The Thrips flevas Schrank is a new outbreak in Kandelia in recent years. It belongs to the family Thripidae, Thripidae, and polyphagous pests. The individual is relatively small, hidden in the curling of the new leaf edge during the day and the fruit of the sepals, it is difficult to find, often misdiagnosed as a disease control caused by a substantial reduction or even destroy the garden. The investigation of the main Kandelia canton origin in Minjiang County, Anhui Province, revealed that the occurrence rate of this insect was 100%, which has become one of the most important pests in Kandelia production. 1 The larvae of the heart, leaves, buds and young fruit of the eggplant are sucked by adult worms and nymphs. When the leaves are damaged, the young leaves of the damaged plants are curled inwards and cannot be normally opened. With the growth of the plants, the upper leaves of the whole plant are curled inwards, cannot be opened, the degree of plant development is small, and photosynthesis is weakened. The young fruit suffered an early injury and became deformed. When the young fruit was damaged, the skin of the fruit was rough, and dark brown marks remained. The commodity value was reduced. 2 Morphological identification of the adult yellow body, about 1mm long, 2 pairs of wings, antennae 7 sections. Egg length 0.2mm, pale yellow, produced in the tender leaf tissue. Nymphs have no wing buds, no single eyes, and compound eyes are red. Pre-cockroaches are 1 mm long, and have no single eyes; they are about 1 mm long, yellowish-white, 3 monocular, and red. 3 Prevention and control methods 1 Biological control Protect the natural enemies of southern floes, grass ridges, and spiders to control the damage of melons. 2 Agricultural prevention and control Adopt pest control nets to cultivate insect-free seedlings, colonize insect-free and strong seedlings, strengthen fertilizer and water management, and make plants grow robustly. According to the characteristics of low melon soil moisture, the melons and horses need to keep moist in the field, reduce the rate of larvae, and also have a certain pest control effect. 3 Chemical control After the emergence of the first branch of Kandelia cannabis, the monitoring was strengthened and the drug was found to be hazardous. Can use 10% imidacloprid 2000 times, 1% avermectin 2000 times, 10% dilute 1500 times, 2% dish hi 1000 times evenly spray, leaf wet and not suitable, continuous control 2 ~ 3 times. The above-mentioned agents need to be used alternately in order to delay the development of resistance of the insects.
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