Mz 8.1 Penicillium oxalicum2018-04-10T09:00:20-05:00

National Seed Health System

Mz 8.1  Penicillium oxalicum

DATE: 2001
PATHOGEN: Penicillium oxalicum (Penicillium spp.)
HOST: Maize (Zea mays)
COMMON NAME: Penicillium ear rot; blue eye; blue mold
METHOD: Mz 8.1 Blotter test (Handoo and Aulakh, 1979) (formerly Cf 9.1)
METHOD CLASS: Standard (A)
SAMPLE: 400 seeds, 4 replicates of 100 seeds


1. Surface sterilized in 2% NaOCl for 10 min.

2. Incubate on moist blotter at 20°C for 2 hr.

3. Transfer to a freezer at -20°C for 24 hr.

4. Incubation at 20°C for 7 days under cycles of 12 h UV light and 12 h darkness.


Handoo, M. L. and Aulakh, K. S. 1979. Seed-borne fungi of maize in India. Seed Research. 7(1):41- 47.