감귤원에서 귤녹응애 공간분포 분석과 표본조사법 개발
(주)코리아스칼라
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서지정보
ㆍ발행기관 : 한국응용곤충학회
ㆍ수록지정보 : 한국응용곤충학회지 / 51권 / 2호
ㆍ저자명 : 송정흡, 홍순영, 이신찬
영어 초록
 ,  , The dispersion indices, spatial pattern and sampling plan for pink citrus rust mite (PCRM), Aculops pelekassi, monitoring was investigated. Dispersion indices of PCRM indicated the aggregated spatial pattern. Taylor’s power law provided better description of variance-mean relationship than Iwao’s patchiness regression. Fixed-precision levels (D) of a sequential sampling plan were developed using by Taylor’s power law parameters generated from PCRM on fruit sample (cumulated number of PCRM in cm<, SUP>, 2<, /SUP>, of fruit). Based on Kono-Sugino’s empirical binomial the mean density per cm<, SUP>, 2<, /SUP>, could be estimated from fruit ratio with more than 12 rust mites per cm<, SUP>, 2<, /SUP>, : ln(m)=4.61+1.23ln[-ln(1<, SUB>, -p12<, /SUB>, )]. To determine the optimal tally threshold, the variance (var(lnm)) for mean (lnm) in Kono-Sugino equation was estimated. The lower and narrow ranged change of variance for esimated mean showed at a tally threshold of 12. To estimate PCRM mean density per cm<, SUP>, 2<, /SUP>, at fixed precision level 0.25, the required sample number was 13 trees, 5 fruits per tree and 2 points per fruit (total 130 samples).
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