84 results about "Trialeurodes" patented technology

The invention discloses a segmentation method for a trialeurodes vaporariorum image based on multi-feature fusion. An information processing function of the human is simulated by the segmentation method for the trialeurodes vaporariorum image based on the multi-feature fusion. The segmentation method for the trialeurodes vaporariorum image based on the multi-feature fusion comprises the following steps of firstly, roughly finding out a possible pest region by the edge feature of the image; then, establishing a Gaussian mixture model of the difference of gray values of 8-connected neighborhoods in the region by utilizing the area, the perimeter, the minimum gray value, the maximum gray value, the average gray value, the gray value variance, the longest axis and the minimum enclosing rectangle of the pest region; modeling parameters of the Gaussian mixture model together with other features; repeatedly rejecting samples which does not fit model distribution; and extracting a real pest target.

The invention relates to an imidacloprid and cypermethrin synergic compound which is an aqueous emulsion comprising the following components in percentage by weight: 2-4% of cypermethrin, 1-3% of imidacloprid, 0.05-5% of synergist, 1-5% of antifreezing agent, 0.5-2% of penetrating gent, 5-25% of latent solvent, 3-20% of emulsifying agent and the balance of water added to 100%. The imidacloprid and cypermethrin synergic compound disclosed by the invention has the advantages of simple production process, safety in use, remarkable synergism on cotton aphids, cabbage aphids, wheat aphids, trialeurodes vaporariorum and the like, improvement on the control effect of various pests, acceleration on the insect disinfestation speed of pesticides, lower use cost and strong synergism and controlling function; in addition, the imidacloprid and cypermethrin synergic compound does not hurt the beneficial insects during controlling pests, is beneficial to comprehensively controlling the pests, also enlarges the insecticidal spectrum and reduces the toxicity on persons and animals.

The invention relates to primers and method for identifying greenhouse trialeurodes vaporariorum and bemisia tabaci by utilizing mitochondria SCAR (sequence characterized amplified regions) marker. The primers are nucleotide sequences shown as SEQ ID NO.1 and SEQ ID NO.2 respectively. The method comprises the following steps: (1) extracting aleyrodid genome DNA (deoxyribonucleic acid); (2) performing polymerase chain reaction (PCR) amplification by taking the aleyrodid genome DNA as a template; and (3) performing sepharose gel electrophoretic analysis on the PCR amplification prepared in the step (2). According to the invention, a simple and stable molecular marker for identifying the greenhouse trialeurodes vaporariorum and bemisia tabaci is provided and a foundation is laid for research of population dynamic identification, biology and invasion mechanisms of aleyrodid in the future.

The invention discloses a pyrazolopyridine ureide compound. In a structural general formula I, R1 is selected from CH(CH3)2 or furfuryl, and Y is selected from O or S. The compound shown in the general formula I has an excellent insecticidal activity, has an unexpected ultrahigh activity on the lepidoptera pests such as diamond back moths, beet armyworms and rice stem borers, also has a good killing effect on the piercing-sucking type pests such as trialeurodes vaporariorum and pest mites, and can be used for preventing and controlling agricultural or forest pests.

The invention relates to application of bacillus subtilis protein AMEP412 in prevention and treatment of whiteflies. The insecticidal activity of the AMEP412 protein on the trialeurodes vaporariorum and the application of the AMEP412 protein in prevention and treatment of the trialeurodes vaporariorum are discovered, and the protein can kill the trialeurodes vaporariorum at a low concentration, has heat resistance and natural degradation resistance stability, can be ingested into intestinal tracts by the trialeurodes vaporariorum, but does not inhibit protease activity in intestinal tracts; inaddition, the AMEP412 is sprayed in a greenhouse, so that a good prevention effect on the trialeurodes vaporariorum is achieved; according to the invention, a new material is accumulated for biological prevention and control work of the trialeurodes vaporariorum.

