W. T. Johnson

Insects That Feed on Trees and Shrubs

H. Lyon, W. T. Johnson, 1976 .

Bait Studies for Fly Control.

G. S. Langford, W. C. Harding, W. T. Johnson, 1954 .

Observations on the Biology and Morphology of Ophyra Aenescens (Diptera: Muscidae)

W. T. Johnson, C. Venard, 1957 .

Insects that feed on trees and shrubs.. ed. 2

H. Lyon, W. T. Johnson, 1988 .

Insects that feed on trees and shrubs : an illustrated practical guide

H. Lyon, W. T. Johnson, 1976 .

ARBORICULTURE THE SCALE INSECT, A PARAGON OF CONFUSION 1

W. T. Johnson, 2006 .