Yunus, Muh. (2018) Pengaruh Samping Aplikasi Insektisida Mipc Terhadap Serangga Predator Cyrtorhinus Lividipennis Dan Coccinella Sp. Pada Tanaman Padi Di Pasuruan. Sarjana thesis, Universitas Brawijaya.
Abstract
Parasitoid dan predator berperan menekan populasi hama secara alami. Namun penggunaan insektisida dan pupuk secara intensif menimbulkan dampak lingkungan termasuk musuh alami. Petani padi umumnya mengendalikan serangan hama wereng batang coklat Nilaparvata lugens (Stål) (Hemiptera: Delphacidae) menggunakan insektisida. Penggunaan insektisida dilakukan terjadwal tanpa memperhatikan populasi hama dan musuh alaminya di lapang. Insektisida MIPC (2-isopropilfenil metilkarbamat) seringkali digunakan petani untuk mengendalikan serangan N. lugens. Serangga predator Cyrtorhinus lividipennis (Reuter) (Hemiptera: Miridae) dan kumbang Coccinella sp. (Coleoptera: Coccinellidae) diketahui berperan menekan populasi N. lugens di agroekosistem padi. Penggunaan insektisida MIPC pada pertanaman tebu dilaporkan menurunkan kepadatan populasi predator serangga secara nyata. Penelitian ini dilakukan untuk mengkaji pengaruh samping aplikasi insektisida MIPC terhadap populasi Coccinella sp. dan C. lividipennis pada tanaman padi di lapang. Penelitian dilaksanakan di Dusun Peyek, Desa Candiwates, Kecamatan Prigen, Kabupaten Pasuruan dimulai dari bulan April sampai dengan Oktober 2017. Penelitian ini dilakukan di lahan padi verietas IR 64 pada pola tanam monokultur milik petani. Percobaan dilakukan dengan mengaplikasikan insektisida MIPC pada lahan padi. Rancangan yang digunakan adalah Rancangan Acak Kelompok (RAK) dengan 5 perlakuan dan 5 ulangan, sehingga terdapat 25 petak percobaan. Dosis aplikasi insektisida MIPC yang digunakan pada penelitian ini yaitu 0,5; 1,0; 1,5; dan 2,0 kg/ha. Aplikasi insektisida dilakukan sebanyak 5 kali dengan jarak satu minggu antar tiap aplikasi. Pada setiap petak percobaan dilakukan pengamatan terhadap jumlah populasi C. lividipennis dan Coccinella sp. Interval pengamatan tujuh hari setelah dilakukan aplikasi insektisida, sehingga terdapat enam kali pengamatan selama percobaan. Lahan penelitian merupakan lahan padi sawah yang memiliki saluran irigasi dengan ketersediaan air irigasi sepanjang tahun. Luas lahan keseluruhan adalah 1.000 m2. Teknik budidaya padi mengikuti metode budidaya yang diterapkan oleh petani setempat. Padi dipindah tanam pada umur 21 hari setelah sebar. Padi ditanam sebanyak 2 bibit per lubang dengan jarak 25x25 cm. Ukuran petak perlakuan yang digunakan adalah 4x6 m dengan jarak antar petak 1 m. Pemupukan dilakukan pada waktu tanam dengan menyebar pupuk urea dengan dosis 40 kg/ha dan pupuk P205 dosis 40 kg/ha. Pemupukan lanjutan dilakukan pada umur padi 25 hari setelah tanam dan saat berumur 50 hari setelah tanam dengan menyebar pupuk urea dosis 40 kg/ha. Data perkembangan populasi C. lividipennis dan Coccinella sp. pada petak percobaan dianalisis menggunakan analisis Sidik Ragam. Apabila hasil analisis Sidik Ragam menunjukkan bahwa perlakuan berbeda nyata, maka dilakukan uji lanjutan dengan uji Beda Nyata Terkecil (BNT) pada taraf kesalahan 5%. Hasil penelitian menunjukkan bahwa pengaruh samping aplikasi insektisida MIPC lebih besar terjadi pada C. lividipennis dibandingkan dengan Coccinella sp. Dosis perlakuan 0,5; 1,0 dan 2,0 kg/ha diketahui memiliki pengaruh nyata dalam menurunkan populasi C. lividipennis di lapang. Namun semua dosis perlakuan aplikasi insektisida MIPC pada penelitian ini tidak ii berpengaruh nyata dalam menurunkan populasi Coccinella sp. Selain itu diketahui bahwa dosis aplikasi insektisida MIPC yang aman bagi keberadaan populasi Coccinella sp. di lapang adalah 0,5; 1,0; 1,5; 2,0 kg/ha dan dosis 1,5 kg/ha untuk C. lividipennis.
