Last year my garden was over run with stink bugs. My husband went on a stink bug quest this past winter. He was determined to rid out house and property of them. He bought traps... they didn't work.

They move indoors for the cold weather. So, during fall and winter he went through our attic once a week - twice if he got lots of them - with a funnel water jug contraption he caught them in to drown them. He was diligent. He caught thousands over the course of the fall and winter, but by spring there were none left to find. I didn't have any in my garden this year.

He started his sweep of the attic last week again. Only caught 3.

I too noticed only a few this year and really didn't do anything to get rid of them...same with Japanese beetles. Perhaps they are just moving elsewhere. Year before last stinkbugs were ruining my tomatoes, so I made a thick paste with Sevin powder and patted it onto pink tomatoes, being very careful not to get it anywhere else. That seemed to work. They only liked ripe tomatoes.

Marmorated stink bugs are not the same as Squash bugs. Squash bugs attack squash, pumpkins, and other members of the cucurbit family. I'm not really bothered by stink bugs, but squash bugs make my life (as a gardener) miserable. Together with cucumber beetles, it is a wonder I ever get any squash or pumpkins!

See this University of Minn. website, http://www.vegedge.umn.edu/vegpest/cucs/squabug.htm.
It says, "The squash bug can be misidentified as a stinkbug. Both insects look similar and emit a distinct odor when crushed; however, the stinkbug is not a pest of cucurbits and is more commonly associated with tomatoes or various legumes such as soybeans and peas."

Here is a link that might be useful: Squash bug