# How to Calculate Spray Rates?

Multiply the length of the area you plan to spray times the width. If you are using metres, then divide the product by 10,000, which is the number of m2 in a hectare (ha). For feet and acres, divide by 43,560 which is the number of ft2 in an acre (ac):

## How to Calculate Spray Rates?

Calculating spray rates is an important part of any crop management plan. As a grower, you must know how much of a given pesticide or fertilizer to apply to a given area. Knowing the correct spray rate for a pesticide or fertilizer will help you maximize crop yield and minimize losses due to pests or nutrient deficiencies.

Spray rates are typically measured in gallons per acre (GPA). To calculate spray rates, you will need to know the size of the area to be treated, the type of application, and the amount of product to be used.

The first step in calculating spray rates is to determine the size of the area to be treated. This can be done by measuring the length and width of the area and then multiplying these two figures together to get the total area. For example, if the area to be treated is 20 feet by 10 feet, the total area is 200 square feet.

The next step is to determine the type of application being used. This will affect the amount of product needed and the rate of application. For example, broadcast spraying is a type of application where a pesticide or fertilizer is sprayed over an entire area, while spot spraying is more targeted, where the product is only applied to certain plants or areas. Once