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Acorn Weevils: The Tiny Larvae in Your Acorns

Life Cycle

Acorn weevils overwinter in soil, emerge mid-summer. Females bore holes in acorns to lay eggs. Larvae feed inside until autumn, then emerge after acorns fall.

Testing Acorns

Float test: infested acorns float; sound ones sink. Great activity for kids.

Resource

Acorn Weevil information.

About Gardening: Planting Sprouted Acorns in Alabama; Shumard Oak Acorn Production: Timing, Quantity, and Variability; Gambel Oak Acorn Weevil: Soil Systemic for Edible Acorns; Are Fallen Acorns Alive? Seed Viability and Germination; Premature Acorn Drop: Weather-Related, Not Tree Health Issue; Acorn Production: Not Just Oaks, and Early in Landscapes; All About Acorns: The Fruit of the Oak Tree; Acorns on the Lawn: Harmless Nuisance or Real Problem?; Sawtooth Oak Identification: The "Mop-Head" Acorn Culprit; Heavy Acorn Crop 2011: Mast Year Explained & Cleanup Tips

Garden Articles

Oak Dropping Small Acorns and Leaf Tips: Drought and Twig Girdler

The Acorn Cycle: Why Some Years Are Lean

Why White Oaks Drop Tiny Acorns in Early Summer: The Pollination Story

Why Your Neighbor’s Oak Produced No Acorns This Year

Strawberry Weevil on Blackberries: Identify and Control

Pecan Weevil Control: Sanitation, Trunk Bands, Sprays

Poplar Weevil Damage: Identification and Management

Plants

Oak Thinning for Acorn Production: Wildlife Management Guide

When Acorn Squash Stops Producing

Can You Eat Unripe Acorn Squash?

Acorn Overload in Large Koi Pond: Management and Water Quality

Germinating Bur Oak (Mossy Cup) Acorns: Cold Stratify 30-60 Days, Plant Deep, Lime Annually

Boll Weevil Damage to Cotton: Feeding and Egg-Laying Habits

Immature Acorns: The "Paired Droppings" Under Oak Trees