The invention belongs to the technical field of biological prevention and control of agriculture and forestry injurious insects, and particularly relates to a method for improving factory propagation efficiency of encarsia formosa. According to the anniversary factory propagation method of encarsia formosa disclosed by the invention, compound fertilizers and organic fertilizers are applied in earlier stages for mixed applying cultivation, and nutrient solution cultivation is carried out in later period, so that the cultivation quality of tobacco seedlings is obviously improved, the effects that the tobacco seedlings are strong and leaves are large and green are achieved, and thus improving the propagation efficiency of trialeurodes vaporariorum and encarsia formosa in green houses.

The invention discloses an estimation method for trialeurodes vaporariorum population density. The estimation method for the trialeurodes vaporariorum population density comprises the following steps of: obtaining the colorful image of trialeurodes vaporariorum from image collection equipment; selecting the estimation area of the trialeurodes vaporariorum density from the colorful image; converting the colorful image of the color estimation area into a gray scale image; carrying out thresholding on the gray scale image with a first thresholding method; carrying out closed operation on the thresholding image; thresholding the image subjected to the closed operation with a second thresholding method; fitting a binary image midpoint with an ellipse fitting method; calculating the number of ellipse in the image; and according to the number of the trialeurodes vaporariorum and the area of the estimation area, solving the estimation value of the trialeurodes vaporariorum population density. According to the estimation method for the trialeurodes vaporariorum population density, which is disclosed by the invention, the trialeurodes vaporariorum population density in the image can be automatically and accurately estimated, decision information is provided for correctly estimating the damage degree of the trialeurodes vaporariorum and adopting a proper control measure, and the trialeurodes vaporariorum prevention and control automation is indirectly propelled.

The invention discloses a radix sophorae flavescentis and vinegar mixture for preventing and treating crop diseases. The mixture comprises a main agent and selectively added auxiliary agents, wherein the main agent is prepared from the radix sophorae flavescentis and fermented vinegar which are immersed for 30-40 days according to the weight ratio of 1:10-15, the immersing temperature is 4-30 DEG C, the radix sophorae flavescentis and the fermented vinegar are evenly mixed to prepare the main agent of the radix sophorae flavescentis and vinegar mixture, or the main agent is prepared by a decocting method; the auxiliary agents are prepared by organosilicone adjuvants, cell membrane stabilizers, folium isatidis decoction and water; the auxiliary agents and the main agent are combined to prepare different radix sophorae flavescentis and vinegar compositions, and one or a combination of more than one of the different radix sophorae flavescentis and vinegar compositions are used to form the radix sophorae flavescentis and vinegar mixture. Chinese herbal medicines, auxiliary agents and adjuvants, which have the function of inhibiting the growth and the development of fungi, bacteria, viruses, mycoplasma, chlamydia, viroid and other pests, are selected to be prepared scientifically; the mixture prevents and treats bacterial diseases, fungal diseases and viral diseases of crops and pests of trialeurodes vaporariorum, aphid, thrips and the like; the mixed formula can be used for increasing the crop immunity, and the purposes of healthy cultivation, disease prevention and pest control, quality improvement and efficiency improvement for plants are achieved.

The invention relates to the field of molecular biology, in particular to a specific sequence characterized amplified region (SCAR) marker for Trialeurodes vaporariorum, specific primers, and a quick molecular identification method. According to the specific SCAR marker for the Trialeurodes vaporariorum, the nucleotide sequence of the specific SCAR marker is shown as SEQ ID NO.1. The invention also relates to probes hybridized with the specific SCAR marker for the Trialeurodes vaporariorum, or annealing marker primer pairs for the specific SCAR marker. The quick molecular identification method for the Trialeurodes vaporariorum comprises a step of hybridizing by using the specific SCAR marker probes for the Trialeurodes vaporariorum or performing polymerase chain reaction (PCR) amplification by using the annealing specific primers. The SCAR molecular marker has the advantages of high repeatability, high specificity, high sensitivity and the like, and can quickly and accurately identifythe Trialeurodes vaporariorum at low cost. The SCAR molecular marker can quickly and cheaply identify the Trialeurodes vaporariorum in fields quickly, and has important significance for pertinently controlling the Trialeurodes vaporariorum in the fields.

