Green Spots on White Orchid Flowers: Insect Damage, Not Fungus

What Are Those Green Spots?

Green spots on white Phalaenopsis flowers are typically insect feeding damage—likely from aphids, thrips, or other sucking insects that pierced the unopened buds. The green color is the flower's natural tissue showing through where pigment was disrupted.

Is It Harmful?

Cosmetic only. The spots don't spread like a disease. The flowers remain functional, just blemished. No treatment needed for current blooms.

Prevention

• Inspect buds regularly for tiny insects.
• Use yellow sticky traps.
• If infestation occurs, spray with insecticidal soap or neem oil early morning/evening.

Key Point

Don't confuse insect damage with fungal/bacterial spots, which are usually brown/black, sunken, or water-soaked. Green spots = insect bites.