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Forages: European Skipper (Thymelicus lineola)

Author: OMAFRA Staff
Creation Date: 04 July 2005
Last Reviewed: 28 July 2007
Pub 812: Field Crop Protection Guide > Chapter 4 : Forages > European Skipper

Excerpt from Chapter 4, Field Crop Protection Guide, Order this publication

Table of Contents

  1. Description
  2. Integrated Pest Management Options
  3. Related links...

Description

The skipper is a sporadic pest of timothy, both in hay and seed production. The adult is a pumpkin-orange butterfly with a 2.5-cm wing spread that skips about hay fields in midsummer. Mature larvae are light green, approximately 2.5 cm in length and have brown heads with two light bands. Younger larvae have black heads that eventually turn brown. Larvae can usually be found within rolled leaves where they feed.

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Integrated Pest Management Options

If 6-8 caterpillars in a 30-cm x 30-cm area are found as early as the brown-headed stage, treat the field or the infested area. See OMAFRA Publication 811, Agronomy Guide for Field Crops, for scouting procedures.

Bacillus thuringiensis (Bt) – Dipel 2X DF, Thuricide HPC
  Dipel 2X DF Thuricide HPC
Active ingredient Bacillus thuringiensis (Bt) Bacillus thuringiensis (Bt)
Trade name Dipel 2X DF Thuricide HPC
Rate per hectare (product) 140-275 g per ha 2.25 L per ha
Rate per acre (product) 60-115 g per ac 900 mL per ac

Comments
Timothy only. 0 days to cutting or grazing

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Related links...

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