There are several types of herbicides used for mulberry cultivation, which not only enhance effectiveness but also help reduce costs. According to the Chinese Pesticide Network, here's a detailed overview of some commonly used herbicides:
1. **Thatched Grass** – This herbicide is effective against dog bud root and white stalk. It should be applied at a rate of 0.75–1.0 kg per 667 square meters, mixed with 125 kg of water for soil treatment or foliar spraying. The control effect can reach 80%–90%, and the efficacy lasts about 30 days.
2. **Stable to Kill (Flufenazone)** – Also known as fluorosis, this herbicide is ideal for controlling weeds in the early growth stage of mulberry seedlings. It is best applied when weeds have 3–6 leaves or when dealing with perennial grasses. Use 50 ml of 35% (or 15%) emulsion per 667 square meters, diluted with 15–30 kg of water for spraying.
3. **Bai Zhu (Herba Pogostemonis)** – This herbicide effectively controls various annual and perennial weeds, including fragrant aconite, axillary bud roots, pig mites, water peanuts, and tendon grass. Apply 1 kg of 15% glyphosate per 667 square meters, mixed with 125 kg of water and 0.15–0.20 kg of washing powder, and spray directly on the stems and leaves.
4. **Enemy Grass** – This herbicide is particularly effective against dicotyledonous and grassy weeds, as well as perennial weeds. Use 0.5 kg of 25% wettable powder per 667 square meters, mixed with 100–150 kg of water for directed soil application. It has a control rate of 79%–95%, with effects lasting over 45 days and no significant adverse impact on silkworms.
5. **Annihilation (Chlorpyrifos)** – Ideal for pre-emergence weed control, apply 0.25–0.5 kg of 25% chlorpyrifos per 667 square meters, mixed with 100 kg of water and sprayed onto the soil. It shows more than 90% effectiveness against double-leaf weeds like flat storage, piglet, mother-in-law, small convolvulus, and ash, with an effect lasting over 60 days and no harm to mulberry plants or silkworms.
6. **Dimethyltetrachloride** – This herbicide is effective against small convolvulus, thorn buds, flat storage, ash, and fragrant aconite. Use 0.5–0.75 kg of 20% pesticide per 667 square meters, mixed with 100 kg of water, and spray on the stems and leaves. It achieves an 80%–90% kill rate and remains effective for 30–45 days.
7. **Fluorin** – Suitable for mulberry fields dominated by grassy weeds. Apply 100–150 ml of 48% emulsifiable concentrate one day before sowing, mixed with 50–60 kg of water, and spray on the topsoil. Afterward, mix the soil to a depth of 3–5 cm. The effect lasts around 60 days.
**Tip from the Pesticide Network**: After applying any of these herbicides, it is recommended to wait at least 15 days before raising silkworms on the mulberry leaves to ensure safety. Always follow the manufacturer’s instructions and local regulations for optimal results and environmental protection.
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