(Iowa) Brown bug on raspberry leaf. What is this?
it is a Pentatomidae, order Hemiptera, and it is called a brown stink bug. They do feed on plants and can cause damage on fruits…like the berries of this red raspberry plant. And no, it did not do the eating of the foliage, the stink bugs have sucking mouth parts to suck plant juices, an insect like the grasshopper with chewing mouthparts made the leaf damage here.
The brown stink bug looks very much like the spined soldier bug, which is a very beneficial insect. The spined soldier bug has sharp pointed “shoulders” and feeds on other insects like soybean looper and other pest caterpillars.
If you handle any of the stink bugs they give off an odor…hence the name.