CN113854012A - Green prevention and control method for tobacco plant diseases and insect pests - Google Patents
Green prevention and control method for tobacco plant diseases and insect pests Download PDFInfo
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- CN113854012A CN113854012A CN202111054548.0A CN202111054548A CN113854012A CN 113854012 A CN113854012 A CN 113854012A CN 202111054548 A CN202111054548 A CN 202111054548A CN 113854012 A CN113854012 A CN 113854012A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
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- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
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Abstract
The invention discloses a green prevention and control method for tobacco plant diseases and insect pests. A. Soil improvement; adding an organic fertilizer, a humic acid fertilizer and a water-soluble fertilizer microbial fertilizer into soil; B. disinfecting soil in a smoke area; C. controlling the pH value of soil in the smoke area; controlling the pH value of the soil to be 6-6.5 by using quick lime or hydrated lime; D. ridging the soil in the tobacco area; E. transplanting tobacco seedlings; F. spraying water and fertilizer to the tobacco; drip irrigation under the film in the morning or at night; G. spraying and drying the pesticide; H. pest control: a movable frame is arranged between the adjacent ridges, and an insect sticking plate, a trapping agent or an insect killing lamp are movably arranged on the movable frame; I. and (3) natural enemy control: and 3, releasing the Encarsia formosa at the initial generation stage of the trialeurodes vaporariorum, and preventing and controlling Chinese chive maggots by using entomopathogenic nematodes. The invention has the advantages of prevention and control of diseases and pests of tobacco, reduction of the use amount of chemical pesticides, environmental protection, good quality of tobacco and high yield.
Description
Technical Field
The invention relates to a prevention and control method, in particular to a green prevention and control method for tobacco plant diseases and insect pests.
Background
Tobacco (scientific name: Nicotiana tabacum L.) is a plant of the genus Nicotiana of the family Solanaceae, an annual or limited perennial herb, with all glandular hairs; the root is thick and strong. The stem is 0.7-2 m high, and the base is slightly lignified. Besides being made into cigarettes, dry tobaccos, pipe tobaccos, cigars and the like for being sucked by people, the tobacco has various medical purposes.
The diseases of the tobacco mainly comprise mosaic disease, bacterial wilt and black stem disease; the main pests harmful to tobacco plants include tussores, locusts, stink bugs and aphids. Most of the existing tobacco diseases and insect pests are controlled by spraying pesticides, and a large amount of pesticides are sprayed, so that the control cost is high, the effect is poor, and the quality of tobacco can be influenced. Therefore, a green prevention and control method for tobacco plant diseases and insect pests is provided in the planting process of tobacco.
Disclosure of Invention
The invention aims to provide a green prevention and control method for tobacco plant diseases and insect pests. The invention has the characteristics of prevention and control of diseases and pests of the tobacco, reduction of the use amount of chemical pesticides, environmental protection, good quality of the tobacco and high yield.
