University of Illinois, Illinois Natural History Survey Fungarium (ILLS)
ILLS00158898
15505
Biscogniauxia marginata (Fr.) Pouzar
Xylariaceae
O.A. Plunkett 1922 AS Nummularia discreta (Schw.) Tul.
O. A. Plunkett
364
1922-06-22
22 June 1922
United States, Illinois, Pike, New Canton
39.622496 -90.886287 +-3036m. WGS84
host: Malus pumila P. Mill.
Control measures were pruned and sprayed with limesulfur. Size of field was 10 acre, infecton in field was 10%, infection on plant was never over 1 canker on very large limbs. Past prevalence was bad 3 years ago, usual damage was loose a few limbs each ye