Identification on aphids
What's Happening
Aphids are small, soft-bodied, pear-shaped insects (1-4mm) that cluster on new growth, stems, and leaf undersides. Common indoor species include green peach aphid, cotton aphid, and melon aphid. They reproduce rapidly through parthenogenesis (asexual reproduction), allowing populations to explode quickly. Aphids are often accompanied by ants that farm them for honeydew. They enter homes primarily on contaminated nursery stock but can also arrive through open windows. Their preference for tender new growth makes them easy to spot but difficult to control once established.
How to Fix It
- 1
Look for clustering: Aphids congregate in dense groups on new growth, stems, and flower buds
- 2
Check for color variations: Green, black, brown, yellow, or pink depending on species
- 3
Inspect for cornicles: Two small tube-like structures projecting from rear of abdomen—unique to aphids
- 4
Watch for ant activity: Ants farming aphids are a telltale sign of infestation
- 5
Identify honeydew: Sticky, shiny residue on leaves below aphid clusters indicates active feeding
How to Prevent It
Quarantine new plants for 2-3 weeks; inspect under magnification before purchase; avoid bringing outdoor cuttings indoors without inspection; seal windows during aphid season. Inspect new growth weekly as aphids prefer tender tissue.