The technical scheme of the invention is as follows: a green prevention and control method for tobacco plant diseases and insect pests comprises the following steps:
A. soil improvement: adding 40-100 parts of organic fertilizer, 10-30 parts of humic acid fertilizer and 10-30 parts of water-soluble fertilizer microbial fertilizer into 4000-6000 parts of soil in parts by weight;
B. and (3) disinfecting soil in the smoke area: in summer, removing the greenhouse film, deeply ploughing the soil, sterilizing by using ultraviolet rays in sunlight, then killing insects and sterilizing by introducing hot steam into the soil, and in winter, deeply ploughing the soil in the dam area to freeze the eggs of the pests;
C. controlling the pH value of soil in the smoke area: controlling the pH value of the soil to be 6-6.5 by using quick lime or hydrated lime;
D. ridging the soil in the tobacco area; the ridge is in a trapezoid shape, the lower bottom of the ridge is 70-80cm wide, the upper bottom of the ridge is 50-60cm high and 20-30cm high, and the distance between every two adjacent ridges is 100-110 cm;
E. transplanting tobacco seedlings: uniformly spraying 58% metalaxyl manganese zinc wettable powder 400-fold liquid 600-fold to ridges before transplanting, then covering and planting cigarettes by adopting a mulching film, wherein each ridge is planted in a single row, and the distance between tobacco seedlings is 50-60 cm;
F. tobacco water and fertilizer sprinkling irrigation: drip irrigation under the film in the morning or at night;
G. spraying and drying pesticide: spraying 40% dimethoate missible oil 800-1200 times liquid spray at a tobacco seedling stage; pouring the roots of the tobacco in the mature period by using 200IU streptomycin or 400-fold liquid of phyllobilanthus praecox wettable powder;
H. pest control: a movable frame is arranged between the adjacent ridges, and an insect sticking plate, a trapping agent or an insect killing lamp are movably arranged on the movable frame;
the movable frame comprises a horizontal support plate, rotating shafts are respectively arranged on two sides of the lower end of the horizontal support plate and are respectively connected with a trapezoidal support frame, a fixed pipe is vertically arranged in the center of the horizontal support plate, a fixed rod is vertically and movably arranged in the fixed pipe, bolt holes are uniformly distributed in the lower end of the fixed rod, and the fixed rod is movably connected in the fixed pipe through the bolt holes and a positioning bolt; the upper end of the fixed rod is connected with a placing plate, and a rain baffle plate is arranged above the placing plate through a connecting rod; the placing plate is used for placing an insect sticking plate, a trapping agent or an insect killing lamp;
I. and (3) natural enemy control: and 3, releasing the Encarsia formosa at the initial generation stage of the trialeurodes vaporariorum, and preventing and controlling Chinese chive maggots by using entomopathogenic nematodes.
In the method for green prevention and control of tobacco diseases and insect pests, in the step a, soil improvement: according to the parts by weight, 70 parts of organic fertilizer, 20 parts of humic acid fertilizer and 20 parts of water-soluble fertilizer microbial fertilizer are added into 5000 parts of soil.
In the green prevention and control method for tobacco plant diseases and insect pests, in the step E, tobacco seedling transplantation: and uniformly spraying the ridge with 500-time solution of 58% metalaxyl manganese zinc wettable powder before transplanting.
In the green prevention and control method for tobacco plant diseases and insect pests, in the step G, pesticide spraying: spraying 1000 times of 40% dimethoate emulsifiable solution for spraying at the tobacco seedling stage; and (3) irrigating roots with 500 times of liquid of 200IU streptomycin or phyllobis wettable powder in the tobacco mature period.
In the green prevention and control method for tobacco plant diseases and insect pests, in the step H, the lower bottom of the trapezoidal support frame is 10-30cm longer than the upper bottom; the fixed rod is welded with the center of the lower end face of the placing plate and is perpendicular to the placing plate; the upper end face of the placing plate is provided with a rain baffle through four connecting rods, and the four connecting rods are vertically arranged.
In the green prevention and control method for the tobacco plant diseases and insect pests, in the step H, the movable frame is placed between the adjacent ridges, and the lower ends of the trapezoidal support frames are respectively arranged close to the bottoms of the adjacent ridges.
In the green prevention and control method for tobacco insect pests, in the step F, corresponding natural enemies are thrown according to the tobacco insect pests.
Compared with the prior art, the invention has the following beneficial effects:
the invention improves soil: according to the weight parts, 40-100 parts of organic fertilizer, 10-30 parts of humic acid fertilizer and 10-30 parts of water-soluble fertilizer microbial fertilizer are added into 6000 parts of soil, so that the application amount of the fertilizer is reduced, the beneficial microbial community of the soil is increased, the tobacco quality is improved, and the yield and the income are increased.
And (3) disinfecting soil in the smoke area: in summer, removing the greenhouse film, deeply ploughing the soil, sterilizing by using ultraviolet rays in sunlight, then killing insects and sterilizing by introducing hot steam into the soil, and in winter, deeply ploughing the soil in the dam area to freeze the eggs of the pests; the soil is treated by ultraviolet sterilization, high-temperature disinsection sterilization, freezing of insect eggs and the like, so that the plant diseases and insect pests of the tobacco are radically reduced.
