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The elm zigzag sawfly (EZS), Aproceros leucopoda, is a non-native insect recently detected in several midwestern states.  Originally from eastern Asia, this insect is rarely considered a problem in its native range, having several natural enemies and environmental factors able to keep it in check.  However, when in new landscapes, aspects of this insect’s life…Read more about A New Threat to Elms in North America[Read More]


We have received a few elm tree samples this year with a disease we do not often see, but which is relatively common: black spot of elm. This disease, also called elm anthracnose, is caused by the fungus Stegophora ulmea and can affect most species of elm with American elm varieties being more susceptible. The…Read more about Black Spot of Elm[Read More]


While our entire state did not receive the amount of rain from the remnants of Hurricane Helene compared to other states, most of Indiana did receive at least an inch of precipitation over the past few weeks with some southern counties receiving over five inches (Figure 1). General impacts have been greener lawns (don’t put…Read more about Remnants of Helene helped to improve drought conditions across Indiana[Read More]


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