PestMedium Severity

Spittlebug (Froghopper)

Several species including Aphrophora, Clastoptera, Philaenus, and Prosopia (Hemiptera: Cercopidae)

Small jumping insects also known as froghoppers that create distinctive white frothy masses ('spittle') on foliage. Nymphs feed on plant sap and are completely enclosed in protective foam secretions during development.

Peak Season: Nymphs active spring through fall, adults peak in mid-summer
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Spittlebug showing characteristic foam masses and feeding damage

Identification & Symptoms

What to Look For

White frothy masses of 'spittle' clinging to foliage and stems
Dieback of plant tips and growing points
Loss of needles on conifers
Stunted growth and reduced vigor
Plant death if heavily infested and untreated
Yellowing and wilting of affected plant parts

Potential Damage

Nymphs and adults feed on plant sap with piercing-sucking mouthparts
Feeding stress causes tip dieback and needle loss
Reduced plant vigor from sap removal
Possible plant death in severe, untreated infestations
Aesthetic damage from unsightly spittle masses

Lifecycle

Eggs overwinter on host trees or nearby vegetation, hatching in spring after accumulating 30°F degree days. Nymphs begin feeding immediately, creating protective spittle masses. Feed until October, with adults becoming plentiful by mid-summer. Adults lay eggs by August. 1-2 generations annually depending on species.

Professional Treatment Approach

1

Systemic insecticide injection for trees

2

Foliar sprays targeting nymphs in spittle masses

3

High-pressure water to dislodge spittle and nymphs

4

Monitor for spittle masses during growing season

5

Maintain plant health to improve tolerance

Recommended Mauget Products

Imicide

Professional-grade treatment specifically effective against spittlebug (froghopper).

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Dinocide

Professional-grade treatment specifically effective against spittlebug (froghopper).

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