Controlling the pH value of soil in the smoke area: the pH value of the soil is controlled to be 6-6.5 by adopting quicklime or slaked lime, so that the growth of tobacco is facilitated, and the yield is improved.
Ridging the soil in the tobacco area; the ridge is in a trapezoid shape, the lower bottom of the ridge is 70-80cm wide, the upper bottom of the ridge is 50-60cm high and 20-30cm high, and the distance between every two adjacent ridges is 100-110 cm; the flood prevention, drought prevention and ridging increase the live soil layer, improve the physical and chemical properties of the soil, improve the water storage and wall protection capability and reduce diseases; ridging reduces soil humidity, so that diseases such as tobacco black shank and virus diseases can be reduced; the ridging increases the light-receiving area of the soil, so that the ground temperature can be increased, the decomposition of nutrients and the absorption of moisture are facilitated, meanwhile, as the ground temperature is increased, the permeability of the soil is improved, the utilization rate of the fertilizer is increased, and the growth of tobacco is promoted.
Transplanting tobacco seedlings: uniformly spraying 58% metalaxyl manganese zinc wettable powder 400-fold liquid 600-fold to ridges before transplanting, then covering and planting cigarettes by adopting a mulching film, wherein each ridge is planted in a single row, and the distance between tobacco seedlings is 50-60 cm; the metalaxyl manganese zinc wettable powder is adopted to prevent and treat the tobacco black shank, and the space between tobacco seedlings is strictly controlled, so that the tobacco cannot compete for soil nutrition, and the tobacco can normally grow under good illumination.
Tobacco water and fertilizer sprinkling irrigation: drip irrigation under the film in the morning or at night, and control the fertilization regularly and quantitatively, thereby realizing water-saving and fertilizer-saving efficient irrigation. And selecting an appropriate high-quality water-soluble fertilizer according to soil nutrients and the growth period of tobacco, and accurately applying the fertilizer, thereby saving water and fertilizer by more than 20%.
Spraying and drying pesticide: spraying 40% dimethoate missible oil 800-1200 times liquid spray at a tobacco seedling stage; pouring the roots of the tobacco in the mature period by using 200IU streptomycin or 400-fold liquid of phyllobilanthus praecox wettable powder; the dimethoate missible oil is adopted to prevent and control tobacco mosaic; 200IU streptomycin or bismerthiazol wettable powder is used for preventing and treating tobacco bacterial wilt.
Pest control: a movable frame is arranged between the adjacent ridges, and an insect sticking plate, a trapping agent or an insect killing lamp are movably arranged on the movable frame;
the movable frame comprises a horizontal support plate, rotating shafts are respectively arranged on two sides of the lower end of the horizontal support plate and are respectively connected with a trapezoidal support frame, a fixed pipe is vertically arranged in the center of the horizontal support plate, a fixed rod is vertically and movably arranged in the fixed pipe, bolt holes are uniformly distributed in the lower end of the fixed rod, and the fixed rod is movably connected in the fixed pipe through the bolt holes and a positioning bolt; the upper end of the fixed rod is connected with a placing plate, and a rain baffle plate is arranged above the placing plate through a connecting rod; the placing plate is used for placing an insect sticking plate, a trapping agent or an insect killing lamp;
when the movable frame is used, the two trapezoidal support frames drive the rotating shafts to rotate respectively, the two trapezoidal support frames are opened towards two sides, the lower ends of the trapezoidal support frames are arranged close to the bottoms of the similar ridges respectively, the two trapezoidal support frames and the horizontal support plate form a triangle, the horizontal support plate is fixedly placed between the adjacent ridges, the positions of the bolt holes of the positioning bolts on the fixing rods are changed, the positions of the fixing rods in the fixing pipes are adjusted, the height of the placing plate at the upper end of the fixing rods is changed, the height of the placing plate is adjusted according to the actual growth height of tobacco, then the pest sticking plate, the attractant or the pest killing lamp is placed on the placing plate according to actual conditions, insect pests around the tobacco can be conveniently killed or trapped, the placing height of the pest sticking plate, the attractant or the pest killing lamp is reasonably adjusted, the trapping or killing efficiency is high, and the pest sticking plate, the attractant or the pest killing lamp is stably placed, The fixing is simple and convenient, and under the action of arranging the rain baffle plate above the placing plate through the connecting rod, the insect sticking plate, the attractant or the insecticidal lamp are prevented from being out of work and damaged by rain, and the use is safe and reliable; simultaneously when not needing to use the adjustable shelf, can draw together two trapezoidal support frames, extract the location bolt again, take out the dead lever in the fixed tube, the adjustable shelf of being convenient for is deposited the transport, uses next time, realizes reducing chemical pesticide use amount, effective prevention and cure insect pest, and tobacco output is high, convenience simple to use.
