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St. Johnswort

Klamath weed beetle

Chrysolina quadrigemina/hyperici: These foliage feeding insects have dramatically reduced the St. Johnswort problem in the Northwest and Pacific states. Damage to the foliage by larval feeding lowers root reserves, making it more difficult for the plant to survive harsh winter and/or dry summer conditions.

$100 per release

St. Johnswort inchworm

Aplocera plagiata: Larvae of this moth feed on leaves and flowers. When numerous larvae are present, the plants are defoliated, and flower and seed formation is inhibited.

$125 per release (No discount on this insect)

Catalog and Price List

Integrated Weed Control

4027 Bridger Canyon Road
Bozeman, MT 59715-8433

Contact Information

Toll Free: 1- 888-319-1632
FAX: 1-406-587-1989

Noxious Weeds

Canada Thistle

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Leafy Spurge

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Purple Loosestrife

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Poison Hemlock

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St. Johnswort

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Common Mullein

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