30 results about "Crop mycosis" patented technology

The invention discloses a bactericidal composition containing difenoconazole and kresoxim-methyl and a preparation method and applications thereof. The bactericidal composition is characterized by comprising difenoconazole and kresoxim-methyl and other assistants, wherein the weight ratio of the difenoconazole to the kresoxim-methyl is 1:1-1:80. The bactericidal composition provided by the invention can be used for prevention of fungal diseases of crops such as cereals and fruit trees, melons and vegetables, has characteristics of wide application range, low cost and good effect. The indoor pharmacodynamic tests prove that the bactericidal composition has obvious synergistic function.

The invention relates to a new species of cereus tearing fungus and its application in the prevention and treatment of fungal diseases of crops. The preservation number is CGMCC No.13899, and the classification name is Ceriporia lacerate HG2011, the strain has C. lacerate Nucleotide sequence in HG2011 18S rDNA sequence listing. Belonging to the Phanerobacteriaceae ( Phanerochaetaceae ) cereus ( Ceriporia ). The colony is white, fluffy and flocculent; the suitable temperature for growth is 25~28℃. The strain can secrete a variety of extracellular enzymes such as chitinase, cellulase, β‑1,3‑glumerase and protease, and its fermentation broth has a strong antagonistic effect on a variety of plant pathogenic fungi, and is used in The control of flue-cured tobacco and capsicum phytophthora has great application potential in the control of plant pathogenic fungi.

The invention relates to the application of an oleanane-type pentacyclic triterpene compound in preventing and treating fungal diseases of crops and a method for using the same to prevent and control fungal diseases of crops. The present invention does not utilize the direct antibacterial effect of oleanane-type pentacyclic triterpenes, but improves the resistance of crops to fungal diseases by soaking seeds before sowing or soaking roots before transplanting or spraying leaves after transplanting ability, and finally achieve the purpose of disease resistance. More importantly, the prevention and control method provided by the invention only needs to be applied once before planting to achieve the purpose of alleviating the disease, which greatly reduces the control cost of conventional pesticides.

The invention describes a natural fungicide which comprises gallnut and myrobalan extracts which exhibit a synergistic effect against Alternaria brassicicola, and can be used to control crop fungal diseases.

The invention provides an agricultural fungicide taking new phosphorus and nitrogen mycin A as an effective ingredient, as well as preparation method and application thereof. The preparation method of the agricultural fungicide comprises the following steps of: firstly culturing Streptomyces tauricus ECO 00008 with the preservation number of CGMCCNo. 1682; then separately extracting a fermentation culture; breaking the wall of mycelium with acetone or methanol and mixing with a fermentation supernate; and absorbing by macroporous absorption resin for separation; eluting by the acetone or the methanol; concentrating or further purifying an eluent so as to obtain the new phosphorus and nitrogen mycin A; and then adding a carrier or an auxiliary agent so as to obtain a finished product. Test results show that the agricultural fungicide WYLZ-1349 has good effect especially in preventing and controlling rice blast, tobacco brown spot, tomato gray mold and pepper anthracnose and has small using amount, low using cost for peasants, wide usable range, and the like compared with the traditional medicament.

A salt-alkali-resistant and anti-pathogenic fungus Aspergillus terreus strain SYAT‑1 and its application belong to the field of microbial technology. The strain of the present invention has been preserved in the General Microbiology Center of China Microbiological Culture Collection Management Committee on November 9, 2020. The preservation name It is Aspergillus terreus SYAT‑1, and the preservation number is CGMCC No.21021; the Aspergillus terreus strain SYAT‑1 of the present invention has salt tolerance, and it can tolerate salt stress caused by sodium salt below 17.5%; the strain also has alkali resistance , it can tolerate alkali stress below pH=12, and its optimum pH range for growth is 7.0-9.0; in addition, the bacterial strain has inhibitory effect on plant pathogenic fungi. The Aspergillus terreus strain SYAT-1 of the present invention has important application value in saline-alkali soil improvement and biological control of crop fungal diseases.

The invention relates to an antibiotic streptomyces, fermentation product of which can inhibit broad spectrum fungus and protozoan, and field experiment can control crop fungus plant disease and root-knot nematode. The antibiotic streptomyces has good effect, no pollution nuisance and no residue. The antifungal agent has extremely low hazardness for the people and good performance and developmentprospect for medical and agricultural use. The invention is named as SIM001 antibiotic streptomyces which is Streptomyces antibioticus subspecies xi an, and is preserved as patent in the depositary institution appointed by patent office of state intellectual property office; the preservation data is April 14th, 2005, the name of the depositary institution is CGMCC, and the number of preservation is CGMCC No.1349. The whole cell hydrolysate of the antibiotic streptomyces contains L, L-DAP (Diaminopimelic acid) and no characteristic glucide; the cytoderm belongs to I type and glucide type C; one of the main antibacterial materials is polyene macrocyclic ketolide which belongs to the broad spectrum antifungal substance.

The invention relates to a bactericide composition for preventing and controlling cotton disease. The bactericide composition is a composition of wettable powder, suspending agent, water dispersible granule or seed coating, which is prepared from fluoride ether bacteria amide, thiram and auxiliaries of wetting agent, dispersing agent, filling agent and the like. The fluoride ether bacteria amide and the thiram are mixed by the proportion of 1:4 to 4:1 and the combination of two bactericides with different bactericidal action mechanisms not only plays an obvious synergistic effect for cotton blight, but also is helpful for postponing the drug resistance of pathogenic bacteria. The bactericidal range is wide. The bactericide composition provided by the invention is applicable to prevention and control of various fungal diseases of crops, such as cotton blight, cotton damping off, cotton anthracnose, vegetable root rot and damping off and strawberry blight.

The invention discloses a preventive detection apparatus and method for fungal diseases of crops based on a micro-fluidic chip, belonging to the field of microbiological detection. According to the preventive detection apparatus, the output shaft of a stepping motor is upwardly arranged and fixedly connected with the center of the micro-fluidic chip; multi-stages of identical micro-fluidic detection channels are arranged on the micro-fluidic chip; a pneumatic solenoid valve group is composed of a plurality of pneumatic solenoid valves with a same structure; the end, where an air inlet is located, of each pneumatic solenoid valve is connected with a chip exhausting opening via a flexible exhausting pipe ; and the other end of the airway of each pneumatic solenoid valve is connected with a minisized air pump via an air outlet of the pneumatic solenoid valve. The preventive detection apparatus employs a rotary micro-fluidic chip capturing structure, has the functions of automatic filtering, negative-pressure suction, enrichment detection, electric air exhausting, etc. and can carry out both on-site high-flux detection of the fungal diseases of a crop in a field and portable, rapid and high-efficiency capturing of fungi on different crops, thereby realizing early detection and early warning of diseases.