Errata

We regret that in the layup of one paper in the November issue of the Journal, we inadvertantly transposed two lines of type on two columns. Please make the following corrections in your copy of the Journal of Arboriculture or request a corrected reprint from the authors of the paper.

The first two lines on the second column of page 271 should read:

The delay problems or response irregularities of tree crew injection can be minimized through the

The first two lines on the first column of page 272 should read:

tively reduce the majority of expelled material by simultaneously venting the injection system and

• © 1989, International Society of Arboriculture. All rights reserved.