Which is NOT among the four factors considered in the selection of a pesticide for a mosquito control program in Maryland?

• A. It must be affordable for use.
• B. It must be effective for controlling mosquitoes.
• C. It must minimize the potential for developing insecticide resistance in the mosquito population.
• D. It must be color-coded for easy visual identification.

Answer: (D)

The main idea is choosing a pesticide based on factors that affect how well it works, what it costs, and how to manage resistance. Being color-coded for easy visual identification does not influence a product’s ability to control mosquitoes, its price, or its role in preventing resistance, so it isn’t a factor in the selection process. In Maryland practice, you look at whether the product is effective against the target mosquitoes at the intended application rate and conditions, whether the cost fits the program’s budget, and how its use will impact resistance management (such as rotating chemistries and avoiding overreliance on a single mode of action). Color-coding may help with labeling or identification, but it does not affect performance, safety, or resistance considerations, so it isn’t used to select a pesticide.