The emergence of weeds in the process of planting plants affects the growth of plants and competes for the nutrients needed for plant growth, especially in the pre-emergence stage. It is a long-term pre-emergence herbicide that is safe, reliable, and widely applicable to various garden plants.
Barricade is a high-tech cutting-edge product that is the longest-lasting pre-emergence herbicide on the market and is widely used in the United States for weeding. It has many advantages such as long-lasting effect, wide anti-grass spectrum and good stability.
Recently, the reporter interviewed the technical director of the Syngenta Lawn and Horticulture Department, Wang Hao, on how to properly use the herbicide to pull out the green. He mainly explained the technical problems for everyone.
Wang Wei said that although the scope of application for greening in the country is lawn, the scope of application of greening has been clearly indicated on the US label. It can be used as seedlings, landscapes and ornamental plants for potted plants and plants. Potted bare ground, bulbs and perennial grass plants are suitable for more than 200 kinds of plants, including herbaceous ground cover plants such as Ophiopogon japonicus, maize, and iris, tulip flowers such as tulips and lilies, coffins, rhododendrons, and firethorns. Shrubs, black pine, Podocarpus, hawthorn, juniper and other trees, and even some ferns, involved in a variety of plant types.
In the course of use, according to the China Pesticide Network , green can be sprayed directly on the soil or sprayed from the top of the plant to facilitate weed control in the bushes and seedlings with high planting density. Before spraying, the debris of the soil, such as bricks, fallen leaves, and existing weeds, must be removed to avoid leaving dead spots. After spraying the liquid, there should be at least 1.5 cm of rainfall (or by watering), so that the liquid is in full contact with the soil to form a soil membrane. After spraying the liquid over the top, it should be watered so that the liquid attached to the canopy of the plant can fall into the soil to function; if it is a deciduous plant, the watering should be carried out immediately after application.
Pulling green can choose the appropriate dose according to the length of time you want to close. The recommended dosage is 11g to 26g per 100 square meters. When the application amount is 100g, the green closure period is about 3 months. The closure period is approximately 8 months, depending on the nature of the soil and the temperature and humidity.
Some agricultural and forestry practitioners are worried that "such a strong drug effect will not inhibit garden plants?" Wang Wei explained: "The object of pulling green is soil, which forms a soil film on the surface of the soil. The germination of closed weed seeds is the mechanism of action, so in principle, greening has no adverse effect on most garden plants."
The pesticide network reminds everyone that the greening needs to be used before the weed seeds are germinated, and there is no closed effect on the weeds that have sprouted. For newly transplanted plants, wait until the soil around the plants is stable or tamped before use. Thoroughly pour water before use. If the cuttings are treated, they need to wait until the roots are grown. Soil treatment can be carried out before, after germination, flowering or grafting. However, avoid using the overhead spray operation to avoid damage to the young plant tissue.
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