During the growing period of rapeseed, selective herbicides are difficult to effectively control Veronica in the field. Grass removal is a more suitable herbicide at present, but its control effect on mother-in-law is also not very good. According to the relevant test, weeds are used in the weed 2-3 leaf stage with 50% herbicides per acre 40 ml and per acre with 50% herbicides cream 27 ml plus 108 g/liter flupirtine carbendazim EC 20 ml , 45 days after spraying, the control effect on the strains of Laverna was 60.6% and 41.6%, respectively; the control effect on strains of Laverna was 90.4% and 9.2% after 90 days after application, and the fresh weight control effect was 40.2% respectively. 14.2%. The use of herbicides to remove rapeseed fields is not effective, but it has a strong inhibitory effect on growth of mothers.
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