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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.
A foundation of IPM in urban landscapes is to put the right plant in the right place. This reduces plant stress and thus the long term costs of pest management. Impervious surface cover is linked to red maple condition and scale insect infestations. This publication describes impervious surface thresholds to use when selecting sites for planting red maples in urban landscapes.
This factsheet describes the life cycle and control of the pine tortoise scale, insects which accelerate the development of an unsightly black fungus on Christmas trees.
Impervious surface cover increases tree stress and reduces tree condition. We developed an impervious surface threshold to help tree care professionals select planting sites where red maples will thrive. In this publication we describe how to estimate impervious surface cover, on site, with the Pace to Plant technique.
