| dc.description.abstract | Pest control by utilizing ecosystem services through the presence of natural
enemies (predators and parasitoid) is a more environmentally friendly system.
The diversity and abundance of natural enemies are influenced by the complexity
of agroecosystem. This study aims to determine the effect of the complexity of rice
agroecosystems on the diversity and abundance of natural enemies and the
potential for controlling natural enemies of rice pests on various complexities of
agroecosystems. The study was conducted using a survey method on three plots of
simple agroecosystem paddy fields (conventional) and three plots of complex
agroecosystem paddy fields (surjan) in Pleret Village, Panjatan Subdistrict,
Kulon Progo Regency, Yogyakarta. Sampling of natural enemies were collected
using the sweep net, yellow sticky trap and pitfall trap in 35, 50, 65 and 95 days
after rice planting. The results showed that the species richness of natural enemy
in the complex agroecosystem paddy fields (H’ = 1,472) higher than simple
agroecosystem paddy fields (H’ = 1,119), and the species richness index of
natural enemies of both agroecosystems was classified as moderate. The
abundance of natural enemies in the complex agroecosystem paddy fields (D =
0,632) higher than simple agroecosystem paddy fields (D = 0,507) and
abundance index of natural enemies of both agroecosystems was classified as
high. Based on the level of species richness, abundance and evenness of natural
enemies in the complex agroecosystem paddy fields has higher potential to
control pests than simple agroecosystems | en_US |
