CN114711078A - Method for reducing citrus reiculata Blanco canker disease damage - Google Patents

Abstract

The invention discloses a method for reducing the harm of an Or canker disease, which comprises the following steps: s1, preventive pesticide application is carried out when the citrus aurantium tender shoots grow to 2-3 cm; s2, clearing the garden, manually removing all the citrus woolly leaves with canker in the canker outbreak period, and intensively treating the removed leaves; s3, secondary prevention, wherein during the growth high-incidence period, inorganic copper is adopted for continuous pesticide application and continuous pesticide application; s4, managing water and fertilizer, namely managing the water and fertilizer of the Wo citrus trees after the second pesticide application in the Wo citrus garden is finished; s5, spraying on leaf surfaces, namely spraying a potassium phosphite solution on the Or seedlings for biological control; and S6, arranging a wind-proof wall or a wind-proof forest at the periphery of the orchard, reducing the wind speed of the orchard, and reducing the wind injury of branches. The invention can prevent the ulcer disease in one step before the ulcer disease appears and treat the ulcer disease again after the ulcer disease appears, thereby greatly reducing the probability of infection and facilitating the growth of the citrus aurantiaca.

Description

Method for reducing citrus reiculata Blanco canker disease damage

Technical Field

The invention relates to the technical field of fruit tree cultivation, in particular to a method for reducing the harm of citrus reiliana canker.

Background

The Or citrus hybrid is one of hybrid citrus varieties which are just grown in the south of China. Originated in Israel and introduced to the United states, Korea, Chongqing, Guangxi, etc. Has the characteristics of beautiful appearance, high sugar content in late ripening, high yield and quality in early fruiting, strong tree vigor, cold resistance, drought resistance, no burning in the sun, basically no fruit drop in the later period, storage and transportation resistance, harvesting in a low-season fruit and the like. According to statistics, the yield per mu of the three-year-old Wo citrus fruit trees exceeds 5000kg, the economic benefit is quite high, the market development prospect is wide, and the method is suitable for being used as a late-maturing citrus variety to be popularized and tested in various places in Yunnan of Guangxi province.

Canker often appears in the planting process of the Or, the Or is mainly characterized in that more young shoots of the Or are extracted, the aging of the leaves is relatively slow, the characteristic gives good opportunity for canker, in the growing period of the Or, the canker generally only invades tender tissues in a certain development stage, and does not infect or infects less tender shoots and tender leaves which are just extracted and aged tissues. The pores of the young and tender tissues are not formed, most of the original pores of the aged tissues are aged, the intermediate space is extremely small or closed, and the invasion of pathogenic bacteria is difficult. Generally, when the young shoots of the Or citrus grow to more than 2cm, the disease begins to infect, and the incidence rate increases with the growth of the young shoots. The water-wet condition is favorable for propagation and propagation of pathogenic bacteria, and when the new shoots are taken out in spring and rain falls frequently, the propagation strength of diseases is influenced by the amount of rain and the temperature. In summer and autumn, the shoots are high in temperature and rainy, if the shoots are high in nitrogen and less in potassium, the shoots grow vigorously and more in vain, so that the disease spots are larger and the disease is more serious. Therefore, how to prevent and treat the citrus reiliana canker is one of the directions that have been studied by those skilled in the art.

Disclosure of Invention

The invention aims to provide a method for reducing the harm of the ulcer disease of Or citrus, which can be used for preventing the ulcer disease in one step before the ulcer disease occurs and treating the ulcer disease again after the ulcer disease occurs, thereby greatly reducing the probability of infection and facilitating the growth of Or citrus.

In order to solve the technical problem, the invention adopts the following technical scheme:

a method for reducing the risk of an orange ulcer disease, comprising the steps of:

s1, preventive pesticide application, wherein preventive pesticide spraying is carried out when young buds of the Or citrus grows to 2-3cm, and inorganic copper reagents are used for carrying out pesticide application treatment on the Or citrus;

s2, clearing the garden, manually removing all the citrus woolly leaves with canker in the canker outbreak period, and intensively treating the removed leaves;

s3, secondary prevention, wherein during the period of high growth rate, inorganic copper is adopted for continuous pesticide application, the pesticide application is carried out once in 7-10 days, and the pesticide application is carried out 3-10 times continuously;

s4, managing water and fertilizer, namely after finishing the second pesticide application in the citrus reticulata garden, managing the water and fertilizer of the citrus reticulata, and adopting a high-nitrogen water-soluble fertilizer during the young tree period, wherein the mixing ratio of nitrogen, phosphorus and potassium is 30:10:10, and the mixing ratio of nitrogen, phosphorus and potassium of the growing citrus reticulata is 10:10: 10;

s5, spraying on leaf surfaces, namely spraying a potassium phosphite solution on the Or seedlings for biological control;

and S6, arranging a wind-proof wall or a wind-proof forest at the periphery of the orchard, reducing the wind speed of the orchard, and reducing the wind injury of branches.

