Bamboo Weevil

Bamboo Weevil

Cyrtotrachelus longimanus

Appearance

Image of a Bamboo Weevil (Cyrtotrachelus longimanus) | Rentokil Pest Control NZ
  • Dark brown body, plump, almost cylindrical, 2 to 3.7 mm in length.
  • Antennae broaden at the tip, with the last 3 segments considerably larger and ending in well-defined antenna clubs.
  • The humped thorax conceals the head and has teeth-like indentations in its rounded front. Two large dimples at the back of the thorax.
  • Elytra (wing cases) are covered with small pits and bristly hairs.

Lifecycle

  • The female lays 27–35 eggs into the food substrate, larvae hatch and bore into the plant.
  • Larva undergoes up to 4 development phases and pupates inside the plant.
  • The lifecycle can be as short as 60 days in good conditions (35 °C, 75% relative humidity) leading to multiple generations per year.

Habits

  • Larva feeds on bamboo cane, but the weevil is also known to breed on cassava root.
  • Larva makes tubular passages along plant fibres and emerges leaving a perfectly round hole.
  • This species from East Asia is brought in with cargo on ships (e.g. tapioca products), wooden packaging and even wooden musical instruments.

Commercial Pest Control

0800 552 004

Free site survey

Contact Us

Woodworm Treatments for Commercial Premises

Residential Pest Control

0800 552 001

Mon-Fri: 8.00am - 5.00pm

Send Us A Message

Protecting Your Home and Family from Pests