Virginia Commercial Pesticide Applicators CORE Exam

What is a significant disadvantage of ready-to-use (RTU) formulations?

1. Low drift hazard

2. High cost per unit of active ingredient

3. Easy to store and handle

4. Requires no agitation

The correct answer is: High cost per unit of active ingredient

The significant disadvantage of ready-to-use (RTU) formulations is indeed the high cost per unit of active ingredient. RTU products are pre-mixed and typically sold in smaller quantities, which can result in a higher price compared to concentrated formulations where the user is required to mix their own solutions. This higher cost can be particularly impactful for commercial applicators who use large volumes of pesticides in their work, making it less economical compared to purchasing concentrated products and diluting them as needed. The other choices imply advantages rather than disadvantages. For instance, low drift hazard and ease of storage and handling indicate that RTU formulations may be easier to use in certain situations. Similarly, the fact that they require no agitation reflects their convenience, making them an attractive option despite the cost consideration. Understanding this trade-off is crucial for making informed decisions about which pesticide formulations to use based on economic factors and application scenarios.