The top results on google for DIY hummingbird feeder suggest a white-sugar solution for the feed. In humans we make a big deal about processed sugar vs. the sugar you get from, say, eating a piece of fruit. Does this matter for hummingbirds? Their metabolisms so high, it makes me wonder if this is relevant. Maybe it is not! But I would like to know.
Hummingbirds absolutely eat insects, and HONEY and BROWN SUGAR are a huge NO NO. The following is a statement from: http://wildbirdsonline.com/index.html
Every year, as more studies are completed, we learn more about hummingbird life and diets. However, we find that some people think that hummers can survive on nectar alone. Nectar provides quick energy to sustain their extremely high metabolic rate and little else. This is important enough that the shape of the bills of hummers have evolved in partnership with the flower shapes that they frequent. Consequentially, there is a wide variety of hummingbird bill lengths and shapes among the more than 300 species that exist.
There is another critical food source for the hummers. Essential vitamins, minerals, amino acids, proteins, oils and fats, fiber, etc. all come from the insects they eagerly consume, not the nectar. Their preferred insects include, but are not limited to: small beetles, true bugs, weevils, flies, gnats, mosquitoes, aphids, mites, leafhoppers, flying ants, and parasitic wasps. Their favorite insect food source is the spider and harvestmen (daddy long legs). Some ornithologists estimate that spiders are between 60% and 80% of their diet.
But there are lots of other resources for you to find accurate information about feeding hummingbirds.