CN111316847A - Prevention and control method for phyllotreta striolata - Google Patents
Prevention and control method for phyllotreta striolata Download PDFInfo
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- CN111316847A CN111316847A CN202010163544.5A CN202010163544A CN111316847A CN 111316847 A CN111316847 A CN 111316847A CN 202010163544 A CN202010163544 A CN 202010163544A CN 111316847 A CN111316847 A CN 111316847A
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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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- 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
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0237—Devices for protecting a specific part of a plant, e.g. roots, trunk or fruits
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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
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
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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
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/15—Leaf crops, e.g. lettuce or spinach
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M1/00—Stationary means for catching or killing insects
- A01M1/10—Catching insects by using Traps
- A01M1/103—Catching insects by using Traps for crawling insects
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M2200/00—Kind of animal
- A01M2200/01—Insects
- A01M2200/011—Crawling insects
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Abstract
The invention discloses a phyllotreta striolata control method, and belongs to the technical field of gardening cultivation. The phyllotreta striolata prevention and control method comprises the following steps: step 1: planting willow leaf vegetable heart; step 2: sleeving a non-woven cloth bag; and step 3: covering a plastic film bag; and 4, step 4: eliminating phyllotreta striolata; and 5: managing the induced plants; step 6: and (4) removing the non-woven cloth bag and the plastic film bag. According to the method, the willow leaf vegetable heart is planted in the vegetable field where the phyllotreta striolata occurs in autumn and winter, the willow leaf vegetable heart, the non-woven bag and the plastic film bag together form a warm, humid and light-transmitting trapping environment, the phyllotreta striolata is attracted to automatically enter the trapping environment, and finally the phyllotreta striolata cannot escape. The working personnel can kill the fly and fly, the prevention and control effect is good, the safety and the environmental protection are realized, and the labor, the labor and the cost are saved.
Description
Technical Field
The invention relates to a phyllotreta striolata control method, and belongs to the technical field of gardening cultivation.
Background
Phyllotreta striolata (Phyllotreta striolata) belongs to the family Coleoptera, has strong reproductive capacity, can fly and jump, often causes destructive damage to brassicaceous vegetables in seedling stage, and larvae cause a plurality of pores by damaging overground leaves or young parts of underground root adults to eat, thereby not only influencing yield, but also influencing vegetable quality, greatly reducing vegetable commodity value and being one of the most difficult-to-control worldwide agricultural pests in brassicaceous vegetable production. The suitable temperature range of the phyllotreta striolata is 21-30 ℃, the temperature is lower than 20 ℃ or higher than 30 ℃, the activity of imagoes is obviously reduced, particularly the food intake is greatly reduced in high-temperature seasons in summer, the reproduction rate is reduced, and the phenomenon of hibernation occurs, so that the emergence is light. At relative humidities below 90%, egg hatching was minimal. The rainwater is more in spring and autumn, which is beneficial to the generation, and the harm is more serious in spring than in autumn. Adults are easy to jump, can fly, have phototaxis, are most active around noon, are often hidden on the back of heart leaves or lower leaves under high light at noon, have phototaxis, yellow and green, have strong hunger resistance and are hidden at night. Adults lay eggs in moist soil, and have low water content and rarely lay eggs.
The host range of the phyllotreta striolata is mainly limited to cruciferae plants, and common cultivated vegetables such as Chinese cabbage, radish, cabbage heart, mustard, cabbage, cauliflower and mustard are natural hosts of the phyllotreta striolata. Willow leaf vegetable heart is the favorite food of phyllotreta striolata, and willow leaf vegetable heart and other cruciferous vegetables are continuously cultivated all the year round in many places, so that environmental conditions are created for continuous mass occurrence of phyllotreta striolata. In recent years, phyllotreta striolata has become more and more serious and has become the head pest of cruciferous vegetables in the Guangdong. How to effectively control the harm of the flea beetles of the yellow rice sticks becomes a problem to be solved urgently in the production of cruciferous vegetables in south China at present.