The invention relates to an insecticidal fungicide with matrine and tea saponin. The insecticidal fungicide comprises the following components in weight: 33 parts of matrine technical concentrate (TK), 350 parts of tea saponin mother medicine, 90 parts of emulsifier, 30 parts of water-soluble azone penetrant, 40 parts of anesthetic, 3 parts of sodium benzoate and 454 parts of deionized water. The insecticidal fungicide with matrine and tea saponin is wide in insecticidal spectrum, long in effect-lasting period, safe in use and good in comprehensive prevention effect; for vegetables, the insecticidal fungicide is mainly used for preventing and killing liriomyza sativae, trialeurodes vaporariorum, cabbage caterpillar, aphid, jump beetle, noctuid type young pests and the like; and the insecticidal fungicide has the outstanding characteristic that the vegetables grow very well after being sprayed with the insecticidal fungicide, and the comprehensive prevention effect is obvious.

The invention relates to a pair of primers and method of identifying a cryptic specie of bemisia tabaci and trialeurodes vaporariorum. The pair of primers of identifying the cryptic specie of bemisia tabaci MEAM1 (Middle East-Asia Minor one), the cryptic specie of bemisia tabaci MED (Mediterranean) and trialeurodes vaporariorum is respectively nucleotide sequences shown as SEQ ID NO. 1 and SEQ ID NO. 2. The invention further relates to a method of identifying the cryptic specie of bemisia tabaci and trialeurodes vaporariorum by the primers. The primers of identifying the cryptic specie of bemisia tabaci MEAM1, the cryptic specie of bemisia tabaci MED and trialeurodes vaporariorum can amplify BtabCSP2 genes in genomic DNAs of cryptic species of bemisia tabaci MEAM1 and MED but have no amplification effect on genomic DNA of trialeurodes vaporariorum. The primers provide simple, convenient and stable molecular markers for identifying the cryptic specie of bemisia tabaci MEAM1, the cryptic specie of bemisia tabaci MED and trialeurodes vaporariorum and solve the problem that an existing method of identifying the cryptic specie of bemisia tabaci MEAM1, the cryptic specie of bemisia tabaci MED and trialeurodes vaporariorum is tedious.

The invention discloses a pesticide composition containing sodium abietate and dinotefuran. The pesticide composition comprises a first active ingredient sodium abietate, a second active ingredient dinotefuran as well as normal auxiliary components, wherein a ratio in parts by weight of the sodium abietate to the dinotefuran is 50:1 to 1:1; the total weight of the sodium abietate and dinotefuran accounts for 5%-60% (in percentage by weight) of the pesticide composition. The pesticide composition is applied to cucumber trialeurodes vaporariorum, is superior to the single dose in fast-acting property and lasting property, the dosage of pesticides is reduced, the dosage cost is lowered, and the comprehensive control on environmental pollution and agricultural pests is facilitated.

The invention provides a saline-alkali soil Chinese cabbage special vegetable insecticide containing derris extracts and a preparation method of the insecticide. The insecticide is prepared from, by mass, 11-20 parts of diafenthiuron, 2.8-5.5 parts of derris extracts, 1.4-2.6 parts of plantain herb extracts, 2.2-4 parts of chlorothalonil, 1.5-2.5 parts of alkaloid of Sophora alopecuraides L, 1.5-2.6 parts of ammonium molybdate, 15-25 parts of organic solvent, 9-15 parts of emulsifier, 4-8 parts of thickener, 4.5-8 parts of antifreezing agent and 26-45 parts of water. The invention further provides application of the insecticide to saline-alkali soil Chinese cabbage plantation. The insecticide has the advantages that the prevention effects on frequently-seen injurious insects including aphid, trialeurodes vaporariorum, cabbage webworm, plutella xylostella and imported cabbageworm in Chinese cabbage fields reach 96.2-99.2%, 79.4-82.1%, 76.3-77.1%, 95.2-99.7% and 92.4-96.1% respectively 15 days after the prepared insecticide is applied.

