The study was conducted at conventional irrigated rice fields in Khon Kaen province, Muang
district, located in the northeastern region of Thailand. Photoperiod-insensitive variety Pitsanulok2
was used. Sampling of the terrestrial arthropod community was conducted to determine species
composition using standard sweeping net. This was done at fortnightly intervals after planting,
from January to April of 2011. Specimens were collected from 20 sweeps per replication and were
sorted and counted later in the laboratory. They were divided into different insect and spider taxa
and counted.