In recent years, the occurrence of L. lucorum in tea trees in Fuyang City has been increasing, and it has risen from secondary pests to major pests. Spring tea is usually the first occurrence of damage in early April, the specific time is affected by the temperature, the end of the damage around April 20, after April 27 less harmful. The hatching rate and the first generation amount of overwintering eggs of L. lucidula are positively related to the rainy days in March. In rainy days in March this year, it is expected that the occurrence of the first generation of L. lucorum is greater, and the harm to spring tea is heavier.
To prevent the green locust from harming spring tea, the following measures can be taken. The weeds inside and outside the tea plantation, especially leguminous weeds, were removed before the beginning of April to eradicate the eggs produced in the young tissues of the weeds. Pay close attention to picking fresh leaves to reduce hazards. Conditions can be used black light, sex attractants, swatch trapping. It is forbidden to use chemical pesticides, plant-derived pesticides, mineral pesticides, and biological pesticides in the tea plantation during the tea-picking season. Chemical control should be performed before the pruning of spring tea after picking. At this time, pesticide spraying is not limited by the safety interval of pesticides. It can be based on different levels. Tea quality and safety require the selection of corresponding pesticides. More importantly, a generation of L. lucidum migrated to the tea garden to lay eggs before the pruning. The basic migration was completed in early May, and the favorable timing for spraying before pruning was used to eliminate the insect source before the Lusitania fly out of the tea garden. To reduce the harm to spring tea next year.
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