全北高冷地 端境期菜蔬團地인 茂朱, 南原, 鎭安, 長水地域의 무우, 배추 栽培圃場에 대한 病害發生, 氣像關係, 媒介진딧물 密度등을 調査하였다. 7월부터 9월까지 旬別로 조사한 結果는 다음과 같다. 發病狀況은 地域的 特異性이 없고 비슷하였다. 배추의 主要病害는 흰빗썩음병, 흰무늬병, 노균병, virus병 검은무늬병 Fusarium에 의한 立枯現象등이고, 무우에서는 바이러스병, 흰녹가루병, 검은빛썩음병, 흰빛썩음병 검은 무늬병, Fusarium에 의한 立枯現象등의 被害가 나타나고 있다. 發病狀況을 時期的으로 보면 8월 20일경이 最高發病期이였다. 무는 總感染率이 27%이고, 그후 점차 감소하였으나, 배추는 20%의 感染狀態가 계속 지속된다. 生長期別 發病狀況은 무우는 肥大期 25%, 收穫期 26% 後半期에 急增한다. 배추는 初期生長期부터 계속적인 發病增加를 나타내여 結球期收穫期20%의 총감염율을 나타낸다. 外國에서 보고된 Fusarium에 의한 立枯現象과 Aphanomyces에 의한 根腐病이 調査地域에서 발병되고 있었다. 氣象環境은 菜蔬生長期間의 平均最高溫度가 25℃정도이나 雨期가 겹치고, 冷凉多濕하여 發病의 誘因的環境이였다. 媒介진딧물의 分布密度는 平暖地보다 낮으며 총진딧물 對比 媒介진딧물은 南原이 73.53%(289/393)로 많고, 茂朱가 18.12%(31/171)로 제일 낮았다. 媒介진딧물중 優占種은 복숭아흑진딧물(Myzus persicae)이였다.
Vegetables including Chinese cabbage and radish have been grown in alpine areas such as Muju, Namweon, Jinan and Jangsu during the shortage period of vegetables. The incidence of various diseases, environmental factors such as temperatures and rainfalls, and aphid populations as virus vector were observed at 10-day intervals from July to September in those areas. Disease incidence showed no significant difference among locations. Major diseases in Chinese cabbage were bacterial soft rot, white spot, downy mildew, mosaic virus, Alternaria leaf spot and Fusarium seedling blight. Major diseases in radish were virus, white rust, black, rot, root rot, leaf spot and Fusarium seedling blight. Disease incidence reached peak on Aug. 20 with 27% infection in radish and with 20% infection in Chinese cabbage during the growing season, and declined thereafter. Percentage of infection in each growth stage show ed 25% at root thickening stage and 26% at the harvest time in radish ; and the head formation stage, 24% at the harvest time. The data indicate that disease incidence in radish increased rapidly at late growing stage and progressively increased in Chinese cabbage. Seedling blight caused by Fusarium sp. and root rot caused by Aphanomyces sp. were also observed in those areas. Cool and wet weather appeared to be favorable for disease incidences during the rainy period of growing season although average temperature was about 25℃. Populations of aphids were lower in the alpine vegetable growing area than that of flat areas. Aphids as virus vectors from total aphids collected were 73.5%or 289 virus vectors/393 total aphids in Namweon and 18.1% or 31 virus vectors/171 total aphids in Muju. The most prerevalent species of aphids was Myzus persicae Sulz.