When 600 gallons of spray containing 3 gallons of Sevin 4F are used to spray 12 acres of tomatoes, what is the dosage rate of Sevin per acre?

To find the dosage rate of Sevin per acre, we need to determine how much Sevin is used per acre based on the total amount applied and the area covered.

In this scenario, 3 gallons of Sevin is mixed with 600 gallons of spray. This means that the total volume of spray is not purely the volume of Sevin but rather the mixture that includes it. The key detail here is understanding how the Sevin is distributed across the 12 acres of tomatoes.

To calculate the dosage rate per acre, we divide the total amount of Sevin used by the number of acres sprayed.

So, we take 3 gallons of Sevin and divide it by 12 acres:

3 gallons ÷ 12 acres = 0.25 gallons per acre.

This can also be expressed as 1/4 gallon per acre. The result signifies the concentration of the pesticide applied on each acre, which is essential for effective pest control while avoiding potential over-application that could harm plants or the environment.

Thus, the dosage rate of Sevin is correctly identified as 1/4 gallon per acre.