Radish seed-Cabbage seedpod weevil

Ceutorhynchus assimilis

Pest description and crop damage Small, dark gray snout beetles that congregate on blooms. Larvae feed on seeds inside pods.

Management-chemical control

  • azadirachtin (Aza-Direct, Neemix 4.5)-See label for rates. PHI 0 days. This is a botanical insecticide with ingestion and contact action that kills larvae by interfering with molting; also reduces damage by repelling and deterring feeding. Repeat in 7- to 10- day intervals beginning at the first sign of infestation when pests are immature. Repeated applications break the life cycle of the pest. Some formulations are OMRI-listed for organic use.
  • endosulfan (Thionex 3EC) at 2 lb ai/a. REI 17 days. Do not exceed two applications per season. Do not apply more than 4 lb ai/a per season. Do not apply by air or through any type of irrigation system. This product is highly toxic to bees exposed to direct application or residues on blooming crops or weeds. This product is extremely toxic to fish and aquatic invertebrates. For ground application maintain a 100 ft spray buffer. A 30 ft vegetative buffer strip must be maintained between all areas treated with this product and bodies of water. Rotation crop restrictions in Oregon. No portion of treated plants can be used for food or feed. 24c SLNs: OR-030010 (expires 12/31/16); WA-030027 (expire 12/31/16). Oregon and Washington only.