Aphids

Aphids are small, soft bodied, pear-shaped insects with piercing, sucking mouth parts. They suck plant juices causing curling and distortion of leaves and stems in a wide range of plants. In addition, some aphids are a vector for many viral diseases, spreading them from plant to plant as they feed. They also secrete a sugary substance called honeydew as they feed. A black fungus called sooty mold grows on the honeydew and is not only unsightly but slows down photosynthesis.

Here are several different controls:

• A strong jet of water from your hose will usually knock them off. Repeat this as necessary.
• Spray with an insecticidal soap, Bonide All Seasons Spray Oil, Bayer Advanced Natria Multi-Insect Control, or Bonide Mite-X (all listed for organic gardening)
• Apply products containing malathion or pyrethrin
• Spray Bonide Eight
• Ornamentals can be treated with Bayer Advanced All-In-One Rose & Flower Care (DO NOT use on fruit trees, vegetables, or other food crops!).
• Ornamental trees and shrubs can be treated with Bonide Annual Tree & Shrub or Bayer Advanced 12 Month Tree & Shrub Protect & Feed. Always follow the label directions.
• More on aphids ...