apple grain aphid

noun

: a yellowish green aphid (Rhopalosiphum fitchii) with dark bands on the abdomen that produces its fertilized eggs on apple and related trees and feeds on their leaves in early spring but passes most of the growing season on various small grains and grasses

The Ultimate Dicitonary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now