Aphid Advisor is a decision-making tool to help determine whether an action is warranted for control of soybean aphids (Aphis glycines) on soybeans.

This app uses both aphid and natural enemy numbers, as well as expected population growth rates, to indicate whether there are enough natural enemies to keep aphid populations in check or if an insecticide application may be needed.

The accuracy of output generated by this app depends on the accuracy of the data submitted by users. Aphid Advisor takes no responsibility for the accuracy of these results. There are other tools and sources of information to consider before deciding what pest management action to take.

Aphid Advisor was developed by Rebecca Hallett (UofG), Christie Bahlai (UofG; current institution Kent State University) and Tracey Baute (OMAFRA). Funding for development of this app has been provided by the Agri-Food and Rural Link, a component of the OMAFRA – U of G Partnership and the Growing Forward 2, a federal, provincial and territorial initiative.

This app is based on the scientific literature and on research conducted at the School of Environmental Sciences and Department of Plant Agriculture, University of Guelph, Agriculture & Agri-Food Canada’s Pesticide Risk Reduction Program, the Grain Farmers of Ontario, and the OMAFRA-University of Guelph Sustainable Production Program.

Photos used by arrangement: ©T. Baute, OMAFRA: Aphid-infested leaves, ladybeetle adult, lady beetle larva, syrphid larva; ©D. Cheung: Aphelinus mummy close up, Orius adult, Orius nymph, lacewing adult, lacewing larva, Aphidoletes larva; ©Y. Xue: Aphelinus mummies. Used with permission from Iowa State University Extension and Outreach from the publication Soybean Growth and Development, PM 1945. Original publication date: 2004.