Chlorantraniliprole is an excellent broad-spectrum insecticide developed in recent years. It effectively controls a variety of pests such as those in the Noctuidae, Pyralidae, Tortricidae, Gelechiidae, and other families. So, how do you mix Chlorantraniliprole with water? Let's take a look.
How to Mix Chlorantraniliprole with Water?
Step 1: Understanding Dilution Methods
1. Percentage Concentration
Percentage concentration indicates the amount of active ingredient in 100 parts of a pesticide or fertilizer solution. For example, a 2% urea solution means 2 kg of urea in 100 kg of solution, with the remaining 98 kg being water.
2. Dilution Ratio
The dilution ratio refers to the amount of water added per unit of pesticide, often expressed by weight. For example, to prepare a 700-fold dilution of 50% carbendazim, you mix 1 part of 50% carbendazim with 700 parts of water.
3. Converting Percentage to ppm
To convert percentage concentration to ppm (parts per million), use the formula:
\[ \text{Water volume to add} = \frac{\text{Pesticide percentage} \times 1,000,000}{\text{Desired ppm}} \]
For instance, to make a 2000 ppm solution from a 40% ethylene product, the water volume is calculated as follows:
\[ 40\% \times 1,000,000 / 2000 = 200 \text{ parts of water} \]
4. Converting to Dilution Ratio
To convert percentage to a dilution ratio, divide the percentage by the ppm value and move the decimal point four places to the right. For example, 40% ethylene at 1000 ppm:
\[ 40 / 1000 = 0.04 \rightarrow 400 \text{ times dilution} \]
5. Mixing Method
When mixing multiple pesticides, do not add water separately for each pesticide. Calculate the total water volume for all pesticides together. For example, to mix 500-fold urea with 1000-fold carbendazim, use 2 parts urea, 1 part carbendazim, and 1000 parts water. When mixing, first make a concentrated mother solution by dissolving the pesticide in a small amount of warm water, then dilute it to the desired concentration to improve efficacy and prevent phytotoxicity.
Step 2: Using Chlorantraniliprole
1. For Rice Pests (e.g., rice stem borers)
Use a 20% chlorantraniliprole suspension at 15-30 g per hectare. Spray during the peak hatching period of eggs or the early instar larvae stage.
2. For Vegetable Pests (e.g., beet armyworm, diamondback moth)
Use a 5% chlorantraniliprole suspension at 30-55 ml per acre. Mix with water and spray evenly over the vegetables.
3. For Fruit Tree Pests (e.g., codling moth, peach twig borer)
Use a 35% chlorantraniliprole water-dispersible granule, diluted 17,500-25,000 times, and spray evenly on the fruit trees.
Step 3: Precautions
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Do not clean pesticide application equipment in rivers or ponds. Avoid using during the flowering period of nectar plants.
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Do not use near silkworm rearing rooms or mulberry orchards.
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Use mist or spray applications for better efficacy.
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When temperatures are high and evaporation is significant, apply pesticides early in the morning or late in the evening to reduce liquid usage and improve crop absorption and penetration, enhancing control effectiveness.
Conclusion
Chlorantraniliprole is a broad-spectrum insecticide with reliable and stable efficacy even at low doses. After application, pests will immediately stop feeding. Following the above methods and precautions will help you effectively mix and use chlorantraniliprole.
