Harm and control methods of Solidago canadensis

The harm and control methods of Solidago canadensis are as follows:

The harm is that Solidago canadensis has super reproductive ability, competing with native plants and crops for nutrients and water, which can be described as "nothing grows in the yellow flower" and "flowers bloom and I fall", and it is called "ecological killer". It poses a serious threat to the destruction of local ecological balance and biodiversity, and has now become one of the invasive alien species with great threat.

Control methods include direct uprooting or weeding. Generally, the whole plant of Solidago scandens should be uprooted when the seeds are immature, and then the asexual reproductive organs such as rhizomes remaining in the soil should be removed through intertillage. It should be noted here that uprooted plants need to be burned in time.

Growth habit of Solidago canadensis

Solidago canadensis can grow from hillside woodland to swamp area, which is common in urban and rural wasteland, beside houses, abandoned land, factories, hillsides, river slopes, uncultivated land, roadsides, railways, farmland and green belts. Western countries are not tolerant of shade, and no normal growing communities have been found under tall shade trees.

Drought-resistant and barren soil-resistant, therefore, the hillside wasteland can grow well, even in cement cracks and stone cracks. But in areas with high humidity and water, plants are often short and thin, and their leaves are pale. Solidago canadensis is a perennial rhizome plant, which propagates with seeds and underground rhizomes.

Germination begins in March every year, and vegetative growth occurs from April to September. Plants are usually as high as 65,438+0m in early July, 65,438+065,438+fruits bloom in the middle and late October1and mature from the end of October to the middle of February. A plant can form more than 20,000 seeds, so each plant can form a cluster or a small piece in the next year.