Tujuan penelitian ini adalah mengetahui respon pertumbuhan dan produksi tanaman cabai merah (Capsicum annum L.) di berbagai media tanam dan pemberian pupuk organik. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) Faktorial yang terdiri dari dua faktor. Faktor pertama adalah pemberian pupuk Tiens Golden Harvest (notasi H) terdiri dari 4 taraf, yaitu: Ho =  pupuk dasar,  H1 = 0,5 l/ha, H2 = 1 l/ha dan H3 = 1,5 l/ha.  Faktor  kedua adalah pemberian sekam padi dan arang  (notasi P) terdiri dari 3 taraf, yaitu: Po = 100 % tanah (sebagai kontrol), P1 = Tanah : Sekam Padi = 3 : 2 dan P2 = Tanah : Arang = 3 : 2. Parameter yang diamati dalam penelitian ini adalah:  tinggi  tanaman,  jumlah cabang, umur panen dan berat produksi per plot. Hasil penelitian menunjukkan bahwa perlakuan dosis pupuk Tiens Golden Harvest dapat meningkatkan tinggi  tanaman, jumlah cabang, berat produksi per plot, dan mempercepat umur panen. Perlakuan media tanam dengan penambahan sekam padi dapat lebih meningkatkan tinggi tanaman, jumlah cabang dan berat produksi per plot, tetapi tidak dapat mempercepat umur panen, dibandingkan dengan yang menggunakan penambahan arang. Interaksi antara dosis pupuk Tiens Golden Harvest dan media tanam berpengaruh tidak nyata terhadap semua parameter yang diamati.

Sensitivity of Larva Spodoptera litura Against the Density of Spores of Metarhizium anisopliae Fungi On the Red Onion Plant ", aims to determine the density of Metarhizium anisopliae spores which are effective in controlling the spodoptera litura pests that attack onion plants. This research was conducted by using Randomized Complete Random (RAL) Factorial ie instar larvae and spore density. The parameters observed were behavioral and morphological changes as well as percentage mortality of Spodoptera litura larvae. The results showed that: Changes in behavior and morphology of insects in the form of slow movement, decreased appetite and larval body surface covered by the fungus is light green and dark green. The density of spores of M. anisopliae to S. litura pest has a very significant effect on the percentage of S. litura mortality since the age of 1-9 HSA. The percentage of S. litura mortality tended to increase with higher spore density of M. anisopliae and instar 1-3 being more sensitive instar than instar 4-6 Spodoptera litura larvae. Mortality of S. litura is most prevalent in I1M3 treatment (instar 1-3 with spore density 106).

Effectiveness Kenikir and Betle Leaft Extraction as Biofungicide to Cause Disease Antraknosa (Colletotricum capsici) On Chili (Capsicum annuum) in In vitro. The research was done in the Laboratory Protection Plant Agriculture Faculty University of Medan Area, was held since Mei to July 2018. The research use Design Random Complete (RAL) Non Factorial with treatment F0 = negative control (PDA Media 100 %) F1 = Positive control (Synthetic fungicide 0.2%), F2 = 20% kenikir+ 10%betel, F3 = 30 % kenikir+ 10%betel,, F4 = 40% kenikir+ 10%betel, F5 = 20% kenikir+ 20%betel, F6 = 30 % kenikir+ 20%betel, F7 = 40% kenikir+ 20%betel, F8 = 20% kenikir+ 30%betel, F9 = 30% kenikir+ 30%betel, F10 = 40 % kenikir+ 30%betel. The results of the study: the tested extract of kenikir and betel leaf leaves showed the same results for inhibiting the growth of colony diameter and percentage of fungi growth.

Penelitian ini bertujuan untuk mengetahui respon pertumbuhan dan produksi tanaman cabai (Capsicum annum L.) di berbagai media tanam dan pemberian pupuk organik. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) Faktorial yang terdiri dari dua faktor. Faktor pertama adalah pemberian pupuk Tiens Golden Harvest (notasi H) terdiri dari 4 taraf, yaitu: Ho =  pupuk dasar,  H1 = 0,5 l/ha, H2 = 1 l/ha dan H3 = 1,5 l/ha.  Faktor  kedua adalah pemberian sekam padi dan arang  (notasi P) terdiri dari 3 taraf, yaitu: Po = 100 % tanah (sebagai kontrol), P1 = Tanah : Sekam Padi = 3 : 2 dan P2 = Tanah : Arang = 3 : 2. Hasil penelitian menunjukkan bahwa perlakuan dosis pupuk Tiens Golden Harvest dapat meningkatkan tinggi  tanaman, jumlah cabang, berat produksi per plot, dan mempercepat umur panen. Perlakuan media tanam dengan penambahan sekam padi dapat lebih meningkatkan tinggi tanaman, jumlah cabang dan berat produksi per plot, tetapi tidak dapat mempercepat umur panen, dibandingkan dengan yang menggunakan penambahan arang. Interaksi antara dosis pupuk Tiens Golden Harvest dan media tanam berpengaruh tidak nyata terhadap semua parameter yang diamati

Spodoptera frugiperda (Lepidoptera: Noctuidae) is a pest that boomed in early 2019. The research was conducted descriptively in areas that had never been attacked by S. frugiperda by planting various types of crops such as sweet corn, white corn, hybrid corn, green beans, tomatoes, chilies and sorghum. The results showed that S. frugiperda was very fond of sweet corn, followed by white corn, hybrid corn and sorghum. Green bean, chili and tomato plants were not attacked by S. frugiperda. Pest S. frugiperda began to attack sweet corn plants at 3 weeks after planting with the initial attack in the form of scratches on the leaves and continued to the base / growing point (leaves still curled). Even this pest also attacks the male flowers that have not opened and attacks the sweet corn cobs. S. frugiperda began to attack sweet corn at the age of 20.33 days after planting, on white corn 25.67 days after planting, hybrid corn 25.53 days after planting and sorghum at 28.67 days after planting. In sweet corn, the attack reached the corn cobs, while in white corn and hybrid corn, the attack only showed damage to the leaves, not to the cornflower as well as to sorghum. The percentage of attack on white corn (22.15%) and hybrid corn (18.26%) and on sorghum was only 10.34% less than attack on sweet corn (40.02%).