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Pests & Predators Podcast, Ep 16: Parasitoids prey on pests in pulses

Usually a pest of canola, but sometimes a pest of faba bean and other pulses, the bertha armyworm is a significant eater of crop yield in Canada. For this episode of the Pest and Predator podcast, brought to you by Field Heroes powered by the Western Grains Research Foundation, host Shaun Haney discusses a fascinating predator of bertha armyworm with Alberta Pulse Growers's Nevin Rosaasen. The bertha's most common predator, Banchus flavescens, is easy to distinguish by its distinctive segmented body and a very long ovipositor that looks like a long tail. It is usually a light yellow, but it can come in other colours as well, with shades of orange on the "tail." This parasitoid wasp lays its eggs in the first to third larvae stage of a bertha armyworms. The mature larvae are then killed prior to entering the soil to pupate overwinter, so this natural enemy does not destroy the larvae prior to the crop damage occurring, however it keeps the bertha populations in check. Rosaasen explains this wasp is one of the reason we often we see bertha armyworm impacts limited to two to three years at most. #farming #pulses #beneficialinsect #pests Website: https://www.realagriculture.com/ Find us on our other social media platforms: Twitter:   / realagriculture   Instagram:   / realagriculture   Facebook:   / realagmedia