Image from page 39 of "Cooperative agricultural pest survey 2006 report " (2007)
Title: Cooperative agricultural pest survey 2006 report
Contributing Library: Montana State Library
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Fig. 4: EPSM adult. Taken from www.acgov.org/cda/awm/agprograms/images/pineshootlarge.jpg. Emerald ash borer (see Figs. 5 and 6) is a more recent pest problem. Since its discovery in Michigan in 2002, EAB has spread to Ohio, Indiana, and Ontario, killing 20 million ash trees and causing a regulatory quarantine to prevent EAB movement in the three U.S. states. Highly selective eaters, EAB larvae invade the inner bark of ash trees and inhibit water and nutrient translocation. The goals of Montana's EAB survey were to get a general idea of the quantity of ash trees throughout the state and to search for telltale signs of EAB infestations.
Text Appearing After Image:
Figs. 5 and 6: Ash borer larva and adult. Taken from www.emeraldashborer.info. Apple maggot (see Fig. 7), unlike the other three pests, is native to the U.S. It is distributed from Oklahoma to North Dakota and eastward. As its name indicates, AM use apple trees as a host, but they also feed on a variety of other fruits, including Cretaegus, a shrub native to Montana. Females lay their eggs beneath the skin of fruits. Larvae emerge to feed on the fruit; then, when the fruit drops, larvae transform into pupae and burrow into the soil to overwinter. -40
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