4 results about "Biological pest control" patented technology

The present invention relates to a biological control strain AR156 for preventing and treating root-knot nematodes of greenhouse vegetable, belonging to plant protection technical field. The bacteria is bacillus sp., which is cultivated in PDA culturing liquor under 37 degree and 180rpm, then is centrifuged 10min under 6000rpm. Picking wet bacteria and bacteria storage liquid is prepared into bacteria agent according to 1:40 (g/ml)proportion. The living bacteria concentration is 1*109-1*1012cfu/ml.The effective rate of the bacteria agent amount to 58-75% for preventing root-knot nematodes of cucumber, towel gourd, tomato etc, and yield increase more than 30-50%. The bacteria agent can also treat wilt, epidemic disease and soil hardening. The bacteria agent can be sprayed, composted and irrigated to root.

The invention discloses a highland barley biological control disease-resistant and growth promoting method. The highland barley biological control disease-resistant and growth promoting method comprises the steps that bacillus subtilis are made into high density bacterial suspension with the density ranging from 109cfu/mLto 1010cfu/mL; healthy highland barley straws are cut into small sections to compost, the bacillus subtilis high density bacterial suspension is sprayed in the composting process, a biological fertilizer capable of effectively restraining and killing highland barley pathology funguses is obtained after fermentation and is used on highland barley biological control disease-resistant and growth promotion. According to the highland barley biological control disease-resistant and growth promoting method, the bacillus subtilis producing beta dextranase are plant probiotics with a disease-resistant and growth promoting function, the biological fertilizer is added into the compost to effectively strengthening the biological control function on highland barley disease funguses, restraining and killing effects on sheath rot pathogenic bacteria are showed, and the highland barley yield is improved. According to the highland barley biological control disease-resistant and growth promoting method, treatment of the composting process is easy, no waste water is discharged, the investment is small, the energy consumption is low, the operation is easy, industrialized mass production is easy to achieve, the economic benefit is good, and the application prospect is wide.

The invention relates to a control method for bacterial blight of rice. The control method comprises the following steps: 1, ecological management: applying HYT (high yield technology) or Difulai microorganism fertilizer so as to improve soil physical and chemical properties, improve soil fertility and enhance the absorbing ability of rice roots; 2, agricultural control; 3, biological control; 4, biological prevention; 5, physical control; 6, chemical control: spraying 20 percent of bismerthiazol, 10 percent of chloramphenicol, 70 percent of phenazin or 25 percent of Yekuling wettable powder after a center disease plant is discovered. The bacterial blight of the rice can be effectively controlled; meanwhile, integrated control is performed by adopting measures of the agricultural control, the physical control and the like so as to reduce the average incidence of the bacterial blight of the rice, therefore the yield is increased; the grade of the rice is obviously increased; good economic benefit is obtained.