The granulate ambrosia beetle is capable of breeding in a wide variety of hosts. Known hosts in the U.S. include azalea, Bradford pear, Chinese elm, dogwood, fig, golden rain tree, magnolia, ornamental cherry, peach, pecan, persimmon, plum, redbud, red maple, Shumard oak, stryax, sweetgum, and sweet potato.
The granulate ambrosia beetle is a pest of woody ornamental, fruit and nut trees throughout Indiana and can cause significant damage in nursery and orchard settings. It spreads by natural distribution and shipment of contaminated plant material.
In 2002, it was first discovered in Indiana in Jackson County. In 2007, granulate ambrosia beetle occurs in 43 counties in Indiana: Bartholomew, Boone, Brown, Clark, Clay, Crawford, Delaware, Dubois, Floyd, Fountain, Greene, Jefferson, Hamilton, Hendricks, Henry, Howard, Jackson, Jennings, Johnson, Lawrence, Madison, Marion, Monroe, Montgomery, Morgan, Orange, Parke, Perry, Porter, Posey, Putnam, Randolph, Scott, Spencer, Sullivan, Switzerland, Tippecanoe, Vanderburgh, Vigo, Wabash, Warren, Wayne, and White.