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Oak Sawflies

Oak Sawflies are tiny fly-like, nonstinging wasps. The short-lived adults feed on pollen and nectar and do not cause any feeding damage, but their caterpillar-like larvae, on mass, can create extensive damage to oak canopies. There are several species of Oak Sawflies such as scarlet oak sawfly (Caliroa quercuscoccineae) which is native to the eastern… Continue reading Oak Sawflies

Yellowing Yews

Yellowing Yews (Taxus spp.) can be caused by a variety of things such as the soil being too wet or too dry, disease, insect pests, winter desiccation, salt damage, snow damage, animal grazing, animal urine, transplant shock, nutritional deficiency or too high or too low of a soil pH. Properly diagnosing the problem takes a… Continue reading Yellowing Yews

Pear Slugs (Caliroa cerasi) on Purple Leaved Sand Cherry

Pear slugs or pear sawfly (Caliroa cerasi), are also known as cherry slugs. They are pests of several fruit trees primarily pear and cherry (including purple leaved sand cherry), but also plum, quince, serviceberry, Juneberry and occasionally apple. They also feed on a few ornamentals such as cotoneaster, hawthorn, buttonbush, and mountain ash. Pear slugs are… Continue reading Pear Slugs (Caliroa cerasi) on Purple Leaved Sand Cherry

Hydrangea Wood Borers

Hydrangea Wood Borers tunnel through the inside of stems, branches, trunks and larger roots, damaging the vascular system that is essential for the transportation of food and water for the plant. This causes wilting and yellow of leaves as well as branch and stem dieback. In small numbers they are easy to control simply by… Continue reading Hydrangea Wood Borers

Vole Problems in Ornamental Gardens, Lawns, Orchards and Vegetable Gardens

Voles are small mouse-like rodents that can be highly destructive to lawns, ornamental gardens, vegetable gardens, orchards, forests and some field crops. They tunnel around underground creating an elaborate network of tunnels from which they use to feed on roots, tubers, and bulbs. Above ground they feed on seeds, berries, fruits, vegetables, herbs, grasses and… Continue reading Vole Problems in Ornamental Gardens, Lawns, Orchards and Vegetable Gardens

Rudbeckias

Rudbeckias with their daisy-like flowers and long blooming time are real work horses in the mid-summer to mid-fall gardens. They are all native to North America, easy to grow and relatively disease and pest free. There are 25 species in all with many varieties and cultivars offering a range of colours from bright yellow, through… Continue reading Rudbeckias

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