And (3) natural enemy control: releasing the encarsia formosa at the initial generation stage of the trialeurodes vaporariorum, preventing and controlling Chinese chive maggots by using entomopathogenic nematodes, and putting corresponding natural enemies according to the tobacco pests. The method utilizes nontoxic and harmless organisms to prevent and control plant diseases and insect pests, reduces the use of pesticides, improves the quality of tobacco, and is green and environment-friendly.
In conclusion, the invention has the beneficial effects of preventing and controlling diseases and pests of the tobacco, reducing the using amount of chemical pesticides, being green and environment-friendly, good quality of the tobacco and high yield.
Drawings
FIG. 1 is a schematic structural view of a movable frame according to the present invention;
FIG. 2 is a left side view of the invention;
fig. 3 is a schematic working diagram of the movable frame of the invention.
The labels in the figures are: the device comprises a ladder-shaped support frame 1, a rotating shaft 2, a positioning bolt 3, a fixing pipe 4, a horizontal support plate 5, a bolt hole 6, a fixing rod 7, a connecting rod 8, a rain shield 9 and a placing plate 10.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Example 1. A green prevention and control method for tobacco plant diseases and insect pests comprises the following steps:
A. soil improvement: adding 40 parts of organic fertilizer, 10 parts of humic acid fertilizer and 10 parts of water-soluble fertilizer microbial fertilizer into 4000 parts of soil according to parts by weight;
B. and (3) disinfecting soil in the smoke area: in summer, removing the greenhouse film, deeply ploughing the soil, sterilizing by using ultraviolet rays in sunlight, then killing insects and sterilizing by introducing hot steam into the soil, and in winter, deeply ploughing the soil in the dam area to freeze the eggs of the pests;
C. controlling the pH value of soil in the smoke area: controlling the pH value of the soil to be 6 by adopting quick lime or hydrated lime;
D. ridging the soil in the tobacco area; the ridges are trapezoidal, the width of the lower bottom of each ridge is 70cm, the height of the upper bottom of each ridge is 50cm, the height of each ridge is 20cm, and the distance between every two adjacent ridges is 100 cm;
E. transplanting tobacco seedlings: uniformly spraying 400-time solution of 58% metalaxyl manganese zinc wettable powder to ridges before transplanting, then covering with a mulching film to plant cigarettes, wherein each ridge is planted in a single row, and the distance between tobacco seedlings is 50 cm;
F. tobacco water and fertilizer sprinkling irrigation: drip irrigation under the film in the morning or at night;
G. spraying and drying pesticide: spraying 40% dimethoate emulsifiable solution 800 times of the liquid at the tobacco seedling stage; irrigating roots with 400 times of liquid of 200IU streptomycin or phyllobium pratense wettable powder in the tobacco mature period;
H. pest control: a movable frame is arranged between the adjacent ridges, and an insect sticking plate, a trapping agent or an insect killing lamp are movably arranged on the movable frame;