English Abstract
Parasitoid and predator had the role to press the population of plant disease naturally. However, the using of the insecticide and fertilizer intensively caused the effect of environment include natural enemy. Commonly, the farmer managed the attack of pest Nilaparvata lugens (Stål) (Hemiptera: Delphacidae) used insecticide. The using of insecticide had scheduled without attention population of the pest and natural enemy in field. MIPC insecticide (2- isopropylphenyl methylcarbamate) often was used by the farmer to manage the attack of N. lugens. Predator insects Cyrtorhinus lividipennis (Reuter) (Hemiptera: Miridae) and Coccinella sp. (Coleoptera: Coccinellidae) had the role for reduce population N. lugens in the agroecosystem of the rice plant. The using of MIPC insecticide in the sugar cane reduced population destiny predator insects significantly. The purpose of this research is review the side-effect of insecticide MIPC toward of Coccinella sp. and C. lividipennis population in field. The research was conducted in Peyek Hamlet, Candiwates Village, Prigen Sub-district, Pasuruan Regency from April to October 2017. This research was conducted in IR 64 variety rice field on farmer's monoculture planting. The experiment was conducted by applying MIPC insecticide to rice field. The design used was Randomized Block Design with 5 treatments and 5 replications, so there were 25 plots. The dose of MIPC insecticide application used in this research were 0.5; 1.0; 1.5; and 2.0 kg/ha. Insecticide application were done 5 times with distance of one week between each application. In each experimental plot an observation was made of the population of C. lividipennis and Coccinella sp. The observation interval was seven days after the application of insecticide, so there were six observations during the experiment. The research field is paddy field that has irrigation channel with irrigation water availability throughout the year. The total land area is 1,000 m2. The technique of rice cultivation follows the cultivation method applied by local farmers. Rice is planten at 21 days after germination. Rice planted as many as 2 seeds per hole with a distance of 25x25 cm. Size of plot treatment used is 4x6 m with distance between plot 1 m. Fertilization were done at planting time by spreading urea fertilizer with dose 40 kg/ha and fertilizer P205 dose 40 kg/ha. Further fertilization is done on the age of paddy 25 days after planting and at age 50 days after planting with urea fertilizer spread dose 40 kg/ha. Population growth data of C. lividipennis and Coccinella sp. in the experimental plots were analyzed using Variance Analysis. If the results of the analysis showed that the treatment were significantly different, then continued test with the Least Significant Differences (LSD) at 5% error level. The result of the research showed that the side-effect of MIPC insecticide application was greater in C. lividipennis compared with Coccinella sp. Treatment of doses 0,5; 1,0 and 2,0 kg/ha is known to have a significant effect in reducing the population of C. lividipennis in field. However all treatment doses of MIPC insecticide application in this study have no significant effect in reducing the Coccinella sp. population. In adition, it is known that the dose of MIPC insectiside application that is safe for the presence of the Cocccinella sp. in the field are 0,5; 1,0; 1,5; 2,0 kg/ha and dose of 1,5 kg/ha for C. lividipennis.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FP/2018/540/051809651 |
| Uncontrolled Keywords: | Insektisida, Serangga, Cyrtorhinus Lividipennis, Coccinella Sp |
| Subjects: | 600 Technology (Applied sciences) > 632 Plant injuries, diseases, pests > 632.9 General topics of pest and disease control > 632.95 Pesticides > 632.951 Pesticides used to control specific kinds of animal pests > 632.951 7 Insecticides |
| Divisions: | Fakultas Pertanian > Hama dan Penyakit Tanaman |
| Depositing User: | Nur Cholis |
| Date Deposited: | 03 Dec 2018 07:07 |
| Last Modified: | 19 Oct 2021 12:47 |
| URI: | http://repository.ub.ac.id/id/eprint/13137 |
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