Diversity and abundance of insect pollinator on dimocarpus longan l. In Sawitsari research station, Sleman, Yogyakarta

Kelengkeng Super Sleman (KSS) is a new variety of Dimocarpus longan L. developed at Sawitsari Research Station, Sleman, Yogyakarta. As the key of agroecosystems, insects play an important role in aiding the process of pollination of flowers. The research was aimed to study the diversity and pollination effectivity of insect pollinators on Kelengkeng Super Sleman (Dimocarpus longan L.) in Sawitsari Research Station, Sleman, Yogyakarta. The purposive sampling method including active and passive was used to explore the diversity of insect pollinators. Observation was conducted on three ranges of time, morning (08.00 to 09.00 am), noon (11.00 am to 12.00 pm), and evening (03.00 to 05.00 pm). The result showed that 19 families identified and 21 families unidentified from active and passive methods with Calliphoridae and Formicidae had the highest flower-visiting activity in the morning, noon, and evening. Besides that, uncovered panicles successfully pollinated with an average of 114 flowers, while covered panicles only 43 flowers. In conclusion, both Calliphoridae and Formicidae were the most KSS pollinators and the flower cover hinders the pollination process.