A relatively recent arrival to the Beehive State, the Elm Seed Bug (Arocatus melanocephalus) has quickly become one of the most annoying pests in Northern Utah due to their sheer numbers and persistence.
Massive CongregationsUnlike most pests that hide, Elm Seed bugs gather by the thousands on the sunny, south-facing walls of Utah homes during the heat of June and July.
Expert NavigatorsThey are incredibly flat, allowing them to crawl through the tiniest gaps in window tracks and under door sweeps to enter your home.
Active All SummerWhile Boxelder bugs are mostly a fall problem, Elm Seed bugs are active throughout the entire Utah summer, making them a constant headache for homeowners.
Why are there thousands of tiny brown bugs on my window screens?They are attracted to the heat radiating from your home. They gather on screens specifically because they are looking for a gap to crawl inside and find a cooler environment.
Are they eating my house or my trees?No. They feed on the seeds of Elm trees (which are everywhere in Utah). They do not cause structural damage and do not harm the health of the trees they feed on.
Can I just vacuum them up?Yes, but be warned: if you use a vacuum without a HEPA filter or a bag, the "stink" they release when disturbed will be exhausted back into your room.
