17 results about "Tetranychus" patented technology

The invention belongs to the technical field of agricultural compositions, and particularly relates to a composition for preventing and treating papaya spider mites. The active ingredients of the composition are hexythiazox and quercetin, the mass ratio of hexythiazox to quercetin is 1: (0.5-20), preferably 1: (7.5-12.5), and an indoor toxicity determination test shows that the composition has a remarkable synergistic effect on tetranychus urticae within the ratio range. The invention also provides a water emulsion, a suspending agent, missible oil and other pesticide preparations containing the composition. Field efficacy tests prove that the composition provided by the invention has a good control effect on tetranychus urticae on papaya, is long in lasting period, and can effectively slow down the development of pest drug resistance. The invention provides a novel scheme with high efficiency and low dosage for controlling the carica papaya spider mites.

The invention provides a predatory mite venom protein or a spider venom protein. The amino acid sequences of the predatory mite venom protein and the spider venom protein are selected from SEQ ID NO.1-8 or any one of SEQ ID NO.1-8 with 95% or more of identity. Tetranychus urticae tests show that after spraying treatment, the predatory mite poison protein or spider poison protein provided by the invention achieves a 100% lethal effect within 48 hours, and is a known protein pesticide with the highest tetranychus urticae lethal rate at present. The predatory mite poison protein or spider poison protein provided by the invention has high specificity to spider mites, is mild and harmless to human bodies and other organisms in the environment, can be used in farmlands, gardens and even family potted plants, and can be naturally degraded; the production process is simple and efficient, and has the potential of large-scale application.

This invention belongs to the field of microbial pesticides and discloses a highly effective Bacillus subtilis strain for killing spider mites and its applications. The Bacillus subtilis strain described in this invention has the preservation number CCTCC NO: M 20251959. Indoor bioassay data show that Bacillus subtilis NBIF-051 has high toxicity against major agricultural mites such as the two-spotted spider mite, the citrus red spider mite, and the cotton red spider mite. Pot experiments showed that after spraying the fermented broth of NBIF-051 for 7 days, the control efficacy against the two-spotted spider mite was 65.18%. Field trials showed that after spraying the fermented broth of this strain for 15 days, the control efficacy against the citrus red spider mite was 63.45%~76.85%, comparable to commercially available chemical acaricides. Furthermore, the acaricidal activity of the fermented broth of this strain exhibits certain tolerance to high temperatures and ultraviolet radiation, showing broad application prospects in agricultural production.

The invention discloses an agricultural synergist containing linalool and application of the agricultural synergist, and belongs to the technical field of killing agents for biopesticides. The agricultural synergist is prepared from the following components in parts by mass: 15 to 40 parts of linalool, 50 to 80 parts of mesoporous silicon dioxide nano carrier, 5 to 12 parts of surface functionalization modifier, 3 to 10 parts of carbon nano tube, 5 to 10 parts of enhancer, 5 to 15 parts of poly (N-isopropylacrylamide), 2 to 8 parts of chitosan or polyvinyl alcohol and 20 to 50 parts of deionized water. Slow-release loading of linalool is achieved through the mesoporous nano-carrier, and the insecticidal effect and stability are remarkably improved by combining surface modification and strengthening components. Experiments show that the insecticidal rate of the synergist to tetranychus urticae exceeds 90%, the 72-hour accumulative release rate is lower than 47%, and the suspending agent has no layering phenomenon and is suitable for spraying construction. The composition can be prepared into various dosage forms such as missible oil and a suspending agent, is especially suitable for the suspending agent form, and provides an innovative solution for long-acting prevention and control of biopesticide.

The invention relates to the technical field of pesticides, in particular to a pentafluorosulfenyl-containing biphenyl compound, a composition and application of the pentafluorosulfenyl-containing biphenyl compound. The pentafluorosulfenyl-containing biphenyl compound is a compound as shown in a formula I, or a stereoisomer, a tautomer, an isotope derivative and a pesticide acceptable salt thereof. The biphenyl compound containing the pentafluorothio group shows an excellent prevention and control effect on various pests, particularly tetranychus cinnabarinus, tetranychus urticae, tetranychus shennieri, panonychus citri and the like, and compared with compounds disclosed in the prior art, the biphenyl compound containing the pentafluorothio group has better insecticidal or acaricidal activity and is safe to crops.