Further, in the step S1, the inorganic copper chemical is one of copper hydroxide, copper oxychloride, copper calcium sulfate and bordeaux mixture, and 133g to 200g of 77% wettable powder is mixed with 75kg to 100kg of water.

Further, in the step S2, manually removing all the leaves of the citrus reiliana with canker, and bringing the leaves out of the orchard for landfill treatment; and S3, selecting different pesticides according to garden characteristics, such as red spiders easily available in gardens, and adopting organic copper pesticides for preventing and treating, and adopting inorganic copper pesticides for preventing and treating.

Further, the organic copper is one of copper acetate, thiencone and thiencone.

Further, in the step S5, mixing the potassium phosphite solution with the mixing ratio of 40ml to 80ml with 15kg of the aqueous solution, spraying onto the leaves of the citrus reticulata for 3 to 5 days, and continuing for 3 times.

Further, in the step S6, the wind-proof wall is set at a position 5 meters away from the periphery of the orchard, the wind-proof wall includes a fixing frame, a supporting frame, a wind-proof plate and a connecting block, the fixing frame is provided with a plurality of supporting bars at the upper part, and the supporting bars are provided with a placing groove and the wind-proof plate connected with the placing groove; one side of the fixing frame is provided with a supporting frame, the middle part of the supporting frame is provided with a plurality of connecting rods, the lower parts of the fixing frame and the supporting frame are provided with a placing plate, and the placing plate is provided with a plurality of limiting holes.

Furthermore, sliding strips are arranged at two ends of the windproof plate, the windproof plate is in sliding connection with the arrangement grooves in the fixing frame through the sliding strips at the two ends, and a sealing block is arranged right above the fixing frame; the both ends of mount are provided with the connecting block, and the connecting block is connected with another mount through the connecting axle.

Further, in the step S4, the water and fertilizer are mixed and fertilized according to the corresponding proportion of nitrogen, phosphorus and potassium, when the old buds are greener and the new buds are tender green, the mixing proportion of nitrogen, phosphorus and potassium is 30:10:10, and when the whole leaves are yellow, the mixing proportion is 15:10: 15; in the water and fertilizer management and irrigation, the irrigation time is 7-10 days, and functional bacterial fertilizers, such as microbial fertilizers containing bacillus subtilis and gloiopeltis, are matched in the irrigation process, so that the fertilizer can be absorbed more favorably.

Compared with the prior art, the invention has the following beneficial effects:

1. and 4, carrying out preventive pesticide spraying when the young buds of the citrus reticulata grows to 2-3cm, spraying by adopting an inorganic copper medicament, carrying out one-step defense, removing all canker leaves in the orchard when a small amount of canker appears in the orchard, carrying out centralized treatment, preventing mutual infection under the action of wind power, and playing roles of isolation and prevention and control.

2. The method is characterized in that secondary long-time prevention and control are carried out when a large number of canker diseases occur, inorganic copper is adopted for continuous pesticide application and continuous pesticide application, water and fertilizer management is carried out simultaneously, root moisture and nutrition are enhanced, development is promoted, a windproof wall is arranged outside an orchard, and a plurality of windproof forests or windproof walls are established for the orchard with the influence of wind damage in the same direction all the year round, so that the influence caused by the wind damage can be greatly reduced.

Description of the drawings:

FIG. 1 is a schematic view of the structure of the present invention.

FIG. 2 is a schematic view showing a partial structure of the windshield of the present invention.

In the figure: 1-a fixing frame, 2-a supporting frame, 3-a connecting rod, 4-a placing plate, 5-a limiting hole, 6-a connecting block, 7-a windproof plate, 8-a placing groove, 10-a sliding strip and 11-a sealing block.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.

Example 1:

a method for reducing the risk of an orange ulcer disease, comprising the steps of:

s1, preventive pesticide application, namely performing preventive pesticide spraying when the young buds of the Or are grown to 2cm, and performing pesticide application treatment on the Or by using an inorganic copper medicament;

s2, clearing the garden, manually removing all the citrus woolly leaves with canker in the canker outbreak period, and intensively treating the removed leaves;

s3, secondary prevention, wherein during the period of high growth rate, inorganic copper is adopted for continuous pesticide application, the pesticide application is carried out once in 8 days, and the pesticide application is carried out for 6 times continuously;

s4, managing water and fertilizer, namely after finishing the second pesticide application in the citrus reticulata garden, managing the water and fertilizer of the citrus reticulata, and adopting a high-nitrogen water-soluble fertilizer during the young tree period, wherein the mixing ratio of nitrogen, phosphorus and potassium is 30:10:10, and the mixing ratio of nitrogen, phosphorus and potassium of the growing citrus reticulata is 10:10: 10;

