| 王立红1,2.一品红花卉上烟粉虱的序贯抽样技术研究[J].植物保护,2007,33(4):74-76. |
| 一品红花卉上烟粉虱的序贯抽样技术研究 |
| Studies on the sequential sampling technique of Bemisia tabaci(Gennadius) on Euphoubia pulcherrima Willd |
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| DOI： |
| 中文关键词: 烟粉虱 一品红 序贯抽样技术 |
| 英文关键词:Bemisia tabaci(Gennadius) Euphoubia pulcherrima Willd sequential sampling technique |
| 基金项目: |
| 王立红1 2 |
| 1.浙江大学农业与生物技术学院 杭州310029;2.宁波出入境检验检疫局315012 |
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| 中文摘要: |
| 烟粉虱[Bemisiatabaci(Gennadius)]在花卉一品红上的为害十分猖獗,在调查分析的基础上,研究了烟粉虱在一品红上的序贯抽样技术。结果表明:烟粉虱成虫的平均拥挤度*m与平均密度x-回归方程为*m=-9.05+2.26x-,相关性极显著(0.799 1);以Iwao的序贯抽样为基础,结合Kuno的序贯抽样,提出复序贯抽样技术,防治指标上下限为T′0(n)=7n+2 5.39n,T″0(n)=7n-2 5.39n,截止线为T(n)=α+1/(D02-β-1/n),D0=0.15。 |
| 英文摘要: |
| The results showed that the regression equation of mean crowding(m) and mean density(x) of Bemisia tabaci was m=-9.05+2.26x,with a very high correlation coefficient.On the basis of the Iwao's sequential sampling technique and combined with the Kuno's sequential sampling technique,the complex sequential sampling was put forward.The upper limit,lower limit and close string were T′0(n)=7n+2 5.39n,T″0(n)=7n-2 5.39n,andT(n)=α+1/(D02-β-1/n),D0=0.15。(t=2,D0=0.15) for the target pest,respectively.The largest number of specimen was 18. |
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