Penggunaan Pestisida Biorasional untuk Mengendalikan Hama dan Penyakit Penting pada Tanaman Kentang

Euis Suryaningsih

Abstract


Percobaan lapang dengan tujuan untuk mengendalikan hama dan penyakit penting pada tanaman kentang menggunakan pestisida biorasional dilaksanakan dari bulan April sampai Juli 2002 di Kebun Percobaan Margahayu (elevasi 1.250 m dpl), Lembang, Bandung, Jawa Barat, jenis tanah Andosol dan iklim tipe B1. Penelitian menggunakan rancangan acak kelompok, 12 perlakuan dan 3 ulangan. Perlakuan berupa seperangkat formula pestisida biorasional Phrogonal 866, 666, 466, Phronical 826, 626, 426, 846, 646, 446, dan Agonal 866. Pestisida biorasional tersebut diuji dan dibandingkan efikasinya dengan insektisida sintetik Deltametrin 2.5 EC 0,2% dalam mengendalikan hama dan penyakit utama kentang. Hasil penelitian secara jelas mengindikasikan bahwa pestisida biorasional tersebut sama, bahkan lebih efektif dibandingkan dengan Deltametrin 2.5 EC 0,2% dalam mengendalikan Thrips palmi dan Liriomyza huidobrensis. Di samping itu, beberapa pestisida biorasional juga menunjukkan indikasi mampu mengendalikan penyakit terpenting kentang yaitu Phytophthora infestans.

ABSTRACT. Suryaningsih, E. 2008. The Use of Biorational Pesticide for Controlling the Important Pests and Diseases on Potato. A field experiment to control important pests and diseases of potato was carried out from April to July 2002 at Margahayu Research Station (elevation 1,250 m asl), Lembang, Bandung, West Java on Andosol soil and B1 type of climate. A randomized block design with 12 treatments and 3 replications was employed. The treatments were a set of biorational pesticide formulas, namely Phrogonal 866, 666, 466, Phronical 826, 626, 426, 846, 646, 446, and Agonal 866. The biorational were tested and compared their efficacy with syntetic insecticide Deltamethrin 2.5 EC 0.2 % in controlling key pests and disease of potato. The results of the experiment clearly indicated that biorationals were as effective, and even more effective than Deltamethrin 2.5 EC 0.2% in controlling Thrips palmi and Liriomyza huidobrensis. In addition, some biorational pesticide were also showed good indication in controlling the most important disease of potato, namely late blight Phytophthora infestans.


Keywords


Solanum tuberosum; Biorational pesticide; Efficacy; Thrips palmi; Liriomyza huidobrensis; Phytophthora infestans.

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DOI: http://dx.doi.org/10.21082/jhort.v18n4.2008.p%25p

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