If you would like to make a contribution to the pages please send your
contribution to Roger Magarey rdm5@cornell.edu
before August 1, 1999.
Back
to Roger's web pages
We would like to thank the following contributing authors (In alphabetical order)
A.
F.G. Jacobs, D.
Hoppmann,
R D. Magarey (Editor), J.M. Russo, E. W. Park, J Sadler, R.
C. Seem (Editor) and K-P.
Wittich.
We thank the following who are valuable collaborators (in alphabetical order)
Jack Bailey, Terry Gillespie, Len Francl, Mark Gleason,
Wendy McFadden, Katherine Stevenson, Jim Travis and Ariena VanBruggen.
List of email
addresses
Contents
1.
Surface wetness duration
Surface wetness versus leaf wetness, definitions, Frequency distribution, plant pathology, pollution2. Measuring leaf wetness with electronic sensors
Types of sensors, Precision, Accuracy, Protocol, Scale considerations3 A measurement standard for surface wetness duration
5. Alternatives to the use of sensors