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Research Paper
Title: Sequential sampling of ribes populations in the control of white pine blister rust (Cronartium ribicola Fischer) in California
Author: Offord, Harold R.
Date: 1966
Source: Res. Paper PSW-RP-36. Berkeley, CA: Pacific Southwest Forest & Range Experiment Station, Forest Service, U. S. Department of Agriculture; 14 p
Station ID: RP-PSW-036
Description: Sequential sampling based on a negative binomial distribution of ribes populations required less than half the time taken by regular systematic line transect sampling in a comparison test. It gave the same control decision as the regular method in 9 of 13 field trials. A computer program that permits sequential plans to be built readily for other white pine regions is described.
Key Words: Cronartium ribicola; ribes surveys; sampling theory; sequential sampling; costs
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Citation
Offord, Harold R. 1966. Sequential sampling of ribes populations in the control of white pine blister rust (Cronartium ribicola Fischer) in California Res. Paper PSW-RP-36. Berkeley, CA: Pacific Southwest Forest & Range Experiment Station, Forest Service, U. S. Department of Agriculture; 14 p.