Table 2.

The reported frequency of spray use by commercial arborists to trees of a fungicide, insecticide, or a combination of both in 1982.

HostTotal No. that sprayedInsecticideFungicideCombination
Arbor-vitae393009
Ash4735111
Birch504514
Boxwood181503
Cherry3520114
Crabapple498437
Currant, alpine221147
Dogwood262114
Elm4629215
Euonymus454005
Fir, spruce, yew4736011
Hawthorn424929
Honeylocust464105
Horsechestnut2916310
Juniper4825122
Maple4937111
Mountain ash3418214
Oak4529016
Pine4733113
Rhododendron241617
Sycamore3981021
Tulip tree332607