Give pests a chance

On this Horticulture Day episode of Talk of Iowa, host Charity Nebbe welcomes entomologist Zach Shum from the Plant and Insect Diagnostic Clinic at Iowa State University to challenge common fears about insects and promote a more nuanced understanding of their role in ecosystems. Shum emphasizes that the vast majority of insects are not harmful to humans or gardens, and urges listeners to approach unfamiliar insects with curiosity rather than panic. He discusses the importance of accurate identification—cautioning against relying solely on mobile apps for small insects—and advocates for non-chemical, environmentally friendly pest management strategies like hand removal, water sprays, and pruning. The conversation also touches on the complex reality of non-native species like the Chinese praying mantis, which can be both beneficial and potentially disruptive, and the need for tolerance in gardening. Additional insights are provided by horticulture specialists Aaron and Erin Stile on topics ranging from pollinator-friendly plants and plant care to managing specific pests like budworms and black knot disease. The episode concludes with reassurance that threats like Africanized honeybees and murder hornets are not imminent concerns in Iowa.