Aside from butterflies, bees are the insects most folks associate with pollination.  They perform the bulk of the work, worldwide, but many other insects are also major contributors.  These include wasps, flies, and even the hated mosquito.  Mother Nature maintains a delicate, beautiful balance and things never pan out well when we meddle.  Please avoid the use of any product ending in “cide,” and allow wildflowers to encroach across your yard.  Feed pollinators and we feed ourselves.