Iowa Certified Handler Practice Test 2025 – The Complete All-in-One Guide for Exam Success!

The primary concern with the use of pesticides in agricultural environments is the development of pest resistance. Over time, the continuous use of certain pesticides can lead to a situation where pests adapt to those chemicals, becoming resistant and thus harder to control. This resistance can create a cycle in which farmers must apply more potent or different pesticides to manage pest populations, often leading to increased use of chemicals and further resistance issues.

Additionally, the problem of pest resistance has broader environmental and economic implications. It can lead to higher production costs for farmers as they must invest in more expensive pest control measures and potentially suffer crop losses due to ineffective pesticide applications. Furthermore, the use of resistant strains of pests can disrupt ecosystem balance, making integrated pest management approaches more challenging.

While other options may pertain to various aspects of agricultural practices, they do not address the immediate and significant impact of pesticide use on pest populations and the resulting challenges in sustainable farming.