재료 및 방법
    시험포장
    시험곤충
    시험약제
    멀티콥터
    통계처리
결과 및 고찰
Literature Cited

• 박부용(국립농업과학원 농산물안전성부 작물보호과) | Bueyong Park (Crop Protection Division, Department of Agri-Food Safety, National Institute of Agricultural Sciences)
• 이상구(국립농업과학원 농산물안전성부 작물보호과) | Sang-Ku Lee (Crop Protection Division, Department of Agri-Food Safety, National Institute of Agricultural Sciences)
• 정인홍(국립농업과학원 농산물안전성부 작물보호과) | In-Hong Jeong (Crop Protection Division, Department of Agri-Food Safety, National Institute of Agricultural Sciences)
• 박세근(국립농업과학원 농산물안전성부 작물보호과) | Se-Keun Park (Crop Protection Division, Department of Agri-Food Safety, National Institute of Agricultural Sciences)
• 이상범(국립농업과학원 농산물안전성부 농자재평가과) | Sang-Bum Lee (Agromaterial Assessment Division, Department of Agri-Food Safety, National Institute of Agricultural Sciences)
• 김길하(충북대학교 농업생명환경대학 식물의학과) | Gil-Hah Kim (Department of Plant Medicine, College of Agriculture, Life and Environment Sciences, Chungbuk National University) Corresponding author