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Insects and diseases can be treated before buds open in spring! Find out more! Many insects that feed on tree leaves survive winter in or on the bark of branches or twigs. Some hide in the scales that surround leaf buds. Late winter or early spring treatment with a horticultural oil spray will greatly reduce the population of these insects or their eggs. Research at the Bartlett Tree Research Lab has discovered that gypsy moth can be managed with treatment before the eggs hatch. This treatment can be combined with horticultural oil to manage a broader range of insect pests. Fireblight, a common disease of pear, apple cotoneaster and other members of the rose family, can also be reduced by late winter or early spring treatments. This is one of the best ways to manage this potentially devastating disease. For expert diagnosis of your tree and shrub problems, contact your local Bartlett arborist. |
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