At present, a plurality of methods for preventing and treating phyllotreta striolata exist, such as physical mechanical prevention and treatment, biological prevention and treatment and chemical prevention and treatment, but all have various disadvantages. For example, the method for preventing and treating the phyllotreta striolata by combining the mustard as food calling and artificial capturing is a method for combining biological prevention and physical prevention and treatment, but the operation is complicated, the application in actual production is few, and the phyllotreta striolata adults are good at jumping and are easy to escape in the capturing process. For example, although chemical control is widely adopted in production, the phyllotreta striolata adults are good at jumping and can avoid sprayed chemical agents, the front wings of the sheaths of the phyllotreta striolata adults influence the attachment and the penetration of the agents, and the foliar application cannot treat eggs, larvae and pupae in soil at the same time, so that the adults continuously emerge from the soil after the lasting period of the agents is over, and the adults continue to be harmful. Therefore, the single chemical prevention and control of the phyllotreta striolata is difficult. In order to control the harm of phyllotreta striolata, vegetable farmers often increase the pesticide spraying times and the pesticide dosage, which not only leads to stronger and stronger drug resistance of phyllotreta striolata, but also causes the pesticide residue of vegetables to seriously exceed the standard, and brings serious harm to the health of people while increasing the production cost.
In view of this, it is urgently needed to develop a new method for preventing and treating phyllotreta striolata so as to solve the defects of the prior art.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for preventing and treating phyllotreta striolata. According to the method, the willow leaf vegetable heart is planted in the vegetable field where the phyllotreta striolata occurs in autumn and winter by utilizing the preference of the phyllotreta striolata to resist cold and the inhabitation and spawning characteristics of the phyllotreta striolata in the places needing warm and high humidity in winter, the willow leaf vegetable heart, the non-woven bag and the plastic film bag together form a warm, humid and light-transmitting trapping environment, and the phyllotreta striolata is induced to automatically enter the trapping environment and finally cannot escape. The working personnel can kill the fly and fly, the prevention and control effect is good, the safety and the environmental protection are realized, and the labor, the labor and the cost are saved.
The technical scheme for solving the technical problems is as follows: a method for preventing and treating phyllotreta striolata comprises the following steps:
step 1: planting willow leaf vegetable heart
Sowing seeds of willow leaf vegetable heart at the bottom of 8 months to the beginning of 9 months in a vegetable field where phyllotreta striolata occurs, and planting the willow leaf vegetable heart at the beginning of 10 months; normal water and fertilizer management, in 11-month middle ten days, bolting the willow leaf vegetable heart;
step 2: nonwoven cloth bag
When the flower shoots of the willow leaf heart grow to more than 1m, selecting one willow leaf heart every 3m-10m as a trapping plant;
selecting a non-woven bag with one open end for each willow leaf heart serving as a trapping plant, covering the whole willow leaf heart from the top to the bottom, keeping the flower branches at the top bent and continuous, and tying the opening of the non-woven bag with the root base of the willow leaf heart by using a rope;
and step 3: plastic film bag
Selecting a plastic film bag with openings at two ends, covering the non-woven fabric bag in the step (2) from the top to the bottom, and tightly binding and sealing the bag opening at the top of the plastic film bag by using a rope, wherein the inner top of the plastic film bag is in a wrinkled shape;
binding a plastic film bag and the willow leaf vegetable core covered by the non-woven bag together by using a rope at a position 10cm-15cm away from the ground, keeping the plastic film bag and the non-woven bag attached, and then swinging the bag opening at the bottom of the plastic film bag to the periphery, wherein the expansion degree is 15cm-20 cm;
and 4, step 4: phyllotreta striolata eliminating device
After the phyllotreta striolata is gathered in the interlayer of the plastic film bag and the non-woven fabric bag, workers manually eliminate the phyllotreta striolata from the periphery of the plastic film bag, or open the bag opening at the bottom of the non-woven fabric bag, and spray biological agents towards the inner top of the non-woven fabric bag to eliminate the phyllotreta striolata;
and 5: management of trap plants
Keeping the willow leaf heart as the induced plant to grow normally and keeping the soil at the root part of the willow leaf heart moist; (ii) a
Step 6: dismantling non-woven cloth bag and plastic film bag
And when no phyllotreta striolata exists continuously for 15-20 days in the interlayer of the plastic film bag and the non-woven bag, the non-woven bag and the plastic film bag can be detached.
