Glyphosate is a popular herbicide widely used in agricultural production. However, many people are not very familiar with its role and usage. Let's take a closer look.
The Role and Usage of Glyphosate
Step 1: Understanding Glyphosate
Glyphosate is a systemic, non-selective, non-residual herbicide that is highly effective against perennial weeds. It is commonly used in apple orchards, vineyards, tea gardens, and is widely applied in rubber, mulberry, tea, fruit orchards, and sugarcane fields.
Step 2: Application Rates
Depending on the type of weeds you need to control, the application rates of 10% glyphosate aqueous solution per acre are as follows:
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For annual weeds such as barnyardgrass, foxtail, wild oat, goosegrass, crabgrass, cocklebur, lambsquarters, chickweed, and pigweed: use 400-700 grams.
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For weeds like plantain, horseweed, dayflower, and nutsedge: use 750-1000 grams.
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For tough weeds like cogongrass, reed, purple nutsedge, smartweed, bermudagrass, cinquefoil, and thistle: use 1200-2000 grams.
Step 3: Using Glyphosate Effectively
To ensure the effectiveness of glyphosate, follow these guidelines:
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Timing: Use glyphosate before the flowering stage for best results.
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Temperature: Apply glyphosate when the temperature is around 25°C (77°F). Higher temperatures enhance weed absorption, making the herbicide more effective.
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Directional Spraying: Be careful to spray glyphosate only on the target weeds, avoiding contact with other crops. Glyphosate takes time to degrade, so it's safer to transplant crops about 10 days after clearing.
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Weed Sensitivity: Grass weeds are more sensitive to glyphosate and can be killed with lower doses, while broadleaf weeds require higher concentrations. For perennial root and rhizome weeds, increase the concentration and application rate.
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Mixing Restrictions: Do not mix glyphosate with fast-acting herbicides like 2,4-D. This can cause weeds to die prematurely, reducing glyphosate’s effectiveness in killing underground roots and rhizomes.
Step 4: Special Application Tips
For optimal results, keep these tips in mind:
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If the weed stems and leaves have been cut, wait until there are enough new leaves before applying glyphosate.
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For perennial weeds, split the total herbicide dose into two applications, spaced five days apart, to enhance effectiveness.
Important Considerations
The above information provides a detailed guide on the role and usage of glyphosate. Although glyphosate has a broad range of action against pests, it is essential to follow the guidelines and precautions mentioned to ensure safe and effective use.
