Crabapples and Insecticide Treatment - Knowledgebase Question

Medina, OH
Question by nanbonar
October 22, 2005
Our condo area has about 40 crabapples of several varieties; the majority are in various stages of disease. Pruning will be done. For cost/benefits would you recommend a spraying program (twice a year until results are shown) or injection program that lasts three years? Thank you.

Answer from NGA
October 22, 2005


Crabapples can be subject to a variety of pests and diseases, just as orchard apples can be. To some extent susceptibility depends on overall health of the trees, the innate resistance of the specific variety you are growing, and the prevalence of particular pests and diseases in your area. Sometimes too the weather each year can contribute to problems. For these reasons I would suggest you work with your local county extension to develop a routine preventive maintenance and pruning program. They will be able to help you determine what to spray for, the best product(s) to use, and the best timing for doing so based on the local weather each year. It is really better to develop a customized plan rather than simply "spray". Good luck with your trees!

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