the movable frame comprises a horizontal support plate 5, two sides of the lower end of the horizontal support plate 5 are respectively provided with a rotating shaft 2, the rotating shafts 2 are respectively connected with a trapezoidal support frame 1, a fixed pipe 4 is vertically arranged in the center of the horizontal support plate 5, a fixed rod 7 is vertically and movably arranged in the fixed pipe 4, bolt holes 6 are uniformly distributed in the lower end of the fixed rod 7, and the fixed rod 7 is movably connected in the fixed pipe 4 through the bolt holes 6 and a positioning bolt 3; the upper end of the fixed rod 7 is connected with a placing plate 10, and a rain baffle plate 9 is arranged above the placing plate 10 through a connecting rod 8; the placing plate 10 is used for placing a pest sticking plate, a trapping agent or a pest killing lamp;
when the movable frame is used, as shown in figures 1-3, two rotating shafts 2 are respectively arranged at two sides of the lower end of a horizontal supporting plate 5, the rotating shafts 2 are respectively connected with trapezoidal supporting frames 1, the two trapezoidal supporting frames 1 are respectively driven to rotate to enable the two trapezoidal supporting frames 1 to be opened towards two sides, the lower ends of the trapezoidal supporting frames 1 are respectively arranged close to the bottoms of adjacent ridges, the two trapezoidal supporting frames 1 and the horizontal supporting plate 5 form a triangle, the horizontal supporting plate 5 is fixedly arranged between the adjacent ridges, then a fixed tube 4 is vertically arranged at the center of the horizontal supporting plate 5, a fixed rod 7 is vertically and movably arranged in the fixed tube 4, bolt holes 6 are uniformly distributed at the lower end of the fixed rod 7, the fixed rod 7 is movably connected in the fixed tube 4 through the bolt holes 6 and a positioning bolt 3 to change the positions of the positioning bolt holes 6 on the fixed rod 7, the position of the fixed rod 7 in the fixed pipe 4 is adjusted, so that the height of the placing plate 10 at the upper end of the fixed rod 7 is changed, the height of the placing plate 10 is adjusted according to the actual growth height of tobacco, then the pest sticking plate, the trapping agent or the insect killing lamp is placed on the placing plate 10 according to actual conditions, insect pests around the tobacco can be conveniently caught and killed or trapped and killed, the placing height of the pest sticking plate, the trapping agent or the insect killing lamp can be reasonably adjusted, the catching and killing efficiency is high, the pest sticking plate, the trapping agent or the insect killing lamp can be stably placed and simply and conveniently fixed, and the rain baffle plate 9 is arranged above the placing plate 10 through the connecting rod 8, so that the pest sticking plate, the trapping agent or the insect killing lamp can be prevented from being out of work, damaged and the like due to rainwater, and the use is safe and reliable; simultaneously when not needing to use the adjustable shelf, can draw together two trapezoidal support frames 1, extract location bolt 3 again, take out dead lever 7 in the fixed tube 4, the adjustable shelf of being convenient for is deposited the transport, uses next time, realizes reducing chemical pesticide use amount, effective prevention and cure insect pest, tobacco output is high, convenience simple to use.
I. And (3) natural enemy control: and 3, releasing the Encarsia formosa at the initial generation stage of the trialeurodes vaporariorum, and preventing and controlling Chinese chive maggots by using entomopathogenic nematodes.
