In winter, pests of grain, cotton, vegetables and fruits lurk in a suitable environment and enter the wintering state. Although the hibernating pests are no longer harmful to the crops, the wintering base has a greater impact on the occurrence of the coming year. According to the investigation, the killing of one wintering bollworm, the elimination of 300-500 larvae in the coming year; the elimination of one aphid, will be eliminated in the coming year. 1500-2000 head mites; larvae killing 1 worm, killing about 300 larvae in the coming year. Therefore, grasping this favorable opportunity to carry out prevention and control, saving labor, saving medicine, and good effect, will reduce the harm of pests, and will have a multiplier effect.
1. Deep ploughing can turn underground pests such as cockroaches to the ground and freeze them; it can also destroy the chamber nests of cotton bollworms, armyworms, wheat leaf bees, aphids and other pests, and change their orientation to prevent emergence or hatching. It is advisable to carry out deep ploughing at the end of autumn and winter, and generally plow 13-15 cm.
2. Jieyuan first removes weeds and destroys the wintering environment of locusts and ash. The leaves, leaves, and gluten of the fruit trees are cleaned, crushed, and piled up to kill more than 90% of the corn borer, millet ash, leaf roller moth, bridge worm and cabbage caterpillar.
3. Winter irrigation is used for winter irrigation in the idle land and wheat fields and orchards, which can kill the eggs of the rhizosphere and the larvae of the gray planthopper, and greatly reduce the oxygen content in the soil and the sudden drop in temperature. The emergence rate of cockroaches.
4. Scrape hides a variety of pests in the rough skin, bumps and cracks. Over the winter, scrape these bark with a knife, especially to scrape the branches. To master the apple tree light scraping, to see the yellow-green bark; the pear and jujube bark can be scraped and deep scraped to see the red endothelium. When scraping the bark, lay out plastics and other things, so that the scraped skin can be concentrated or burned.
5. Whitening can eliminate wintering pests in the trunk and bark seams. The whitening agent is formulated by: 10-12 parts of quicklime, 2 parts of clay, 36-40 parts of water, 2 parts of stone sulphur solution, and 1-2 parts of salt. Dissolve and mix the above materials, pour in the stone sulphur mixture and clay and mix well. The coating amount is not subject to downflow.
6. When the pruning fruit tree is cut in winter, the branches with insects, wormholes or eggs are cut off and burned intensively, which can achieve the effect of killing two birds.
7. Cold killing means low temperature treatment, all the doors and windows of the granary are opened, so that the temperature drops below -5 °C, and freezing for a long time can inhibit the reproduction of pests and reduce the damage.
8. Fumigation with 5% dichlorvos emulsion, 400 ml per 1000 m3, spray granary, cotton bunk, and closed for 4-5 days for 20-25 times of water. The control effect on wheat moth and rice elephant is over 90%.
9. Apply 40% omethoate, 50% monocrotophos or 50% methamidophos 200 times solution, and apply the top heart, branches and buds of hibiscus, pepper, fruit tree, etc. to prevent wintering mites.
10. Spray in the surrounding weeds in wheat fields, orchards, etc., using 2.5% deltamethrin, 20% chlorpyrifos 4000-5000 times solution, or 50% methamidophos, 50% monocrotophos 2000 - 3000 times liquid, 4% enemy horse powder spray, can kill a large number of aphids, planthoppers and armor; spray the 1-2 times 3 to 5 degrees of stone sulfur mixture on the fruit trees after scraping, can effectively control pears Round cockroach, red spider; spray with 40% omethoate 1500-2000 times to prevent cockroaches.
1. Deep ploughing can turn underground pests such as cockroaches to the ground and freeze them; it can also destroy the chamber nests of cotton bollworms, armyworms, wheat leaf bees, aphids and other pests, and change their orientation to prevent emergence or hatching. It is advisable to carry out deep ploughing at the end of autumn and winter, and generally plow 13-15 cm.
2. Jieyuan first removes weeds and destroys the wintering environment of locusts and ash. The leaves, leaves, and gluten of the fruit trees are cleaned, crushed, and piled up to kill more than 90% of the corn borer, millet ash, leaf roller moth, bridge worm and cabbage caterpillar.
3. Winter irrigation is used for winter irrigation in the idle land and wheat fields and orchards, which can kill the eggs of the rhizosphere and the larvae of the gray planthopper, and greatly reduce the oxygen content in the soil and the sudden drop in temperature. The emergence rate of cockroaches.
4. Scrape hides a variety of pests in the rough skin, bumps and cracks. Over the winter, scrape these bark with a knife, especially to scrape the branches. To master the apple tree light scraping, to see the yellow-green bark; the pear and jujube bark can be scraped and deep scraped to see the red endothelium. When scraping the bark, lay out plastics and other things, so that the scraped skin can be concentrated or burned.
5. Whitening can eliminate wintering pests in the trunk and bark seams. The whitening agent is formulated by: 10-12 parts of quicklime, 2 parts of clay, 36-40 parts of water, 2 parts of stone sulphur solution, and 1-2 parts of salt. Dissolve and mix the above materials, pour in the stone sulphur mixture and clay and mix well. The coating amount is not subject to downflow.
6. When the pruning fruit tree is cut in winter, the branches with insects, wormholes or eggs are cut off and burned intensively, which can achieve the effect of killing two birds.
7. Cold killing means low temperature treatment, all the doors and windows of the granary are opened, so that the temperature drops below -5 °C, and freezing for a long time can inhibit the reproduction of pests and reduce the damage.
8. Fumigation with 5% dichlorvos emulsion, 400 ml per 1000 m3, spray granary, cotton bunk, and closed for 4-5 days for 20-25 times of water. The control effect on wheat moth and rice elephant is over 90%.
9. Apply 40% omethoate, 50% monocrotophos or 50% methamidophos 200 times solution, and apply the top heart, branches and buds of hibiscus, pepper, fruit tree, etc. to prevent wintering mites.
10. Spray in the surrounding weeds in wheat fields, orchards, etc., using 2.5% deltamethrin, 20% chlorpyrifos 4000-5000 times solution, or 50% methamidophos, 50% monocrotophos 2000 - 3000 times liquid, 4% enemy horse powder spray, can kill a large number of aphids, planthoppers and armor; spray the 1-2 times 3 to 5 degrees of stone sulfur mixture on the fruit trees after scraping, can effectively control pears Round cockroach, red spider; spray with 40% omethoate 1500-2000 times to prevent cockroaches.
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