Which of the following is a recommended method to minimize adverse effects on beneficials when using pesticides?

Choosing to monitor pest pressure levels is a recommended method to minimize adverse effects on beneficial organisms when using pesticides. This practice involves regularly assessing the population of pests in the environment to determine whether a pesticide application is necessary. By accurately gauging pest levels, you can time applications more effectively, ensuring they are targeted and limited to instances where they are absolutely needed. This not only conserves beneficial insects but also helps in reducing the overall chemical load in the ecosystem.

In contrast, selecting a non-selective insecticide would likely harm beneficial insects as these products affect a broad range of species rather than targeting specific pests. The timing of pesticide applications is critical; applying products at any time of day can lead to more harm, especially during periods when beneficial insects are active, such as flowering times when pollinators are present. Finally, increasing the dosage of pesticides can exacerbate damage to non-target organisms, further disrupting the ecological balance and potentially leading to pest resistance.