According to relevant reports, thousands of acres of Solidago canadensis have been found on Huangjiahu Avenue in the summer area of Wuhan, Hubei Province, which grows densely, and the surrounding plants can't grow, and the density exceeds 50 plants per square meter. This growth trend can be said to be predatory growth, which seriously destroys the ecological balance. Moreover, from the current trend, Solidago canadensis has been found in Shandong, Anhui, Hubei, Sichuan, Hunan and other places.
Solidago canadensis is also a typical alien invasive species. It originated in North America. After spreading, it entered Canada and grew in Canada. This kind of plant is a bit like rape flower in southern China, but it is thicker and taller than rape flower. It is a herbaceous wild plant. Its stem is erect and thick, and its diameter can reach two centimeters in the middle and lower part. The flowers are yellow and eye-catching, but so far, it has not been.
1. Why does Solidago canadensis develop so fiercely? Solidago canadensis, if it is on the wetland, you may find only a few branches at first, but if it develops for a month or two, you will see a large area of Solidago canadensis, which is a typical case of its barbaric growth. If it is not controlled, it will grow endlessly. Why is it so vigorous?
Solidago canadensis is a master of reproduction, which can reproduce sexually or asexually. Its seeds mature from1/kloc-0 to the middle of1February. One plant can produce 20,000 seeds, which can grow rapidly after being blown by the wind and spread by cattle and sheep. It can adapt to very poor land and even grow in crevices of stones, and its root system is developed.
The most important thing is that in his roots, a substance that inhibits the growth of other plants will be released, which will lead to the death of other plants. Just like eucalyptus, other plants in the roots of eucalyptus can hardly grow. It's the same reason.
Second, how to control Solidago canadensis? At present, the conventional methods for controlling Solidago canadensis are spraying drugs, manually removing them and burning them, but these methods are not ideal, because such control methods are not very effective in inhibiting the growth of Solidago canadensis, because this is a traditional control method, such as using drugs to inhibit Solidago canadensis. If the drug resistance of Solidago canadensis is strengthened, the drug control effect will not be good at this time, and even these traditional methods will waste us a lot.
Here, it is suggested to use ecological management to warm agriculture, countryside and farmers, that is, to use ecological management. I agree with the experts of East China Normal University that reeds are planted around Solidago, because the growth habits of reeds are similar to Solidago. After planting reeds, the growth of reeds is also very strong, and its plants are vigorous. It can defeat Solidago in advantages, rob Solidago of sunshine, water and nutrients, and let Solidago gradually die.
Seeing this, maybe some netizens will ask me, will this reed flood? Don't worry about this. Reed has grown very early in China for a long time, and there is no trend of flooding. Moreover, reed can be used for papermaking and fiber making, which has certain economic value. However, reed can only be planted in wetlands or near the water, which still has certain defects in controlling Solidago canadensis. What better way do you have to control Solidago canadensis? Welcome to exchange and discuss in the comment area.