Large-scale planting of large-scale vegetables creates good ecological conditions for pests and diseases. Crude farming operations have increased the primary number of insects and single-planting, multi-annual growth of vegetables, increasing the number of insects. Vegetable cultivation in the shed creates an ecological environment that is warm, wet, and changes in the temperature of day and night, which is conducive to the reproductive hazards of pests and pests and to large populations. Vegetables in the shed have now begun to be grounded and bred, and more attention needs to be paid to the pests and diseases that are prone to occur during the nursery period。
Four major processes for the initial eradication of the disease
I. High temperature shacks
When the shed is built, we'll pick the weather day to cover the film. 7 to 10 days to increase temperature above 50°c in the shed to kill the plaster and the eggs of the earth-earth disease, thereby reducing the chronic infestation and harm of vegetables. In high-temperature studios, a single mixture of sulfur powder of 2. 4 g per cubic metre, sawdust of 4. 5 g and dichlorvos fumolator of 1 g is more effective, with dark fires lit and smoke sealed, but smoke is then air-freighted for 2 to 3 days and planted in the ground。
Seed treatment
Insects and pests are often lurking on seeds or seedlings of vegetables, and seed treatment is done before planting, thus preventing the spread of some of them. Common seed treatment methods include warm water leaching and pharmaceutical treatment. Vegetable seeds are usually immersed in warm water for 5-15 minutes with 50-60°c warm water, and are constantly mixed while impregnated, so that the seeds are evenly heated。
Soil decontamination
Pre-planting or pre-planting can prevent or mitigate the long-term insect hazard of vegetables by decontaminating the soil with a pharmaceutical agent to kill the fungus or eggs in the soil. When the soil is disinfected, it can be used and used in a targeted manner in accordance with the conditions of a perennial pest. When used, the selected agent is mixed with a suitable amount of dry soil, evenly spread over the surface of the earth, and then tilled into the earth。
Iv. Set up anti-worm nets to stop pests, cedars, lights to kill bug
Insect protection nets are installed in vegetable breeding or growth processes to prevent pests from moving into greenhouses, the effects of which are clear, and the facility sheds are generally available at 40 points. The cedars can be painted with 6 cm x 4 cm rectangular cardboard on top of a layer of engine oil, hanged in a shed, generally productively grown in a hut with an area of 667 m2, hanging 30 to 40 pieces, and trapping aphids and white lice; at the same time, black light lamps can be used to trap moths and tigers into insects, and in-house frequency-fibrous insecticidal lamps are largely highly effective in pests。
Plantation management based
When designing and implementing plant management measures, consider creating a favourable environment for vegetable growth and development
The environmental conditions in which insects thrive serve the purpose of preventing and mitigating them。
Introduction of (resisting) pest species: is the most cost-effective method of combating vegetable pests in the shed。
2. Promotion of soil formulation fertilization: to apply fully decomposed organic fertilizers and determine the ratio of potassium nitrogen phosphorus to different plots. In the later stages of vegetable growth, attention should be paid to increasing the use of potassium phosphorus and other micro-fertilizers and improving the resistance of vegetables to disease。
3. Science watering: intensive promotion of drip irrigation and membrane dark irrigation techniques and prohibition of large-scale flooding to reduce soil and air moisture。
4. Reasonable planting: determination of a reasonable planting density based on a variety of species, avoidance of over-enhancement and ventilation。
5. Promote membrane full coverage: all ground-use membrane coverage in the shed not only increases the temperature of the ground, promotes root system development, but also has the effect of reducing air moisture in the shed and reducing the incidence of disease。
6. Attention should be paid to the cleaning of sheds: the long-term removal of strains of disease, the removal of leaves and leaves, and the immediate removal of dead leaves, roots and weeds from the sheds immediately after harvest can have the effect of reducing the sources of infestation of long-lived and downstream vegetable pests and diseases。
7. Promotion of light: vegetable life requires the long-term maintenance of filament cleaning to improve light。
8. Rational rotation. There are similar or similar pests and pests in the same vegetable industry, and it is therefore best to have a rotational fallout to reduce the occurrence of pests and diseases。
Pest and disease management methods for various crops
Prevention of chili-critical pests
(c) key pests and diseases during the nursery period。
1 the key diseases are ashilosis and anthrax. The treatment is provided at the speeds of zoknin and mettobuzin, respectively, and sprayed every 15 days。
2 the key pests are aphids, which can be combated with dictums and dictums。
