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Message: <blockquote data-quote="yellow belly" data-source="post: 6397828" data-attributes="member: 305">They said they counted the number of larvae on the nodules then measured the yield from non 1 or2  or more there was no difference Looking at my beans there are 2 or 3 larvae per plant with each plant having a lot of nodules so  only a small percentage of nodules affected I am sure there has been no definitive trial done on the yield loss So the view taken in the past is nodules get eaten must be detrimental so spray for weevil But if spray reduces benificials and pollinators this may reduce yields There has been trials that show that more pollinators in beans increase yield Beans are a unpredictable crop more so that osr but cost significantly less to grow  very rewarding when you unexpectedly get 5 tonne a ha</blockquote>