author(s)
Mohammed AA, A Lasady, Dzolkhifli Omar, Yusof Ibrahim and Rohani Ibrahim

abstract
Field experiments to determine ovipositional preferences of Apertochrysa sp. were carried out in Malaysian agro ecosystem with citrus and corn plants. Although that (76%) of eggs were noticed within 1-2 m, the results showed no significant differences in ovipositional preference between the heights of citrus trees. While in corn plants 100% of eggs were observed on height 1-2 m above the ground, with highly significant differences compared with others heights. The east direction was the preferred orientation for females of Apertochrysa sp. to lay their eggs in citrus trees recorded (79.8%) and 66.7% in test 1 and 2 respectively. While no differences between east and west direction for females to lay their eggs in corn plants. The lower leaf surface appeared the preference place for oviposition in citrus recorded (93.7%) and corn plants (100%). The highest percentage (59.2%) from all eggs collected were recorded on corn plants aged 60 days and significantly differed with others ages.