In this place of Shandong, the symbols of "man and woman" are painted on poplars! Is this practice worth advocating?

It is understood that in Dezhou, in addition to Fraxinus mandshurica, Sophora japonica, Fraxinus fatua and other tree species, one-fifth of the greening tree species choose poplar, and the main varieties are Populus tomentosa, Populus cathayensis, Populus simonii and Populus Xinjiang. Every April and May, catkins in the north are at the peak of flying, and many northern cities, including Texas, are troubled by catkins. Catkin flying everywhere not only affects the environment, brings fire hazards, but also causes allergies in some people, which has adverse effects on citizens' travel and health. ? Labeling symbols are used to control poplar floc, female poplar and non-female poplar. ? Liu Aixing, senior engineer of Dezhou Landscaping Service Center, told the reporter.

In fact, our focus should not be on giving this Shuoyang Huashan gender symbol, but on emphasizing gender, but on being kind to your catkins. What we know is that the female flows out, and he won't have catkins flying. This will happen, but if the male flows out, he will blossom in spring, especially after the spring in China, and his distortion will fly everywhere, which will have a certain impact on our human health. So for these reasons, everyone went to draw a gender symbol on this willow tree, and then injected this medicine into the male willow tree that was flying catkins to inhibit its Liu Xufei.

Everyone knows that the air quality in the north, especially in Beijing, is very poor because of the influence of smog, and recently I heard that Beijing has the influence of sandstorms, and the air quality is even worse. If willows are flying catkins at this time, it will have a certain impact on pedestrians' walking and their respiratory health, and if this Liu Xufei rises, it will fly everywhere. It's hard to protect menstruation's job. So in order to consider from many aspects, we decided to distinguish between men and women on this willow tree, and then inject medicine into a willow tree with catkins. I think this practice is worth learning from.