Sharpshooter is one of the major insect pests on citrus. In recent years, due to factors such as weak citrus market and low prices, the production enthusiasm of orange farmers has been severely frustrated, and management has been extensive. As a result, the hazards have been increasing year by year, which has seriously affected the quality of the fruits. The worm had already seen the cub in the abdomen since early May. It is now the best incubation period for the larvae and it is also the best time to control the worm. Therefore, it is imperative that the majority of orange farmers must seize this critical period and carry out timely prevention and control.
Period of prevention and treatment: Mid-to-late May and early June.
Prevention:
1. Agricultural control: For the dense fruit trees, proper pruning and trimming should be done so as not to be shaded. For fruit trees with weaker tree vigor, fertilizer and water management should be strengthened to restore and enhance the tree vigor.
2. Chemical control: 48% chlorpyrifos emulsifiable concentrate 1000 times or 1.8% avermectin emulsifiable concentrate 3000 times or 40% paracetophos EC 2000 times spray. Even defense 2 times, interval 5-7 days.
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