In recent years, with farming operations, the occurrence of grassy weeds in wheat fields such as Brome, Fructus axillaris, etc. has increased year by year in our county. The degree of occurrence has increased year by year, and the occurrence density has increased year by year. With the popularization and promotion of the weed autumn technology, wheat grass weeds have been controlled to a certain extent. In response to the occurrence of weeds in wheat fields in our county this year, we propose the following prevention and control technologies:
First, the selection and prevention period: pre-winter wheat 3-5 leaf stage, weed 2-4 leaf stage (generally mastered in mid-November).
Second, choose the right medicine:
1. The main plot of bromegrass is: 70% tigris (falconazosulfuron) water dispersible granules (3 grams per mu) for water spray control.
2. Blocks dominated by Aegilops tauschii: Use 3% SEMA (methylsulfuron) oil suspension 30 ml per acre for water spray control.
3. Mixture plots of grass weeds and broad-leaved weeds: 3.6% per acre (methyl iodosulfuron sodium methylsulfuron) water dispersible granules 20 g or 7.5% preferentially Oxalamide) 10 g water dispersible granules for water spray control. Or choose 70% of muscat water dispersible granules (falazosulfuron-methyl) 3g or 3% sema (methyl sulfosulfuron) EC 30ml plus 20% tribenuronic-methyl WP 5g or 13% Methionine water agent 350 for water spray control.
Third, note:
1. When using the method of secondary dilution, first mix the mother liquid with a small container, then pour into the sprayer and add enough water to mix well.
2, to ensure the quality of spraying. The amount of liquid medicine per acre shall not be less than 30kg, and the spray shall be uniform, without heavy spraying or leaking.
3, spraying should be carried out in sunny and windless weather, the temperature is lower than 8 °C, reducing the effectiveness of control.
Jiangsu Tiera Biotechnology Co., Ltd , https://www.tierabio.com