IDAHO WHEAT COMMISSION

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MFC -- A New Cereal Aphid in the Intermountain West

The entomology world is abuzz with the invasion of a new aphid affecting cereal grains of the intermountain west – and it’s time for Idaho growers to take note. Metopolophium festucae cerealium, or “MFC” was first found in the region in 1994 and was widespread in Northern Idaho by 2011. As an aphid in cereal grains, MFC uses its piercing and sucking mouthparts to damage plants with its phytotoxic saliva. According to research, as few as 16 aphids per plant can decrease wheat plant biomass by 25%.Current research is underway at the University of Idaho to reveal the details of MFC. It is not yet known if MFC is a vector of Barley Yellow Dwarf Virus like Russian Wheat Aphid, but possible transmission is suspected. Wheat and barley are the most preferred host plants for MFC, but native grasses can host these aphids as well.Visit here for a current update and details about treatment options for MFC.  Additional resources can be found here.