PestMedium Severity

Aphids

Various genera including Aphis, Microsiphum, and Myzus

Small, soft-bodied insects that feed by sucking plant juices from leaves, stems, and shoots. Adults are 1/8 to 1/4 inch long with two elongated projections from the abdomen. Often found in clusters on undersides of leaves and may be coated with white, cottony wax.

Peak Season: Most active in cool temperatures with vigorous foliage growth, peak populations in spring and fall
Aphid colony showing characteristic clustering and honeydew production

Identification & Symptoms

What to Look For

Heavy infestations causing bud blight and leaf curling
Drooping and yellowing of leaves (chlorosis)
Light yellow 'pin prick' spots on foliage from feeding punctures
Clusters of insects on undersides of leaves
Clear, shiny honeydew on leaf surfaces
Black sooty mold growing on honeydew deposits
Dried white skins from molting visible on plants

Potential Damage

Reduced plant vigor from sap removal
Leaf curling and distortion affecting photosynthesis
Honeydew deposits attracting ants and promoting sooty mold
Transmission of plant viruses and diseases
Stunted growth and reduced plant health
Aesthetic damage to ornamental plants

Lifecycle

Most species overwinter as eggs in bark crevices or protected plant parts. Nymphs hatch in spring to become wingless adults (stem mothers) that produce live young in about one week. New generations occur weekly under favorable conditions. In fall, males and females are produced, with females depositing fertilized eggs for overwintering. Many species are vectors for plant viruses and mycoplasma.

Professional Treatment Approach

1

Early detection through regular monitoring of new growth

2

Systemic insecticide application for severe infestations

3

Natural predator encouragement (ladybugs, lacewings)

4

Horticultural oil applications during dormant season

5

Targeted spray applications during crawler stage

6

Professional assessment for large-scale management

Recommended Mauget Products

Imicide

Professional-grade treatment specifically effective against aphids.

View Product Details

Abacide 2

Professional-grade treatment specifically effective against aphids.

View Product Details

Need Professional Diagnosis?

Our certified arborists can help you accurately identify tree problems and develop an effective treatment plan using Mauget's proven injection systems.