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Techniques

An Aspiration System for Meteorological Sensors Used in Epidemiological Studies. J. M. Davis, Department of Plant Pathology, North Carolina State University, Raleigh 27650; R. I. Bruck(2), G. B. Runion(3), and F. L. Mowry(4). (2)(3)Department of Plant Pathology, North Carolina State University, Raleigh 27650; (4)School of Forestry and Environmental Studies, Duke University, Durham, NC 27706. Phytopathology 73:1246-1249. Accepted for publication 23 March 1983. Copyright 1983 The American Phytopathological Society. DOI: 10.1094/Phyto-73-1246.

Temperature and relative humidity measurements that reflect actual environmental conditions often require sensors that are aspirated and shielded from radiation. A simple, inexpensive meteorological aspiration system was designed for field use with an automatic electronic data logging device. The aspiration system requires 12-V DC batteries. The entire aspiration system was constructed from PVC (polyvinylchloride) pipe, which is inexpensive, easy to work with, and available in a variety of sizes. This system should provide a highly accurate data base with which the effects of environmental conditions on disease development can be assessed.