The hedgehog longan is native to the United States. It may be introduced into China by the seeds mixed in the feed. The hedgehog is a seed that breeds offspring. In China, the hedgehog was discovered in Liaoning in 1981 for the first time, and then spread to Jilin, Shanxi, and Hebei. In recent years, it has invaded Beijing, Xinjiang and other places. The hedgehog is very adaptable, drought-tolerant and moisture-resistant. It can grow in dry fields, wastelands, grasslands and pastures, while plants grow more vigorously on wetlands, ditches and river beaches.
The hazards of the hedgehog are mainly high growth rate and strong competitiveness. They compete with local species for water, nutrients, light and growth space, so that other plants cannot grow. Once they invade the pasture, they will reduce the quality of the pasture, harm livestock, affect grazing and humans. Activities have a devastating effect on wool production and quality. At the same time it is the host of the potato beetle, which is the most devastating quarantine pest of crops such as potatoes. The plants of the locusts are poisonous, and the leaves, carpels, berries and roots contain solanine, which is a neurotoxin that, once eaten by animals, can cause poisoning and is toxic enough to kill.
Control method: The most effective way is to completely eradicate the plants when they are young. In recent years, researchers have also tried to form a dense grass by planting economic and ecological crops such as Amorpha fruticosa and seabuckthorn to inhibit the growth and reproduction of Robinia pseudoacacia.
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