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• W2415268666 abstract "ABSTRACTRecolonization of Natural Enemies after Insecticide Application in Rice Planting AreaThe study to assess recolonization of natural enemies after insecticide application in rice planting area was carried out in the wet season of 2013 at Karawang Regency. The application of several insecticides of rynaxypyr, fipronil, dinotefuran, pymetrozine, imidacloprid, and BPMC was conducted when brown plant hopper population was rising and yellow stem borer flight was occurring. Observation of natural enemies was carried out on 1, 3, 5, 7, 10, 15, and 21 days after application (DAA) using sweep net for 4 swings per plot. The results showed that spiders were relatively safe to the rynaxypyr and fipronil insecticides with hampered recolonization index (HRI) of very light and light where recolonization occurred on 1 DAA. All tested insecticides highly affected Telenomus rowani with HRI of heavy to very heavy that this parasitoid recolonized at 7 DAA. On the other hand, all insecticides showed low influence on the recolonization of Tetrastichus schoenobii with HRI from unhampered to light hamper and the recolonization occurred on 1 DAA. The effect of rynaxypyr, fipronil, imidacloprid and BPMC application on Oligosita sp. and Anagus sp. recolonization was categorized to be low with HRI of light hamper that the recolonization happened at 1 DAA and 5 DAA, respectively. The insecticides of fipronil and BPMC were considered to slightly hamper the chironomid with the light value of the HRI and the chironomid recolonized at 1 DAA on fipronil and 3 DAA on BPMC.Keywords: Effect of insecticides, Recolonization of natural enemy, RiceABSTRAKPenelitian rekolonisasi musuh alami setelah aplikasi insektisida di pertanaman padi dilakukan pada musim hujan 2013 di Kabupaten Karawang. Aplikasi insektisida berbahan aktif rinaksipir, fipronil, dinotefuran, pimetrozin, imidakloprid, dan BPMC dilakukan saat populasi hama wereng coklat meningkat, sementara penerbangan penggerek batang padi kuning sedang berlangsung. Pengamatan terhadap musuh alami menggunakan jaring serangga sebanyak 4 ayunan per petak pada 1, 3, 5, 7, 10, 15, dan 21 hari setelah aplikasi (HSA). Hasil penelitian menunjukkan bahwa laba-laba relatif aman terhadap insektisida rinaksipir dan fipronil dengan nilai indeks hambatan rekolonisasi (IHR) kedua insektisida tersebut sangat ringan dan ringan dengan kecepatan rekolonisasi laba-laba pada 1 HSA. Semua insektisida menekan sangat tinggi terhadap Telenomus rowani dengan IHR berat sampai sangat berat dan rekolonisasi parasitoid tersebut dinilai lambat yaitu 7 HSA. Insektisida menekan sangat rendah terhadap Tetrastichus schoenobii dengan IHR dari tidak ada hambatan sampai hambatan ringan dan kecepatan rekolonisasinya terjadi pada 1 HSA. Tekanan insektisida rinaksipir, fipronil, imidakloprid, dan BPMC terhadap Oligosita sp. dan Anagus sp. agak rendah dengan IHR ringan dan kecepatan rekolonisasi Oligosita sp. pada 1 HSA dan Anagrus sp. pada 5 HSA. Insektisida fipronil dan BPMC agak menekan chironomid dengan nilai IHR ringan dan kecepatan rekolonisasi 1 HSA pada fipronil dan 3 HSA pada BPMC.Kata Kunci: Pengaruh Insektisida, Rekolonisasi musuh alami, Padi" @default.
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• W2415268666 date "2016-04-05" @default.
• W2415268666 modified "2023-09-25" @default.
• W2415268666 title "Kecepatan dan Hambatan Rekolonisasi Musuh Alami Setelah Aplikasi Insektisida di Pertanaman Padi" @default.
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• W2415268666 doi "https://doi.org/10.24198/agrikultura.v27i1.8476" @default.
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