This collection contains slides, photographs, and other material regarding plant disease used by Leo J. Klotz, former professor
of Plant Pathology at the University of California, Riverside, in his research. The material in this collection has an emphasis
on citrus and avocado disease.
Copyright has not been assigned to the University of California, Riverside Libraries, Special Collections & Archives. All
requests for permission to publish or quote from manuscripts must be submitted in writing to the Head of Special Collections
& Archives. Permission for publication is given on behalf of the Regents of the University of California as the owner of the
physical items and is not intended to include or imply permission of the copyright holder, which must also be obtained by