Pollination and floral insect visitors of non-native Crataegus monogyna Jacq and Crataegus mexicana DC (Rosaceae) in the Eastern Cape Province, South Africa

This data set is the number of different insect species visiting two alien plant species at different times of the day (morning, midday, and afternoon). The data set is also data for the number of fruits (percentage fruit set) produced following exclusion experiments on these alien plants.