Bioaktivitas Enam Ekstrak Tumbuhan untuk Pengendalian Hama Tungau Kuning Cabai Polyphagotarsonemus Latus Banks (Acari: Tarsonemidae) di Laboratorium

Ahsol Hasyim • Wiwin Setiawati • Luluk Sutji Marhaeni • Liferdi Lukman • Abdi Hudayya
Journal article Jurnal Hortikultura • December 2017 Chile • Indonesia

Abstract

In the last 3 years P. latus severity on various types of Capsicum in some central production increased with the intensity above 30%. In agriculture, around 15,416 tonnes of pesticides have been used for plant protection purposes, which annually increased about 7%. This act can resulting inefficiency of production and the negative impact on the target pest, ecosystem, consumers, and the risk of pesticide residues in exported products . In the recent years, environmentally –friendly pest management is established to reduce the use of synthetic pesticides. Utilization of botanical pesticides is one option for environmentally friendly to suppress the attack of Chili mite P. latus. Plants extracts of from six plant species were screened for contact toxicity and antifeedant activities against mite, P. latus. This study aims to determine the effectiveness of some plant extracts as bioacaricide for pest mite P. latus on Chili plants. The experiments were conducted at the Laboratory of Pests and Diseases, Indonesian Vegetables Research, Lembang, West Java Province from October 2015 until January 2016. A modified leaf disc method describes by IRAC no. 4 was used for mites and for dry film method for or predators of M. sexmaculatus. Mite mortality was observed at 1, 3, 6, 12, 24, and 72 hour after treatment. The mortality of mite data was analyzed using probit to determine the LC50 and LT50 values. The result shows that LC50 obtained from plant bioacaricide of tuba root, kirinyuh, huni, widuri, ketapang, and gamal were 286.84, 370.57, 373.03, 477.92, 525.110 and 650.44 ppm respectively. Whereas LT50 obtained from plant bioacariside of kirinyuh, tuba root, huni, widuri, ketapang, and gamal were 9.98, 9.99, 12.65, 20.01, 26.61, and 42.77 hours respectively. The results of the calculation of the value of selectivity ratio (SR) shows that all plant extracts tested as bioacaricide were selective against predators M. sexmaculatus due to the value of SR <1. The combination of extract bioacaricide selective with inundative release of M. sexmaculatus adult to achieve sound of IPM mite in Chili pepper. A field trial is still needed to confirm result of this study.

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Jurnal Hortikultura

Jurnal Hortikultura (J.Hort) memuat artikel primer yang bersumber dari hasil penelitian hortikul... see more