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Insect & Disease

Insects and diseases can threaten tree health.  As soon as you notice any abnormality in your tree’s appearance, you should begin a careful examination of the problem.  By identifying the specific symptoms of damage and understanding their causes, you may be able to diagnose the problem and select an appropriate treatment.

Basic elements that influence plant health include sufficient water and light, and a proper balance of nutrients.  Too much or too little of any of these environmental conditions may cause plant stress.

Environmental stress weakens plants and makes them more susceptible to insect and disease attack.

Trees deal with environmental stresses, such as shading and competition for water and nutrients in their native environment, but adjusting their growth and development patterns to reflect the availability of the resources.  Although trees are adapted to living in stressful conditions in nature, many times the stresses they experience in the landscape are more than they can handle and may make them more susceptible to insects and diseases.

To learn more about how to properly diagnose your plants health problems, visit Treesaregood.org