Strawberry: Spittlebugs
Photo by: A.L. Antonelli
Biology
Spittlebugs feed on many plants. On strawberry, the nymphs feed on the leaves and leaf stems, preferring the tender new growth. Infested plants are stunted, and leaves may be distorted or killed. They may also feed on buds, blossoms, and fruit, which can be distorted.
Spittlebug nymphs are pale to green in color and are typically covered with a distinctive white, foamy mass of protective spittle. The nymphs and spittle are present for 1 to 2 months on the plants beginning around April or May.
The adult spittlebugs are mottled gray or brown. They are about 1⁄4″ long. Spittlebugs overwinter as eggs laid in the fall.
Management Options
See "Using Integrated Pest Management (IPM) in the Landscape" for successful problem management techniques.
Non-chemical Management
Select non-chemical management options as your first choice!
- Hand-picking may be sufficient control in home gardens.
- Wash spittle from plants with a strong stream of water.
- Several predators including yellowjackets prey on spittlebugs. Avoid use of broad-spectrum insecticides which kill beneficial insects.
Chemical Management
IMPORTANT: Always read and follow label directions when working with pesticides.
For more information on using pesticides visit :
- Apply when blossom buds appear.
- DO NOT apply when open blossoms are present to avoid bee poisoning.
- Control of spittlebugs with chemicals is almost impossible once spittle masses are present.
Approved Pesticides
If you choose to use a pesticide, some examples of products that are legal in Washington are listed below. Some products are labeled for just INDOOR or just OUTDOOR use, or may allow both uses. Be sure to choose a product appropriate for your situation. Always read and follow all label directions.
WSU Extension programs and employment are available to all without discrimination.
Evidence of noncompliance may be reported through your local Extension office.