Rice field pests and diseases are typically concentrated and cover small areas, making it an ideal time for pest control. In our region, the main pests in Putian include Laodelphax striatellus (small brown planthopper), aphids, rice locusts, black streaked dwarf disease, and stripe leaf blight. This year, there is still a possibility of rice virus disease outbreaks, which remains a key focus for prevention and control during the seedling stage. The trend of borers is increasing, so we must pay close attention. Continuous public awareness campaigns and technical guidance should be carried out to implement comprehensive measures against pests such as the small brown planthopper, ensuring the safety of rice production.
First, the trend of pests and diseases in Putian
　　 1. The first generation of rice virus disease in wheat fields is showing a light trend. According to surveys conducted in mid-May, the density of the first generation of gray planthoppers was only 1-2 heads per square meter, the lowest in the past decade. However, with the harvest of wheat, these planthoppers have moved into Putian. Given the wide range of hosts for Laodelphax striatellus, there are many insect sources in the area, and rice virus disease still poses a threat to rice crops. Local authorities must overcome complacency and take full advantage of this critical period to carry out comprehensive pesticide treatments.
　　 2 . Rice locusts and mites have declined. According to investigations at the end of March, the number of winter worms in the base acres was 220 to 310, compared to the same period last year. The damage caused by the three types of mites was minimal, indicating a light trend.
In addition, common pests in Putian include rice thrips and rice weevils. It is important to monitor and manage them effectively.
Second, prevention and treatment recommendations
　　 1. Guiding principle: Focus on controlling ash, while also treating other pests like rice weevils, rice locusts, and aphids.
　　 2 , timing and frequency of prevention.
The first application should be done before May 30 or after transplanting, removing the film (or non-woven fabric) from the seedbed, one day after removal. The second application should be 1-2 days before transplanting. In Putian, once the film or non-woven fabric is removed, insect-proof nets should be immediately installed, and only one application is needed 1-2 days before transplanting.
　　 3 , unified pharmaceutical formula.
Controlling gray planthoppers: 30% pyrithrin emulsifiable concentrate 30g per 40kg of water, or 20kg with a backpack sprayer. Weeds around the fields should also be sprayed to eliminate any gray planthoppers that may be present on the weeds.
Controlling borers: 1-2 days before transplanting, apply 20% Kangmu or 48% width of 5ml/90ml of green look.
Third, matters needing attention
　　 1. Green is highly toxic to fish, so proper safety precautions should be taken to prevent runoff into fish ponds.
　　 2 , emphasize using drugs according to the formula to ensure effective control.
　　 3 , if the rice is sown and germinated, control the gray planthopper immediately after planting and emergence.
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