Use Stiffener Herbicide, balsam fern is also called sedge, Stiffener Herbicide is a kind of weed herbicide for sedge.

Classification of herbicides:

1, according to the mode of action classification:

(1) selective herbicides: herbicides for different kinds of seedlings, the degree of resistance is different, this agent can kill weeds, but harmless to seedlings. Such as cover grass can, florine, puff grass net, simazine, Goer herbicides.

(2) inactivating herbicides: herbicides are toxic to all plants, as long as the contact with the green part, regardless of seedlings and weeds, will be victimized or killed. Mainly used before sowing, before seedling emergence after sowing, and on the main and secondary paths of the nursery. Such as glyphosate, etc.

2, according to the movement of herbicides in the plant body classification:

(1) touch-kill herbicides: agents and weeds in contact, only to kill the part of the agent in contact with the agent, to play a localized killing effect, the plant body can not be conducted. Can only kill the above ground part of the weed, the underground part of the weed or perennial deep-rooted weeds with underground stems, the effect is poor. Such as herbicide ether, paraquat and so on.

(2) Endosorption conductive herbicides: the agent is absorbed by the root system or leaves, bud sheaths or stems, and then conducts into the plant, causing the plant to die. Such as glyphosate, pargyline and so on.

(3) Endosorption conduction, touch kill comprehensive herbicides: with endosorption conduction, touch kill double function, such as grass-killing amine.