Setaria viridis generally grows in the wilderness or on both sides of roads below 4000 meters above sea level, and is commonly found in loose and fertile sandy loam rich in humus. Their origin is in temperate and warm temperate regions of Eurasia, and they like warm and humid climate. Setaria viridis usually begins to germinate from mid-April to May every year, and its growth peak is in mid-May.

Where does Setaria grow? Setaria generally grows in the wilderness or on both sides of roads below 4000 meters above sea level. It belongs to common weeds in dry land, likes warm and humid climate, and is more common in loose and fertile sandy loam rich in humus. Its origin is temperate and warm temperate regions of Eurasia.

The growth law of Setaria viridis is an annual weed in late spring, which mainly depends on seeds to reproduce. Generally, germination begins from mid-April to May every year. The optimum temperature for germination is 15-30℃, the peak growth period is in mid-May, and the fruiting period is from August to June. The media that spread seeds are wind, running water and animals.

What is the harm of green bristlegrass growing in farmland? Setaria viridis will compete with crops for nutrients, light energy and water. Their dense and developed roots will occupy a lot of growth space of crops, interfere with and inhibit crop growth, and lead to crop yield reduction. Setaria viridis also contains toxic alkali, which can cause poisoning after poultry eat it by mistake.

Prevention and control methods of Setaria viridis When planting crops, reasonable crop rotation should be adopted to change the growth environment of Setaria viridis, and the harm of Setaria viridis should be suppressed and alleviated. After sowing, you can cover the seeds with plastic film and burn their seedlings at high temperature. When Setaria viridis is propagated in large quantities, herbicides such as prometryne and diuron should be sprayed to the field in time.