Judul: Tingkat serangan hama pada sistem agroforestry berbasis kopi studi kasus di Kecamatan Sumberjaya, Kabupaten Lampung Barat, Propinsi Lampung
Abstrak: Sebagian besar petani kopi di Sumberjaya telah menerapkan sistem agroforestry baik sistem agroforestry kopi sederhana maupun multistrata. Mereka menanam beberapa tanaman kehutanan dan beberapa tanaman lainnya di sela-sela tanaman kopi. Sistem agroforestry kopi multistrata umumnya menghasilkan penutupan tajuk yang cukup rapat dibandingkan dengan sistem agroforestry sederhana. Menurut pendapat petani penutupan tajuk yang rapat dapat mengurangi produksi kopi. Selain itu penurunan produksi kopi juga terjadi karena serangan beberapa jenis hama terutama penggerek buah kopi (Hypoyhenemus hampeii) dan penggerek cabang kopi (Xylosandrus sp.). Penelitian ini difokuskan pada serangan penggerek cabang kopi karena dapat mengakibatkan kematian cabang dan tidak mampu berproduksi. Hanya saja, pada penelitian ini tidak dapat dihitung kerugian akibat serangan penggerek cabang kopi karena dilakukan setelah musim panen.
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Judul: Identification of Pests and Diseases along with Their Control in  the Gayo Coffee (Coffea arabica) Agroforestry System in Central Aceh
Abstrak: Sistem agroforestri adalah sistem pengelolaan lahan yang mempertimbangkan aspek sosial, ekonomi dan ekologi. Kopi Gayo (Coffea arabica) merupakan komoditi utama masyarakat Desa Mude Nosar, Aceh Tengah dengan sistem yang digunakan adalah sistem agroforestri. Disisi lain, serangan hama dan penyakit k opi Gayo menyebabkan penurunan produktivitas dan penelitian terkait identifikasi hama serta penyakit pada sistem agroforestri kopi Gayo masih sangat terbatas. Tujuan penelitian ini adalah i) menganalisis komposisi, struktur, dan keanekaragaman vegetasi, ii) mengidentifikasi jenis hama dan penyakit pada Kopi Gayo dan penaungnya, iii) menghitung intensitas serangan hama dan penyakit pada sistem agroforestri k opi Gayo, serta iv) mengidentifikasi potensi pengendalian hama dan penyakit terpadu pada sistem agroforestri kopi Gayo di Desa Mude Nosar. Metode yang digunakan adalah purposive sampling dan analisis vegetasi serta menghitung serangan hama dan penyakit. Gejala serangan diidentifikasi di Laboratorium Patologi Hutan dengan melihat struktur makroskopis dan mikroskopis cendawan. Hasil penelitian menunjukkan bahwa rumput kerbau (Paspalum conjugatum) dan kopi Gayo secara berturut-turut mendominasi tingkat tumbuhan bawah dan pancang. Lamtoro (Leucaena leucocephala) mendominasi tingkat semai, tiang dan pohon. Keanekaragaman jenis (H’) tingkat semai dan tumbuhan bawah termasuk sedang dan tingkat pancang, tiang, dan pohon termasuk rendah. Struktur tegakan membentuk kurva J terbalik. Hama yang ditemukan adalah kutu loncat (Heteropsylla cubana) dan ulat jengkal (Hyposidra talaca). Penyakit yang ditemukan yaitu antraknosa dan karat daun. Intensitas serangan hama kutu loncat, penyakit antraknosa dan karat daun masing-masing dibawah 30%. Pengendalian hama dan penyakit pada sistem agroforestri kopi Gayo secara terpadu dengan pengelolaan agroforestri secara organik dengan pemanfaatan limbah kulit kopi dan kotoran ternak, serta dengan pemanfatan musuh alami. Musuh alami yang berpotensi yaitu Trichoderma harzianum, semut rangrang (Oecophylla smaragdina), dan laba-laba (Araneae)., Agroforestry is a land management system which considers social, economic and ecological aspects. Gayo coffee (Coffea arabica) is the main commodity which planted by local community of Desa Mude Nosar, Central Aceh using agroforestry system. On the other hand, Gayo coffee pests and diseases reduce the productivity and only a few studies have been undertaken to identify pests and diseases in Gayo coffee with agroforestry system. The study aimed to i) analyze the composition, structure, and diversity of vegetation, ii) to identify the types of pests and diseases in Gayo Coffee and its shade, iii) to calculate the intensity of pest and disease attacks on Gayo coffee in agroforestry system, and iv) to identify the potential of integrated pest control and disease in the Gayo coffee with agroforestry system in Desa Mude Nosar. The method used in this study was purposive sampling and vegetation analysis along with calculating pest and disease attacks. Symptoms of the attack were identified at Forest Pathology Laboratory by looking at the macroscopic and microscopic structures of the fungus. The results showed that rumput k erbau (Paspalum conjugatum) and Gayo coffee dominated the understorey and sapling levels. Lamtoro (Leucaena leucocephala) dominates the seedling, pole and tree stake. Species diversity (H') of seedlings and understorey levels was moderate and the level of saplings, poles, and trees was low. The stand structure forms an inverted J curve. The pests found were fleas (Heteropsylla cubana) and black looper (Hyposidra talaca).
Keyword: Agroforestry, Gayo coffee, Lamtoro, Agroforestry, Gayo coffe, Lamtoro

Judul: Durability of Specific Immunoglobulin (Ig) Y Againts Influenza and Covid-19 in Sunscreen
Abstrak: The benefit of specific immunoglobulin Y (Ig Y) as an active ingredient in personal care products such as sunscreen has not been properly studied. Our study aims to evaluate the reliability of specific IgY against influenza and the COVID-19 virus in a sample sunscreen product. Specific IgY influenza and COVID-19 viruses were inserted in the sample sunscreen at two concentrations of 0.1% and 0.25%. Three treatments were observed: control (C) sunscreen without IgY, treatment 1 (T1) sunscreen with 0.1% IgY, and treatment 2 (T2) sunscreen with 0.25% IgY. Organoleptic observations were carried out to monitor changes in aroma, color, and texture, and sunscreen sampling was done every week for 6 weeks. The durability of IgY was evaluated using an enzyme-linked immunosorbent assay (ELISA) and a neutralization assay. Organoleptic observation from weeks 1 to 6 showed consistency in its aroma, color, and texture. Enzyme-linked immunosorbent assay and neutralization assay (NA) results of the T1 and T2 groups showed negative results except for sample T1 at week 5, which showed a positive result in the Influenza A ELISA. Based on the results, it seems that IgY concentrations of 0.1% or 0.25% were not optimal. However, this negative result might be due to low concentration of the IgY and the presence of beeswax, which inhibits IgY and causes it to dissolve in distilled water, thus preventing it from being detected in the assay.
Keyword: Immunoglobulin Y, Sunscreen, Influenza, COVID-19, Biological Activity