Cereals: Cereal Leaf Beetle (Oulema melanopus)
Pub 812: Field Crop Protection Guide > Chapter 4: Cereals > Cereal Leaf Beetle
Field Crop Protection Guide 2011-2012, Order 2011-2012 publication
Table of Contents
The cereal leaf beetle (CLB) adult is a metallic, blue-green beetle, approximately 0.5 cm in length, with a reddish-orange head and legs. The larvae are 0.6 cm in length when mature and yellowish in colour, but this colour is obscured by a black deposit of fecal material making it slug-like in appearance.
Cereal leaf beetle larvae are yellowish, but this colour is obscured by a black deposit of fecal material making it slug-like in appearance.
Natural enemies are highly effective at controlling this pest. For the safety of these natural enemies, chemical control is not recommended unless pest population exceeds the action threshold of 1 larvae/stem. See OMAFRA Publication 811, Agronomy Guide for Field Crops, for more information.
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