Jun 1, 1997 · Johnsongrass (Sorghum halepense) is a troublesome perennial grass weed that reduces yields in corn, grain sorghum, soybean, cotton and leguminous forages. Originally introduced into the United States as a forage crop, it is now an agricultural pest in most states south of the 42nd parallel.

Mar 14, 2024 · As with most invasive weeds and grasses, using multiple strategies usually works best for Johnson grass control. Johnson grass reproduces and invades crop areas in two ways, spreading both by seed and rhizomes to overtake farmland and other areas of your property.

May 31, 2019 · The acetyl-CoA carboxylase (ACCase) inhibitors clethodim and sethoxydim have limited use in grassy roadsides. However, these chemistries may control Johnsongrass in areas where injury to roadside grasses is tolerable, such as fence lines, industrial areas, or in certain roadside ornamental plantings.

Johnson grass invades riverbank communities and disturbed sites, particularly fallow fields and forest edges, where it crowds out native species and slows succession. It quickly dominates the herbaceous flora, reduces plant diversity, and is unsightly to observers.

Control Johnsongrass Outrider: For best johnsongrass control, apply 1.33 ounces per acre when grass is actively growing and is at least 18–24 inches tall, up to the heading stage. Impose (bermudagrass only): Use 4–6 ounces per acre on johnsongrass less than 24 inches.

The easiest and most profitable way to control established Johnsongrass in pastures is to overgraze or continuously mow. Understanding the changes in rhizome reserves is key for management of Johnsongrass.

Sep 19, 2017 · Control johnsongrass and shattercane in fencerows and noncrop areas to reduce sources of weed seeds. Drive equipment around, rather than through, isolated patches of weeds.

Follow this guide and use the recommended products, and we guarantee 100% control of Johnsongrass. Johnsongrass is a warm-season perennial grass weed hated by agricultural …

Johnsongrass (Sorghum halepense) is an extremely competitive perennial grass that commonly reaches heights of 7 to 9 feet and forms thick, dense patches in fields and roadsides. Johnsongrass reproduces by seed and by its scaly, jointed rhizomes. Johnsongrass was introduced into the United States in the 1780s from the Mediterranean region.

Jul 8, 2021 · You can prevent the grass from spreading by plowing immediately after you harvest, till frequently, and use Johnson grass-free seed and feed. You can also use herbicides to kill already growing Johnson grass.