特产研究
特產研究
특산연구
SPECIAL WILD ECONOMIC ANIMAL AND PLANT RESEARCH
2015年
2期
15-17,60
,共4页
薇菜%白粉病%生物农药
薇菜%白粉病%生物農藥
미채%백분병%생물농약
Osmnda japonica%powdery mildew%biopesticide
采用速净、枯草芽孢杆菌、蛇床子素、哈赤木霉等4种生物农药，分别于展叶期、生长盛期和停止生长期3次给药，对薇菜白粉病进行防治试验。结果表明，4种生物农药对薇菜白粉病均有不同程度的抑制作用，其中，哈赤木霉处理发病率最低，速净处理感病指数最低。经4种药剂处理后，从发病率来看，新蔸的发病率均低于老蔸；从感病指数来看，蛇床子素与枯草芽孢杆菌对新蔸防治效果好，速净与哈赤木霉对老蔸防治效果好。
採用速淨、枯草芽孢桿菌、蛇床子素、哈赤木黴等4種生物農藥，分彆于展葉期、生長盛期和停止生長期3次給藥，對薇菜白粉病進行防治試驗。結果錶明，4種生物農藥對薇菜白粉病均有不同程度的抑製作用，其中，哈赤木黴處理髮病率最低，速淨處理感病指數最低。經4種藥劑處理後，從髮病率來看，新蔸的髮病率均低于老蔸；從感病指數來看，蛇床子素與枯草芽孢桿菌對新蔸防治效果好，速淨與哈赤木黴對老蔸防治效果好。
채용속정、고초아포간균、사상자소、합적목매등4충생물농약，분별우전협기、생장성기화정지생장기3차급약，대미채백분병진행방치시험。결과표명，4충생물농약대미채백분병균유불동정도적억제작용，기중，합적목매처리발병솔최저，속정처리감병지수최저。경4충약제처리후，종발병솔래간，신두적발병솔균저우로두；종감병지수래간，사상자소여고초아포간균대신두방치효과호，속정여합적목매대로두방치효과호。
In order to investigate the effects of biopesticide against powdery mildew in Osmnda japonica ,four biopesticides of sujing ,brevibac-terium ,osthole and tuichoderma harzianum were used during the periods of leaf expending ,rapid growing and stop growing .The results demon-strated that all of the four biopesticides showed variously inhibitory effects on powdery mildew of Osmnda japonica .Among them ,the lowest inci-dence was observed with tuichoderma harzianum treatment;the lowest infection index was examined by sujing treatment .Under the treatment of the four biopesticides ,old plants showed the lower infection rates ,but higher infection indexes than that of young palnts .
