Lara seedlings are also called pig seedlings. Many people say that Lala Miao is not to be taunted. They are long and round, covered with thorns. In autumn, it is more overbearing, and the seedlings are as soft as a rope. They are natural enemies in the grass, and no one dares to go near them. If this grass is mixed with wheat, wheat will suffer, and if you want to treat it exclusively, wheat will also suffer. ?
Because of its strong growth ability and rapid reproduction, Lala seedlings can form a huge mass weed in a short time, which develops very rapidly and has strong water absorption and fertilizer absorption ability. As long as there are lots of seedlings, the growth of wheat and fruit trees will usually be seriously affected, because their ability to compete for water and fertilizer resources is often stronger than the demand of crops. Therefore, once farmers find the existence of Lala seedlings in agricultural management, they should weed with drugs or pull weeds manually in time to avoid the loss of crop yield. When pulling seedlings manually, you must do a good job of protection. Pulling seedlings is easy to stab people's skin. ?
How to prevent and control wheat seedling pulling is effective?
At present, there are many ingredients to prevent and control the stubble in wheat fields, such as fomesafen, dimethyl tetrachloromethane, fluroxypyr and tribenuron-methyl. It is worth noting that in the main producing areas of winter wheat in China, the emergence of seedlings has produced resistance to tribenuron-methyl in many places. Fluroxypyr is the safest chemical composition for controlling seedling emergence in wheat field, which is not only highly safe for wheat, but also has a long duration and good effect. Because it is very safe for wheat, a single dose of fluroxypyr is often used as a supplementary herbicide, and many herbicides cannot be used after the jointing stage of wheat.
In addition, dicamba seedling pulling method is recommended, which belongs to low toxicity herbicide. After use, the toxicity can generally disappear quickly after being decomposed by soil microorganisms, so it will not cause residual toxicity harm to wheat growth, soil quality and next crop planting. Generally, after being used in dicamba for one day, the stems, leaves and parts of Larix gmelini seedlings will show obvious decadent bending and abnormal growth changes. Usually, after seven to fifteen days, Larix gmelini seedlings will die very obviously.