| dc.description.abstract | The rice cultivation system can affect agroecosystem complexity such as
abundance and diversity of pest. This study was conducted to determine the effect
of simple agroecosystems (conventional paddy fields) and complex agroecosystems
(surjan paddy fields) on diversity and abundance of pests, and to determine the
appropriate pest control strategies. The study was conducted using a survey method
on three plots of simple agroecosystem (conventional paddy fields) and three plots
of agroecosystem complex (surjan paddy fields) in Pleret Village, Panjatan
Subdistrict, Kulon Progo Regency, Yogyakarta. The method used for sampling soil,
plants, and pests is purposive sampling. Pest sampling was collected using pitfall
trap method, sweep net, and yellow trap. The results showed that soil and plant
nutrition improved abundance and diversity. Diversity index and abundance of pest
on surjan paddy fields tend to be higher than on conventional paddy fields. Pests
obtained in the conventional field was 20,313 individuals consisting of 8 orders, 26
families, and 52 morphospecies. Pests obtained on surjan paddy fields were 11,033
individuals consisting of 11 orders, 33 families, and 69 morphospecies. Pest control
strategies that can be carried out on conventional and surjan paddy fields was crop
rotation, improving agroecosystems complexity, simultaneous planting, using the
resistant varieties, the arrangement of planting space, using organic fertilization,
trap installation, utilization of natural enemies, and using of organic insecticides | en_US |
