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Seeing frass usually means the colony has been there for at least two years.—Sacbee.com, 10 Mar. 2026 Finding frass on tomato leaves or the soil below your plants is sometimes easier than finding the green hornworm perfectly camouflaged among the green vines.—Barbara Gillette, The Spruce, 9 Mar. 2026 In contrast to dusty frass, aphids slurp sap so rich in sugar that their feces coats surrounding surfaces in, essentially, maple syrup.—Steven Sullivan, The Conversation, 29 Sep. 2025 Any squash plant that wilts overnight should be inspected; look for entrance holes at the base of plants and the presence of sawdust-like frass.—Arricca Elin Sansone, Southern Living, 23 Apr. 2025 See All Example Sentences for frass
Word History
Etymology
German, insect damage, literally, eating away, from Old High German vrāz food, from frezzan to devour — more at fret