The principle of the invention is as follows:
the phyllotreta striolata has phototaxis and hygropism (more than 90 percent of humidity), and is fond of warm, humid and light-transmitting environment. In winter, the air temperature is low, and the phyllotreta striolata needs to find a warm and high-humidity environment for inhabitation and spawning. According to the method, the willow leaf vegetable heart is planted in the vegetable field where the phyllotreta striolata occurs in autumn and winter by utilizing the preference of the phyllotreta striolata to resist cold and the inhabitation and spawning characteristics of the phyllotreta striolata in the places needing warm and high humidity in winter, the willow leaf vegetable heart, the non-woven bag and the plastic film bag together form a warm, humid and light-transmitting trapping environment, and the phyllotreta striolata is induced to automatically enter the trapping environment and finally cannot escape. The working personnel can kill the fly and fly, the prevention and control effect is good, the safety and the environmental protection are realized, and the labor, the labor and the cost are saved. The method comprises the following specific steps:
firstly, the willow leaf vegetable heart is a vegetable heart food preferred by phyllotreta striolata, can bolt and flower in winter, and is an optimal plant material for inducing and collecting phyllotreta striolata in winter. The willow leaf vegetable heart has rich side moss, the height of the plant can reach more than 1m after blooming, and the opening degree of the top flowering branch is about 1 m. The plant height and the development degree can not only ensure that the phyllotreta striolata entering the trapping environment has sufficient hiding place, but also ensure that the phyllotreta striolata cannot escape. The phyllotreta striolata flea is easy to escape due to insufficient plant development degree or insufficient height.
Secondly, the non-woven fabrics have printing opacity and ventilative characteristics, and the moisture that plant transpiration produced can permeate the non-woven fabrics gathering in its outer plastic film bag, and surperficial fine hair does benefit to aflatoxin flea beetle and crawls up, up to plastic film's interior top.
In the step 2 of the invention, the whole willow leaf vegetable core is covered by a non-woven bag which is reversely buckled on the willow leaf vegetable core, and a bag opening at the bottom of the non-woven bag is bound with the root base part of the willow leaf vegetable core by a rope, at the moment, the non-woven bag is in an inverted cone shape with the height of about 1m and large and flat top, which is beneficial to the hiding of the phyllotreta striolata and can not escape. The selected non-woven bag needs to be matched with the plant height and the plant width of the willow leaf vegetable heart.
Thirdly, the plastic film has the characteristics of light transmission and air impermeability, and the humidity in the interlayer between the inside of the plastic film bag and the outside of the non-woven bag can be quickly saturated by virtue of the transpiration effect of the willow leaf vegetable heart. And the non-woven fabric and the plastic film have certain moisture-keeping function, so that an ideal environment which is warm, moist and bright and is used for inducing and collecting the phyllotreta striolata is formed. In addition, due to the light transmission of the plastic film, the phyllotreta striolata entering the plastic film and non-woven fabric interlayer mistakenly thinks that the phyllotreta striolata is an open environment and climbs up all the time, so that the phyllotreta striolata entering the deep part of the trapping bag cannot escape.
In step 3 of the invention, the non-woven cloth bag is covered by the plastic film bag with two open ends from the periphery, and the bag opening at the top of the plastic film bag is tightly bound by the rope, thereby forming even wrinkles. After the bag openings at the tops of the plastic film bags are bound, uniform folds are formed, firstly, water vapor can be better gathered, and secondly, the phyllotreta striolata naturally likes hiding gaps, can automatically climb into the folds and are gathered together. The worker can eliminate the flea beetles intensively, the possibility of the flea beetles to escape is completely avoided, and the prevention and treatment effect is more obvious. When the chemical agent is sprayed in the prior art, the phyllotreta striolata can escape into soil gaps and hide, so that repeated spraying for many times is still ineffective, the prevention and control effect is very low, and the environment is not protected.
Binding the plastic film bag and the willow leaf vegetable core covered by the non-woven bag together by using a rope at a position 10cm-15cm away from the ground, keeping the plastic film bag and the non-woven bag attached to form slight tension between flower branches of the willow leaf vegetable core and the non-woven fabric and the plastic film, and then swinging the bag opening at the bottom of the plastic film bag to the periphery, wherein the spreading degree is 15cm-20 cm. At a position 10cm-15cm away from the ground, the plastic film bag and the willow leaf vegetable core covered by the non-woven bag are tied together by using a rope, so that not only is the phyllotreta striolata induced to enter an interlayer between the non-woven fabric and the plastic film, but also the phyllotreta striolata can be prevented from escaping.
