Location: Minneapolis, MN
August 9, 2014 7:25 pm
This photograph was taken 7-15-14 in Minneapolis, MN. The beetles are on a raspberry plant in our garden. (We had the rainiest June on record & July was also very rainy.) Curious to know what these are.
Signature: Jodie Walters
Though they are colorful and quite pretty, these Candystriped Leafhoppers, Graphocephala coccinea, are not beneficial insects in the garden. Like Aphids, they are fluid sucking Hemipterans that might spread viral infections from plant to plant. According to BugGuide: “Several species [of Leafhoppers] are serious crop pests; some transmit plant pathogens (viruses, mycoplasma-like organisms, etc.)” We are not certain if the Candystriped Leafhopper is one of the virus spreading species. Dave’s Garden discusses the negative and neutral comments regarding the Candystriped Leafhopper. According to the Boston Harbor Islands All Taxa Biodiversity Inventory: “It is thought that candy-striped leafhoppers may be one of several leafhopper species that transmit the bacteria which cause Pierce’s disease between plants as they are feeding. This disease can kill grape vines and other woody plants.”