Spodoptera litura and Spodoptera exigua are omnivorous pests in autumn, which can harm cruciferous flowers such as cauliflower and cabbage, as well as vegetables such as alfalfa, asparagus, green onions, leeks and leeks, with many peaks, large amount of occurrence, and obvious hazards in the field. Characteristics, attention should be paid to timely prevention and control, especially in the seedling stage and transplanting period, attention should be paid to avoiding the shortage of seedlings and ridges and large-scale insects.
5% chlorantraniliprole suspending agent 1000 times solution, or 15% indoxacarb EC 2500 times solution, or 10% chlorfenapyr suspension 1000-1500 times solution, or 3.4% emamectin benzene 2500 times solution of formate emulsifiable concentrate, 500-600 times solution of 10 billion spores/ml of short-lived bacillus suspension, or 500 times of 1 billion PIB/ml of Spodoptera litura nuclear polyhedrosis virus suspension, or 50 g / liter of urea emulsifiable concentrate 1000 times solution, or 10% polychlortetracycline suspension 2000 times solution, or 60 grams / liter of ethyl spinosyn suspension 1500 times solution spray control. According to the habit of the two larvae crouching, try to spray the medicine one hour after sunset or on a cloudy day, and add the adhesive as appropriate. Fields with serious overlaps in the generations will be re-treated once every 3 to 5 days after the first prevention and treatment, paying attention to the rotation of drugs to improve the insect control effect and reduce pest resistance. For the continuous harvesting of crops, drugs with a shorter safety interval should be used.
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