Absolutely! Go into your Google Adsense page and click Adsense Setup and then click Ad Review Center. Then, choose the kind of ads you don't want and click submit.
I know this affects the ads that are yours, but I don't think it affects the 40% that belong to Hubpages, so I'm not sure it will remove them totally. However, it will remove the 60% of them that are yours.
I hope this helps. :)