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All Journal AL KAUNIYAH Life Science Jurnal Abdimas Life Science
Niken Subekti
Universitas Negeri Semarang
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Materials Science & Nanotechnology Social Sciences

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Efektivitas Jenis dan Frekuensi Pemberian Sampah Organik terhadap Pertumbuhan dan Kualitas Biokonservasi Maggot BSF (Hermetia illucens). Mutiarani Kartika Dewi; Talitha Widiatningrum; Niken Subekti; Ning Setiati
Life Science Vol 12 No 1 (2023): May 2023
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/lifesci.v12i1.64137

Abstract

Organic waste is the type of waste that has the largest amount in Indonesia. If not managed properly, the organic waste can cause various kinds problem. One of the technologies to overcome this is by means composting using Black Soldier Fly (BSF) larvae. BSF larvae (maggot) has a better decomposition ability compared to organisms as well as other microorganisms. The aims of this research is to determine the most effective substarte that can affect the growth of black soldier larvae and the speed of bioconversion. This research is a quantitative descriptive study with an expreslanatory design. The study uses two variables (independent and dependent). Independent variables in this study are feeding frequency and type of organic waste as substrate. The dependent variables in this study are the speed ofbioconversion and the growth of black soldier larvae. The instruments used in this study are experiment research. The primary Data was obtained from 8 different composition and kind of organic waste. The analysis used is univariate analysis of variance using the SPSS 25.0 application. Results showed that restaurant waste is the most effective waste for reduction by black soldier fly larvae because it produces larvae with the best growth and the highest bioconversion rate among other waste.
Efficacy of Bacillus thuringiensis Biolarvicide and Temephos Synthetic Larvicides on Culex quinquefasciatus Larvae Niken Subekti; Citra Anisah Zahra; Anita Fadhila
Al-Kauniyah: Jurnal Biologi Vol 17, No 2 (2024): AL-KAUNIYAH JURNAL BIOLOGI
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v17i2.32788

Abstract

AbstractAn open environment with drainage and lush green grass around the hotel allows mosquitoes to breed. Mosquitoes from the genus Culex are one of the vectors for transmitting arboviruses and filariasis. Temephos is an active ingredient often used to control Culex quinquefasciatus and considered as environmental pollution. Therefore, it is necessary to develop environmentally friendly larvicides, such as the Bacillus thuringiensis biolarvicide. Many studies were conducted to control Aedes aegypti mosquito larvae using these microbial agents, but very little for controlling Cx. quinquefasciatus mosquito larvae. This study aims to compare the effectiveness of temephos and B. thuringiensis biolarvicides. Cx. quinquefasciatus larvae were divided into the insect sample group with temephos and the B. thuringiensis biolarvicide group at concentrations of 0.01, 0.02, and 0.03 mg/L. The number of dead larvae was calculated at 1, 2, 3, 4, 5, 6, and 24 hours. Data analysis was performed using probit analysis of lethal time (LT50 and LT90). From statistical analysis, B. thuringiensis as larvicides showed 100% mortality of mosquito larvae. B. thuringiensis biolarvicide can be used as a substitute for chemical larvicide since it is proven effective in killing Cx. quinquefasciatus mosquito larvae in 24 hours and is environmentally friendly.AbstrakLingkungan terbuka dengan sistem pembuangan dan rumput yang hijau di sekitar hotel memungkinkan nyamuk berkembang biak. Nyamuk dari genus Culex adalah salah satu vektor yang mengirimkan arbovirus dan filariasis. Temephos adalah bahan aktif yang sering digunakan untuk mengendalikan Culex quinquefasciatus dan dianggap mencemari lingkungan. Oleh karena itu, perlu untuk mengembangkan larvasida yang ramah lingkungan, seperti Bacillus thuringiensis biolarvasida. Banyak penelitian yang dilakukan untuk mengendalikan larva nyamuk Aedes aegypti menggunakan agen mikroba ini, tetapi sangat sedikit untuk mengendalikan larva nyamuk Cx. quinquefasciatus. Penelitian ini bertujuan untuk membandingkan efektivitas temephos dan B. thuringiensis biolarvasida. Larva Cx. quinquefasciatus dibagi menjadi kelompok sampel serangga dengan temephos dan kelompok B. thuringiensis biolarvasida pada konsentrasi 0,01, 0,02, dan 0,03 mg/L. Jumlah larva yang mati dihitung pada 1, 2, 3, 4, 5, 6, dan 24 jam. Analisis data dilakukan analisis waktu letal probit (LT50 dan LT90). Analisis statistik, B. thuringiensis sebagai larvasida menunjukkan 100% kematian larva nyamuk. B. thuringiensis biolarvasida dapat digunakan sebagai pengganti larvasida kimia karena terbukti efektif dalam membunuh larva nyamuk Cx. quinquefasciatus dalam waktu 24 jam dan ramah lingkungan.
Use of Independent System Animal Feed Lawn Mowing Machine at Sunan Gunungjati Ba'alawi Islamic Boarding School, Gunungpati Semarang Niken Subekti; Sonika Maulana; Rifa’atunnisa Rifa’atunnisa; Juhadi Juhadi; Fahrur Rozi; Heru Setyanto
Jurnal Abdimas Vol. 28 No. 1 (2024): June 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/yta75f49

