SummaryAt two sites in Himachal Pradesh, India, seed set, seed weight and seed germination were compared for 3Alliumspecies which were open-pollinated, enclosed in nylon cages or covered with cloth bags. Seed set and germination were significantly higher in open-pollinated than in caged umbels, but there was no significant difference between treatments for mean weight of 100 seeds. The Indian honeybee,Apis cerana indica, was the most frequent insect visitor. Of the three onion species,Allium cepawas preferred by insect visitors overAllium fistulosumandAllium cepa fistulosum. Apis dorsataforaged exclusively for nectar, but although mostApis ceranacollected nectar, a small percentage collected both nectar and pollen. The amounts of pollen adhering to the bodies of foraging insects varied greatly, honeybees carrying significantly larger amounts than all other insect species exceptEristalis tenax.