An assessment of the incidence of ray blight disease of pyrethrum in 62 sampling units, containing 6 plants each.



A data frame with 62 rows and 2 variables:

[, 1]iNumber of diseased plants (from 0 to 6).
[, 2]nSampling unit size. Here, n = 6 plants per sampling unit.


Pethybridge SJ, Esker P, Hay F, Wilson C, Nutter FW. 2005. Spatiotemporal description of epidemics caused by Phoma ligulicola in Tasmanian pyrethrum fields. Phytopathology 95, 648–658. doi:10.1094/PHYTO-95-0648