David K. Willis

Univeristy of Wisconsin-Madison
Department of Plant Pathology and U.S. Department of Agriculture Vegetable Crops Research Unit
1630 Linden Dr
Madison, WI
USA 53706
Email: dkwillis@wisc.edu

Papers:
0519 Variation in aster yellows phytoplasma (Candidatus Phytoplasma asteris) titer in its insect vector, Macrosteles quadrilineatus