Kale, also known as leaf peony and cauliflower, is cold-tolerant, good-to-fat and sunshine-loving, and is an important foliage plant in winter and spring. During the cultivation of kale, the main insect pests were found as follows: 1. Aphid: The aphid has strong fertility and can be bred many times a year. A large number of locusts often cluster together in the leaves to harm the consuming juice. Control methods: In the initial stage of aphids, they can spray 40% omethoate, dimethoate 1000 to 1500 times solution or phoxim emulsion 1000 to 1500 times solution or fluke powder 30 to 75 g/mu. Second, leaf roller moth: commonly known as leaf leafworm, with its larvae roll leaf damage, often the leaves with silk, hidden in the bite. Control methods: 1. In the winter, the dry grass and leaves around the flower field are cleaned and burned to eliminate overwhelming parasites. 2. When kale leafroll moths or their worms are found, larvae in the leaf roll must be removed or directly crushed. 3. When a large number of insect pests occur, spray 50% of azadirachtin or 80% dichlorvos EC or 50% phoxim 1000 to 1500 times, or 1000 to 2000 times of amine naphthalene WP. Third, cabbage caterpillars: their adult activity during the day, eggs produced in the back of the leaves, larvae colony feeding on leaf meat, 3 years after the dispersion of harm, in the morning and evening, on the leaves, leaves or tender tips feeding, the victim leaves were missing . Control methods: 1. Manually catch larvae. 2. When there are a large number of larvae, 80% of dichlorvos or phoxim should be sprayed in time, or 1000 to 1500 times of larvae should be sprayed. Spraying with 40% omethoate 1500 to 2000 times also has a certain effect.
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