RT Journal Article
SR Electronic
T1 Foliar and Growth Effects of Repetitive Summer Horticultural Oil Sprays on Trees and Shrubs Under Drought Stress
JF Arboriculture & Urban Forestry (AUF)
JO JOA
FD International Society of Arboriculture
SP 77
OP 81
DO 10.48044/jauf.1990.021
VO 16
IS 4
A1 John A. Davidson
A1 Stanton A. Gill
A1 Michael J. Raupp
YR 1990
UL http://auf.isa-arbor.com/content/16/4/77.abstract
AB A 2% Spray of Sunspray 6E Plus horticultural oil was applied, 2, 3 or 4 times to 52 species and cultivars of nursery trees and shrubs during the droughty summer of 1988. Phytotoxicity was rated monthly and found to be negligible. Growth effects were evaluated in October. Nine species showed significant differences in growth between treated and untreated plants. All treated plants averaged 1.7 cm more growth than untreated plants.