The invention discloses an insecticidal composition containing chromafenozide and organic phosphorus. The insecticidal composition contains an active ingredient A and an active ingredient B, the active ingredient A is selected from chromafenozide, and the active ingredient B is an organophosphorus compound selected from any of the following: chlorpyrifos, dimethyl-dichloro-vinyl-phosphate, malathion and profenofos, and the active ingredient A and the active ingredient are in a weight ratio of 1:80-80:1. The composition provided in the invention can control a plurality of pests, has an obvious synergistic effect, expands the insecticidal spectrum, and has high activity on beet armyworms, Spodoptera litura, tortricid, Cnaphalocrocis medinalis, wireworms, cutworms, aphids, red spiders, trialeurodes vaporariorum, scale insects, Psylla chinensis, stinkbugs and the like on vegetables, fruit trees, rice and soybeans. Also, the dosage of pesticides is reduced, the pesticide residue on crops is lowered, and the environmental pollution is alleviated. Being safe to human and livestock, the insecticidal composition has good environmental compatibility, and pests are less likely to generate drug resistance.

The invention relates to a desinsection composite which has synergy and contains Pyriproxyfen and Abamectin, belonging to the technical field of pesticide. The compounded active pesticide is prepared by the Pyriproxyfen and the Abamectin which have proportion by weight of 0.1:10-50:0.1. The desinsection composite overcomes the deficiencies of the prior art and shows remarkable synergy. When less dosage of the desinsection composite is applied for treating the pests such as bemisia tabaci, rice fulgorid, rice leaf roller, chilo suppressalis, yellow rice borer, thrips, aphids, trialeurodes vaporariorum, leafhopper and diamond back moth, excellent contact insecticide property, stomach toxicity and ovicidal effect are shown.

The invention relates to a carrier plant system for breeding encarsia sophia, a construction method, a breeding method and a method for preventing and controlling whitefly pests, and belongs to the technical field of biological prevention and control over agricultural pests. The carrier plant system is used for breeding the encarsia sophia, and the encarsia sophia has a good biological preventionand control effect on bemisia tabaci and trialeurodes vaporariorum. Carrier plant rice plants adopted for the carrier plant system are not harmed by the bemisia tabaci, the trialeurodes vaporariorum or other target pests, and therefore, when rice is regarded as carrier plants, nutrition sources of the target pests are not increased. Rice whiteflies belong to homoptera aleyrodidae, forage and breedonly on the rice, and thus cruciferae vegetables, solanaceae vegetables and other vegetables are not harmed. The encarsia sophia belongs to the hymenoptera, aphelinidae and encarsia, is an importantparasitic enemy of the bemisia tabaci and trialeurodes vaporariorum, and can conduct breeding with the rice whiteflies as hosts.

The invention discloses an environment-friendly pesticide for preventing and treating tomato trialeurodes vaporariorum. The environment-friendly pesticide contains a tomato seed soaking agent and a tomato plant spraying agent, wherein the tomato seed soaking agent contains the following raw materials: folium isatidis, tobacco leaves, artemisia apiacea, fresh ginger, mint, radix stemonae, rhizoma arisaematis, fructus quisqualis, rheum officinale, Sichuan pepper, realgar and calomel; and the tomato plant spraying agent contains the following raw materials: rhizoma cyrtomii, radix stemonae, rhizoma arisaematis, betel nut, cinnabar, realgar, fructus quisqualis, rhizoma pinelliae, artemisia apiacea, herb of tuberculate speranskia, folium isatidis, a dispersing agent, a defoaming agent and a suspending aid. By utilizing a pure traditional Chinese medicine preparation, chemical pesticides are not added, so that the environment-friendly pesticide has a good pest killing effect, has no residue of toxic medicines, can be absorbed by plants and is a nutrition solution with a pest killing function.

The invention provides a deinsectization composition comprising cycloxaprid, which comprises cycloxaprid and pyriproxyfen at a mass ratio of 1:15-30:1. The deinsectization composition has a good deinsectization effect on pests such as scale insects and trialeurodes vaporariorum, and can be widely used for crops.

