Aphids are one of the most common pests that can do a considerable amount of damage to all types of indoor and outdoor plants. It says aphids are pear-shaped, soft, and they can be varying shades of white, black, red, gray, brown, yellow, or green. Some aphids develop wings and some do not. These tiny pests often feed on the sap of foliage similar to their body color.
Aphids leave behind a sticky, thick substance known as honeydew.
This sticky substance can pose a problem when it becomes black and moldy. It covers foliage to the extent of blocking out necessary light which prevents photosynthesis. This excretion can also create a sticky situation when it drops onto automobiles, windows, lawn furniture, and other outdoor items. Ants are attracted to this substance which adds to the problem. When checking plants for aphid infestation, check plants having tender new growth.