Is it harmful to pollinators? Frogs? And how often do I need to reapply? Thank you.

Thank you for your interest in Ortho Bugclear Insect Killer for Lawns. When used according to the label directions, our products pose no unreasonable health risks to wildlife or the environment. However, we recommend that you do not use this or any other insecticide to a known food or water source for wildlife. Please contact us at http://tinyurl.com/npw4xxd with any other inquiries that you may have, and we will be happy to assist you.