A photographic technique for estimating egg density of the white pine weevil, Pissodes strobi (Peck) /
| Main Author: | |
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Upper Darby, Pa. :
Forest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station,
1975.
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| Series: | USDA Forest Service research paper NE ;
318. |
| Subjects: |
| Item Description: | Cover title. |
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| Physical Description: | 4 pages : illustrations ; 27 cm. |
| Bibliography: | Includes bibliographical references (page 4). |