Activity of hexane extract of milkbush Euphorbia tirucalli (Euphorbiaceace) againsts the egg of Crocidolomia pavonana (Lepidoptera: Crambidae)

Abstract

Arneti, Khairul U, Putri NK. 2016. Activity of hexane extract of milkbush Euphorbia tirucalli (Euphorbiaceace) against the egg of Crocidolomia pavonana (Lepidoptera: Crambidae). Pros Sem Nas Masy Biodiv Indon 2: 1-6. The using of milkbush (Euphorbia tirucalli L.) as a botanical insecticide is one of pest management techniques for Crocidolomia pavonana which compatible with the integrated pest management (IPM) concept. The purpose of the research was to determine the effect of hexane extract of milkbush in suppressing the eggs hatch of C. pavonana in different ages. The research was conducted by using a completely randomized design (CRD) which consisted of 4 treatments and 7 replications. The treatments were the application of hexane extract of milkbush on different ages of C. pavonana eggs 1, 2, 3 and 4 days after laid. The hexane extract of milkbush was applied by using a dying method at concentration 0.23%. The result showed that hexane extract of milkbush at concentration 0.23% could suppress the eggs hatch of C. pavonana at age ranging from 1 until 3 days with the eggs hatch percentages were 12.72%, 36.50% and 44.00%, respectively, and ovicidal activity percentages were 87.15%, 63.32% and 55.42%, respectively. The hexane extract of milkbush did not influence C. pavonana eggs incubation period.