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本文报道了分月扇舟蛾核型多角体病毒的室内毒力测定。结果表明，接种３龄幼虫可湿性粉剂的致死中浓度ＬＣ５０为１．４３×１０２ＰＩＢ／ｍｌ、乳剂ＬＣ５０为３．２５×１０２ＰＩＢ／ｍｌ，与病毒标准品ＬＣ５０的５２．２３ＰＩＢ／ｍｌ相比差异不显著，可湿性粉剂的ＬＣ５０比乳剂的ＬＣ５０低５６％，并有缩短潜伏期的趋势，表明可湿性粉剂杀虫效果优于乳剂。致死中时ＬＴ５０值随感染浓度增加而减少，同一浓度感染不同虫龄幼虫，病毒感染潜伏期随虫龄增加而延长。
In this paper, we report the indoor toxicity of Sparivorus moth nuclear polyhedrosis virus. The results showed that the LC50 of LC50 of 3.30 × 102PIB / ml and LC50 of 3.25 × 102PIB / ml for the 3rd instar larvae inoculated at the lethal level were not significantly different from that of 52.23PIB / ml of the virus standard LC50 Significantly, the LC50 of wettable powders is 56% lower than the LC50 of the emulsions, and there is a tendency to shorten the incubation period, indicating that wettable powders have better insecticidal effects than emulsions. The lethal LT50 value decreased with the increase of infection concentration. In the same concentration, larvae of different instar larvae were infected, and the incubation period of virus infection was prolonged with the increase of insect age.