Abstract

Farmer awareness in Cottage Sunan Gunung Jati Islamic Boarding School Ba'alawi Gunungpati Semarang city for improve quality and income in the group breeder . There are breeders in that environment just make feed cattle in a way traditional without use machine , then create a livestock group to be able to process it quality feed . The technological transformation developed is improve feed quality cattle using manufacturing technology machine enumerator grass . Machine manufacturing technology enumerator grass feed cattle For increase income, How breeder get tool cutter grass in accordance with need feed and energy efficiency . Machine manufacturing enumerator grass is a new innovative technology for downstreaming products resulting from the UNNES team's research. Service Team This much needed to support energy efficiency and upgrades coffee quality . Machine manufacturing technology enumerator grass , able to increase income breeders , improve feed quality and energy efficiency . Machine manufacturing enumerator grass is a new innovative technology for downstreaming products resulting from research by the Community Service team UNNES. During the activity, mentoring and monitoring and evaluation were carried out to measure target achievement.
Keanekaragaman Serangga dan Tingkat Kerusakan Akibat Serangan Hama pada Tanaman Jeruk Aura Tirsa Melinda; Dyah Rini Indriyanti; Priyantini Widiyaningrum; Niken Subekti
Life Science Vol. 13 No. 2 (2024): November 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/unnesjlifesci.v13.i2.10758

Abstract

Citrus are a horticultural commodity that has high economic value and tends to be liked by many people. In the Bawen area, Semarang Regency, there is a plantation that cultivates various types of orange plants. Many citrus plants have signs of pest attacks that have not yet been identified. This research aims to obtain data related to insect diversity and the level of damage caused by insect pest attacks on citrus plants. This research is an exploratory type of research, using a survey method. The research location was determined using purposive sampling by taking three fields of Siam Honey, Sumowono and Pamello oranges. Insect sampling was carried out using pitfall trap, yellow trap, direct observation and interviews. The results of the study showed that the diversity index was H' = 3.3, honey siam = 3.3, pamello orange (H' = 3.1) and sumowono siam (H' = 2.9). The similarity value of the three types of orange is 0.8 and the dominance is 0.05 (honey siamese), 0.06 (pamello) and 0.07 (sumowono). At the time of research, orange plants were in the generative phase so they could attract more insects. The level of damage due to pest attacks is classified as moderate. The conclusion of this research is that the highest species diversity value is Siam Honey, then Pamello orange and Siam Sumowono, the presence of insects is evenly distributed and no one species dominates. The benefit of this research is to obtain information regarding the diversity of insect types and the level of damage caused by insect pest attacks.
Co-Authors Anita Fadhila Aura Tirsa Melinda Citra Anisah Zahra Dyah Rini Indriyanti Fahrur Rozi Heru Setyanto Juhadi Juhadi Mutiarani Kartika Dewi Ning Setiati Priyantini Widiyaningrum Rifa’atunnisa Rifa’atunnisa Sonika Maulana Talitha Widiatningrum