After the Spring Festival, farmers begin preparing for the upcoming planting season. One important aspect of this preparation is understanding the pesticide labels, which often include English abbreviations and terms. These symbols and expressions provide crucial information about the product's composition, effectiveness, and safety. Below is a detailed explanation of some common English terms found on pesticide labels.
PC (Percent Concentration) refers to the percentage of the active ingredient in the pesticide formulation. For example, if a product is labeled as 10% PC, it means that 10% of the total weight or volume is the active ingredient responsible for controlling pests.
PPM (Parts Per Million) is another unit used to express very low concentrations. One ppm is equivalent to one part per million parts of the solution. This is commonly used when measuring the concentration of toxic substances or trace elements in water or soil.
EC (Effective Concentration) indicates the concentration at which the pesticide is effective against target pests, diseases, or weeds without harming the crops. It’s an important measure for ensuring both efficacy and crop safety.
LC (Lethal Concentration) refers to the concentration that causes death in test organisms, typically measured in ppm. This is often used in toxicity studies to determine the risk level of a pesticide to non-target species.
MEC (Maximum Effective Concentration) is the highest concentration of a pesticide that still provides effective control of pests without causing damage to the crops. It helps farmers apply the right amount without risking plant injury.
DP (Dust) refers to dry, finely ground pesticide formulations. These are usually used for dusting crops, seed treatment, or as bait. They must be handled carefully to avoid inhalation or contamination.
Understanding these terms can help farmers make informed decisions and use pesticides more safely and effectively. Always read the label carefully and follow the instructions provided by the manufacturer.
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