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Reporting Pesticide Usage

Saturday October 13, 2012

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Mr Pest Control

Question:

When using a concentrate pesticide and I want to convert pounds of product used into the total of active ingredient pounds, what is the formula I should use?

David, AZ

Mr Pest Control

Answer:

The percentage of the active ingredient that you see on any pesticide label represents the percentage BY WEIGHT of that active ingredient in that formulation. So, for dry concentrates it's pretty easy to figure this out. If we pick a few examples of products we can first pick Tempo Ultra WP, which is 10% active ingredient by weight in the package. This means that in a 14.8 ounce jar of the product there will be 1.48 ounces of active ingredient - just divide the total weight by 10. Now, we do get confusion when we try to mix Metric with our normal standards of ounces and pounds, as so many product labels now use metric. The Tempo label is no exception, as it allows you to use either 10 grams or 20 grams of the concentrate powd... Read more

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Please note, Mr. Pest Control is answering questions supplied by PMP customers across North America. His answers are generated from industry and manufacturer-provided information. The answer may not be specific to the laws and regulations for your State, Province, Territory or Country. In addition, products mentioned may not be registered and or available in all areas. Always check with your local Univar office for specific information to your area. Always read and follow label directions.

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