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All Journal Nusantara Science and Technology Proceedings
Penta Suryaminarsih
Agrotechnology Study Program, Faculty of Agriculture, Universitas Pembangunan Nasional “Veteran” Jawa Timur, Surabaya 60294, Indonesia
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology

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Prospects of Biological Control of Green Ladybugs (Nezara viridula) Using Streptomyces spp. Laksamana Agadhia Raharjo; Penta Suryaminarsih; Dita Megasari
Nusantara Science and Technology Proceedings Sains dan Teknologi Pertanian Modern
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2021.1504

Abstract

Ecosystem damage due to the use of chemical pesticides increases every year, therefore alternative searches need to be known and developed. APH (Biological Control Agency) is a beneficial microbe that can control pest and disease populations. Streptomyces spp. Is a gram-positive soil bacterium that can be used against green ladybugs because Streptomyces spp. Able to produce chitinase enzymes that can break down chitin compounds in Exo – Skeleton Arthropod animals The purpose of this study was to determine the prospects for the use of Streptomyces spp. as APH of green shieldbugs.The description of this article includes: research results of Streptomyces spp., morphology, bio-ecology and bio-molecular green shieldbugs (Nezara viridula), as well as prospects for the use of Streptomyces spp. the results show that the use of Streptomyces spp. is able to control green ladybugs, because the chitinase enzyme produced can break down the chitin compound.The development of Streptomyces spp. has a lot of space, developments in the production of chitinase enzymes can be implemented and have clear potential.
The Effectiveness of Vegetable Neem Leaf Pesticides Against Purple Spot Disease on Onion Plants in The Rain Season Serlia Nur Abifah; Penta Suryaminarsih; Juniawan
Nusantara Science and Technology Proceedings Seminar Nasional Agroteknologi 2022
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3114

Abstract

Purple spot disease is one of the main diseases in leaf onion cultivation. One form of control is carried out by utilizing neem plants, especially the neem leaves which have the potential as vegetable pesticides (fungicides). This study aims to determine the effectiveness of neem leaf vegetable pesticide and to obtain the right concentration of neem leaf vegetable pesticide in controlling purple spot disease on a leaf in rainfall season. This study used an experimental method designed in a single factor Completely Randomized Design (CRD) using neem leaf pesticide consisting of three treatments (control, 10%, and 20%). The results showed that neem leaves at a concentration of 20% were effective as a vegetable pesticide to control purple spot disease on leaf onion. Neem leaf vegetable pesticides at a concentration of 20% were able to inhibit the increase in the area of attack symptoms and also inhibit the intensity of purple spot disease attacks on leaf onion by 13.84%. This is caused by the increase in concentration causing an increase in the content of the active ingredient in the substance which functions as a pesticide that is able to inhibit the spread of large quantities.
Co-Authors Dita Megasari Juniawan Laksamana Agadhia Raharjo Serlia Nur Abifah