Example 2. A green prevention and control method for tobacco plant diseases and insect pests comprises the following steps:
A. soil improvement: adding 70 parts of organic fertilizer, 20 parts of humic acid fertilizer and 20 parts of water-soluble fertilizer microbial fertilizer into 5000 parts of soil according to parts by weight;
B. and (3) disinfecting soil in the smoke area: in summer, removing the greenhouse film, deeply ploughing the soil, sterilizing by using ultraviolet rays in sunlight, then killing insects and sterilizing by introducing hot steam into the soil, and in winter, deeply ploughing the soil in the dam area to freeze the eggs of the pests;
C. controlling the pH value of soil in the smoke area: controlling the pH value of the soil to be 6.2 by using quick lime or hydrated lime;
D. ridging the soil in the tobacco area; the ridges are trapezoidal, the width of the lower bottom of each ridge is 75cm, the height of the upper bottom of each ridge is 55cm, the height of each ridge is 25cm, and the distance between every two adjacent ridges is 105 cm;
E. transplanting tobacco seedlings: uniformly spraying 500-time solution of 58% metalaxyl manganese zinc wettable powder to ridges before transplanting, then planting cigarettes by mulching, planting each ridge in a single row, and enabling the distance between tobacco seedlings to be 55 cm;
F. tobacco water and fertilizer sprinkling irrigation: drip irrigation under the film in the morning or at night;
G. spraying and drying pesticide: spraying 1000 times of 40% dimethoate emulsifiable solution for spraying at the tobacco seedling stage; irrigating roots with 500 times of liquid of 200IU streptomycin or phyllobium pratense wettable powder in the tobacco mature period;
H. pest control: a movable frame is arranged between the adjacent ridges, and an insect sticking plate, a trapping agent or an insect killing lamp are movably arranged on the movable frame; the structure and the using method of the movable frame are the same as those of the embodiment 1, as shown in figures 1-3;
I. and (3) natural enemy control: and 3, releasing the Encarsia formosa at the initial generation stage of the trialeurodes vaporariorum, and preventing and controlling Chinese chive maggots by using entomopathogenic nematodes.
Example 3. A green prevention and control method for tobacco plant diseases and insect pests comprises the following steps:
A. soil improvement: adding 100 parts of organic fertilizer, 30 parts of humic acid fertilizer and 30 parts of water-soluble fertilizer microbial fertilizer into 6000 parts of soil according to parts by weight;
B. and (3) disinfecting soil in the smoke area: in summer, removing the greenhouse film, deeply ploughing the soil, sterilizing by using ultraviolet rays in sunlight, then killing insects and sterilizing by introducing hot steam into the soil, and in winter, deeply ploughing the soil in the dam area to freeze the eggs of the pests;
C. controlling the pH value of soil in the smoke area: controlling the pH value of the soil to be 6.5 by adopting quick lime or hydrated lime;
D. ridging the soil in the tobacco area; the ridges are trapezoidal, the lower bottoms of the ridges are 80cm wide, the upper bottoms of the ridges are 60cm high and 30cm high, and the distance between every two adjacent ridges is 110 cm;
E. transplanting tobacco seedlings: uniformly spraying 600-time solution of 58% metalaxyl manganese zinc wettable powder to ridges before transplanting, then covering with a mulching film to plant cigarettes, wherein each ridge is planted in a single row, and the distance between tobacco seedlings is 60 cm;
F. tobacco water and fertilizer sprinkling irrigation: drip irrigation under the film in the morning or at night;
G. spraying and drying pesticide: spraying 40% dimethoate emulsifiable solution 1200 times of liquid spray at a tobacco seedling stage; filling the roots with 600 times of liquid of 200IU streptomycin or phyllobium wettable powder in the tobacco mature period;
H. pest control: a movable frame is arranged between the adjacent ridges, and an insect sticking plate, a trapping agent or an insect killing lamp are movably arranged on the movable frame; the structure and the using method of the movable frame are the same as those of the embodiment 1, as shown in figures 1-3;
I. and (3) natural enemy control: and 3, releasing the Encarsia formosa at the initial generation stage of the trialeurodes vaporariorum, and preventing and controlling Chinese chive maggots by using entomopathogenic nematodes.
