zoo foliage
To study mosquito movement near a zoo in Manhattan, Kansas, researchers sprayed a dyed sugar bait on foliage in forested and riverine areas of the zoo. Along the way, however, they discovered that local colonies of honey bees had foraged on the bait when much of their honey appeared red from the dye used in the bait. (Image originally published in Kapaldo et al 2018, Journal of Insect Science)