heracleum sphondylium การใช้

They mainly feed on pollen and nectar of " Heracleum sphondylium " as well as small insects.
Adults feed on nectar and pollen from " Tanacetum vulgare " and " Heracleum sphondylium ".
Adult wasps feed on aphid honeydew and nectar of " Anthriscus sylvestris " and " Heracleum sphondylium ".
The female's abdomen is gray and her wings are clear . " E . livida " lives in hedgerows, feeding on the nectar of several species of Rosaceae, several species of Asteraceae, and " Heracleum sphondylium " nectar; they also feed on other insects.
Around the pest house there is rank grassland and scrub with flowering plants such as hemlock ( " Conium maculatum " ), hogweed ( " Heracleum sphondylium " ) and good populations of balm-leaved figwort ( " Scrophularia scorodonia " ) which is spreading in one area.