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All Journal Sultra Civil Engineering Journal (SCiEJ) Jurnal Proteksi Agrikultura
Ardika, Made
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Transportation

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Analysis Of Work Delay In Slum Quality Improvement Project Puday-Lapulu Ardika, Made; Sufrianto, Sufrianto; Hujiyanto, Hujiyanto; Hawa, Sitti
Sultra Civil Engineering Journal (SCiEJ) Vol 4 No 1 (2023): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54297/sciej.v4i1.461

Abstract

A construction project is an activity that aims to build facilities and infrastructure within the planned timeframe. The project can be defined as an organized effort or activity that uses the available budget and resources that must be achieved to achieve important goals, objectives, and expectations using the existing budget and resources, which must be completed within the planned timeframe so that the project does not experience delays. The purpose of this study was to determine how much work delays, the factors that cause work delays and how much influence the delay factors have on work delays in the Puday- Lapulu Slums Quality Improvement Project. The results of this study indicate the value of SV is Rp. (- 8.25 %) While the value of SPI < 1 is 0.896 < 1, based on the criteria for the value of SV and SPI, it can be said that the work is late and has poor performance. Factors that influence delays are aspects of labor and materials. While the large influence of delay factors on work delays that is 10,9 %.
Potensi produk komersial berbahan aktif Beauveria bassiana sebagai agensia pengendalian Oryctes rhinoceros Ardika, Made; Fitriana, Yuyun; Suharjo, Radix; Purnomo, Purnomo
Jurnal Proteksi Agrikultura Vol. 1 No. 1 (2024): MAY, JURNAL PROTEKSI AGRIKULTURA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpa.1128-33

Abstract

The rhinoceros beetle, Oryctes rhinoceros, is a major pest on coconut and oil palm plants, attacking both in replanting areas and directly in farmers' fields. The O. rhinoceros beetle (Coleoptera: Scarabaeidae) holds the most important position as a pest of coconut plants, both in terms of its damaging ability, distribution, population stability, and year-round population size, and is widely recognized by coconut farmers. The use of microorganisms as biological agents is part of biological control efforts. One biological agent widely used as a bioinsecticide and proven to be quite effective is the entomopathogenic fungi group, such as Beauveria bassiana. The objectives of this research are as follows: 1). To determine the ability of a commercial product containing B. bassiana as an active ingredient to cause mortality in O. rhinoceros larvae; 2) To identify the effective dose that can cause high mortality in O. rhinoceros. This study used a Completely Randomized Design (CRD) with five treatments tested, namely: P1: 37.5 g B. bassiana; P2: 28.13 g B. bassiana; P3: 18.75 g B. bassiana; P4: 9.38 g B. bassiana; P5: control. Each treatment was repeated five times, and each replicate consisted of five samples, resulting in 25 experimental samples or a total of 125 O. rhinoceros larvae. Further analysis was conducted using the LSD test at a 5% significance level. Based on the research results, the commercial product containing B. bassiana as an active ingredient was able to cause mortality in O. rhinoceros. The most effective dose for controlling O. rhinoceros larvae was treatment 3, with a dose of 18.75 g, yielding an average mortality rate of 72%.
Co-Authors Hawa, Sitti Hujiyanto, Hujiyanto Purnomo Purnomo Radix Suharjo Sufrianto, Sufrianto Yuyun Fitriana