The plastic film bag is just attached to the non-woven bag, so that a plant growth space is provided, a certain tension is formed, the yellow curved flea beetle is formed and loves a hiding gap, and the yellow curved flea beetle is prevented from escaping.
In addition, the plastic film at the bottom of the plastic film bag is unfolded towards the periphery, so that the effective trapping area can be enlarged.
The method for preventing and treating phyllotreta striolata has the beneficial effects that:
1. the method for preventing and treating phyllotreta striolata has better effect. According to the method, willow leaf vegetable cores preferred by phyllotreta striolata are used as trapping plants, the phyllotreta striolata is trapped to be concentrated in the planting range of the willow leaf vegetable cores, then the willow leaf vegetable cores, the non-woven cloth bags and the plastic film bags are used for manufacturing a warm, humid and light-transmitting trapping environment, and the phyllotreta striolata is further induced to automatically enter the trapping environment and finally cannot escape.
2. The method for preventing and treating phyllotreta striolata is safer and more environment-friendly. The induced plants are used for killing after being induced and collected in winter, the method belongs to a biological and physical control method, chemical agents do not need to be repeatedly sprayed on vegetables planted in a vegetable field, and physical and psychological health of consumers is facilitated.
3. The method for preventing and controlling phyllotreta striolata saves labor, labor and cost. The method only needs to perform trapping and elimination in winter, so that the seedlings cannot lay eggs to be harmful afterreap crops, the labor and material cost required for preventing and controlling phyllotreta striolata in each mu of vegetable field is about 100 yuan, and the cost is almost negligible compared with the vegetable loss caused by spraying chemical agents and the phyllotreta striolata all year round. In addition, the removed non-woven fabric bag and the removed plastic film bag can be reused after being cleaned.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, in the step 1, the row spacing of the planted plants is 15cm × 20 cm.
Further, in the step 2, the gram weight of the non-woven fabric used by the non-woven fabric bag is 20g/m2-60g/m2。
The adoption of the further beneficial effects is as follows: the non-woven fabric adopting the parameters can keep the air permeability and the light transmittance, and can meet the requirement of upwards climbing the phyllotreta striolata.
Further, in step 3, the thickness of the plastic film used for the plastic film bag is 2 mm.
The adoption of the further beneficial effects is as follows: the plastic film adopting the parameters can be better attached to the non-woven fabric bag inside, and the light transmission and the air impermeability are also kept.
Further, in the step 4, the biological agent is 1200 times of abamectin emulsifiable solution with the mass percent of 2.0%.
The adoption of the further beneficial effects is as follows: the biological agent is used for eliminating phyllotreta striolata and avoiding the pollution to the ecological environment caused by using a chemical agent.
Drawings
Fig. 1 is a schematic structural diagram of an attracting environment in the phyllotreta striolata control method of the present invention.
In the drawings, the reference numerals have the following meanings:
1. willow leaf vegetable heart; 2. a nonwoven fabric bag; 3. a plastic film bag; 4. a rope; 5. phyllotreta striolata.
Detailed Description
The principles and features of this invention are described below in conjunction with the following detailed drawings, which are given by way of illustration only and are not intended to limit the scope of the invention.
Example 1:
the method for preventing and treating phyllotreta striolata of the embodiment comprises the following steps:
step 1: planting willow leaf vegetable heart
Sowing seeds of the willow leaf vegetable heart 1 at the bottom of 8 months to the beginning of 9 months in a vegetable field with the phyllotreta striolata 5, planting at the beginning of 10 months, wherein the row spacing of the planted seeds is 15cm × 20cm, and carrying out normal water and fertilizer management, wherein the willow leaf vegetable heart 1 starts bolting in the middle ten days of 11 months.
Step 2: nonwoven cloth bag
When the flower bolt of the willow leaf heart 1 grows to be more than 1m, selecting one willow leaf heart 1 every 3m as a trapping plant.
