Some say that this large red and black beetle looks like a tiny armadillo. Smaller antenna, head appears to be roach like or ant like. Since ingestion of these beetles can be fatal, some have warning colours to deter potential predators. ... Caragana or Blister Beetle. Grasshoppers will selectively consume faba bean plants in areas where other crops are present. As L. nuttalli commonly feeds on caragana (Caragana arborescens Lam.) The beetle is almost completely black save for a small spot of yellow on the abdomen that is usually hidden by its wing coverings. The beetle has a humpbacked body that is in the shape of a tear. Figure 6- Blister beetle on faba bean Source: Saskatchewan Agriculture. As with other blister beetles, this species has a small head in relation to its hard-shelled body. Blister beetles give off a toxic chemical called cantharidin when stressed, which can raise blisters on human skin. Grasshoppers can be a major insect pest of faba bean. The black and red blister beetle is found in southern states in the US and in Central America. Lytta nuttalli Say, a large purple and green blister beetle, readily attacks rapeseed in western Canada (Church 1975; Church and Gerber 1976, 1977). Large beetle type. Blister Beetle. Photo by Agriculture and Agri-Food Canada, Winnipeg. This year, we’re changing things up and highlighting the many natural enemies that help you out, silently and efficiently killing off crop pests. Nutttall’s Blister Beetle, Photo Credit: Shelley Barkley: DAMAGE: Adult blister beetles are 12-25 mm long; elytra are flexible and thorax is usually narrower than the round head and elytra. Saskatchewan Pulse Growers is a Pulse Crop Development Board that is accountable to and funded by growers. Canada Number 6882. 6440. A Black Blister Beetle can secrete a liquid from its body that causes pain and blistering on skin. Not sure if it can fly but has wings. Others like the bee flies (Figure 9) and blister beetles deposit their eggs in the soil near grasshopper eggs. 6882. (306) 668-5556. Representative Genera and … Physical contact should be avoided. This is a blister beetle (Coleoptera: Meloidae) in the genus Lytta likely Lytta nuttalli; Click here for more detailed information. Contact us! Nuttall blister beetle adults are metallic green or purplish (16-28 mm long). A typical attack was observed near Vanscoy, Saskatchewan in July 1981. Number 6440. This seemingly plain beetle's body may have a blue sheen in certain light. Blister beetles often attack faba beans in swarms, but generally in small patches within the field. Saskatoon, Saskatchewan Canada. This is a blister beetle (Coleoptera: Meloidae) in the genus Lytta; Click here example. Blister Beetles (predator) Last year, the focus of the Insect of the Week was crop pests. Three species of caragana or blister beetle will attack faba beans. ... Nutall’s blister beetle transiently showing up in some fields (blister beetle post), and the presence of the beneficial stiletto fly larvae which is a predator within the soil profile and targets wireworm larvae. Bankend, Saskatchewan. I have found a few of these around our orchard, but have seen 3 in our strawberries. In the Saskatchewan prairies Nuttall blister beetle Lytta nuttali Say is a sporadic pest of forages, canola, faba beans (Vicia faba) and a variety of other crops like lupin (Lupinus spp.) When the larvae of egg predators hatch, … Rear is an iridescent green and head area is iridescent reddish purple. on the Canadian prairies, attacks on rapeseed crops often occur near caragana hedges. The larvae of blister beetles climb onto bees and hitch a ride to the bees’ nests where they proceed to eat the eggs and stored food. Figure 10 - Blister beetle with larvae and grasshopper eggs. Saskatchewan‘s Crop Production News for 2018 is now posted. 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