天津农学院学报
天津農學院學報
천진농학원학보
JOURNAL OF TIANJIN AGRICULTURAL COLLEGE
2012年
1期
27-29
,共3页
耿以工%谷医林%李宁%陈招荣%王远宏
耿以工%穀醫林%李寧%陳招榮%王遠宏
경이공%곡의림%리저%진초영%왕원굉
生物防治%白粉病%田间药效试验
生物防治%白粉病%田間藥效試驗
생물방치%백분병%전간약효시험
biological control%powdery mildew%field trials of pesticide
细菌TJ是一株生防菌株,室内测定显示,其对瓜类白粉病有很好的防治效果。本研究通过田间试验确认:在白粉病的发病初期,使用’玎生防菌剂的300倍稀释液效果最好,300倍稀释液处理14d后对黄瓜和甜瓜白粉病的防效达到最高,分别为90.8%和95.7%,并且在施药后21d仍有86A%和90.4%的防治效果。而发病中后期使用TJ300倍稀释液14d后对两种白粉病的防效为68.2%和67.6%,低于发病初期施药后的防效。
細菌TJ是一株生防菌株,室內測定顯示,其對瓜類白粉病有很好的防治效果。本研究通過田間試驗確認:在白粉病的髮病初期,使用’玎生防菌劑的300倍稀釋液效果最好,300倍稀釋液處理14d後對黃瓜和甜瓜白粉病的防效達到最高,分彆為90.8%和95.7%,併且在施藥後21d仍有86A%和90.4%的防治效果。而髮病中後期使用TJ300倍稀釋液14d後對兩種白粉病的防效為68.2%和67.6%,低于髮病初期施藥後的防效。
세균TJ시일주생방균주,실내측정현시,기대과류백분병유흔호적방치효과。본연구통과전간시험학인:재백분병적발병초기,사용’정생방균제적300배희석액효과최호,300배희석액처리14d후대황과화첨과백분병적방효체도최고,분별위90.8%화95.7%,병차재시약후21d잉유86A%화90.4%적방치효과。이발병중후기사용TJ300배희석액14d후대량충백분병적방효위68.2%화67.6%,저우발병초기시약후적방효。
The bacteria TJ is a biocontrol agent which shows a very good effect on melon powdery mildew in the indoor tests. Field trials of pesticide indicate that biocontrol agent TJ is powerful in controlling melon powdery mildew. Also, the field tests show that the 300-fold TJ fermentation liquid is of best effect against melon powdery mildew in the early growth stage of melon. The 14^th-day control effect against powdery mildew on cucumber and melon is 90.8% and 95.7%, the 21^st-day control effect is 86.4% and 90.4% after applying the agent, respectively. When the powdery mildew is serious in late stage of the melon growth, the control effects are 68.2% and 67.6%, respectively at 14^th-day by 300-fold TJ dilution treatment.