From May 1-5, there were 139 moths (6 heads in the same period of 2016) and the moth peaked on May 8-14, attracting 108 insects (25 heads in 2016). It is expected that the mid-to-late mid-May period will enter the first generation of the incubating period of the second generation of infertile eggs, and will enter the peak of egg hatching in late May. From the lamp-induced results, the number of moths is larger than last year, and the moth has a long period and is harmful for a long time. Will be heavier than in 2016. All township (town) agricultural technology stations and village agricultural technicians will be instructed to guide farmers in a timely manner to ensure the prevention and control of a second generation of warts.
Control period: May 19-29, high altitude areas after 4 to 5 days after spraying,
Fields of prevention and control: early season seed production, one-season seed production with inserted paternity, and paddy field (transplanting seedlings with herbs).
Control indicators: All fields with a dry sheath rate of 5% or more.
Chemical control:
Bacillus thuringiensis (Bt.) 8000IU/mg WP 200-300g or 40% Foggo Dispersible Granule 8-10g or 20% Chlorantraniliprole Suspension 10-15mL or 2.5% A per acre Victoria salt 50 ml or 48% chlorpyrifos EC 80 to 100 ml watered 50 kg spray.
Note: 1, protect, use of frogs, spiders, parasitic bees and other beneficial natural enemies.
2. The heavy fields will be sprayed once every 7-10 days.
3, after the drug to maintain the inch of water in the field 3-5 days.
4. Rotate the medicine.
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