It is imperative to reduce pesticide dependence on green plant protection

The prevention and control of crop diseases and insect pests is inseparable from the use of pesticides to emergency control and turn the tide
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However, pesticides are not the only means.
In recent years, with the vigorous advancement of agricultural green development and the zero-growth action of pesticides, green plant protection technologies represented by agricultural control, physical control, biological control, and ecological control have been practiced more and more.
The use of these non-chemical control measures fully mobilize the power of natural ecology and the wisdom of traditional agricultural methods, and their comprehensive application can not only effectively reduce the application of pesticides, but also achieve the effect of multiplying the effort with half the effort and long-term damage control, which is beneficial to maintaining the ecological cycle of the farmland environment.
It is also of great benefit, and the benefits are in the long run
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In this issue, let’s take a look at what green and innovative plant protection techniques can be used in practice? 1.
Agricultural prevention and control Interplanting, grass cultivation in tea gardens and orchards, and the promotion of insect-resistant varieties to achieve the purpose of pest control
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For example, to prevent and control overwintering rice borer, winter turning and irrigation can be used to kill pupae to reduce the overwintering base; to control corn borer, sealing treatment or processing and burning of straw before emergence can be used
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Agricultural machinery can correspondingly promote straw crushing and low-stubble harvesting technology, or carry out shallow rotary tillage on the surface of the winter fallow field, crush and harrow the surface of the paddy field, so that the rice roots are broken and easy to decompose, or the use of straw decomposing bacteria, etc.
It can greatly reduce the number of overwintering borers in rice roots and straw
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It is necessary to implement the technology of factory seedling raising, virus-free seedlings, and mechanical grafting of fruits and vegetables as the basic work of green plant protection
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Promote organic fertilizer rapid decomposing, sterilization and pest control technology, chemical fertilizer modification such as slow release, and calcium cyanamide fertilizer modification technology for insecticide and disease prevention fertilizer.
Ningxia Shizuishan agricultural technicians have used modified calcium cyanamide fertilizer, As a soil-borne disease and disease prevention and control caused by soil calcium deficiency, it is used for the prevention and control of stalk rot in tomato processing bases, and has achieved good control effects
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The cultivation of grass growing in orchards and tea gardens is also an important agricultural control technology, and the establishment of ecological orchards and tea gardens should be promoted as production technologies for green prevention and control
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2.
Introduce new physical prevention and treatment.
Physical prevention and treatment refers to the use of physical methods to attract, kill, isolate, and repel pests, so as to achieve the purpose of controlling pests.

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For example, high-mercury lamps, frequency-vibration lamps, and black light lamps can trap dozens of lepidopteran and coleopteran pests in tea gardens, orchards, rice fields, and vegetable fields
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In facility cultivation, the use of solar energy for high-temperature stuffy sheds and soil heating treatment can kill the pests hidden in the greenhouses and the soil, and reduce repeated cropping diseases
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Using the stickiness of the sticky insect board to control some small pests, it has been widely used in forecasting and prevention
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Negative pressure airflow can also be used to adsorb pests, and a pest removal machine can be developed, and even a knapsack motorized sprayer can be slightly improved, equipped with a negative pressure suction tube, and it can be used as rice fields, tea gardens, vegetable gardens, fruit trees, lawns and greenhouses.
sweep crop (suction) worm machine, suitable for controlling leafhoppers, planthoppers, whiteflies, leaf beetles, moths and other small
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Sound can also be used for pest investigation and control work.
For example, planthoppers can search for the opposite sex by "singing" sound.
They also have certain specificity.
They can be used to investigate the pest situation in small areas in the pastoral area.
In the field, they can experiment with the "sounding method" for prevention and control.
The principle of the "Missing Sound Method" and the "Mixing Method" of artificial interference with sex attractants are the same in controlling pests.
They both artificially interfere with the information connection between insect populations and are a bright spot of innovation
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3.
Biological control is promising.
Almost all crop pests can be controlled by biological control methods.
Regardless of farmland, orchard or tea garden, there are a large number of predatory, parasitic, pathogenic natural enemies and antagonistic microorganisms of the pests
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As long as through measures such as artificial protection, migration and cultivation, increasing the number of natural enemies of pests or using microbial pesticides, the purpose of prevention and control can be achieved, such as protecting frogs, releasing parasitic wasps to treat insects, and using antagonistic Trichoderma to prevent diseases
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Recent studies have found that Bacillus amyloliquefaciens has a good control effect on rice thin stripe disease, Beauveria bassiana has a good control effect on rice leaf roller, and the plant-derived fungicide eugenol water emulsion has good control effect on strawberry gray mold disease.
Very good prevention effect
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All these have laid a good foundation for the green prevention and control of crop diseases and insect pests and the development of new pesticides
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"Field bee cages", "field spider cages", frog breeding grounds, etc.
, of natural enemies can be built in the field to increase and multiply natural enemies
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For example, setting up a "field bee cage" in a cotton field is equivalent to building a small factory for the natural breeding of Trichogramma
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The mesh is suitable for parasitic wasps such as tiny Trichogramma to enter and exit, but the spawning host cannot fly out
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During the cotton growth period, starting from the end of May, put a batch of female moths such as dead leaf moths and tussock moths, or artificially cultivated tussah silkworm eggs, tussah silkworms, etc.
, into the cage every 5 days, and let them emerge to lay eggs in the cage.
Then put in the Trichogramma egg card to allow the Trichogramma to multiply and spread out in the "field bee cage"
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As long as a "field bee cage" is built in one acre of cotton field, the cotton bollworm and other damages in the whole field can be controlled
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The "biological missile" technology is a combination of parasitic wasps and virus prevention and control technology.
If the virus is a "warhead" that kills pests, the parasitic wasp is a precise "missile guidance system
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" This system has the dual prevention and control effects of parasitic wasps and spreading host virus diseases, and the effect is outstanding
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You can also combine sexual lures with corresponding pest virus broadcasts, allowing males to bring viruses to search for female moths to mate, lay poisoned eggs and egg masses, and make newly hatched larvae infected and die
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