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- Barnyardgrass is introduced into turf stands primarily through transfer of seed on maintenance equipment, shoes, and soil used for renovation projects. Although there is no practical way to detect seeds in soil, using soils from sites with no previous history of barnyardgrass infestation can lessen the chances of contamination of turfgrass sites.
extension.psu.edu › lawn-and-turfgrass-weeds-barnyardgrass-echinochloa-crus-galli-l-beauvLawn and Turfgrass Weeds: Barnyardgrass [Echinochloa crus ...
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Soil physical requirements: Barnyardgrass does best on soils that hold water, but can tolerate soil textures as coarse as loamy sands. The species is highly tolerant of water logged and flooded soils, and is one of the worst weeds of rice paddies (Maun and Barrett 1968, Holm et al. 1977).
- Identification of Barnyardgrass
- Management of Barnyardgrass
- Ecology of Barnyardgrass
- Summary Table of Barnyardgrass Characteristics
- Further Reading
Family: Grass family, Poacea Habit: tall, upright, summer annual grass Genus variability: The genus Echinochloa is composed of many distinct species and ecotypes that are difficult to classify. Two distinct clusters of weedy Echinochloa can be distinguished by molecular and structural markers, namely barnyardgrass (E. crus-galli) and late watergras...
Since the seeds are only moderately persistent, rotation with perennial forage crops can help reduce density of barnyardgrass. Because barnyardgrass germinates in warm soil, winter grains or grain crops planted in early spring will be highly competitive by the time the weed emerges. Also, shade by the crop will cool the soil and reduce further germ...
Origin and distribution: Barnyardgrass is native to South Asia and Europe. It ranges around the world from 50° N to 40° S latitude, except for tropical Africa. It occurs across southern Canada and in all states except Alaska. Seed weight: Mean seed weight of 10 populations varied from 1.7–2.1 mg, with most near the lower end of the range. Dormancy ...
Table Key
General: The designation “–” signifies that data is not available or the category is not applicable. Growth habit: A two-word description; the first word indicates relative height (tall, medium, short, prostrate) and second word indicates degree of branching (erect, branching, vining). Seed weight: Range of reported values in units of “mg per seed.” Seed dormancy at shedding: “Yes” if most seeds are dormant when shed, “Variable” if dormancy is highly variable, “No” if most seeds are not dorma...
Holm, L.G., D.L. Plucknett, J.V. Pancho and J.P. Herberger. 1977. The World's Worst Weeds: Distribution and Biology. The University Press of Hawaii: Honolulu. Maun, M.A. and S.C.H. Barrett. 1986. The biology of Canadian weeds. 77. Echinochloa crus-galli (L.) Beauv. Canadian Journal of Plant Science66: 739–759. Norris, R.F. 1992. Case history for we...
Jan 30, 2024 · Cultural control of barnyardgrass in row crop systems can be achieved by improving field drainage which can help enhance row crop establishment leading to an earlier canopy for shading. In soybean, narrow rows can help reduce weed seed germination by developing a quicker canopy compared to wider rows.
Mar 5, 2022 · The current results show that soil steaming can guarantee very good control of barnyardgrass seeds in infested soil masses. Complete seed kill was achieved by steaming soil at 94 C regardless of exposure duration (in the range 29 to 183 s).
Seeds can germinate over a wide range of soil temperatures, with optimum temperatures ranging from 68 to 87 F. Following germination and emergence, barnyardgrass plants make vegetative growth during late spring and summer.
Barnyardgrass is a summer annual, meaning it completes its lifecycle in one year. The seeds can remain viable in the soil for up to 13 years so barnyardgrass can be a persistent weed. Germination: Barnyardgrass seeds germinate in the spring, when soil temperatures reach 55-65 degrees Fahrenheit.
