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All Journal Buletin Penelitian Tanaman Rempah dan Obat Buletin Penelitian Tanaman Rempah dan Obat
Tri Eko Wahyono
Indonesian Spices and Medicinal Crops Research Institute
Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management

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PERSISTENSI RESIDU INSEKTISIDA NABATI PIRETRUM (Chrysanthemum cinerariaefolium) DAN MIMBA (Azadirachta indica) PADA TANAMAN PADI Agus Kardinan; Tri Eko Wahyono; Nurbetti Tarigan
Buletin Penelitian Tanaman Rempah dan Obat Vol 28, No 2 (2017): BULETIN PENELITIAN TANAMAN REMPAH DAN OBAT
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v28n2.2017.191-198

Abstract

Brown planthopper is still a major problem in rice. Control using botanical insecticides is considered less effective, since its persistence in rice plantation is short. Research on the persistence of botanical insecticide residues of pyrethrum and neem in rice has been conducted in green house of Entomology, Indonesian Spices and Medicinal Crops Research Institute, Bogor from January to December 2016. The research was aimed to determine the persistence of botanical insecticide residue on rice by testing it to brown planthopper mortality. The study was arranged in complete randomized design with six treatments and four replications. The treatment consisted of two pyrethrum formulas (EC); two neem formulas (EC); positive controls of synthetic insecticides (a.i. carbosulfan) and negative control (water). The method used was Leaf Residue Method, by spraying the formula into one month-old rice plants, then 10 brown planthopper nymphs of forth instar were introduced into each plant in the first, second, third and fourth day after spraying.  The planthopper mortality was observed in the first, third, sixth, 24th and 48th hours after introduction. The residuals of all insecticides tested were still affecting the  mortality of brown planthopper until the fourth day after spraying, although the effectiveness decreased by the time. The average mortality on the first day introduction after spraying ranged between 53-73 % and in the fourth day after spraying was 18-25 %.
The Effectiveness of Pyrethrum, Neem, Beauveria bassiana and Metarhizium anisopliae Against Brown Plant hopper (Nilaparvata lugens Stal.) Agus Kardinan; Tri Eko Wahyono; Nurbetti Tarigan
Buletin Penelitian Tanaman Rempah dan Obat Vol 30, No 1 (2019): Buletin Penelitian Tanaman Rempah dan Obat
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v30n1.2019.1-10

Abstract

Brown plant hopper (Nilaparvata lugens Stal) is the main pest on rice cultivation.  Synthetic insecticides application had negative impact to the human health and environment. The research objective was aimed to examine the effectiveness of botanical (pyrethrum and neem) and bio-insecticides (Beauveria bassiana/Bb and Metarhizium anisopliae/Ma) against brown plant hopper. Research was conducted at Entomology Laboratory of Indonesian Spices and Medicinal Crops Research Institute, Bogor in 2017. Trial consisted of two activities: the effectiveness of botanical and bio-insecticides to brown plant hopper mortality and horizontal transmission of bio-insecticides on brown plant hoppers. Botanical pesticide tested was (1) pyrethrum I (5 ml.l-1 water ), (2) pyrethrum II (5 ml.l-1 water), (3) neem I (20 ml.l-1 water), (4) neem II (20 ml.l-1 water), (5) synthetic insecticide (2 ml.l-1 water) and (6) control.  Bio-insecticide treatments were (1) Bb (spraying, 2.5 ml/plant), (2) Bb (granule, 5 g/pot), (3) Ma (spraying, 2.5 ml/plant), (4) Ma (granule, 5 g/ pot) and (5) control.  Treatments of horizontal transmission was the ratio of infected : healthy brown plant hopper 1 : 10; 2 : 10; 3 : 10 and 4 : 10. Botanical insecticides were prospective to suppressing brown plant hopper population of 85-87 % (pyrethrum) and   60-70 % (neem).   B.  bassiana was able  to   suppress   brown   plant     hopper population (18.2%), better than   M. anisopliae (5.6 %). Biological insecticide application by contact (spraying) was better than applied in granules form.  Botanical insecticide application showed no horizontal transmission from infected to healthy insect. Botanical insecticide (pyrethrum and neem) was more prospective than bio-insecticide (B. bassiana and M. anisopliae) in controlling brown plant hopper. 
PERSISTENSI RESIDU INSEKTISIDA NABATI PIRETRUM (Chrysanthemum cinerariaefolium) DAN MIMBA (Azadirachta indica) PADA TANAMAN PADI Agus Kardinan; Tri Eko Wahyono; Nurbetti Tarigan
Buletin Penelitian Tanaman Rempah dan Obat Vol 28, No 2 (2017): BULETIN PENELITIAN TANAMAN REMPAH DAN OBAT
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v28n2.2017.191-198

Abstract

Brown planthopper is still a major problem in rice. Control using botanical insecticides is considered less effective, since its persistence in rice plantation is short. Research on the persistence of botanical insecticide residues of pyrethrum and neem in rice has been conducted in green house of Entomology, Indonesian Spices and Medicinal Crops Research Institute, Bogor from January to December 2016. The research was aimed to determine the persistence of botanical insecticide residue on rice by testing it to brown planthopper mortality. The study was arranged in complete randomized design with six treatments and four replications. The treatment consisted of two pyrethrum formulas (EC); two neem formulas (EC); positive controls of synthetic insecticides (a.i. carbosulfan) and negative control (water). The method used was Leaf Residue Method, by spraying the formula into one month-old rice plants, then 10 brown planthopper nymphs of forth instar were introduced into each plant in the first, second, third and fourth day after spraying.  The planthopper mortality was observed in the first, third, sixth, 24th and 48th hours after introduction. The residuals of all insecticides tested were still affecting the  mortality of brown planthopper until the fourth day after spraying, although the effectiveness decreased by the time. The average mortality on the first day introduction after spraying ranged between 53-73 % and in the fourth day after spraying was 18-25 %.
Co-Authors Agus Kardinan Agus Kardinan Nurbetti Tarigan