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Browse by Author: Jamie Bookwalter
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Elongate Hemlock Scale

By: Jill Sidebottom, Jamie Bookwalter Christmas Tree Notes

This publication describes the symptoms, life cycle and control of the elongate hemlock scale, a pest that causes white, waxy spots on the upper surface of Christmas tree needles.

Needle Cast, Diaporthe eres/Phomopsis in Christmas Trees

By: Jill Sidebottom, Jamie Bookwalter Christmas Tree Notes

This factsheet describes the symptoms, life cycles and control of needle cast diseases in Christmas trees.

Control of Root Feeding Insects in Fraser Fir Christmas Trees

By: Jill Sidebottom, Jamie Bookwalter Christmas Tree Notes

This publication covers the identification, life cycles and treatment of several species of insects, such as May and June beetle grubs and root aphids, that feed on and affect root growth of Fraser fir Christmas trees.

Spruce Spider Mite on Fraser Fir

By: Jill Sidebottom, Jamie Bookwalter Christmas Tree Notes

This publication describes scouting for and controlling the spruce spider mite, an insect that causes yellow spots on needles of Fraser firs.

Minor Pests of Fraser Fir Christmas Trees

By: Jill Sidebottom, Jamie Bookwalter Christmas Tree Notes

This factsheet about Fraser fir pests covers white pine cone beetles, bagworms, gypsy moths, Botrytis shoot blight, sooty molds, fern/fir rust, Rhizosphaera needlecast, Annosum root and butt rot, Rosellinia blight, Nectria canker, Armillaria, and Phomopsis.

Rosette Bud Mite on Fraser Fir

By: Jill Sidebottom, Jamie Bookwalter Christmas Tree Notes

This publication describes the control of the rosette bud mite, a mite that destroys the buds of Fraser firs resulting in holes in the canopy, flat sides, weak bottoms and uneven and/or light density.

Determining Formulation Per Acre in a Christmas Tree Field to Achieve Target Ai Per Acre

By: Jerry Moody, Jamie Bookwalter

This factsheet provides general instructions for determining formulation per acre as well as an example using Tristar.