The invention relates to a botanical insecticidal composition containing nicotine and veratrine extract and application of the botanical insecticidal composition. The botanical insecticidal composition comprises tobacco leaf extract nicotine and veratrine in a mass ratio of (4-7): (3-6). According to the botanical insecticidal composition provided by the invention, through a large number of experimental research screening, the tobacco leaf extracts nicotine and veratrine are mixed according to a specific mass ratio to achieve a synergistic effect, under the same dosage, the botanical insecticidal composition has more excellent insecticidal and acaricidal effects, the use concentration of the compound insecticidal composition can be greatly reduced, the cost is lower, and the effect is better. And the environmental pollution is less. The botanical insecticidal composition provided by the invention has a good control effect on tetranychus urticae of rosa chinensis and solanaceae crops, and has important economic value and environmental protection value.

The invention relates to a botanical insecticidal composition containing limonene and veratrine and application of the botanical insecticidal composition. The botanical insecticidal composition comprises limonene and veratrine in a mass ratio of 1: 1 or (7-9): (1-3). According to the botanical insecticidal and acaricidal composition provided by the invention, a synergistic interaction effect can be achieved after limonene and veratrine are mixed according to a specific mass ratio through a large number of experimental research screening, and under the same dosage, the botanical insecticidal and acaricidal composition has a better acaricidal effect, the use concentration of the compound insecticidal composition can be greatly reduced, the cost is lower, and the environmental pollution is smaller. The botanical insecticidal composition provided by the invention has a good control effect on tetranychus urticae of crops such as flowers and vegetables, and has important economic value and environmental protection value.

The invention provides a nano compound for preventing and treating thrips and tetranychus urticae, the nano compound comprises a veratrine complex and Triton X-100, and the mass ratio of veratrine to Triton X-100 in the veratrine complex is 1: (50-100); the veratrine complex comprises veratrine and SPc in a mass ratio of 1: (2-5). According to the nano compound for preventing and treating thrips and tetranychus urticae, the prevention and control effect of veratrine under the working concentration is improved on the basis of a nano drug loading system under the synergistic effect of a star-shaped cationic polymer (SPc) and a nonionic surfactant Triton X-100, and efficient delivery of veratrine and improvement of the prevention effect are achieved.

The invention relates to an acequinocyl-containing acaricidal composition as well as a preparation method and application thereof, and relates to the field of pesticides, the active ingredients of the acequinocyl-containing acaricidal composition comprise acequinocyl and fluralan, and the weight ratio of acequinocyl to fluralan is (99: 1)-(1: 99), optionally (70-1: 1-70), optionally (50-1: 1-50), optionally (30-1: 1-30), optionally (0.2-50): 1, optionally (0.1-20): 1, optionally (0.1-10): 1, optionally (5-10): 1 and optionally (0.1-5): 1. The acaricidal composition (acequinocyl and fluralan) selected by the invention shows activity superior to that of a single agent in a certain ratio range, and particularly has higher prevention and control advantages on populations which are easy to generate resistance, such as panonychus citri and tetranychus urticae.

Disclosed are aryl sulfides, a method for synthesizing the same, and applications thereof. The aryl sulfides are compounds having a structure as shown in Formula I or agriculturally acceptable salts thereof. The aryl sulfides and the agriculturally acceptable salts thereof exhibit excellent effects on a variety of harmful organisms, particularly on spider mites represented by Tetranychus cinnabarinus, Tetranychus urticae, Tetranychus kanzawai, Panonychus citri, and the like, and can be used for controlling various harmful mites.

The present invention belongs to the field of pesticide technology and relates to a pesticide composition and its use. The pesticide composition comprises an active ingredient A and an active ingredient B; the active ingredient A is a compound of formula (I), and the active ingredient B is one or more selected from acaricides. The pesticide composition can effectively control various plant-feeding mites, particularly spider mites, exhibiting a synergistic effect within a certain ratio range, reducing use costs, reducing dosage, extending the duration of effectiveness, and delaying the development of drug resistance.

The invention belongs to the technical field of molecular detection, and particularly relates to a GluCl2 subunit mutation site-based detection reagent for drug resistance of spider mites to abamectin and a PCR-RFLP (polymerase chain reaction-restriction fragment length polymorphism) detection method. The GluCl gene sequence in a tetranychus urticae population collected from a field is analyzed to find that a new mutation site T76S exists on a GluCl2 subunit, the mutation exists in a field population with multiple abamectin resistance, and the mutation frequency of the site is increased after abamectin treatment. In the process of identifying the mutation site, the mutation site is identified; according to the present invention, the specific recognition site (T 'CAG) of the DdeI restriction enzyme in the sequence is identified, such that the amplification primer is designed, the PCR-RFLP method for T76S mutation site detection is established, and the method has characteristics of rapid enzyme digestion reaction, simple operation, pollution resistance, short time, accurate experiment result, and easy determination.

