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用 Ac N P V 病毒对德昌松毛虫 Dendrolim us p unctatus tehchangensis Tsaiet Liu 进行初感和回感试验,采用浓度为 1×105 P I B/m l,第 16 天的死亡率达到 98% ,用同一浓度回感试验,第14 天的死亡率达到 100% ,效果较明显。
The initial and reversion test of Dendrolimus p unctatus tehchangensis Tsaiet Liu was carried out with Ac N P V virus at a concentration of 1 × 10 5 P I B / m l. The mortality rate reached 98% on the 16th day with The same concentration of feedback test, the mortality rate of 14 days to 100%, the effect is more obvious.