Comprehensive control method for pitaya root-knot nematode

A root-knot nematode, comprehensive control technology, applied in the field of plant protection, can solve the problems of poor thiazophosphine control effect, rising control cost, economic loss, etc., and achieve the effects of improving the utilization rate of chemical fertilizer, reducing the incidence rate and reducing environmental damage

Active Publication Date: 2022-07-08
SOUTH ASIAN TROPICAL AGRI SCI RES INST OF GUANGXI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pitaya root-knot nematode serious plots will reduce production in large quantities, causing serious economic losses
At present, in the production of dragon fruit, root-knot nematodes are mainly controlled by thiazole phosphine. Due to the continuous use of the same chemical agent year after year, the concentration of thiazole phosphine is getting higher and higher, and the cost of prevention and control is also increasing year by year. Phosphine control becomes less effective and root-knot nematodes develop resistance

Method used

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  • Comprehensive control method for pitaya root-knot nematode
  • Comprehensive control method for pitaya root-knot nematode
  • Comprehensive control method for pitaya root-knot nematode

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Experimental program
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Effect test

Embodiment 1

[0040] In 2019, 10 mu of newly planted dragon fruit plot in Longzhou County, Chongzuo City was selected for dragon fruit planting, and the following control methods for dragon fruit root-knot nematodes were adopted:

[0041] a) For the prevention of newly planted pitaya plots, in March, before planting pitaya and after raising the ridge, mix the organic fertilizer and thiazophosphine granules with the soil evenly; The amount of organic fertilizer is 2 tons per mu. Then normal dragon fruit planting is carried out, and an average of 1,000 dragon fruit plants are planted per acre for daily planting management.

[0042] B) prevention after dragon fruit is planted, each year in early April and early September, respectively, drenching and applying biological inoculants once to prevent root-knot nematodes from occurring, directly drenching and applying to the root of each dragon fruit;

[0043] The biological inoculum was sprayed with Paecilomyces lilacinus, Bacillus subtilis, and b...

Embodiment 2

[0052] In the pitaya planting base in Shangdeng Village, Natong Town, Long'an County, Nanning City, Guangxi, in September 2020, 82 pitaya plants showed initial symptoms of pitaya root-knot nematode; due to the ineffectiveness of traditional methods in the early control process, another 35 A dragon fruit plant has developed late symptoms of dragon fruit root-knot nematode. Rescue measures were taken for the planting base where 117 pitaya root-knot nematode symptoms appeared. The specific method is as follows:

[0053] (1) First use the chemical for root application, and spray the main root and the soil within 20 cm of the main root; the chemical is 30% thiazophosphine microcapsule emulsion 500ml / mu, 90% sodium naphthalene acetate 20ppm, indole acetic acid 10ppm, 30% formazan 1000 times liquid of Frost·Hammeling suspension agent, mix the agent with water, the water consumption per mu is 1t, and then carry out drench fertilization, including the root-knot nematode symptomatic pl...

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Abstract

The invention discloses a comprehensive prevention and control method for pitaya root-knot nematodes, which comprises the following three steps: (1) daily prevention of pitaya root-knot nematodes, combination of prevention and control by adopting a biological agent and supplement of a nutrient solution, (2) initial prevention and control of pitaya root-knot nematodes, and prevention and control by adopting spraying of an agent, and (3) later prevention and control of pitaya root-knot nematodes, combination of root cutting and new root system culture. A biological agent is introduced for prevention and treatment; by adjusting measures to local conditions and performing targeted prevention and treatment according to the disease condition of a planting field, the method is good in prevention and treatment effect and relatively long in prevention and treatment period, can effectively reduce and reduce the occurrence probability of pitaya root knot nematode diseases, and can quickly rescue pitaya plants with diseases, recover production and reduce production loss.

Description

technical field [0001] The invention belongs to the technical field of plant protection, and in particular relates to a method for preventing and controlling dragon fruit root-knot nematodes. Background technique [0002] Dragon fruit is a cultivar of the cactus family and the genus Lesothorax. It climbs succulent shrubs. Its fruit is rich in nutrients and is very popular among consumers. Dragon fruit cultivation has high economic benefits. Calculated, the output value per mu can reach 15,000-25,000 yuan, and the dragon fruit is put into production quickly, and the annual output can reach 1,500-3,000 kilograms. According to relevant statistics, the domestic planting area will reach 1 million mu by 2020, forming the main planting areas with Guangxi, Guangdong, Hainan, Yunnan and Guizhou as the core. [0003] Due to the continuous expansion of the area of ​​dragon fruit, the occurrence of dragon fruit diseases and insect pests is also more and more serious, among which the oc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G13/00A01G22/05A01G31/00A01N57/32A01N63/30A01N63/22A01N65/20A01P21/00A01P5/00C05G3/00C05G3/60
CPCA01G13/00A01G22/05A01G31/00A01N57/32A01N63/30A01N63/22A01N65/20C05G3/00C05G3/60Y02P60/21
Inventor 唐景美韦优卓福昌黄丽君赵静周彩霞蒋娟娟卢美瑛孔方南颜桢灵周之珞韦雪英周婧罗培四李文砚
Owner SOUTH ASIAN TROPICAL AGRI SCI RES INST OF GUANGXI
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