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Journal : bionature

Persentase Mortalitas Ulat Grayak Terhadap Pemberian Ekstrak Daun Bunga Pukul Empat Suryani, A.Irma; Hariani, Nova; Majid, Ahmad Fudhail; Risqa, Siti
bionature Vol 18, No 2 (2017): Oktober
Publisher : Fakultas MIPA UNM

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (298.044 KB) | DOI: 10.35580/bionature.v18i2.6140

Abstract

Abstract. Caterpillar grayak (Spodoptera litura) is one of the pests in various types of vegetable plants are polyphagous and have a wide range of hosts. One common way of controlling farmers to overcome Spodoptera litura attack is to use insecticide. The use of insecticides that are not rational will accelerate the occurrence of pest resistance against insecticides. An alternative is needed to develop biological products which are generally narrow-spectrum chemicals to target organisms. Flowers at four (Mirabilis jalapa) contain bioactive compounds that are toxic. M. Jalapa contains some secondary metabolite compounds such as saponins, flavonoids, tannins, and polyphenols. Based on the description above it is necessary to conduct a research to determine the percentage mortality of caterpillar grayak on giving the leaf extract at four o'clock flowers. The method used is leaf dipping methods and analysis with POLO-PC software. The results showed that 1.6% concentration of extract of M. jalapa can kill the number of larvae as much as 30 tails with a percentage of 75% within 48 hours. The LC50 value of mortality of M. jalapa extract on Spodoptera litura larvae was 0,507% (0,378-0,661 with p <0,05) with slope1,516 ± 0,318.Keywords: Bioinsecticides, Mirabilis jalapa, Spodoptera litura, Mortality 
Uji Hemaglutinasi Assay pada Hemolimf Spodoptera exigua yang diberi Perlakuan Botani Pestisida Suryani, A.Irma; Anggraeni, Tjandra
bionature Vol 20, No 1 (2019): April
Publisher : Fakultas MIPA UNM

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (285.943 KB) | DOI: 10.35580/bionature.v20i1.9758

Abstract

Abstract. The larval stage of the armyworm (Spodoptera exigua), has a high and polyphagous feeding activity so that these insects have the potential to be pests in agriculture. The use of botanical pesticides in this case Mirabilis jalapa, is expected to control agricultural pests so that research on the immune system of S. exigua larvae is carried out by observing lectins that play a role in analyzing foreign molecules that enter the insect's body. The results were obtained, the higher the M. jalapa concentration, at the concentration of M. jalapa 0.4% and 0.8%, the lower the hemolymf agglutination titers. This is thought to decrease the binding capacity of lectins to foreign molecules. So that M. jalapa has the potential to be used as an environmentally friendly botanical pesticide.Keywords: agricultural pests, botanical pesticides, lectin agglutination.
Pengaruh Penyuluhan Kesehatan Mengenai Penanganan Scabies Terhadap Masyarakat Kabupaten Takalar Sulawesi Selatan Idris, Irma Suryani; Suryani, A.Irma; Hiola, St. fatmah
bionature Vol 21, No 1 (2020): April
Publisher : Fakultas MIPA UNM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/bionature.v21i1.15056

Abstract

Abstract. Scabies disease or in society better known as scurvy is a parasitic infection of the skin caused by Sarcoptes scabei var hominis. The incidence of scabies in developing countries shows a cycle of fluctuation or increase. The distribution, prevalence, and infection of this parasitic skin disease depend on the area and population studied. This counseling was held in Takalar District with 15 respondents as being school teachers. Outreach results obtained knowledge of the increase in respondents' knowledge. The average proportion of knowledge before counseling was 60.83%, after counseling it increased to 92.22%.Keywords: Scabies, Counseling, Takalar
Vegetative Growth Response of Corn (Zea mays) Against Actinomycetes, Azospirillum, and Azotobacter from the Rhizosphere Neem (Azadirachta indica) Yusminah Hala; A.Irma Suryani; Octavia Cisiliana Devi
bionature Vol 24, No 1 (2023): April
Publisher : Fakultas MIPA UNM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/bionature.v24i1.44115

Abstract

This research is an experimental study that aims to determine the effect of the application of N2-fixing bacteria Actinomycetes, Azospirillum, and Azotobacter on the vegetative growth parameters of corn plants and on the nitrogen content of corn plants. Parameters for measuring the growth of corn plants include: formation rate of radicle length, plant height, number of leaves, leaf length, fresh weight of plants, fresh weight of plant roots, dry weight of plants, dry weight of plant roots, total N content in plants, as well as physical and chemical qualities of the ground. Experiments on the application of N2 -fixing bacteria on corn plants on a laboratory scale were carried out to determine the in vitro effect of microbes on corn seeds. The pot test was carried out to determine the effect of N2-fixing bacteria on the vegetative growth of corn plants in vivo. Data were analyzed using ANOVA with Duncan's test. The results showed that corn plants inoculated with Actinomycetes, Azospirillum and Azotobacter showed a significant different growth from corn plants without nitrogen fixing bacteria, namely formation rate of radicle length, plant height, number of leaves, leaf length, fresh weight, dry weight, total N content (%) of crops, and soil physical and chemical quality. It can be concluded that the inoculation of nitrogen-fixing bacteria in corn plants has a significant effect on plant vegetative growth parameters and plant nitrogen content.Keywords: Nitrogen fixing bacteria, Actinomycetes, Azospirillum, Azotobacter, Plant vegetative growth.