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Sitona weevil

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" Print the page sitona weevil, Sitona discoideus, scalloped leaf damage Scalloped leaf damage... Larvae feed within or on the root nodules and can cause more serious damage than adults by reducing nitrogen fixation and retarding plant growth... Larvae feed through the winter and early spring to pupate in the soil and emerge as adults in late spring/early summer...
GRDC Taxonomy: