Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
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Persistence of Entomopathogenic Nematode, Steinernema carpocapsae GSN1 Strain on Vegetable Leaf in Greenhouses

시설내 엽채류의 잎에서 곤충병원성 선충, Steinernema carpocapsae GSN1 계통의 지속성

Kim, Hyeong-Hwan;Jeon, Heung-Yong;Lee, Dong-Un;Chu, Ho-Ryeol;Jo, Seong-Rae
김형환;전흥용;이동운;추호렬;조성래

  • Published : 20060000
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Abstract

Persistence of the entomopathogenic nematode Steinernema carpocapsae GSN1 strain applied by foliar sprays was evaluated on the leaves of Chinese cabbage, cabbage, and kale in greenhouses. Kinds of vegetables, seedling age, and application time influenced persistence of S. carpocapsae GSN1. More S. carpocapsae GSN1 survived on Chinese cabbage leaf than on cabbage or kale and persisted longer on older leaves than younger leaves. S. carpocapsae GSN1 did not survive for 6 hour at the applications of 08:00 and 14:00 while persisted 12 hour at the application of 18:00 hour. The survial rate of S. carpocapsae GSN1 sprayed 200,000 and 400,000 infective juveniles (Ijs) was 3.5 times higher than 100,000 Ijs. For the Chinese cabbage, the suitable water volume for the application of S. carpocapsae GSN1 was 150 mL per m2, which was better for the survival of nematodes than 300 and 600 mL per m2.

온실에서 배추, 양배추 및 케일의 잎에 곤충병원성 선충 Steinernema carpocapsae GSN1 계통을 살포한 후 지속성을 조사하였다. 엽채류의 종류나 유묘의 생육일수 및 처리시간은 S. carpocapsae GSN1의 지속성에 영향을 미쳤다. 배추에 처리한 S. carpocapsae GSN1은 양배추나 케일에 비하여 많은 수가 생존하였다. 그리고 어린 유묘보다 생육이 진행된 유묘에서 더 많은 선충이 생존하였다. S. carpocapsae GSN1을 08:00와 14:00에 처리할 경우 지속성은 6시간을 넘지 못하였으나, 18:00에 처리할 경우 12시간까지 생존하였다. S. carpocapsae GSN1 계통은 m2당 100,00마리 살포에 비하여 200,000마리나 400,000마리를 살포할 경우 생존율이 3.5배 높았다. S. carpocapsae GSN1의 적정 살포 물 양은 배추의 경우 m2당 150mL였으며, 300이나 600mL에 비하여 생존 선충수가 많았다.

Keywords

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