As shown in figure 1, for each willow leaf vegetable heart 1 as a trapping plant, a non-woven fabric bag 2 with one open end is selected, the whole willow leaf vegetable heart 1 is covered from top to bottom, flowers at the top are kept bent and continuous, and the opening of the non-woven fabric bag 2 is tied with the root base of the willow leaf vegetable heart 1 through a rope 4. Wherein the gram weight of the non-woven fabric used for the non-woven fabric bag 1 is 20g/m2。
And step 3: plastic film bag
And (3) selecting plastic film bags 3 with openings at two ends, covering the non-woven fabric bags 2 obtained in the step (2) from top to bottom respectively, and fastening and sealing bag openings at the tops of the plastic film bags 3 by using ropes 4, wherein the inner tops of the plastic film bags 3 are in a wrinkled shape. Wherein the thickness of the plastic film used by the plastic film bag 3 is 2 mm.
Binding the plastic film bag 3 and the willow leaf vegetable core 1 covered by the non-woven fabric bag 2 together by using a rope 4 at a position 10cm away from the ground, keeping the plastic film bag 3 attached to the non-woven fabric bag 2, and then swinging the bag opening at the bottom of the plastic film bag 3 to the periphery, wherein the spreading degree is 15 cm.
And 4, step 4: phyllotreta striolata eliminating device
After the phyllotreta striolata 5 is gathered in the interlayer of the plastic film bag 3 and the non-woven fabric bag 2, a worker manually eliminates the phyllotreta striolata from the periphery of the plastic film bag 3, or opens the bag opening at the bottom of the non-woven fabric bag 2, and sprays 1200 times of abamectin emulsifiable solution with the mass percentage of 2.0% to the inner top direction of the non-woven fabric bag 2 to eliminate the phyllotreta striolata 5.
And 5: management of trap plants
Keeping the normal growth of the willow leaf heart 1 as a trapping plant and keeping the soil at the root of the willow leaf heart moist.
Step 6: dismantling non-woven cloth bag and plastic film bag
When no phyllotreta striolata 5 continuously 15 days enters the interlayer between the plastic film bag 3 and the non-woven bag 2, the non-woven bag 2 and the plastic film bag 3 can be detached.
Example 2:
the method for preventing and treating phyllotreta striolata of the embodiment comprises the following steps:
step 1: planting willow leaf vegetable heart
Sowing seeds of the willow leaf vegetable heart 1 at the bottom of 8 months to the beginning of 9 months in a vegetable field with the phyllotreta striolata 5, planting at the beginning of 10 months, wherein the row spacing of the planted seeds is 15cm × 20cm, and carrying out normal water and fertilizer management, wherein the willow leaf vegetable heart 1 starts bolting in the middle ten days of 11 months.
Step 2: nonwoven cloth bag
When the flower bolt of the willow leaf heart 1 grows to be more than 1m, selecting one willow leaf heart 1 every 5m as a trapping plant.
As shown in figure 1, for each willow leaf vegetable heart 1 as a trapping plant, a non-woven bag 2 with one open end is selected, the whole willow leaf vegetable heart 1 is covered from top to bottom, and the top is keptThe flower is bent and continuous, and the bag opening of the non-woven bag 2 is tied with the root and the base of the willow leaf flowering cabbage 1 by a rope 4. Wherein the gram weight of the non-woven fabric used for the non-woven fabric bag 2 is 40g/m2。
And step 3: plastic film bag
And (3) selecting plastic film bags 3 with openings at two ends, covering the non-woven fabric bags 2 obtained in the step (2) from top to bottom respectively, and fastening and sealing bag openings at the tops of the plastic film bags 3 by using ropes 4, wherein the inner tops of the plastic film bags 3 are in a wrinkled shape. Wherein the thickness of the plastic film used by the plastic film bag 3 is 2 mm.
At a position 12cm away from the ground, the plastic film bag 3 and the willow leaf vegetable core 1 covered by the non-woven fabric bag 2 are tied together by a rope 4, the plastic film bag 3 is kept attached to the non-woven fabric bag 2, and then the bag opening at the bottom of the plastic film bag 3 is swung open towards the periphery, and the spreading degree is 18 cm.
