How do I treat aphids on Spider plant?

Rinse the plant with a strong stream of water to dislodge most of the colony. Spray remaining aphids with insecticidal soap, repeat every 5–7 days for 2–3 cycles. For heavy infestations, neem oil or horticultural oil (1%) works well — spray all surfaces, including new growth. Severe cases on tough-leaved plants can be wiped down with a soft cloth dipped in alcohol-water solution.

How do I prevent aphids on Spider plant?

Inspect new growth weekly — aphids prefer young soft tissue. Avoid heavy nitrogen fertilizer — lush growth attracts aphids. Quarantine new plants for 2–3 weeks.

PEST DIAGNOSIS · CITED TO UC IPM — APHIDS

Aphids on Spider plant: how to identify and treat

How to identify aphids on Spider plant

Small (1–3 mm), pear-shaped, soft-bodied, usually green but can be black, yellow, pink, or grey. Often found in dense clusters on new growth, flower buds, and leaf undersides.

Damage signs to look for

Distorted or curled new growth, sticky honeydew on lower leaves and surfaces, sooty mold growing on the honeydew, yellowing on infested tissue.

Treatment ladder

Rinse the plant with a strong stream of water to dislodge most of the colony.
Spray remaining aphids with insecticidal soap, repeat every 5–7 days for 2–3 cycles.
For heavy infestations, neem oil or horticultural oil (1%) works well — spray all surfaces, including new growth.
Severe cases on tough-leaved plants can be wiped down with a soft cloth dipped in alcohol-water solution.

Prevention going forward

Inspect new growth weekly — aphids prefer young soft tissue.
Avoid heavy nitrogen fertilizer — lush growth attracts aphids.
Quarantine new plants for 2–3 weeks.

Life cycle

Indoors, aphids reproduce parthenogenetically (no males needed) — a single female can produce 50–80 offspring in her ~30-day life. Populations explode without intervention.

Source

Identification, treatment intervals, and prevention guidance per UC IPM — Aphids. Always follow the product label when applying any pesticide or horticultural oil.