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用83-28号半合成饲料配方,在实验室连续大量繁殖小菜蛾已获得成功。在温度23±1℃,相对湿度60-70％条件下,初孵幼虫至成虫的历期为14.7天(幼虫10.2天,蛹4.5天),得蛹率为54.1％,蛹重平均达101.8毫克/20头,羽化率为95.0％。成虫行为正常,雌虫平均寿命15.0天,雄虫为21.5天。每雌产卵量104粒(89—199粒)。该饲料成本低廉,配制简单,饲养管理方便,在22×15×5厘米的塑料饲养盒中1次平均可得蛹1669头。已在实验室连续饲养6代。
Successfully mass-produced diamondback moths in large numbers in the laboratory with semi-synthetic feed formulations 83-28. Under the condition of temperature 23 ± 1 ℃ and relative humidity 60-70%, the larvae to adult larvae were 14.7 days (larvae 10.2 days, 4.5 days pupa), the pupal rate was 54.1% and the average pupal weight was 101.8 mg / 20, the emergence rate of 95.0%. Adult behavior is normal, the average life expectancy of females 15.0 days, male 21.5 days. 104 eggs per female (89-199 grains). The feed has the advantages of low cost, simple preparation, convenient feeding and management, and an average of 1669 pupae in an average of 22 × 15 × 5 cm plastic feeding boxes. Has been in the laboratory for 6 generations.