The invention discloses a biofertilizer adopting nitrogen, phosphorus and potassium as carriers and adopting an abamectin mixture as a pesticide component. The biofertilizer comprises the abamectin mixture, ammonium sulfate, monoammonium phosphate, potassium sulfate, borax, zinc sulfate, ferrous sulfate, calcium powder, a rooting agent, brown sugar, chicken manure, pricklyash peel powder, peanut cake or castor cake. The biofertilizer is suitable for various vegetable and fruit crops. After the biofertilizer is used, fruits of the crops are straight, early-ripe and good in color, the number of times of spraying pesticides is reduced, yields and sweetness of fruits and vegetables are increased, and 20-30% of costs can be saved. After the biofertilizer is used, growth of root nematodes is effectively inhibited, and the biofertilizer has specially good effects for trialeurodes vaporariorum. The biofertilizer has fertilizing effects and pesticide effects and has high practical value.

The invention relates to an insecticidal composition with synergistic effect. The basic active components of the insecticidal composition are destruxins and diflubenzuron which are mixed according to a ratio of 1-9 g: 1-9 g. Adjuvants and excipients are added into the active components for preparation of a wettable powder, a suspending agent or an emulsion in water. The insecticidal composition can be applied to prevention and treatment of diamondback moth, prodenia litura, Lithocolletis ringoniella, grubs, wireworms, Trialeurodes vaporariorum, Liriomyza sativae, root maggots and Bradysia odoriphaga, preferably to prevention and treatment of lepidoptera insects like diamondback moth and prodenia litura on cruciferous vegetable, and has the advantages of stable efficacy, fast action, long action period, safety, environmental protection, etc.

The invention discloses a ligularia virgaurea volatile matter and aconitum szechenyianum gay alkaloid compound long-acting insecticide and a preparation method thereof. By taking the ligularia virgaurea volatile matter and the aconitum szechenyianum gay alkaloid as principle active ingredients, the compound long-acting insecticide is further added with an inclusion material, a wetting agent, a disintegrant, an adhesive, filler and a lubricant. The preparation method comprises the following two steps: firstly preparing a ligularia virgaurea volatile matter clathrate compound; and then compounding and tabletting with the aconitum szechenyianum gay alkaloid to obtain a ligularia virgaurea volatile matter and aconitum szechenyianum gay alkaloid compound long-acting insecticide finished product. The product has a control effect on various crop pests, and particularly has an obvious control effect on common and refractory phloem-sucking pests such as trialeurodes vaporarionm westwood, various aphids and the like and noctuidae pests such as cotton bollworms in facility agriculture, and the control effects are over 85%; the insecticide is fast in insecticidal speed, and after medication in three days, over 95% of target pests go on a hunger strike, act slowly, and stop further damage; the insecticide is long in lasting period and after medication in 25 days, the control effect is still over 80%.

The invention relates to an application of a pesticide composition containing spinosad and cyantraniliprole for preparing a pesticide for preventing trialeurodes vaporariorum and thrips, specifically to an application for preparing a pesticide for preventing trialeurodes vaporariorum and thrips, wherein the weight ratio between the spinosad and the cyantraniliprole in the pesticide composition is (100:1): (1:100). According to the new application, the preventing efficiency is improved, the preventing spectrum is expanded, the persistent effect period is prolonged, the dosage of effective components and the times for spraying are reduced, producing of resistance to pesticide is postponed and the pollution to environment is reduced.

The invention relates to a preparation method for a botanical pesticide special for landscape plants. The method is characterized by comprising the steps of mixing 70 to 90 weight parts of dry plant powder, 2 to 6 weight parts of inorganic base, and 5 to 10 weight parts of powdery surfactant. The pesticide is convenient to transport and store and safe to use, and is particularly suitable for landscape plants with higher requirements on safety for killing and expelling pests; and moreover the pesticide has a good control effect on red spider, aphid, trialeurodes vaporariorum, scale insect, pseudaulacaspis pentagona, aromia bungii, prodenia litura, leaf folder, loopworm, arge pagana and other pests in landscape plant. The pesticide is suitable for woody and herbal landscape flowers and leave or fruit trees, gardens, green lands and places of interests for protecting plants and economic plants, and indoor decorative plants and landscape seedlings.