Mites

Description:
Mites are very tiny (about the size of a pinpoint) arachnids. They are not susceptible to insecticides because they are actually closely related to spiders. Mites will establish webbing in protected crevices on a plant, such as stem and leaf joints. The mites may be difficult to see but the damage they cause is very evident and often serious.

Damage:
Mites suck the juices from leaves, flower buds, and even stems of plants. They usually cause yellow speckling or spots but may also cause bronzing, scorching and/or cellular distortion. The undersides of leaves will have tiny black dots where the mites have pierced the tissue. A good test for mites is to hold a white sheet of paper under the plant and lightly tap the plant. If little, slow crawling specks pepper the paper then you have mites.

Prevention:
The best way to prevent an infestation is to keep your plants well watered and wash off the foliage. Mites prefer dry, hot conditions. It is best to water in the morning, especially when rinsing off foliage. Watering in midday can cause leaf burn and watering in the evening promotes fungal growth overnight. Always inspect plants before purchasing them. Look for damage and webbing.

Management:
Mild Infestations: A mixture of soapy water is very effective at killing mites. Simply mix 5 or 6 drops of liquid dishwashing soap in one quart of water and spray onto the leaves (remember - wet foliage in the morning only.) Keep an eye out for beneficial insects, ladybug larvae and lacewings dine on mites.

Severe Infestations: Do not use insecticides on mites; mites are not insects. All insecticides will do is kill the beneficial insects and increase your mite population. Mites are treated with miticides such as hexakis (Vendex.) Always apply chemicals according label directions.