Planting method for comprehensive control of citrus Huanglongbing

A technology of integrated control and planting methods, applied in the field of plant disease prevention and control, can solve the problems affecting the sustainable development of the citrus industry, the reduction of farmers' income, economic losses, etc.

Active Publication Date: 2021-08-06
深圳绿欣农业环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to incomplete statistics, more than 40 million diseased trees in Guangdong, Guangxi and Fujian have been cut down due to infection, which not only caused economic losses, reduced farmers' income, but also affected the prospects for the sustainable development of the local citrus industry.
[0003] The prior art prevents and controls citrus greening disease by strengthening the quarantine of seedlings, cutting down diseased trees, spraying chemical pesticides to kill psyllids, and establishing new disease-free orchards. Production reduction and quality decline, the economic loss caused by fruit farmers due to production reduction and loss of harvest

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0108] Biopesticide adopts compound plant source nanopesticide, is prepared by following preparation method, comprises the following steps:

[0109] 1. At room temperature (25°C), in parts by mass, take 200-400 parts of the extract solution of main material A, 200-300 parts of the extract solution of main material B, and 100-200 parts of the extract solution of main material C. 100-200 parts of the extract of material D, mix well, add 100-200 parts of nano-montmorillonite powder, stir evenly, and let it stand in the storage tank for 12-36 hours, stirring 1-2 times during the period.

[0110] 2. After stirring, filter with a 200-mesh filter to obtain a composite plant-derived nano-pesticide.

[0111] In the embodiment of the present invention, the nano-montmorillonite powder of Guangyang Environmental Protection Biotechnology (Hong Kong) Co., Ltd. is used. The particle size of the nano-montmorillonite powder is not more than 100nm, the density is 2.0~2.8g / cm3, the pH value is 6...

Embodiment 1

[0161] Citrus greening disease occurred in Sanhong pomelo (pomelo) park in Lingao County, Hainan Province. The pomelo tree was 2.5 years old, which was a young tree.

[0162] 1. After harvesting

[0163] After harvesting the fruit, from November, cut off the diseased branches, dead branches, diseased leaves, diseased fruits and clean the fallen leaves of the honey pomelo tree, and take them away from the park for centralized burning. Then spray lime sulfur disinfectant on the whole garden to sterilize and kill insects.

[0164] After 10 days of sterilization and deinsectization in the whole garden, fertilizers were applied to the ground and above the ground at the same time.

[0165] (1) Underground fertilization, starting from the drip line of the canopy of each citrus tree, dig a pit outward, with a width of 10 cm and a depth of 30 cm, forming a ring-shaped root circle, and evenly sprinkle mineral element-based soil amendments and bio-organic fertilizers in the pit After c...

Embodiment 2

[0190] In a Shatian pomelo garden where citrus Huanglongbing occurred in Meixian County, Guangdong Province, the adult trees were 8 years old and belonged to the full fruit stage.

[0191] 1. After harvesting

[0192] After harvesting fruits in autumn and before winter, starting from November, first cut off diseased branches, dead branches, diseased leaves, diseased fruits, and clean fallen leaves, and take them away from the park for centralized burning. Then spray lime sulfur disinfectant on the whole garden to sterilize and kill insects.

[0193] After 12 days of sterilization and deinsectization in the whole garden, fertilizers were applied to the ground and above the ground at the same time.

[0194] (1) Underground fertilization, starting from the drip line of the canopy of each citrus tree, dig a pit outward, the pit is 20 cm wide and 40 cm deep, forming a ring-shaped root circle, and evenly sprinkle mineral element-based soil amendments and bio-organic fertilizers in ...

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PUM

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Abstract

The invention discloses a planting method for comprehensive prevention and treatment of citrus huanglongbing, and the technical problem to be solved is to prevent and control citrus huanglongbing. The planting method of the present invention includes: fertilizing underground in spring, fertilizing on the ground, pruning branches and leaves, applying biological pesticides, spraying or dripping liquid fertilizer after flowering, spraying diluted foliage fertilizer, pruning branches and leaves, spraying or dripping liquid fertilizer during the fruit expansion period , Spray diluted foliage fertilizer, trim branches and leaves, cut off diseased branches, dead branches, diseased leaves and diseased fruits after harvesting, sterilize and eliminate insects. Compared with the prior art, the present invention carries out comprehensive prevention and control in the citrus park, increases the organic matter and mineral elements in the soil, improves the water and fertilizer retention capacity of the soil, and three-dimensional fertilization supplies sufficient nutrients to the tree, effectively promotes the growth and development of the tree, and restores the citrus. The self-resistance ability of the tree can improve the ecological environment of the rhizosphere and the phyllosphere, cooperate with the pruning of branches and leaves, and spray biological pesticides to create a good growth condition, reduce the chance of Huanglongbing transmission, and control the spread of Huanglongbing.

Description

technical field [0001] The invention relates to a method for preventing and treating plant diseases, in particular to a method for preventing and treating citrus huanglongbing. Background technique [0002] Citrus huanglongbing is mainly caused by a bacterium named Candidatus liberibacterasiaticus, which is transmitted and spread among citrus trees by psyllids. It mainly harms the new shoots, young leaves, flowers and fruits of citrus trees. In the early stage of citrus huanglongbing, a few new shoots of citrus huanglongbing appear in the dark green crown, commonly known as "Jinhua", and the leaves appear evenly. types of symptoms. The fruit setting rate of fruit trees is extremely low, the fruit is small, deformed, and of poor quality, and some varieties have "red-nosed fruit" in the near-maturing stage. With the development of the disease, there are more and more yellow shoots, and some leaves are like mosaic leaves similar to zinc deficiency. Within 3 to 5 years, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G17/00A01C21/00A01G13/00A01N65/26A01P1/00
CPCA01C21/005A01G13/00A01G17/005A01N65/00A01N65/12A01N65/16A01N65/20A01N65/26
Inventor 陆少英
Owner 深圳绿欣农业环保科技有限公司
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