Flixweed Eradication Case Study

Alfalfa harvesting in each reaping will also cause flixweed eradication and it can be very effective on reduction in flixweed density. If alternation and repetition of eradicating go along with actions such as herbicides application, can increase the effectiveness of weed control. Ghorbani et al. in (2009) reliedon the issue also stated that harvesting and eradicating accompanied with using chemical pesticides will increase the ability of weed control. The two weed types, bitter and normal flixweed, reduced obviously in the third harvest compared to the first and second harvest but still a number of these weeds existed in the farm, conformity of the results obtained from the third harvest with the two previous ones revealed the favorable effect
In study of these two weeds density from the first harvest to the fourth one, it is observed that in the fourth harvest, the weed existence problem has been roughly resolved so that even in blank treatment (no weeding) there was a little density of the two weeds. One of the reasons affecting density reduction in the two weeds can be stated relating to eradication of these two weeds as a result of each harvest and also passing the weeds’ growth season in addition to experimental treatments’ application. Pursuit treatment accompanying with cytogate in the fourth harvest are introduced as the best option to control sorrel and dandelion weeds, also consumption of Basagran with declined dose accompanying with cytogate surfactant could transcend the other plan treatments to control Salsify weed in the fourth harvest. The obtained results from variance analysis related to dry weight of weed showed that all applied experimental treatments were statistically significant in the level of 1% in all four harvests (Table
Also Pursuit with reduced dose along with cytogate could cause the lowest dry weight of normal flixweed in the first harvest. Investigating the dry weight of sorrel in the first harvest, Pursuit and Basagran treatments both with reduced dose along with cytogate and also the incorporated treatment of pursuit and Basagran all in a same statistical group, were the best treatments for reducing the dry weight of this weed. Pursuit treatment with reduced dose along with cytogate and incorporated treatment of pursuit and Basagran in the fourth harvest were in a same statistical group containing the lowest dry weight of Salsify. Pursuit treatment with reduced dose associated with cytogate consumption was the best option to reduce dry weight of dandelion in the first harvest. Giti in 2013 and Giti et al. in 2013 have also recommended the above treatments for reducing the weed dry