Agroecosystem complexity of Surjan and Lembaran as local farming systems effects on biodiversity of pest insects

Abstract

Abstract. Trisnawati DW, Nurkomar I, Ananda LK, Buchori D. 2022. Agroecosystem complexity of Surjan and Lembaran as local farming systems effects on biodiversity of pest insects. Biodiversitas 23: 3619-3629. Farming systems can influence the diversity and abundance of insect pests. This study was conducted to determine the effect of Surjan and Lembaran farming systems on the diversity and abundance of insect pests in Kulon Progo, Yogyakarta. The field survey was conducted in three Surjan paddy fields and three Lembaran paddy fields in Panjatan Subdistrict, Kulon Progo Regency. The sampling of pests was collected using four kinds of traps, such as sweeping net, yellow sticky trap, pitfall trap, and yellow pan trap. The traps were set twice in the vegetative phase and twice in the generative phase. The results showed that the abundance of pests in Surjan paddy fields was not different from that in Lembaran paddy fields. However, the number of pest species in Surjan paddy fields was higher than in Lembaran paddy fields. In addition, the structure and composition of pests in both farming systems were significantly different. Hemiptera was the most common insect in both farming systems, with dominant pest species of Nephotettix virescens and Nilaparvata lugens.

Review of the high bed–low ditch system as an alternative to lowland paddy in tropical and subtropical Asia

“…Domingo and Hagerman (1982) defined a sorjan system as a series of constructed raised beds and lowered ditches where upland crops can be grown on the beds and wetland crops can be grown simultaneously in the ditches. This arrangement prevents the raised beds from being submerged by water during the high tide period, although water flows into the land between the raised beds (Domingo and Hagerman, 1982;Hundal and Tomar, 1985;Marwasta and Priyono, 2007;Awal, 2014;Trisnawati et al, 2022). In Thailand, a similar technique is called rong chin system.…”

“…Compared with the rice monocropping, planting paddy using HBLD method increased the species richness of pests, at the same time reduced their single species abundance. In other words, the HBLD method was an effort to keep pest populations at a low and balancing level (Trisnawati et al, 2022). The HBLD system is one of the local cultural wisdoms for dealing with pest and plant disease problems in the Special Region of Yogyakarta, Indonesia.…”

Diversity studies on insect pests of high altitudinal transitional zones of North-western Himalayas

“…Insect pests are major limitations on agricultural and forestry output (Pureswaran et al 2018;Trisnawati et al 2022). Despite the lack of comparable global estimates for forestry systems (Niquidet et al 2016), forest pests such as the gypsy moth (Lymantria dispar Linnaeus, 1758) in Appalachian Plateau and mountain pine beetle (Dendroctonus ponderosae Hopkins, 1902) in western North America are known to have major ecological consequences.…”