Dry Edible Beans: Green Cloverworm (Hypena scabra)

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Pub 812: Field Crop Protection Guide > Chapter 5: Dry Edible Beans > Green Cloverworm

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Field Crop Protection Guide 2011-2012, Order 2011-2012 publication

Table of Contents

1. Description
2. Integrated Pest Management Options
• endosulfan – Thiodan 4 EC
3. Related links...

 

Description

The adults are dark brown or black moths with spotted wings. Their wingspan is approximately 2.5 cm (1 in.) The larvae are pale green, approximately 2.5 cm (1 in.) in length and have two white longitudinal stripes running along the length of the back. The larvae will pulsate when disturbed. Green cloverworm attack alfalfa, bean, clover, cowpea, soybean, strawberry, vetch, many common weeds and other legumes.

Image 1. Green cloverworm larvae are pale green and have two white, longitudinal stripes running along the length of the back.

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Integrated Pest Management Options

Several natural enemies help keep green cloverworm populations below action thresholds. Insecticides are only recommended if populations are extremely high, as they will also kill the natural enemy population.

Active ingredient	endosulfan
Trade name	Thiodan 4 EC
Rate per hectare (product)	1.5-2.5 L per ha
Rate per acre (product)	0.6-1.0 L per ac
PHI*	2
Comments	Do not feed treated threshings or crop refuse to livestock. Do not apply on lima beans.

 

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Related links...

• Agronomy Guide for Field Crops - Publication 811
• Insects
• Dry Edible Beans