Common Weeds of No-Till Cropping Systems, Purdue University

Common Weeds
of
No-Till Cropping Systems

Department of Botany and Plant Pathology
Purdue University
West Lafayette, IN 47907

This web page address is:
http://www.btny.purdue.edu/weedscience/notillid/

Weed Index:

The switch from conventional tillage to no-tillage cropping systems generally creates a shift in weed species. Over time, small-seeded annual broadleaf weeds and perennial weeds become more prevalent in no-tillage fields. While most annual weeds may be easier to manage with herbicides, many of these perennial weeds present a unique challenge. This web page displays color images of common weeds found in reduced and no-tillage cropping systems. Each weed has a description, a mature image (left), an immature image (center), a unique feature image (right), and may contain links to control options in the publication, CT-2 Weed Control in No-Tillage Systems, which is also available as a PDF document.

Click on an image to view a larger more detailed image of the weed


Common Name: Scientific Name: Life Cycle: Control:	Canada Thistle Cirsium arvense Perennial Info, CT-2
Flower	Creeping perennial typically growing in a patch	Underground vertical stems and horizontal creeping roots
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Common Name: Scientific Name: Life Cycle: Control:	Common Chickweed Stellaria media Winter annual Burndown prior to planting with glyphosate or Gramoxone Extra
Flower	Seedling	Opposite leaves
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Common Name: Scientific Name: Life Cycle: Control:	Cressleaf Groundsel (Ragwort) Packera glabellus Winter annual CT-2
Flower with ray petals surrounding a yellow center	Young plant forms a rosette of basal leaves	Stems are hollow
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Common Name: Scientific Name: Life Cycle: Control:	Dandelion Taraxacum officinale Perennial CT-2
Flower	Seedling	Taproot
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Common Name: Scientific Name: Life Cycle: Control:	Hedge Bindweed Convolvulus sepium Perennial CT-2
Flower	Leaves alternate on the stem	Creeping perennial with rootstocks
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Common Name: Scientific Name: Life Cycle: Control:	Hemp Dogbane Apocynum cannabinum Perennial CT-2
Flower	Creeping perennial typically growing in a patch	Leaves are opposite on the stem
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Common Name: Scientific Name: Life Cycle: Control:	Henbit Lamium amplexicaule Annual Burndown prior to planting with Roundup Ultra, Touchdown or Gramoxone Extra
Flower	A winter annual flowering in the spring	Leaves opposite on the stem
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Common Name: Scientific Name: Life Cycle: Control:	Honeyvine Milkweed Ampelamus albidus Perennial CT-2
No picture	An up-right stem that later falls over and becomes a vine	Opposite leaf arrangement
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Common Name: Scientific Name: Life Cycle: Control:	Horseweed (Marestail) Conyza canadensis Annual CT-2
Flower	Winter or early summer annual	Taproot
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Common Name: Scientific Name: Life Cycle: Control:	Johnsongrass Sorghum halepense Perennial CT-2
Seedhead	Membranous ligule	Creeping perennial with large rhizomes
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Common Name: Scientific Name: Life Cycle: Control:	Pokeweed Phytolacca americana Perennial CT-2
Flowers produce clusters of berries	Seedling	Taproot
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Common Name: Scientific Name: Life Cycle: Control:	Quackgrass Agropyron repens Perennial CT-2
Seedhead	Auricles present	Rhizomes
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Common Name: Scientific Name: Life Cycle: Control:	Trumpetcreeper Campsis radicans Perennial CT-2
Flower	Creeping woody perennial with compound leaves	Compound Leaf
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Common Name: Scientific Name: Life Cycle: Control:	Wild Mustard Brassica kaber Annual or winter annual CT-2
Wild mustard flower has four petals	Seedling	Flowers produce seed pods
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Common Name: Scientific Name: Life Cycle: Control:	Wirestem Muhly Muhlenbergia frondosa Perennial CT-2
Creeping perennial grass	Membranous ligule	Creeping perennial with scaly rhizomes
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Send comments to: Glenn Nice or Bill Johnson
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