What is the method by which potassium permanganate kills large trees?

If there is a lot of potassium permanganate, sprinkle the roots, and then sprinkle the roots if they are injured. 2.In addition, although not all trees are useful, most trees will die, provided that the quantity and location are well chosen. 3. Watering with salt, high concentration of salt water.

Killing trees using potassium permanganate is best in the year, season.

The best and fastest pesticide to kill large trees is cyclozione.

Cycloazinone is a systemic selective herbicide, white crystalline solid, slightly harmful when mixed with water, do not let undiluted or large quantities of products come into contact with groundwater, waterways or sewage systems, and do not discharge the material into the surrounding environment without permission.

Cyclozinone has low toxicity to humans and animals and is relatively safe to use. It has a strong killing effect on most woody plants. Generally, it can be used for the extermination of yellow poro, eleutherococcus senticosus, pearl plum, basswood, aspen, hazelnut, ash, walnut, elm, tree, willow, acacia tree, stinky tree, persimmon tree, hazelnut, hawthorn tree, apple tree, peach tree, plum tree and other large trees.

When using this herbicide to kill large trees, the topsoil at the root of the tree can be dug up to expose a part of the root system, and then according to each tree with a DBH of 10cm, a dose of 8-10 ml of 25% water solvent is injected into the root of the tree with a syringe for spot shooting. Under normal circumstances, the tree will slowly die after half a month.

Uses of Cyclozinone:

1. Use of land preparation before afforestation: The Northeast forest area should use medicine from mid-June to mid-July, and spray each tree planting point with a spray gun. Shrub dense woodland with 3 ml point, can be diluted 1-2 times with water, can also be used with the preparation of direct spot. After 20-45 days, no grass holes are formed.

2. Tending and use of young forests: use medicine in mid-to-late June or early July, with an average of milliliters per tree, diluted with water and sprayed 4-6 times.

3. Eliminate non-target tree species: spot shot around the roots, each 10cm DBH tree, spot 8-10 ml of 25% water solvent.

4. Maintain forest fire prevention roads: use 6L of 25% water solvent per hectare and spray 150-300 kg of water. Individual residual shrubs and weeds can be shot again to make up the dosage.

Cycloazinone is a triazine selective herbicide, which has contact killing effect and systemic conductivity, it can be directly absorbed by stems and leaves, and directly interfere with the photosynthesis of leaves, so that metabolic disorders lead to plant death; It can also be absorbed by the root system of plants, and transported to stems and leaves through xylem, interfering with the photosynthesis of plants, causing metabolic disorders and leading to plant death. It is harmless to the roots of crops such as pine and sugar cane. Therefore, it is mainly used for the tending of evergreen coniferous forests, such as Korean pine, Pinus sylvestris, spruce, Masson pine and other young forests.

Why kill with medicine, quicklime, ring peeling, boiling water for a week can be used to blanch the bark.