Seed-applied insecticides remain the most consistent and effective tool for reducing pea leaf weevil feeding and protecting yield in both peas and faba beans. While delaying seeding often reduced visible leaf feeding, the effect was inconsistent. It frequently resulted in yield penalties, making it an unreliable management strategy, especially for faba beans, which experienced higher overall weevil pressure. Supplemental nitrogen did not reduce pea leaf weevil feeding but, in some cases, helped offset yield losses where nodulation or root health may have been compromised; however, the high nitrogen rates used were generally not economically viable. Across sites, responses to all management strategies were strongly influenced by growing conditions, reinforcing that the environment plays a major role in crop response.

Early seeding with a registered seed applied insecticide is the most reliable way to manage pea leaf weevil and protect yield in peas and faba beans. Delayed seeding and extra nitrogen were inconsistent and often increased risk, especially in faba beans, which were shown to be more attractive to pea leaf weevil than peas.