Glyphosate Herbicide
Glyphosate is a broad-spectrum, non-selective, systemic herbicide widely used in agriculture, forestry, and urban weed control. Known for its high effectiveness and reliability, glyphosate plays a critical role in modern weed management strategies across the world. Since its introduction in the 1970s, it has remained one of the most widely applied herbicides globally.
Mode of Action
Glyphosate is a non-selective systemic herbicide absorbed through the foliage and transported to the root system. It inhibits EPSP synthase, an essential enzyme in the shikimate pathway, blocking the synthesis of aromatic amino acids in plants, leading to growth cessation and eventual plant death.
Common Formulations
Glyphosate is available in various formulations to suit different application needs:
SL (Soluble Liquid) – The most common formulation, easy to mix and apply.
SP (Soluble Powder) – Suitable for dry product handling with long shelf life.
SG (Soluble Granules) – Low-dust, easy to measure and dissolve.
AS (Aqueous Solution) – A liquid form stabilized for longer storage.
These formulations are typically applied via sprayers and are often mixed with water and surfactants to improve leaf penetration.
How to Use Glyphosate
Glyphosate should be used when weeds are actively growing. For best results:
Apply during warm, dry weather with minimal wind to avoid drift.
Use a sprayer for even and targeted application.
Do not apply before rain, unless using a rainfast formulation.
Avoid contact with desirable plants, as glyphosate is non-selective.
Follow label rates to avoid overuse and reduce the risk of resistance.
Advantages of Glyphosate
- Broad-spectrum control of grasses, broadleaf weeds, and sedges
- Systemic action ensures thorough kill, including roots
- Versatile applications in various crops and non-crop areas
- Cost-effective with high efficacy at relatively low rates
- Compatible with no-till farming, helping reduce soil erosion and labor
- Low environmental persistence due to rapid soil binding and microbial breakdown



