Spodoptera litura and Spodoptera exigua are omnivorous insects in autumn, which can harm cruciferous families such as cauliflower and kale, as well as scallions, asparagus, scallions, leeks, leeks and other vegetables. They have many peaks, occur in large quantities, and have obvious hazards in the field. Characteristics, attention should be paid to timely prevention and treatment, especially during the seedling stage and during the period of transplanting, care should be taken to avoid the occurrence of ridges and locusts and large areas of insect pests.
The use of 5% chlorantraniliprole succinamide suspension 1000 times, or 15% Indoxacarb EC 2500x, or 10% chlorfenapyr suspension 1000-1500x, or 3.4% methylamino avermectin benzene Formate cream 2500 times, or 100 million spores/ml Bacteroides suspension 500 to 600 times, or 1 billion PIB/ml Autographa californica nuclear polyhedrosis virus 500 times, or 50 grams / Lushengyu urea emulsifiable concentrate 1000 times solution, or 10% doxorubicin suspension 2000 times solution, or 60 g/liter spinosad suspension agent 1500 times spray control. According to the habit of nocturnal larvae larvae, spray as much as 1 hour after sunset or on cloudy days. Apply adhesives as appropriate. Those fields that have been overlapped for generations are severely re-treated once in the first 3 to 5 days after the first prevention and treatment. Attention should be paid to rotating medications to improve the pest control effect and reduce insect pest resistance. When medicines are continuously harvested, drugs with shorter safety intervals should be used.
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