ICAN senior consultant Mark Congreve said when looking at the effect of temperature alone, glasshouse testing has shown higher rates of glyphosate were needed to control barnyard grass
under 35/30oC day/night temperatures compared to the same population grown under a 25/20oC temperature regime.
Ten seeds of cress, lettuce, alfalfa, rapeseed and ten pre-germinated seeds of Italian ryegrass, barnyard grass
, timothy, sand fescue (germinated in the darkness at 25oC for 88, 75, 90 and 48 h, respectively, after overnight soaking in distilled water in each case) were placed on the filter paper (No.
Examples of grassy weeds in Pakistan include crabgrass, barnyard grass
, hooraghass, green foxtail, annual bluegrass, tall fescue and quackgrass.
Seeds of grain amaranth, barnyard grass
, veronica, red clover, common lambsquarters, common knotgrass, plantain and annual bluegrass were collected in the wild from June to October 2011.
The phytotoxic activity of aqueous leaf extracts of the donor species was tested on diaspores of three weeds: barnyard grass
(Echinochloa crus-galli (L.
Of the main annual grass weeds present in New Zealand maize crops , nicosulfuron provided good control of smooth witchgrass (Panicum dichotomiflorum) and barnyard grass
(Echinochloa crus-galli) and suppression of most other annual and perennial grasses as well as many broadleaf weeds [12,4].
Inhibition of the Seedling Growth of Barnyard grass
In the constructed wetland, during Fall 2001, frogfruit, Johnson grass, and barnyard grass
were found to be the most important species present (Table 1).
The 1-ton and 2-ton rates worked best in peppermint, reducing barnyard grass
, green foxtail, common lambsquarters, henbit, and redroot pigweed populations by 90 percent several weeks after application.
Of the three, the one-ton and two-ton rates worked best in peppermint, reducing barnyard grass
, green foxtail, common lambsquarters, henbit and redroot pigweed populations by 90 percent several weeks after application.
Glyphosate resistance had already been confirmed in populations of awnless barnyard grass
in NSW in 2007 and annual ryegrass in Victoria in 1996.
A few rice varieties, however, have shown unusual success at poisoning some of their most pesky competitors, such as a weed called barnyard grass