 Alternate Picture(s) |
|
|
|
Purple (or red) deadnettle is a winter annual often confused with henbit (Lamuim amplexicaule). Both weeds have square stems and belong to the mint family. The leaves of purple deadnettle are triangular in shape and less deeply lobed than henbit. The upper leaves of deadnettle are red to purple in color. The leaves of purple deadnettle have petioles with the petioles of the lower leaves being longer than the upper leaves. |
||
The flowers of purple dead nettle are light purple in color. The flowers are arranged in whorls and form in the axis of the upper leaves. Purple deadnettle spreads by seeds.
Purple deadnettle is found throughout the United States and Canada.
| Integrated Pest Management Control Recommendations: |
Cultural Practices:
Purple deadnettle is a winter annual that germinates in the fall or spring.
Like henbit, it does best in thin turf. It is usually found in moist fertile
soils. It can be found in dormant warm season turf and thin fall seeded
cool-season turf. It grows best in the cooler weather of late fall and
early spring. Develop a thick stand of turf by proper cultural and fertility
practices as well as thinning out problems that are caused by shade will
reduce competition from purple deadnettle.
Herbicide Use:
For optimum control, make your postemergent herbicide application to purple
deadnettle that is actively growing and in the seedling to flower stage
of growth.