Spatial Distribution Pattern of Nymphs of Fruhstorferiola tonkinensis in Mulberry Field

doi:10.7671/j.issn.1001-411X.2009.02.008

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Spatial Distribution Pattern of Nymphs of Fruhstorferiola tonkinensis in Mulberry Field
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                        10.7671/j.issn.1001-411X.2009.02.008
                    
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The index of dispersion(C) and probability distributions fitting were applied to study the spatial pattern of nymphs of Fruhstorferiola tonkinensis in mulberry field.The results showed that the spatial distribution patterns were aggregated in all instars of the nymph.The dispersion indexes of the nymphs were 879.578,152.742,22.972,6.053 and 6.150 from the 1st to 5th instar,respectively.The spatial distribution pattern of the 1st to 3rd instar nymphs were fitted to Neyman type A distribution,and the 4th and ...

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CHEN Qiang, ZHANG Zhen-fei, WU Wei-jian, QIU Si-juan, CHEN Yu-tuo. Spatial Distribution Pattern of Nymphs of Fruhstorferiola tonkinensis in Mulberry Field[J]. Journal of South China Agricultural University,2009,30(2):

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