A Sequential Sampling Plan for Red-Pine Sawfly Neodiprion nanulus Schedl.1,2

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A recent outbreak of the red-pine sawfly, Neodiprion nanulus Schedl., has caused considerable damage to plantation red pine (Pinus resinosa Ait.) in northern New York State. A study of sampling methods for this pest led to the development of the sequential technique for use in control work. The experimental design, methods, and techniques used in the study are described, and a sequential sampling plan based on egg-infested needles found on 6-inch twig samples is presented. It was found, in testing the plan on field-collected data, that 45% in sampling time would have been saved had the plan been available for use at the time the field counts were made, Also, a test on the accuracy of the sequential plan showed that it failed only once in 25 trials to predict accurately the degree of defoliation to be expected at sampled locations. The confidence levels for the plan were set at 90%.

Document Type: Research Article

Publication date: August 1, 1959

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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