The present invention belongs to the field of microbial pesticide technology and discloses a strain of Bacillus thuringiensis ZYLT064 with highly effective insecticidal activity against cotton aphids and two-spotted spider mites, and its application. The strain of the present invention has a deposit number of CCTCC NO: M 20242335 at the China Center for Type Culture Collection. The strain can produce thuringiensis and trans-aconitic acid insecticidal active substances, and its fermentation supernatant exhibits significant insecticidal activity against cotton aphids and two-spotted spider mites. The mortality rate of cotton aphids fed in laboratory tests reached 87%, the mortality rate of two-spotted spider mites reached 80.9%, and the mortality rate of two-spotted spider mites tested in greenhouse pots reached 72.5%. Therefore, the strain of the present invention has the potential to be developed into a multifunctional biological control product and has broad application prospects.

This invention discloses a pseudo-leucane-type diterpenoid compound, its extraction method, and its application, belonging to the field of insecticide technology. The compound is extracted from the whole plant of *Euphorbia pekinensis*, and the extract is obtained by repeated soaking and concentration in methanol. It is then dissolved in water at 40°C and successively extracted with petroleum ether and ethyl acetate. The extract is purified through multiple steps to obtain 16 pseudo-leucane-type diterpenoid compounds with different structures. This series of compounds can be used as active ingredients in the preparation of insecticides, exhibiting good insecticidal activity against various pests such as *Tetranychus two-spotted*, *Tetranychus carmine*, aphids, and diamondback moths at a concentration of 100 mg / L. Compound 13 showed a 48-hour lethality of 89.14% against *Tetranychus two-spotted*. Furthermore, these compounds are characterized by low toxicity, easy degradation, and environmental friendliness, making them suitable for pest control in green agriculture.

The invention relates to a chlorfenapyr-containing acaricidal composition as well as a preparation method and application thereof, and relates to the technical field of pesticides, the acaricidal composition comprises a first active component and a second active component, the first active component comprises chlorfenapyr, the second active component comprises acequinocyl, and the acaricidal composition is prepared from the first active component and the second active component. The mass ratio of the first active component to the second active component is (15: 1)-(1: 5). The acaricidal composition provided by the invention is reasonable in component, remarkable in synergistic effect, good in insecticidal effect, low in medication cost and safe to crops, can prevent and control mites such as tetranychus urticae, tetranychus cinnabarinus, panonychus citri and cotton spider mites, has a good prevention effect, and can delay the generation of drug resistance of pest mites.

The invention belongs to the technical field of molecular detection, and particularly relates to a GluCl2 subunit mutation site-based detection reagent for drug resistance of spider mites to abamectin and a PCR-RFLP (polymerase chain reaction-restriction fragment length polymorphism) detection method. The GluCl gene sequence in a tetranychus urticae population collected from a field is analyzed to find that a new mutation site T76S exists on a GluCl2 subunit, the mutation exists in a field population with multiple abamectin resistance, and the mutation frequency of the site is increased after abamectin treatment. In the process of identifying the mutation site, the mutation site is identified; according to the present invention, the specific recognition site (T 'CAG) of the DdeI restriction enzyme in the sequence is identified, such that the amplification primer is designed, the PCR-RFLP method for T76S mutation site detection is established, and the method has characteristics of rapid enzyme digestion reaction, simple operation, pollution resistance, short time, accurate experiment result, and easy determination.

The application belongs to the technical field of molecular detection, and particularly relates to a detection reagent for detecting the resistance of a spider mite to abamectin based on a mutation site of a GluCl2 subunit and a PCR-RFLP detection method. GluCl Gene sequence analysis finds that there is a new mutation site T76S on the GluCl2 subunit, the mutation exists in multiple abamectin-resistant field populations, and the mutation frequency of the site is increased after abamectin treatment. In the process of identifying the above mutation site, it is found that there is a specific recognition site (T'CAG) of DdeI restriction endonuclease in the sequence, and thus an amplification primer is designed, and a PCR-RFLP method for detecting the T76S mutation site is established. The method is fast in enzyme digestion reaction, simple in operation, not easy to be contaminated, short in time cost, accurate in experimental results, and easier in judgment method.