Anti-sucking fruitworms harm citrus six methods
The fruit sucking moth is the enemy of the citrus garden and is a moth that damages the fruit of the fruit at night. It is one of the main pests in mountainous or near-to-mountain orchards. The damage rate of navel oranges and mandarin oranges has risen from about 10% in previous years to 20%, and local places have reached more than 30%. The fruit grower calls it the night tiger and thornbug.
There are as many as 50 species of fruit-feeding tobacco moths, and their occurrence patterns, feeding habits, and living habits are different. It can occur in 2 to 4 generations in 1 year. In the south, the most common and severely harmful bird beetle larvae can occur for 4 generations in 1 year. That is, the overwintering ends in mid-June, and the first generation is from early June to mid-July. The second generation is from early July to late September. The third generation is from mid-August to early December. Both larvae and adults can survive winter. Adult insects fly strong, a wide range of activities, scattered during the day, lurking, from 6 pm to 5 am damage the fruit, especially at 7 to 9 pm when the largest number of adults, the most serious harm. Adults crouch on the fruit at night and penetrate the pulp with a needle puncture device. The flesh of the puncture hole of the victim's fruit rots and detaches one after another. It is difficult to detect the puncture hole of the victim's fruit during the harvest period, resulting in post-harvest rot.
The time of harm to Citrus syringae is longer, and the period from late September to late October is the peak period. Caused a lot of fruit before harvest, which seriously affected the yield and quality of citrus. The following six methods are introduced for prevention and control.
1, light repellent in adulthood, set 40 watts of yellow fluorescent lamps per acre 1 to 2, with the focus of the edge of the orchard, lights from 10 to 15 meters or so, to avoid adult fly hazards. According to the test, the insect population can be reduced by 72.9%, the fruit damage rate is only 0.61%, while the control area is 3.42% to 11.8%, which has a good effect on fruit preservation.
2. The light trapping and killing uses the frequency-vibration insecticidal lamp, and the reduction rate of the fruit-feeding tobacco moth can reach 80% or more. At the same time, killing adults such as leaf roller moths, chafers, and hornbills. Parks and fields are used as units, and lamps are installed in a unified manner. A lamp is installed every 40 to 60 mu, depending on the topography and terrain.
3, citronella oil to avoid the general 7 to 10 years of life of orange trees, each with about 10 ml of citronella oil (long age, large crown of citrus plants appropriate increase in the amount), were dropped on 8 to 10 pieces of paper ( The size of the paper sheet is 5x6 cm), and the medicine paper is evenly hung around the plant in the evening. The next morning, the medicine paper is retracted and stored in a sealed plastic paper bag, and the amount of drug can be reduced by half when reusing it. The insect population in the pesticide application area averaged 96.1%.
4. Chemical repellency Baishude is a new type of pyrethroid insecticide with contact and stomach toxicity. It has good effect on citrus crown sprayed with 5.7% Baishuyou EC 1500 times. There was no insect in the garden within 5 days after spraying, but pests could be seen again after 10 to 12 days. Therefore, from September to November, spraying once every 12 days will have better results. Stop spraying 2 weeks before fruit picking.
5. Fruit bagging Fruits orchards such as navel oranges and grapefruit that are particularly harmful to mountain citrus gardens and fruit-feeding tobacco moths should be bagged with fruit before they ripen. However, the prevention and control of spider mites and rust mites must be done before bagging.
6, artificial capture will be piled up in the orange orchard rotten fruit trapped together, killing, or using the fruit sucking fruitworm moth sucking on the surface for a long time immovable habits to capture.
There are as many as 50 species of fruit-feeding tobacco moths, and their occurrence patterns, feeding habits, and living habits are different. It can occur in 2 to 4 generations in 1 year. In the south, the most common and severely harmful bird beetle larvae can occur for 4 generations in 1 year. That is, the overwintering ends in mid-June, and the first generation is from early June to mid-July. The second generation is from early July to late September. The third generation is from mid-August to early December. Both larvae and adults can survive winter. Adult insects fly strong, a wide range of activities, scattered during the day, lurking, from 6 pm to 5 am damage the fruit, especially at 7 to 9 pm when the largest number of adults, the most serious harm. Adults crouch on the fruit at night and penetrate the pulp with a needle puncture device. The flesh of the puncture hole of the victim's fruit rots and detaches one after another. It is difficult to detect the puncture hole of the victim's fruit during the harvest period, resulting in post-harvest rot.
The time of harm to Citrus syringae is longer, and the period from late September to late October is the peak period. Caused a lot of fruit before harvest, which seriously affected the yield and quality of citrus. The following six methods are introduced for prevention and control.
1, light repellent in adulthood, set 40 watts of yellow fluorescent lamps per acre 1 to 2, with the focus of the edge of the orchard, lights from 10 to 15 meters or so, to avoid adult fly hazards. According to the test, the insect population can be reduced by 72.9%, the fruit damage rate is only 0.61%, while the control area is 3.42% to 11.8%, which has a good effect on fruit preservation.
2. The light trapping and killing uses the frequency-vibration insecticidal lamp, and the reduction rate of the fruit-feeding tobacco moth can reach 80% or more. At the same time, killing adults such as leaf roller moths, chafers, and hornbills. Parks and fields are used as units, and lamps are installed in a unified manner. A lamp is installed every 40 to 60 mu, depending on the topography and terrain.
3, citronella oil to avoid the general 7 to 10 years of life of orange trees, each with about 10 ml of citronella oil (long age, large crown of citrus plants appropriate increase in the amount), were dropped on 8 to 10 pieces of paper ( The size of the paper sheet is 5x6 cm), and the medicine paper is evenly hung around the plant in the evening. The next morning, the medicine paper is retracted and stored in a sealed plastic paper bag, and the amount of drug can be reduced by half when reusing it. The insect population in the pesticide application area averaged 96.1%.
4. Chemical repellency Baishude is a new type of pyrethroid insecticide with contact and stomach toxicity. It has good effect on citrus crown sprayed with 5.7% Baishuyou EC 1500 times. There was no insect in the garden within 5 days after spraying, but pests could be seen again after 10 to 12 days. Therefore, from September to November, spraying once every 12 days will have better results. Stop spraying 2 weeks before fruit picking.
5. Fruit bagging Fruits orchards such as navel oranges and grapefruit that are particularly harmful to mountain citrus gardens and fruit-feeding tobacco moths should be bagged with fruit before they ripen. However, the prevention and control of spider mites and rust mites must be done before bagging.
6, artificial capture will be piled up in the orange orchard rotten fruit trapped together, killing, or using the fruit sucking fruitworm moth sucking on the surface for a long time immovable habits to capture.
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