Preliminary Study on Controlling Melon Powdery Mildew by Bio-control Agent TJ
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.
biological controlpowdery mildewfield trials of pesticide
NETL
NSTL
万方数据
维普
