At present, the pineapple winter fruit gradually turns color mature, skin becomes thin, sweet and fragrant, it is easy to incur bite to eat fruit, cause wounds, lead to pineapple rot deterioration, but also reduce the ability of cold resistance, so that the fruits are susceptible to freezing injury in the winter. Therefore, during the ripening of pineapple winter fruit, it is necessary to pay attention to poisoning and killing lice in order to protect the fruit. The specific method is as follows:
During the ripening of pineapple fruits, put poison baits in the pineapple garden every 10-15 days, and continuously put 2-3 times, each time, put 3-5 kg ​​per mu orchard, and evenly set 25-30 points in the orchard, each point Drop 80-100 grams. The preparation method of poison baits is to take 10 kg of high quality rice bran, 250 ml of 48% chlorpyrifos, 250 ml of 4.5% cypermethrin, 250 g of yellow sugar and 1000 ml of clear water. After dissolving the yellow sugar in clean water, add chlorpyrifos and cypermethrin, and stir and mix well. Then, pour it into high-quality rice bran, stir it down, and mix it evenly. Serve as poison baits.
If it is found that the fruit is very serious, spray 1000 times 2.5% deltamethrin solution or 1000 times 2.5% chlorofluorocypermethrin solution in the evening and spray evenly the leaves and fruits of the pineapple plant to begin to have drops of water. It is advisable to drip downwards. After biting and eating ripe pineapple, it will poison and die. Spray it once every 7-10 days and spray it twice in succession. Stop spraying before 10 days of fruit picking.
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