And 4, step 4: phyllotreta striolata eliminating device
After the phyllotreta striolata 5 is gathered in the interlayer of the plastic film bag 3 and the non-woven fabric bag 2, a worker manually eliminates the phyllotreta striolata 5 from the periphery of the plastic film bag 3, or opens the bag opening at the bottom of the non-woven fabric bag 2, and sprays 1200 times of abamectin emulsifiable solution with the mass percentage of 2.0% to the inner top direction of the non-woven fabric bag 2 to eliminate the phyllotreta striolata 5.
And 5: management of trap plants
Keeping the normal growth of the willow leaf heart 1 as a trapping plant and keeping the soil at the root of the willow leaf heart moist.
Step 6: dismantling non-woven cloth bag and plastic film bag
When no phyllotreta striolata 5 continuously 18d enters the interlayer between the plastic film bag 3 and the non-woven bag 2, the non-woven bag 2 and the plastic film bag 3 can be detached.
Example 3:
the method for preventing and treating phyllotreta striolata of the embodiment comprises the following steps:
step 1: planting willow leaf vegetable heart
Sowing seeds of the willow leaf vegetable heart 1 at the bottom of 8 months to the beginning of 9 months in a vegetable field with the phyllotreta striolata 5, planting at the beginning of 10 months, wherein the row spacing of the planted seeds is 15cm × 20cm, and carrying out normal water and fertilizer management, wherein the willow leaf vegetable heart 1 starts bolting in the middle ten days of 11 months.
Step 2: nonwoven cloth bag
When the flower bolt of the willow leaf heart 1 grows to be more than 1m, selecting one willow leaf heart 1 every 3m-10m as a trapping plant.
As shown in figure 1, for each willow leaf vegetable heart 1 as a trapping plant, a non-woven fabric bag 2 with one open end is selected, the whole willow leaf vegetable heart 1 is covered from top to bottom, flowers at the top are kept bent and continuous, and the opening of the non-woven fabric bag 2 is tied with the root base of the willow leaf vegetable heart 1 through a rope 4. Wherein the gram weight of the non-woven fabric used for the non-woven fabric bag 2 is 60g/m2。
And step 3: plastic film bag
And (3) selecting plastic film bags 3 with openings at two ends, covering the non-woven fabric bags 2 obtained in the step (2) from top to bottom respectively, and fastening and sealing bag openings at the tops of the plastic film bags 3 by using ropes 4, wherein the inner tops of the plastic film bags 3 are in a wrinkled shape. Wherein the thickness of the plastic film used by the plastic film bag 3 is 2 mm.
Binding a plastic film bag 3 and a willow leaf vegetable core 1 covered by a non-woven fabric bag 2 together by using a rope 4 at a position 15cm away from the ground, keeping the plastic film bag 3 attached to the non-woven fabric bag 2, and then swinging a bag opening at the bottom of the plastic film bag 3 to the periphery, wherein the spreading degree is 20 cm;
and 4, step 4: phyllotreta striolata eliminating device
After the phyllotreta striolata 5 is gathered in the interlayer of the plastic film bag 3 and the non-woven fabric bag 2, a worker manually eliminates the phyllotreta striolata 5 from the periphery of the plastic film bag 3, or opens the bag opening at the bottom of the non-woven fabric bag 2, and sprays 1200 times of abamectin emulsifiable solution with the mass percentage of 2.0% to the inner top direction of the non-woven fabric bag 2 to eliminate the phyllotreta striolata 5.
And 5: management of trap plants
Keeping the normal growth of the willow leaf heart 1 as a trapping plant and keeping the soil at the root of the willow leaf heart moist.
Step 6: dismantling non-woven cloth bag and plastic film bag
When no phyllotreta striolata 5 continuously enters the interlayer between the plastic film bag 3 and the non-woven bag 2 for 20 days, the non-woven bag 2 and the plastic film bag 3 can be detached.
Experimental example:
in 2019, in the vegetable test garden of Guangxi special crop research institute, 4 test vegetable fields are selected. Wherein the area of the vegetable field 1 is 50m2Only Chinese cabbage is planted, and a chemical method is adopted to prevent and control the flea beetles. The area of the vegetable field 2 is 50m2Only Chinese cabbage is planted, and the phyllotreta striolata is prevented and controlled by adopting a physical method of isolating with a 40-mesh insect-proof net. The area of the vegetable field 3 is 100m2Planting Chinese cabbage 50m2Planting 50m of willow leaf vegetable heart2The method of the embodiment 2 of the invention is adopted to control phyllotreta striolata. The area of the vegetable field 4 is 50m2Only willow leaf vegetable cores are planted and set as blank control, and phyllotreta striolata is not prevented and controlled.
