Korean journal of applied entomology (한국응용곤충학회지)
- Volume 9 Issue 2
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- Pages.81-84
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- 1970
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- 1225-0171(pISSN)
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- 2287-545X(eISSN)
Studies on the Canker of Apple Tree Caused by Valsa mali $M_{IYABE}$ et $Y_{AMADA}$ (I. Occurrence)
사과나무 부난성 병해(부난병, 동고병, 동부병)에 관한 연구 제1보 발생상황
- Kim Seung Chul (Institute of Plant Environment, The Office of Rural Development) ;
- Won Chang Nam (Institute of Plant Environment, The Office of Rural Development) ;
- Lee Eung Kwon (Institute of Plant Environment, The Office of Rural Development) ;
- Son Jun Su (Kyong Sang Puk Do Provincial Office of Rural Development) ;
- Han Eui Dong (Chung Cheng Puk Do Provincial Office of Rural Development)
- Published : 1970.10.01
Abstract
The occurence of apple canker in the three main apple growing areas including Yesan, Chungju and Taegu was investigated during the four years from 1967 to 1970. According to the survey, about 30 percent of apple plants was infected with canker organisms and more the disease occurred in older plants in comparison with younger ones. Jonathan was said to be highly susceptible among five varieties observed. Main trunks or main branches had more canker lesions than those of twigs or of side branches. The survey showed that application of higher nitrogenous fertilizer without boric acid predisposed to the disease together with sandy soil.
1) 본 보고는 사과나무 부란성병의 발생상황에 대하여 주산지인 충북, 충남, 경북등 3개도에서 1967년부터 1970년까지 4년 간 조사한 것이다. 2) 피해상황은 각지방에서
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