Claims (7)
1. A green prevention and control method for tobacco plant diseases and insect pests is characterized by comprising the following steps: the method comprises the following steps:
A. soil improvement: adding 40-100 parts of organic fertilizer, 10-30 parts of humic acid fertilizer and 10-30 parts of water-soluble fertilizer microbial fertilizer into 4000-6000 parts of soil in parts by weight;
B. and (3) disinfecting soil in the smoke area: in summer, removing the greenhouse film, deeply ploughing the soil, sterilizing by using ultraviolet rays in sunlight, then killing insects and sterilizing by introducing hot steam into the soil, and in winter, deeply ploughing the soil in the dam area to freeze the eggs of the pests;
C. controlling the pH value of soil in the smoke area: controlling the pH value of the soil to be 6-6.5 by using quick lime or hydrated lime;
D. ridging the soil in the tobacco area; the ridge is in a trapezoid shape, the lower bottom of the ridge is 70-80cm wide, the upper bottom of the ridge is 50-60cm high and 20-30cm high, and the distance between every two adjacent ridges is 100-110 cm;
E. transplanting tobacco seedlings: uniformly spraying 58% metalaxyl manganese zinc wettable powder 400-fold liquid 600-fold to ridges before transplanting, then covering and planting cigarettes by adopting a mulching film, wherein each ridge is planted in a single row, and the distance between tobacco seedlings is 50-60 cm;
F. tobacco water and fertilizer sprinkling irrigation: drip irrigation under the film in the morning or at night;
G. spraying and drying pesticide: spraying 40% dimethoate missible oil 800-1200 times liquid spray at a tobacco seedling stage; pouring the roots of the tobacco in the mature period by using 200IU streptomycin or 400-fold liquid of phyllobilanthus praecox wettable powder;
H. pest control: a movable frame is arranged between the adjacent ridges, and an insect sticking plate, a trapping agent or an insect killing lamp are movably arranged on the movable frame;
the movable frame comprises a horizontal supporting plate (5), rotating shafts (2) are respectively arranged on two sides of the lower end of the horizontal supporting plate (5), the rotating shafts (2) are respectively connected with a trapezoidal supporting frame (1), a fixing pipe (4) is vertically arranged in the center of the horizontal supporting plate (5), fixing rods (7) are vertically movably arranged in the fixing pipe (4), bolt holes (6) are uniformly distributed in the lower ends of the fixing rods (7), and the fixing rods (7) are movably connected in the fixing pipe (4) through the bolt holes (6) and the positioning bolts (3); the upper end of the fixed rod (7) is connected with a placing plate (10), and a rain baffle plate (9) is arranged above the placing plate (10) through a connecting rod (8); the placing plate (10) is used for placing an insect sticking plate, a trapping agent or an insect killing lamp;
I. and (3) natural enemy control: and 3, releasing the Encarsia formosa at the initial generation stage of the trialeurodes vaporariorum, and preventing and controlling Chinese chive maggots by using entomopathogenic nematodes.
2. The green control method of tobacco pests according to claim 1, characterized in that: in the step A, soil improvement: according to the parts by weight, 70 parts of organic fertilizer, 20 parts of humic acid fertilizer and 20 parts of water-soluble fertilizer microbial fertilizer are added into 5000 parts of soil.
3. The green control method of tobacco pests according to claim 1, characterized in that: and E, transplanting tobacco seedlings: and uniformly spraying the ridge with 500-time solution of 58% metalaxyl manganese zinc wettable powder before transplanting.
4. The green control method of tobacco pests according to claim 1, characterized in that: and G, spraying and drying the pesticide: spraying 1000 times of 40% dimethoate emulsifiable solution for spraying at the tobacco seedling stage; and (3) irrigating roots with 500 times of liquid of 200IU streptomycin or phyllobis wettable powder in the tobacco mature period.
5. The green control method of tobacco pests according to claim 1, characterized in that: in the step H, the lower bottom of the trapezoidal support frame (1) is 10-30cm longer than the upper bottom; the fixed rod (7) is welded with the center of the lower end face of the placing plate (10), and the fixed rod (7) is perpendicular to the placing plate (10); the upper end face of the placing plate (10) is provided with a rain baffle (9) through four connecting rods (8), and the four connecting rods (8) are vertically arranged.
6. The green control method of tobacco pests according to claim 1, characterized in that: in the step H, a movable frame is arranged between adjacent ridges, and the lower ends of the trapezoidal support frames (1) are respectively arranged close to the bottoms of the adjacent ridges.
7. The green control method of tobacco pests according to claim 1, characterized in that: and F, putting corresponding natural enemies according to the tobacco insect pests.
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