In 2 months of 2020, the hazard condition of phyllotreta striolata is counted, and the result is as follows:
vegetable field 1: the harm rate of the Chinese cabbage to the phyllotreta striolata is more than 50.6 percent.
Vegetable field 2: the harm rate of the Chinese cabbage to the phyllotreta striolata is less than 5.1%.
Vegetable field 3: the harm rate of Chinese cabbage to phyllotreta striolata is less than 0.1%, and the harm rate of willow leaf vegetable heart to phyllotreta striolata is less than 3.4%.
Vegetable field 4: the hazard rate of the willow leaf vegetable core to phyllotreta striolata is more than 98.1%.
Therefore, the method for preventing and treating phyllotreta striolata in the embodiment 2 of the invention has the advantages of better effect, safety, energy conservation and environmental protection.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A method for preventing and treating phyllotreta striolata is characterized by comprising the following steps:
step 1: planting willow leaf vegetable heart
Sowing seeds of willow leaf vegetable cores (1) at the bottom of 8 months to the beginning of 9 months in a vegetable field where phyllotreta striolata (5) occurs, and planting the willow leaf vegetable cores at the beginning of 10 months; normal water and fertilizer management, in 11 middle of the month, bolting the willow leaf vegetable heart (1);
step 2: nonwoven cloth bag
When the flower bolt of the willow leaf heart (1) grows to be more than 1m, selecting one willow leaf heart (1) every 3m-10m as a trapping plant;
selecting a non-woven fabric bag (2) with one open end for each willow leaf heart (1) serving as a trapping plant, covering the whole willow leaf heart (1) from the top to the bottom, keeping the flower at the top bent and continuous, and binding the opening of the non-woven fabric bag (2) and the root base of the willow leaf heart (1) together by using a rope (4);
and step 3: plastic film bag
Selecting a plastic film bag (3) with openings at two ends, covering the non-woven fabric bag (2) obtained in the step (2) from top to bottom, and tightly binding and sealing the bag opening at the top of the plastic film bag (3) by using a rope (4), wherein the inner top of the plastic film bag (3) is in a wrinkled shape;
binding a plastic film bag (3) and a willow leaf vegetable core (1) covered by a non-woven bag (2) together by using a rope (4) at a position 10cm-15cm away from the ground, keeping the plastic film bag (3) and the non-woven bag (2) attached, and then swinging a bag opening at the bottom of the plastic film bag (3) to the periphery, wherein the spreading degree is 15cm-20 cm;
and 4, step 4: phyllotreta striolata eliminating device
After the phyllotreta striolata (5) is gathered in the interlayer of the plastic film bag (3) and the non-woven fabric bag (2), the worker manually eliminates the phyllotreta striolata (5) from the periphery of the plastic film bag (3), or opens the bag opening at the bottom of the non-woven fabric bag (2), and sprays biological agent to the direction of the inner top of the non-woven fabric bag (2) to eliminate the phyllotreta striolata (5);
and 5: management of trap plants
Keeping the willow leaf heart (1) as a trapping plant to grow normally and keeping the soil at the root of the willow leaf heart moist;
step 6: dismantling non-woven cloth bag and plastic film bag
When no phyllotreta striolata (5) continuously enters the interlayer of the plastic film bag (3) and the non-woven bag (2) for 15-20 days, the non-woven bag (2) and the plastic film bag (3) can be detached.
2. The phyllotreta striolata control method according to claim 1, wherein in step 1, the planting row spacing of the planted phyllotreta striolata is 15cm × 20 cm.
3. The phyllotreta striolata control method according to claim 1, wherein in the step 2, the gram weight of the non-woven fabric used for the non-woven fabric bag (2) is 20g/m2-60g/m2。
4. The phyllotreta striolata control method according to claim 1, wherein in step 3, the thickness of the plastic film used for the plastic film bag (3) is 2 mm.
5. The method for controlling phyllotreta striolata according to any one of claims 1 to 4, wherein in the step 4, the biological agent is 1200 times of abamectin emulsifiable solution with the mass percent of 2.0%.
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