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Weevils

Common Garden Pest

Entomology

Weevils are distinctive beetles characterized by their elongated snouts. These insects typically range from 3-10mm in length, varying by species. Their most distinctive features include:

  • Elongated snout with chewing mouthparts at tip
  • Elbowed antennae attached to snout
  • Hard wing covers
  • Pear or oval-shaped body
  • Six jointed legs with hooks
  • Colors range from brown to black with some having distict colors and patterns
  • Compact body structure
Weevil anatomy diagram

Reproduction Cycle

The average life span of a weevil is anywhere from a few months to a year and depending on the species:

  • Eggs: Most species will hatch within a few weeks.
  • Larva: The average weevil will complete this process in about a month
  • Pupa: Lasting typically several weeks to serveral months.
  • Adult: The adult weevils will live for anywhere from a few months to a year.
Aphid lifecycle diagram

Social Aspects

Most Weevils have a typical anti social behaviors while some species with social behaviors include:

  • Solitary living most of there lives alone.
  • Do not raise there young often hiding the eggs in a safe location
  • Territorial prodteecting resources and potential mates.
Aphid colony with ants

Treatment Options

  • Sticky traps in areas of known weevil infestation.
  • Use insecticidal soap
  • Pyrethrin based insecticides
Natural aphid treatment methods