For Ornitrol, how many days and how often per year are the applications recommended?

• A. 5 days once per year
• B. 10 days twice per year
• C. 15 days quarterly
• D. 20 days monthly

Answer: (B)

The key idea is to follow the product label for how long and how often to apply pesticides. For Ornitrol, the label specifies a total of 20 days of application per year, delivered as two separate 10-day applications. This split schedule helps maintain the repellent effect during important bird activity periods while keeping use within permitted limits. It also reduces the risk of diminished effectiveness or environmental impact that can come from over- or under-application. Other schedules would either exceed what the label allows or not provide enough exposure to maintain deterrence.