Key pests and pests during growth outcomes. In general, the following diseases are: fungal scabies, anthrax, disease, which can be prevented by killing or methyl tobuzin, reox or enzyme; viral diseases, which generally lead to flowers, curls, which can be prevented by virus a or paprika follic spray; palladium disease, which is heavily preventable, increases soil disinfection and increases lime. In the early stages of the disease, 5 per cent of the total population was treated with more than 500 times the dose。
Cheese critical pest control
Critical diseases。
1 early exposure to fallout and fungal diseases, with anti-preventatives such as cracking, methyl tobzin, bacillus, etc。
After growth and development, the disease is yellow atrophy and spread. The prevention and treatment has focused on rotation, strict soil disinfection and the reintroduction of lime. Sprays are used to prevent the onset of an outbreak。
Critical pests. In general there are aphids, cotton bellworms, 18 starworms, tea mites, etc. Aphids can be treated with drugs such as dictums, rogos, cotton bellworms, 18 starworms, or acetal salt, etc., and tea dictums, krauts。
Vegetable pest control
There is a very large number of diseases, but the most common and most serious are soft, frost and viral diseases。
1 soft decomposition, with the immediate removal of the strain and a small amount of lime in the surrounding soil
2 frostosis, which can be treated with the following medications at an early stage of the disease: 75 per cent of the mercuric spray 80 times the spray, and 40 per cent of the acethion aluminium 150-200 times the spray
Aphids are immediately treated for 3 viral diseases and sprayed with aqualone at a factor of 1,000。
Pest control. The key pests are those of vegetable geisha, beet night moths, aphids, etc., which can be combated by enemy killing and acetals。
Chrysotile pest control
Chrysotile diseases typically include frost and morbid diseases。
1frost, 25 per cent of which is applied 800 times more than or 45 per cent more than 900-1,000 times than ammonium dyson in the early stages of the disease, and 2-3 times more every 5-7 days。
2 soft decomposition, which is immediately removed from the strain at an early stage of the disease, and a small amount of lime is sprayed around the cascading den with 200 g/l or 500 - 1,000 times the enzyme or 50 per cent of the ammonium dyson, which is sprayed every 5 - 7 days and 2 - 3 successive times。
The key pests of the aphids are aphids and snails. It's a snail。
Celery pest control
Sick. There is generally a sudden onset of disease, detection of the strain, immediate removal and spraying of the soil. It can be distributed 25 kg of more than 35% of the soil mixed with more than 35% of the fungus, or a thousand times more with more than 50% of the fungus, or a thousand times more with 50% of the amphibians or 800 times more with 70% of the bacteria. In general, there are cases of folate and early disease. 70% dyson zinc wettable powder 500 times liquid, 40% mtozin 600-800 times liquid spray, separated
The day-to-day meds。
Critical pests. Celery pests typically have slashed night moths and aphids. Slashed night moths can be treated with 25 per cent of the larvae no. 3 500 times the liquid or kung fu or acetate. Aphids can be treated with americone and americium monomer。
Cucumber pest control
Sick. The key diseases are atrophy, disease, frost, bacterial horny diseases, which can be dealt with separately by dyson ammonium, killables, mercantiles, agro-chain carcinin。
Critical pests. There are generally cucumberworms, aphids, etc., which can be treated with drug sprays such as dictums or pyrethroids。
Smelter pest control
The key diseases of the large raisins are diseases such as disease, cyanosis, bacterial horny diseases, and pests such as aphids, cucumbers, flair flies and guacamole. The response is based on the melon approach。
Pest and pest control of bitter melons
Suffering plants have a special odour and are more resistant to insects, but anthrax and lignoma are common in high temperatures and more during the rainy season; 70 per cent of methyl tobuzin's 800-1,000-fold or 75 per cent of its 100-fold liquid spray can be treated. In the dry season, they are vulnerable to pests such as aphids and white ticks. The control of aphids can be combated by aerobic sprays up to 25 per cent of the acetone 800 times. The treatment of white lice can be combated by 500 times the americ spray of 20 per cent of the aphid。
Pest control in winter melons
The key disease of winter melons is cranium. Integrated cyanosis control, selection of disease-resistant varieties, rotational practices, high-strength cultivation, etc. Drug control can spray or root 70 per cent of methyl tobuzin at a factor of 1,000, or 50 per cent of polybacterial spirit at a factor of 800-1,000, or 75 per cent of 100 microbacteria at a factor of 500-800. The key pests are aphids, which can be combated with aphids or acetone spray。
Beans pest control
The key diseases of bean bean bean are deadness, rusty, cyanosis, etc. Pests can be treated with antigens, methyl tobzin, dyson zinc, etc.; pests typically include aphids, soybean worms, and tectonic flies. High-efficiency, low-toxic and safe pesticides such as anti-typhoids, cardunks, avimectin and vegetables can be selected for treatment at an early age。
