Email this article Efektivitas Getah Widuri Terhadap Larva Nyamuk Aedes aegypti
Abstract
Chemical insecticide and biological insecticide are the most widely used insecticide for dengue control program in Indonesia. Dengue hemorrhagic fever (DHF) control in Indonesia mostly using insecticide from the group of organophosphate (malathion and temephos). The use of chemical insecticide for a long time can cause mosquitoes vector to be tolerant and eventually resistant to insecticide. One of the solutions to this problem is to use larvacide derived from plants. The objective of this study was to determine the effectiveness of Widuri snap against Aedes aegypti larvae. This was an experimental study which using a positive control group, a negative control group, and five treatment groups. The results showed that the LC50 and LC90 was 918.45 ppm and 1845.48 ppm, respectively.
Insektisida yang paling banyak digunakan sebagai pengendali vektor penular Demam Berdarah Dengue (DBD) di Indonesia adalah insektisida kimia, insektisida biologi dan modifikasi lingkungan. Pengendalian penularan DBD di Indonesia masih banyak dilakukan secara kimia menggunakan insektisida golongan organofosfat (malathiondan temephos) untuk menurunkan kepadatan vektornya. Penggunaan insektisida kimia dalam jangka waktu lama akan memberi efek menekan dan menyeleksi serangga sasaran untuk menjadi toleran sampai resisten terhadapnya. Salah satu alternatif solusi yaitu menggunakan larvasida yang berasal dari tanaman. Penelitian ini bertujuan untuk menentukan efektifitas getah widuri (Calotropis gigantea) terhadap larva nyamuk Aedes aegypti. Penelitian ini dilaksanakan pada Bulan Maret sampai Oktober 2014 di Laboratorium Sumber Daya Hayati Balai Litbang P2B2 Donggala. Jenis penelitian yang digunakan yaitu experimental, besar sampel terdiri atas kontrol negatif (aquadest), kontrol positif (abate) dan lima kelompok perlakuan konsentrasi 1000, 1250, 1500, 1750 dan 2000 ppm berisi 25 larva dengan pengulangan dilakukan sebanyak empat kali. Mortalitas larva dihitung setiap tiga jam selama 24 jam. Analisis probit dilakukan untuk menghitung nilai LC50 dan LC90 . Hasil penelitian diperoleh nilai LC50 sebesar 918,45 ppm dan nilai LC90 sebesar 1845,48 ppm. Hasil menunjukkan getah widuri (Calotropis gigantea) efektif membunuh larva Ae. aegypti.
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