Eastern Tent Caterpillar: The eastern tent caterpillar overwinters as an egg. These masses are covered with a shiny, black varnish-like material and encircle branches that are about pencil-size or smaller in diameter. The caterpillars hatch about the time the buds begin to open, usually in early March. They emerge to feed on leaves in the…

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A well-cared-for plant in the landscape that suddenly begins dropping leaves or needles can be a very troubling sight. There is usually no need to be alarmed since leaf and needle drop often occurs as a natural part of the yearly growth cycle of many plants. Most evergreens will naturally drop their older needles or…

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Recently we have received quite a few calls from concerned homeowners and landscapers about holly trees. THE CONCERN Some of the leaves are turning yellow and falling off of the trees. In some cases it appears that a large amount of the leaves are doing this and it is quite alarming to homeowners worried that…

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Rust disease is a group of fungal diseases affecting the aerial parts of the plants. Gymnosporangium rusts are a group of closely related diseases caused by fungi that infect both junipers and woody plants in the rose family. These fungi must infect both types of plants to complete their life cycles.  Plants affected include: At…

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Winter damage, also known as cold damage, appears as stunted leaf development, clusters of buds where normally one would grow, branch dieback, and in some cases tree mortality. In most cases, Crape Myrtles can survive winter damage. It is advisable to wait until the end of June/beginning of July to cut back branches to new…

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Clean-up: Please get with your landscaper to ensure leaves are removed around your plants to prevent the spread of disease. March is the time to prune shrubs to remove dead, diseased, or malformed branches. With temperatures warming, your landscaper may apply the recommended one-inch layer of compost around all plants and cover it with a…

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