Maine Right of Way Practice Exam

The statement regarding low pressure herbicide application that is true is that low pressure reduces drift risks. Using a low-pressure system helps create larger droplets of the herbicide mix, which are less susceptible to being carried away by wind. This characteristic significantly minimizes the chances of drift, ensuring that the herbicide remains on the intended target area rather than dispersing into non-target environments.

In contrast, high pressure tends to produce smaller droplets that can easily become airborne. Therefore, utilizing low pressure not only contributes to environmental safety by protecting non-target plants and organisms but also enhances the efficacy of the application by ensuring that more of the herbicide lands where it is intended to be.

The other statements highlight different aspects of herbicide application. High pressure might be seen as beneficial for reaching certain areas but can lead to greater drift. The concept of increased skip areas implies that a low-pressure application would be less effective in consistently distributing the herbicide, which is not the primary advantage of low pressure. Similarly, suggesting that low pressure requires more herbicide is inaccurate; often lower pressures can actually reduce the volume needed due to better target accuracy and less waste through drift.