Article Per Year (5 Year)
p-Index From 2019 - 2024
0.23
P-Index
This Author published in this journals
All Journal JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Sudi Pramono .
Universitas Lampung
Agriculture, Biological Sciences & Forestry

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
DAMPAK APLIKASI INSEKTISIDA PERMETRIN TERHADAP HAMA PENGISAP BIJAIJ HELOPELTIS SPP. (HEMIPTERA: MIRIDAE) DAN ARTROPODA NON-TARGET PADA PERTANAMAN KAKAO (THEOBROMA CACAO L.) Hasibuan, Rosma; Swibawa, I Gede; Wibowo, Lestari; Pramono, Sudi; Hariri, Agus M
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 4, No 1 (2004): Maret, Jurnal Hama dan Penyakit Tumbuhan Tropika
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1064.608 KB) | DOI: 10.23960/j.hptt.148-12

Abstract

Impact of Permethrin-Insecticide Application on Mirid Pest of Cocoa Helopeltis spp. (Hemiptera: Miridae) and on Non-target  Arthropods in Cocoa Plantations (Theobroma cacao L.). Cocoa mirid bugs, Helopeltis spp., (Hemiptera: Miridae) are the most important pest of cocoa in Indonesia. A field study was conducted to investigate the effect of permethrin on cocoa mirids and non-target arthropods at a cocoa plantation in specific place. A randomized complete block design was used in which each of four blocks consisted of 5 treatments (4 concentrations of permethrin; 50; 100; 200; and 250 ppm and control). The results indicated that the application of permethrin significantly increased the cocoa mirids mortaliiy throughout all sprayed cocoa trees (up to 100% 72 h after application). Even at 1 h after application, the percentage of Cocoa mirids mortality 29.2% - 53.9%) on cocoa trees sprayed with permethrin at concentrations of 50 - 250 ppm was significantly higher than that on control plant (3.6%). At 72 h after treatments, application of permethrin at concentrations of 200 and 250 ppm caused a complete kill (mortalty of 100%) in the test mirids. Meanwhile, ground cloths caught at least 22 fanilies of abore-ground arthropods that were found killed by permethrin applications. Moreover, the number of non-target arthropods killed by permethrin at concentrations of 100 - 250 ppm (27.3 - 85.3 individuals/ground cloth) were signifcantly higher than that on control trees. These results demonstrated that despite high efficacy of permethrin in controlling of cocoa mirids (Hetopeltis spp.), its application also had adverse effects on non-target arthropods incocoa plantations.
THE PREFERENCES AND DISTRIBUTION OF SUGARCANE SCALE INSECT Aulacaspis tegalensis (HEMIPTERA: DIASPIDIDAE) ON DIFFERENT CLONES OF SUGARCANE Pramono, Sudi; Wagiman, Franciscus Xaverius; Trisyono, Yohanes Andi; ., Witjaksono
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 20 No. 1 (2020): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/j.hptt.12046-53

Abstract

This research was conducted in the field of Gunung Madu Plantations Co., Gunung Batin, Lampung Tengah, in the period of April 2015–May 2016. The experiment was arranged in a randomized completely block design with six sugarcane clones as treatments (GMP 1, GMP 2, RGM 99.370, RGM 97.8837, GMP 3, and GMP 4) and four blocks, every block was separated by the street. The abundance of sugarcane scale insects was observed in 15-day intervals from the plant ages of 4 to 12 months. The results showed that sugarcane clone affected the abundance of sugarcane scale insects. After a lag phase of six months (fifth observation), the sugarcane scale insects started being found on all six sugarcane clones in the field. The abundance of the scale insects then increased and peaked at 10.5 months. The sugarcane scale insects attacked all six clones of sugarcane. Clone GMP 1 was the most preferred with an average scale abundance at 814.4 individuals/stem while the least preferred clone was GMP 4 with average of 179 individuals/stem.
HOST MORTALITY, LETHAL PERIOD, TRANSMISSIBILITY, AND THRESHOLD DENSITY OF VERTICILLIUM LECANII – SCOTINOPHARA SP. MYCOSIS F.X. Susilo, Nyoman Mulyasari, Rozali, and Sudi Pramono .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 5 No. 2 (2005): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (143.745 KB) | DOI: 10.23960/j.hptt.2588-96

Abstract

Host mortality, lethal period, transmissibility, and threshold density of Verticillium lecanii – Scotinophara sp. mycosis. This study, conducted at Laboratory of Plant Protection Gading Rejo, Tanggamus-Lampung during March – October 2002, was aimed at determining the host mortality, lethal period, transmissibility, and threshold density of Verticillium lecanii – Scotinophara sp. mycosis generated from cadaver exposure and conidial spray in potted rice plants. The cadaver exposure was implemented by inoculating various levels of inoculum to different levels of host population while the conidial spray was done by spraying V. lecanii starter suspension or suspension of homogenized Scotinophara sp. cadavers to the host. After incubation, newly formed cadavers (new infections) were collected. The host mortality was expressed as percentage of the host number by inoculation technique while the lethal (infection) period was averaged from overall data (grand average) or from data sorted by inoculation technique. Transmissibility was taken to be the significant regression slope between new infections and potential contact while threshold density value was taken as the ratio between the inverse value of lethal period (numerator) and transmissibility (denominator). Results showed that the host mortality after exposure to 2 cadavers was significantly lower (1.7%) than that after exposures to 4 – 10 cadavers or after conidial sprays (10 – 25% range). The lethal period of the mycosis ranged from 5.2 to 15.8 days (no difference between inoculation techniques) while the disease transmissibility was 0.025 infection potential contact-1. The threshold density of the mycosis was 4.0 individuals of susceptible Scotinophara sp. rice plant-1. The fungus V. lecanii could be importance as a naturally-occurring biological control agent against Scotinophara sp.
EFEK PENYIMPANAN TERHADAP VIRULENSI NUCLEAR POLYHEDROSIS VIRUS YANG DIAPLIKASIKAN PADA TANAMAN KEDELAI TERSERANG ULAT GRAYAK (Spodoptera litura Fabr. ) Sudi Pramono .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 1 No. 1 (2001): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (47.516 KB) | DOI: 10.23960/j.hptt.1129-32

Abstract

One of the problem increased soybean production was Spodoptera litura (army worm), because army worm has been known to be resistant to many insec¬ticides. Alternatif control techniques should be explored to reduce population of the pest. Nuclear Polyhedrosis Virus (NPV) could storage one or more year, but must used technique cold storage so that not virulence decreased. This experiment was conducted to study (1) NPV patho¬genicity to army worm in the field, and (2) the effect of storage on the pathogenicity of NPV to S. litura. The research consisted of two experiments i.e. laboratory and field experiments. Each experiment had seven treatments arranged in a randomized completely block design. Each treatment was replicated four times. The results show the highest mortality of S. litura occurred in plot treated with 1,0 x 107 PIBs /ml, the mortality was 48 to 49,33 spec/plot after ten days aplicated . If comparative patogenicity the new and the old NPV was not significant. Population of army worm decreased significantly by NPV and control. So that patogenecity NPV storage one year as well as new NPV against army worm.
Co-Authors Hariri, Agus M I GEDE SWIBAWA, I GEDE Lestari Wibowo Rosma Hasibuan, Rosma Wagiman, Franciscus Xaverius Witjaksono . Y. Andi Trisyono