s5, spraying on leaf surfaces, namely spraying a potassium phosphite solution on the Or seedlings for biological control;

s6, a wind-proof wall is arranged, a wind-proof wall or a wind-proof forest is arranged on the periphery of the orchard, the wind speed of the orchard is reduced, and the wound of the orchard is reduced due to wind damage to branches; the method is characterized in that preventive pesticide spraying is carried out when young buds of the citrus aurantiaca grow to 2cm, an inorganic copper medicament is sprayed, first-step defense is carried out, when canker appears in a small amount in an orchard, all canker leaves in the orchard are removed and treated in a centralized mode, mutual infection under the action of wind power is prevented, and the effects of isolation and prevention are achieved.

Example 2:

this example further describes the step S1 on the basis of the conventional example 1, in the step S1, the inorganic copper chemical is one of copper hydroxide, copper oxychloride, calcium copper sulfate and bordeaux mixture, and 160g of 77% wettable powder is mixed with 90kg of water; in the step S2, manually removing all the leaves of the citrus reiliana with canker, and carrying out landfill treatment outside the orchard; s3, selecting different medicaments according to the characteristics of the garden, such as red spiders easily available in the garden, and adopting organic copper medicaments for prevention and treatment, and adopting inorganic copper medicaments for prevention and treatment; the organic copper is one of copper acetate, Thiosen copper and Thiodiazole copper; the copper hydroxide preparation is an inorganic copper protective bactericide and is a medicament with the smallest harm of the copper preparation and the traditional Chinese medicine; after the bactericide is applied, the protease of the germs is quickly destroyed to cause the germs to die, a layer of protective film can be formed on the surface of the plant, and when the red spiders easily grow in gardens, the organic copper preparation is adopted, so that the bactericide can achieve protective sterilization and can inhibit the red spiders from generating.

Example 3:

in this embodiment, the step S5 is further described based on the conventional example 1, in the step S5, a potassium phosphite solution with a mixing ratio of 40ml to 80ml is mixed with 15kg of an aqueous solution, and the leaves of the woolly orange are sprayed, and the spraying is continued for 3 times in 4 days; the potassium phosphite is a novel environment-friendly high-phosphorus high-potassium type full water-soluble fertilizer, and 3-valent phosphorus in phosphite ions can be transported through leaves, root systems, xylem and phloem in multiple channels, so that the potassium phosphite and potassium element can achieve excellent synergy, and absorption and utilization of nutrition are accelerated. Has the effects of inhibiting bacteria, preventing diseases, controlling tip strengthening, promoting flower and fruit setting, enlarging fruits, increasing yield and the like.

Example 4:

in this embodiment, the wind-proof wall is further described on the basis of the existing embodiment 1, in the step S6, the wind-proof wall is set at a position 5 meters away from the periphery of the orchard, the wind-proof wall includes a fixing frame 1, a supporting frame 2, a wind-proof plate 7 and a connecting block 6, the fixing frame 1 is provided with a plurality of supporting bars 7 at the upper part, and the supporting bars 7 are provided with placing grooves 8 and wind-proof plates 7 connected with the placing grooves 8; a supporting frame 2 is arranged on one side of the fixing frame 1, a plurality of connecting rods 3 are arranged in the middle of the supporting frame 2, a placing plate 4 is arranged on the lower portions of the fixing frame 1 and the supporting frame 2, and a plurality of limiting holes 5 are formed in the placing plate 4; the two ends of the windproof plate 7 are provided with sliding strips 10, the windproof plate 7 is in sliding connection with the arrangement grooves 8 on the fixed frame 1 through the sliding strips 10 at the two ends, and the right upper part of the fixed frame 1 is provided with a sealing block 11; the two ends of the fixed frame 1 are provided with connecting blocks 6, and the connecting blocks 6 are connected with another fixed frame through connecting shafts; for orchards with the influence of wind damage in the same direction throughout the year, some windproof forests or windproof walls are established, so that the influence caused by wind damage can be greatly reduced; adopt the combination formula to prevent wind the wall, can settle the polylith through the spout on the mount and prevent wind the board, it is convenient not only to assemble, and is convenient for carry and remove.

Example 5:

in this embodiment, a step S4 of the slider is further described based on the existing embodiment 1, in the step S4, the water and fertilizer are mixed and fertilized according to the corresponding proportion of nitrogen, phosphorus and potassium, when the old bud is greener and the new bud is greener, the mixing proportion of nitrogen, phosphorus and potassium is 30:10:10, and when the whole leaves are yellowish, the mixing proportion is 15:10: 15; in the water and fertilizer management and irrigation, the irrigation time is 7-10 days, and functional bacterial fertilizers such as microbial fertilizers containing bacillus subtilis and gloeostereum sp are matched in the irrigation process, so that the fertilizer can be absorbed more easily; in the water and fertilizer management, the adding proportion of nitrogen, phosphorus and potassium is related to the growth vigor of plants, the mixing proportion of nitrogen, phosphorus and potassium is 1:1:1 under the condition of good development, and the adjusting proportion is judged according to different growth vigors and the color of leaves.

Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," "a preferred embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims (8)

1. A method for reducing the risk of ulcer disease of Or comprises the following steps:

s1, preventive pesticide application, wherein preventive pesticide spraying is carried out when the buds of the Wo oranges grow to 2-3cm, and inorganic copper agents are used for carrying out pesticide application treatment on the Wo oranges;

s2, clearing the garden, manually removing all the citrus woolly leaves with canker in the canker outbreak period, and intensively treating the removed leaves;

s3, secondary prevention, wherein during the period of high growth rate, inorganic copper is adopted for continuous pesticide application, the pesticide application is carried out once in 7-10 days, and the pesticide application is carried out 3-10 times continuously;

s4, managing water and fertilizer, namely after finishing the second pesticide application in the citrus reticulata garden, managing the water and fertilizer of the citrus reticulata, and adopting a high-nitrogen water-soluble fertilizer during the young tree period, wherein the mixing ratio of nitrogen, phosphorus and potassium is 30:10:10, and the mixing ratio of nitrogen, phosphorus and potassium of the growing citrus reticulata is 10:10: 10;

s5, spraying on leaf surfaces, namely spraying a potassium phosphite solution on the Or seedlings for biological control;

and S6, arranging a wind-proof wall or a wind-proof forest at the periphery of the orchard, reducing the wind speed of the orchard, and reducing the wind injury of branches.

2. The method for flower and fruit retention of a seedless woolly orange according to claim 1, wherein: in the step S1, the inorganic copper medicament is one of copper hydroxide, copper oxychloride, copper calcium sulfate and bordeaux mixture, and 133g to 200g of 77% wettable powder is mixed with 75kg to 100kg of water.

3. The method for flower and fruit retention of a seedless woolly orange according to claim 1, wherein: in the step S2, manually removing all the leaves of the citrus reiliana with canker, and carrying out landfill treatment outside the orchard; and S3, selecting different pesticides according to garden characteristics, such as red spiders easily available in gardens, and adopting organic copper pesticides for preventing and treating, and adopting inorganic copper pesticides for preventing and treating.

4. The method for flower and fruit retention of a seedless woolly orange according to claim 3, wherein: the organic copper is one of copper acetate, Thiosen copper and thiediazole copper.

5. The method for flower and fruit retention of a seedless woolly orange according to claim 4, wherein the method comprises the following steps: and in the step S5, mixing the potassium phosphite solution with the mixing proportion of 40-80 ml with 15kg of aqueous solution, spraying onto the leaves of the Or, and spraying for 3-5 days for 3 times.

6. The method for flower and fruit retention of a seedless woolly orange according to claim 1, wherein: the windproof wall is arranged at the position 5 meters away from the periphery of the orchard in the step S6 and comprises a fixing frame (1), a supporting frame (2), windproof plates (7) and connecting blocks (6), the upper part of the fixing frame (1) is provided with a plurality of supporting bars (7), and the supporting bars (7) are provided with accommodating grooves (8) and the windproof plates (7) connected with the accommodating grooves (8); one side of the fixing frame (1) is provided with a supporting frame (2), the middle part of the supporting frame (2) is provided with a plurality of connecting rods (3), the lower parts of the fixing frame (1) and the supporting frame (2) are provided with a placing plate (4), and the placing plate (4) is provided with a plurality of limiting holes (5).

7. The method for flower and fruit retention of the seedless Or citrus, as claimed in claim 6, wherein: the two ends of the windproof plate (7) are provided with sliding strips (10), the windproof plate (7) is in sliding connection with the arrangement groove (8) on the fixing frame (1) through the sliding strips (10) at the two ends, and the right upper part of the fixing frame (1) is provided with a sealing block (11); the two ends of the fixing frame (1) are provided with connecting blocks (6), and the connecting blocks (6) are connected with another fixing frame through connecting shafts.

8. The method for flower and fruit retention of a seedless woolly orange according to claim 1, wherein: in the step S4, the water and fertilizer are mixed and fertilized according to the corresponding proportion of nitrogen, phosphorus and potassium, when the mixture is carried out, if the old buds are greener, the new buds are tender green, the mixing proportion of nitrogen, phosphorus and potassium is 30:10:10, and if the whole leaves are yellow, the mixing proportion is 15:10: 15; in the water and fertilizer management and irrigation process, the irrigation time is 7-10 days, and functional bacterial fertilizers such as microbial fertilizers containing bacillus subtilis and gloeostereum sp are matched in the irrigation process, so that the fertilizer can be absorbed more favorably.

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