Lythrum salicaria L. Loosestrife Family
| Key identifying traits
Control
Prevention – Learn to identify plants; beware of ornamental varieties & contaminated boats/motors
Biological – Some very effective agents available and established in our county; substantial impact on plant vigor and reproduction (Galerucella & Hylobius)
Cultural – Competitive vegetation helps although plants can invade healthy native as well as managed introduced plant habitats
Mechanical – Small infestations can be dug, bagged and disposed of taking care not to disperse seeds
Chemical – Non-selective or broad leaf herbicides can be effectively used depending on site; if plants are in bloom, clip/bag flowers prior to spray; special care, permit and license required for aquatic applications |
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browning plants due to biocontrol damage
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cutting flowering heads to bag prior to spray
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Where found – Infestations at Waitts Lake, Loon Lake and Lake Spokane; a few other minor infestations have been located in pastures and along ditches elsewhere in Stevens County.
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