Spotted vegetable weevil

Constraint - Spotted vegetable weevil

Description

• Larvae are white, legless, with orange brown heads and grow up to 8 mm long

• Adults are mottled grey-black weevils, grow up to 7 mm long with the definite weevil snout

Symptoms

• Adults chew the cotyledons, leaves and stems of emerging crops

• Small plants may be eaten to ground level

Damage

• Yield reduction can occur if populations are high and remain uncontrolled

Control

Spraying with a synthetic pyrethroid can give control, when applied to green plant material. Control can be difficult when there is no or little green material.

Links and Resources

AOF -Desiantha weevil/Spotted vegetable weevil Description, damage, monitoring, and management.

CSIRO - Protecting germinating grain. Spotted vegetable weevil Information on different sorts of pests, risk factors, challenges for IPM strategies, tailoring IPM, and planning. Published 2009.

DAFWA. -Identification of pests of canola. Spotted vegetable weevil Pages 7-9. Information on description, lifecycle, damage, and control. Published 2005.

GRDC - Back pocket guide. Spotted vegetable weevil Page 9. Description, crops attacked, damage, and confused with. Published 2013.

PIRSA DAFWA & CESAR - I Spy Manual. Spotted vegetable weevil Section 3, page 20. Pest ID key. Section 4, page 27. Table of Weevil families. Published 2012.