There are many hazards of Solidago canadensis, mainly causing damage to the local ecological balance and posing a threat to biodiversity. As a perennial plant, Solidago canadensis has a very strong competitive advantage: its reproductive ability is very strong, its growth cycle is relatively long, its spread speed is very fast, and it competes with the surrounding plants for nutrients such as sunlight, which leads to the death of the surrounding plants and brings certain harm to the ecological environment.
Control methods of Solidago canadensis
1, directly pull out
This method can also be said to be weeding. Generally, it is necessary to uproot the whole Solidago when the seeds are not mature, and then it is necessary to remove the asexual reproductive organs such as rhizomes remaining in the soil through intertillage. Here, it should be noted that the uprooted plants need to be burned in time.
2. Burning
The burning method is relatively simple, but it is not thorough, because there is no way to completely remove the underground reproductive organs, so it is best to pull out the aboveground parts and tubers, but it must be burned in time, because the spread speed of yellow flowers is very fast.
3, medicine
It is also an economical and effective method to use chemicals for prevention and control, especially during the seedling stage or adult stage, the effect of prevention and control with chemicals will be better.
Solidago canadensis, a plant of Solidago in Compositae, is native to North China and listed in the List of Invasive Alien Species in (the second batch).
Solidago canadensis has a long rhizome, which is erect and 2.5 meters high. Leaves lanceolate or linear lanceolate; The flower head is very small. The inflorescence branches are single-sided, and most curved inflorescence branches and single-sided inflorescences form a spreading panicle; The involucral bracts are linear-lanceolate, and the marginal ligulate flowers are very short.