318 results about "Chilo suppressalis" patented technology

The invention provides a method for efficient zizania aquatica chilo suppressalis and rice chilo suppressalis breeding. The method includes that a first device and a second device are provided, wherein the second device comprises a colorless and transparent 500ml glass bottle; four layers of gauzes are paved at the bottom of the glass bottle, and a filter sheet is cushioned on the gauzes; three sections of fresh zizania aquatica are placed above the filter sheet in a triangle mode, and one layer of preservative film and one towel block are sequentially placed on the zizania aquatica; then, the opening of the glass bottle is covered with black cloth which is tightened through a rubber ring; or the second device comprises a colorless and transparent 500ml glass bottle; a wetted filter sheet is paved at the bottom of the glass bottle; rice seeds already sprouted are sown on the filter sheet, and when rice seedlings grow by 4-5cm, one layer of preservative film and one towel block are sequentially placed above the rice seedlings; after that, the opening of the glass bottle is covered with the black cloth which is tightened through the rubber ring. The chilo suppressalis can be gathered at one place for pupation, so that efficiency of pupa collection is improved, and death rate of the pupa is greatly reduced.

The invention discloses serratia marcescens NlM280 and an application thereof as an insecticide. A bacterial suspension obtained by the fermentation culturing of the serratia marcescens NlM280 or a supernatant obtained by centrifuging the bacterial suspension can be used for preventing and treating brown planthopper or chilo suppressalis. The results of injecting or feeding the bacterial suspension or the fermented supernatant of the serratia marcescens NlM280 into the brown planthopper show that the fatality rate of the brown planthopper after being injected with the bacterial suspension for 2 days can reach 100%; the fatality rate of the brown planthopper after being fed with the bacterial suspension for 3 days can reach 79.8%; the pathogenic effects of the serratia marcescens NlM280 are not influenced if the supernatant of the fermentation liquor of the serratia marcescens NlM280 is treated at the temperature of below 55 DEG C; the fatality rate of the brown planthopper after being injected with the fermented supernatant for 2 days can reach 97.2%; the effect on the brown planthopper after being fed with the fermented supernatant is hysteretic, i.e., the fatality rate of the brown planthopper after being fed with the fermented supernatant for 6 days reaches 84.2%. After the bacterial suspension or the fermented supernatant is sprayed to rice, if the rice is fed to the chilo suppressalis, the fatality rate of the bacterial suspension or the fermented supernatant to the chilo suppressalis can reach above 80.0% at the 4th day.

The invention discloses a pesticide composition containing cycloxaprid and a carbamate pesticide. The pesticide composition is characterized in that the weight ratio of cycloxaprid to the carbamate pesticide is (1:60)-(50:1). The composition can be prepared into such agriculturally allowable dosage forms as suspending agents, wettable powder, water dispersible granules, emulsifiable concentrates or microemulsion. The pesticide composition has the following beneficial effects: the pesticide composition has reasonable ingredients, a good pesticidal effect and low drug cost; the activity and pesticidal effect of the pesticide composition are not simply the addition of the activities and pesticidal effects of the ingredients; compared with the existing single preparation, the pesticide composition has an obvious synergistic effect besides the obvious pesticidal effect, slows down generation of resistance, has small residual quantity, does not pollute the crops, has good safety, conforms to the safety requirement of the pesticide preparation and has better control effect on aphis gossypii, chilo suppressalis, cnaphalocrocis medinalis guenee, rice plant hopper and phyllotreta striolata of vegetables.