An Aspiration System for Meteorological Sensors Used in Epidemiological Studies

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Abstract
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. [This system was used to study the effects of environment on the epidemiology of fusiform rust (Cronartium quercuum (Berk.) Mujabe ex Shirai f. sp. fusiforme) at a field site near Patrick, South Carolina, USA].

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