The first is the ground closure. This time is between mid-April and early May. Before mid-April, during the excavation of the citrus fruit fly, the underground soil was excavated to about 10 cm, exposing the earth to earthworms. From late April to early May, sprinkle 5% chlorpyrifos or 3% carbofuran granules on the surface of the orchard, and 48% of chlorpyrifos 500 to 800 times evenly sprayed on the soil surface under the canopy of the citrus orchard and landed in the previous year. Abandoned, touch the newly emerged immature adults.
The second is the adult trap. This time is from late May to late June. There are two ways to trap adult insects. The first is a 90% crystal trichlorfon 15 grams, 500 grams of brown sugar, 15 kilograms of water, and 50 to 100 grams of white wine. The liquid crystal is fully melted and sprayed on the upper middle of the upper third of a 30% citrus tree. Every 5 to 7 days, spray 4 to 5 times. If it rains after less than 24 hours after spraying, it should be sprayed again. The second is to hunt adult worms with poison baits on trees, and use 10% brown sugar, 1.5% white spirits, and 0.4% trichlorfon mixture in bottles (mineral water bottles, pesticide bottles, etc.) to suspend the branches, and the height of suspension is 1 meter. ~ 1.7 meters is appropriate, hanging 15 to 20 bottles per mu of citrus garden. Bottles of traditional Chinese medicine liquids are generally replaced every 5 to 7 days.
The third is the removal of the fruit. This time is between late August and November. The removal of pods is the most critical and cost-effective measure for Bactrocera maxima. Generally after the first two levels of scientific treatment, there may also be few pests that will directly harm the fruits. Therefore, from the end of August to November, every 3 days to the citrus orchard to remove premature unripe yellow fruit, completely harvested fruit, once a month after November to ensure that the ground without falling fruit. For the harvested fruits, either cut them and cook them for 5 to 10 minutes, or bury them more than 1 meter deep with pesticides, or cut them in thick plastic bags and suffocate them with pesticides. All three different methods are effective.
The fourth is transport quarantine. This is the period of citrus sales. Before the citrus enters the market, strict quarantine and market quarantine work. At the same time, it will strengthen the harmless treatment of discarded fruits from local waxing plants, land and water wharfs, citrus acquisition sites, etc., and purify the various environments in which citrus products are produced and sold.
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