SPATIAL DISTRIBUTION AND FIXED PRECISION SEQUENTIAL SAMPLING PLAN OF SUNN PEST (EURYGASTER INTEGRICEPS PUT.) IMMATURE STAGES IN RAINFED WHEAT FIELDS USING 0.1 M2 QUADRATE SIZE

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MOHISENI A.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: PLANT PEST RESEARCH Year:2017 | Volume:6 | Issue:4 Page(s): 31-48

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Title

SPATIAL DISTRIBUTION AND FIXED PRECISION SEQUENTIAL SAMPLING PLAN OF SUNN PEST (EURYGASTER INTEGRICEPS PUT.) IMMATURE STAGES IN RAINFED WHEAT FIELDS USING 0.1 M2 QUADRATE SIZE

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MOHISENI A. | Issue Writer Certificate

Keywords

DISPERSIONQ2

QUADRATEQ2

SAMPLINGQ2

EURYGASTER INTEGRICEPSQ2

WHEATQ1

Abstract

The sunn Pest, EURYGASTER INTEGRICEPS Put. (Heteroptera: Scutelleridae) is the most importantharmful insect in Iran, that feed on the leaf, stem and seed of WHEAT and reduce the quantity andquality of the crop. The method of quadrat SAMPLING is among the oldest techniques in ecology. During2004 and 2005, spatial distribution and fixed precision sequential SAMPLING plans of Sunn pestimmature stages by use of QUADRATE size 0.1m2 were investigated in rainfed WHEAT fields in Borujerdnorth of lorestan province, Iran. Based on R2 of regression, the Taylor's Power Law model provided amore adequate description of variance-mean relationships and Taylor's b were significantly>1 for allinsect stages, indicating that immature stages of sunn pest were aggregated in rainfed WHEAT fields. Green's fixed-precision sequential SAMPLING plan was designed for estimating immature stages of pestdensity at three fixed precision levels (0.1, 0.15 and 0.25), then these models were validated using 7-9independent data. To achieve a precision of 0.25 in Green's model, which is generally accepted in integrated pest management, IPM programs, it is necessary to take samples for 2nd, 3rd, 4th instars and the total number of 5th instar plus new winged insect with an average sample numbers (ASN) of 62, 87, 67 and 25, respectively. As the precision level was increased to 0.10, average sample size sincreased to 320, 358, 325 and 145, respectively. Use of these models can provide an effective management of sunn pest E. integriceps in rainfed WHEAT fields and minimize SAMPLING time and cost.

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APA: Copy

MOHISENI, A.. (2017). SPATIAL DISTRIBUTION AND FIXED PRECISION SEQUENTIAL SAMPLING PLAN OF SUNN PEST (EURYGASTER INTEGRICEPS PUT.) IMMATURE STAGES IN RAINFED WHEAT FIELDS USING 0.1 M² QUADRATE SIZE. PLANT PEST RESEARCH, 6(4), 31-48. SID. https://sid.ir/paper/234948/en

Vancouver: Copy

MOHISENI A.. SPATIAL DISTRIBUTION AND FIXED PRECISION SEQUENTIAL SAMPLING PLAN OF SUNN PEST (EURYGASTER INTEGRICEPS PUT.) IMMATURE STAGES IN RAINFED WHEAT FIELDS USING 0.1 M² QUADRATE SIZE. PLANT PEST RESEARCH[Internet]. 2017;6(4):31-48. Available from: https://sid.ir/paper/234948/en

IEEE: Copy

A. MOHISENI, “SPATIAL DISTRIBUTION AND FIXED PRECISION SEQUENTIAL SAMPLING PLAN OF SUNN PEST (EURYGASTER INTEGRICEPS PUT.) IMMATURE STAGES IN RAINFED WHEAT FIELDS USING 0.1 M² QUADRATE SIZE,” PLANT PEST RESEARCH, vol. 6, no. 4, pp. 31–48, 2017, [Online]. Available: https://sid.ir/paper/234948/en

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