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Filtering by: Subject Speedwell -- Control

The speedwells : Veronica hederaefolia L., Veronica persica Poir., Veronica filiformis Sm., Veronica peregrina L.

Creator:

Aldrich-Markham, Susan, Oregon State University. Extension Service, Washington State University. Cooperative Extension, University of Idaho. Cooperative Extension System, United States. Department of Agriculture, and Pacific Northwest Cooperative Extension

Abstract:

Four speedwell species are important weeds in the Pacific Northwest: • Ivyleaf speedwell (Veronica hederaefolia L.) • Persian, birdseye, or winter speedwell (Veronica persica Poir.) • Creeping speedwell (Veronica filiformis Sm.) • Purslane speedwell (Veronica peregrina L.)

Resource Type:

Technical Report

Full Text:

control (Figure 6). Purslane speedwell is an annual. The stem is erect, simple or branching from the base