Abstract
Application synthetic insecticide with high frequency and continuously can give to negative impact. Alternative control which secures is botanical insecticide. This research aimed to effectiveness tests of P. methysticum plant against C. pavonana larvae using root and leaves this plant. The tested insecticide activity including mortality and feeding inhibition tests. The extract was tested at five concentration levels and repeated five times. The results showed that P. methysticum root extract was able to cause C. pavonana larvae mortality of 94% with a concentration of 419.7 gram/100 ml in water meanwhile, the testing using leaves extract causes mortality 98% from concentration 342 gr/100 ml in water. The feeding inhibition test showed the P. methysticum roots extract give effect with very weak criteria at some concentrations used a no choice method while Leaves extract P. methysticum does not show feeding inhibition.
Highlights
Crocidolomia pavonana (Lepidoptera: Crambidae) is one of the pest in the cabbage plants
When applying synthetic insecticides intensively and excessively it will cause very dangerous negative impacts such as insect pest resistance, pollution to the surrounding environment which is indicated by the death of organisms non-target such as natural enemies, livestock, and other organisms
The mortality percentage of C. pavonana larvae treated with P. methysticum roots extract on 24 HAT observations showed that the mortality of test larvae was 6-20% at low concentrations to the highest concentrations
Summary
Crocidolomia pavonana (Lepidoptera: Crambidae) is one of the pest in the cabbage plants. Farmers use synthetic insecticides to control these pests. The P. methysticum plant is known as WATI by the indigenous people of Merauke, the Marind tribe. This plant is used by the community in several important events such as funerals, pig feasts, weddings, religious events, peace events and is used as a dowry for women who are getting. The local community uses the plant as traditional medicine, such as the part of the stem which is used as cough medicine and wound medicine [1].
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