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CN-122004215-A - Application of nocarpus chinensis as rice brown planthopper attractant and attractant

CN122004215ACN 122004215 ACN122004215 ACN 122004215ACN-122004215-A

Abstract

The invention belongs to the technical field of pest control, and relates to application of nocardione as an attractant for brown planthoppers of rice and the attractant. The attractant is a solution containing a nocardianone efficacy component, and the nocardianone is a natural component, green and safe. The application of the nocardianone as the brown planthopper attractant can directly spray the attractant on rice plants, utilize the volatility of the nocardianone or load the nocardianone on a slow-release carrier to prepare a lure, and then utilize the lure to release the nocardianone so as to lure the brown planthoppers. The verification of the invention shows that the nocardomethyl can be used as an 'attracting trap' for green prevention and control of brown planthoppers, and the spawning quantity and the feeding quantity of female adults are reduced by attracting the brown planthoppers, so that a good prevention effect is generated, and a new direction is provided for green prevention and control of the brown planthoppers.

Inventors

  • LI CHENGZHE
  • LIU CHUNLING
  • BIAN FANGYUAN
  • ZHOU GUOXIN
  • ZHANG HUIHONG

Assignees

  • 浙江农林大学

Dates

Publication Date
20260512
Application Date
20260414

Claims (10)

  1. 1. The application of nocardione as the brown planthopper attractant is characterized in that the efficacy component of the brown planthopper attractant contains nocardione.
  2. 2. Use of nocardinone according to claim 1 as a brown rice planthopper attractant, wherein the efficacy component of the brown rice planthopper attractant is a single nocardinone component.
  3. 3. Use of nocarpus oryzae attractant according to claim 1, wherein the brown planthopper attractant is a solution comprising the potent component, and wherein the solvent of the solution is a volatile solvent.
  4. 4. Use of nocarpus altaicus as an attractant for brown planthoppers according to claim 3, wherein the volatile solvents comprise one or more of acetone, dichloromethane, ethyl acetate and ethanol.
  5. 5. The use of nocardione according to claim 3 as a brown planthopper attractant for rice, wherein the concentration of the solution is 5-200 mg/L.
  6. 6. An attractant, characterized in that the nocarpus oryzae attractant is used as the nocarpus oryzae attractant in any one of claims 1-5.
  7. 7. Use of the attractant according to claim 6 for controlling brown planthoppers of rice, wherein nocarpus oryzae is induced by releasing nocarpus oryzae by spraying the attractant directly onto rice plants.
  8. 8. Use of the attractant according to claim 6 for preventing and controlling brown planthoppers of rice, wherein the attractant is manufactured into a lure, and the lure is placed in a rice field to release nocardione so as to attract brown planthoppers of rice.
  9. 9. The use of the attractant according to claim 8 for controlling brown planthoppers of rice, wherein the attractant is loaded on a slow release carrier, and the slow release carrier is placed in a slow release device to obtain the lure.
  10. 10. Use of an attractant according to claim 9 for controlling brown planthoppers in rice, wherein the slow release carrier comprises lanolin.

Description

Application of nocarpus chinensis as rice brown planthopper attractant and attractant Technical Field The invention belongs to the technical field of pest control, relates to a rice brown planthopper control technology, and in particular relates to application of nocaroxone as a rice brown planthopper attractant and the attractant. Background Rice is an important grain crop in China, and brown planthoppers are important pests on rice. Brown planthoppers can also spread diseases by eating and spawning to cause rice damage, and the rice yield is greatly reduced when serious. Brown planthoppers are monophagic pests, and can only eat and reproduce offspring on rice and common wild rice, and eat and consume adults and nymphs at the lower part of rice plants. Sucking the phloem juice with sucking mouth parts consumes the nutrition and moisture of rice plants, and leaves brown scars and spots on the rice plants, which can cause dead lodging of rice plants in severe cases, commonly called roof fall, roof penetrating and lice burning, resulting in serious yield reduction and even sterilization. The oviposition device is used for piercing stem tissues when female insects spawn, so that a large number of wounds are caused, water is promoted to be lost, favorable conditions are created for invasion of germs, and damages such as banded sclerotial blight and the like are aggravated. The rice plants polluted by honeydew are also excreted in the sucking process, the tobacco mould grows, and when the rice plants are serious, the parts below 1/3 of the rice clusters are blackened to become black stalks, and soil nearby the basal part is always blackened, so that the rice plants are an important sign of serious damage to brown planthoppers. At present, the control of brown planthoppers generally adopts a policy of 'prevention in advance and comprehensive control'. In recent years, researches on control methods of brown planthoppers have been focused on RNA interference pesticides or gene targeting control. For example, patent document CN119570799B discloses a brown planthopper lethal gene NLpfam and application thereof in biological control, wherein brown planthopper lethal gene NLpfam can cause brown planthopper death after being interfered, dsRNA or an interfering reagent is prepared by transcription of brown planthopper lethal gene NLpfam, NLpfam genes can be effectively interfered after being injected into brown planthopper, abdomen of brown planthopper is blackened, brown planthopper can be effectively killed, and biological control on brown planthopper is realized. Patent document CN119285733A discloses application of brown planthopper NLCP6 protein and encoding genes thereof in regulating and controlling plant brown planthopper resistance, and relates to the technical field of genetic engineering control of rice brown planthoppers. In the document, the expression of the coding gene of NLCP protein in brown planthopper body is inhibited, so that the growth and development of brown planthopper can be obviously inhibited, and the over-expression vector of the gene is constructed and transferred into rice plants aiming at the over-expression of the brown planthopper NLCP gene, so that the brown planthopper resistance of the plants is greatly improved, and the weight gain and the survival rate of insects after the brown planthopper feeds the transgenic plants are obviously reduced. The pest control method based on gene operation has the advantages of high specificity and environmental friendliness, but has the defects and challenges of difficult development, high cost, slow effect and the like. In addition, some researchers have focused their control on green control measures for pest control using non-host plant volatiles. For example, patent document CN108207949a discloses an application of an alcohol compound in controlling brown planthoppers, wherein the alcohol compound in the document shows a strong repellent activity on brown planthoppers, and the repellent rate reaches 94.42% at a concentration of 100 μg/cm 2, which is remarkably higher than that of a commercial product of mosquito repellent amine DEET with the same concentration. The alcohol compound is a plant source extract which is screened from traditional Chinese herbal medicines and has the function of repelling brown planthoppers or refusing food, and can be used for developing brown planthopper repellents derived from traditional Chinese herbal medicines. Patent document CN116649333B discloses a method for preventing and controlling brown planthoppers of rice based on slow-release type nano matrine, and belongs to the field of nano pesticides. In the literature, matrine is loaded in a mesoporous structure of mesoporous silicon, then chitosan is used for encapsulation, slow-release nano matrine is obtained, and then the slow-release nano matrine is prepared into slow-release nano matrine solution, and then the slow-release nano matrine is applied to rice see