Produktivitas Sawi (Brassica juncea L.) di Indonesia mengalami peningkatan pada tahun 2015-2018, sejalan dengan peningkatan kebutuhan masyarakat akan sayuran ini. Salah satu hambatan dalam budidaya sawi yaitu serangan hama perusak daun. Solusi altenatif untuk mengendalikan hama yaitu menggunakan bahan alami dari tumbuhan galam (Melaleuca cajuputi Roxb.). Tujuan penelitian ini untuk melihat pengaruh insektisida daun galam untuk menekan hama perusak daun pada tanaman sawi. Penelitian menggunakan ekstrak daun galam segar sebagai bahan utama pembuatan insektisida nabati, yang diaplikasikan dengan berbagai dosis. Penelitian bertempat di pertanaman sayuran Kelurahan Guntung Payung Kecamatan Loktabat Utara Banjarbaru dan dilaksanakan selama 40 hari dari penyemaian sampai panen. Penelitian ini menggunakan metode percobaan dengan Rancangan Acak Lengkap (RAL) satu faktor yang terdiri dari 5 perlakuan konsentrasi dan 2 kontrol dengan 4 ulangan. Hasil penelitian menunjukan berpengaruh sangat nyata untuk intensitas serangan hama pada pengamatan ke 4. Intensitas serangan hama perusak daun sawi dari yang tertinggi sampai yang terendah berturut-turut ditunjukkan oleh perlakuan Kontrol air (K) sebesar 26,6%, Ekstrak daun galam 10% (G5) 21,3%, Ekstrak daun galam 6% (G3) 20,5%, Ekstrak daun galam 8% (G4) 17,7%, Ekstrak daun galam 2% (G1) 15,3%, Ekstrak daun galam 4% (G2) 14,2% dan Kontrol kimia (M) 7,9%.
Cabai merah besar (Capsicum annuum L.) merupakan komoditas yang sangat dibutuhkan, khususnya dalam industri makanan dan kebutuhannya sering meningkat. Kebutuhannya yang meningkat tersebut berbanding terbalik dengan ketersediaan cabai yang tidak dapat terpenuhi. Penyebabnya antara lain adanya kendala serangan lalat buah (Bactrocera spp.) yang selalu terjadi pada tanaman cabai. Gejala yang ditimbulkan berupa adanya lubang kecil pada buah cabai, buah rontok dan terdapat larva di dalam buah. Pengendalian yang sering dilakukan adalah dengan menggunakan insektisida kimia yang dapat mengakibatkan pencemaran lingkungan. Salah satu solusinya adalah dengan pemanfaatan tanaman refugia. Penelitian ini dilakukan untuk mengetahui pengaruh tanaman refugia terhadap serangan lalat buah pada tanaman cabai dan efektifitasnya tanaman kenikir (Cosmos caudatus) dan marigold (Tagetes erecta L.) dalam menekan serangan lalat buah pada tanaman cabai. Rancangan yang digunakan adalah Rancangan Acak Kelompok (RAK) dengan 4 perlakuan, kontrol (T0), tanaman kenikir dan marigold ditanam bersama cabai (T1), tanaman kenikir ditanam bersama cabai (T2), tanaman marigold ditanam bersama cabai (T3) dan diulang sebanyak enam kali. Hasil pengamatan, tanaman refugia berpengaruh terhadap serangan lalat buah. Tanaman refugia jenis marigold, intensitas serangan lalat buah mencapai 6,01% dan 19,30%, sedangkan jenis kenikir intensitas serangannya mencapai 13,61% dan 33,61%.
Oryza sativa L. can be called an important commodity because it is used as a staple food. Farmers in cultivating rice expect high yields, but there are obstacles that cause yields to decline, namely the attack of the Brown Stem Planthopper (BSP) (Nilaparvata lugens Stal.) which can lead to crop failure. Farmers controlling N. lugens still use insecticides. Control by using insecticides is known to have a negative impact on users and the environment and can cause resistance, resurgence and residue. One of the safe controls is the use of Beauveria bassiana as an entomopathogenic fungus. This study was conducted to determine the effectiveness of B. bassiana cultured on various media in controlling WBC attacks. The design used was a Completely Randomized Design (CRD) with 6 treatments, namely control treatment without B. bassiana, control with B. bassiana grown on PDA media, B. bassiana grown on corn media, and B. bassiana growing on media. grown on rice media, given B. bassiana grown on bran media, given B. bassiana grown on husk ash and repeated 4 times. Observations were made after one application by observing mortality (mortality) every 24 hours for 7 days. The results of the observation that the highest mortality percentage was found in the corn media treatment reaching 47.50%, rice media 40%, bran media 18.75% while the lowest was found in the husk media, namely 15%.
The dominance of water lettuce as one of the wetland weeds can cause a decrease in biodiversity in an ecosystem. Spodoptera pectinicornis can be a biological control agent for these weeds but requires a mass multiplication stage, so it is necessary to research feedstock in their augmentation. The research aimed to study the preferences and survival abilities of larvae S. pectinicornis to three forms of feed preparation made from water lettuce leaves. The research method had carried out in 2 stages (1) feedstocks form; an extracted water lettuce, mashed and cut into pieces (2) the addition of nutrients and preservatives to feedstocks. Observations had been made on the preferences and ability of the larvae to survive. The results showed that the larvae of S. pectinicornis had a preference and could survive on cut water lettuce feedstock, while in extracted and mashed died. The addition of nutrients and preservatives to the cut-up feed turned out to cause the larvae to stay away from the feed preparation and eventually die. Based on these, larvae S. pectinicornis only prefer to eat the feedstock in cutting form than enrich it with nutrients and preservatives.
Penelitian jarak tanam dan penggunaan pupuk organik cair (POC) terhadap intensitas kerusakan hama daun dan hasil panen pada tanaman pakcoy telah dilakukan. Penelitian ini bertujuan untuk menganalisis intensitas kerusakan hama daun dan hasil panen pada tanaman pakcoy yang diberikan perlakuan jarak tanam dan POC. Metode penelitian yang digunakan merupakan metode percobaan (eksperimen), yang dilakukan di lapangan, dengan Rancangan Acak Lengkap (RAL) faktorial dengan dua faktor. Faktor pertama adalah jarak tanam dan faktor kedua adalah konsentrasi pupuk organik cair. Hasil penelitian menunjukkan intensitas serangan hama pada umur 16 HST yang paling besar ditunjukkan pada perlakuan jarak tanam 15 x 20 cm dan konsentrasi POC 30.000 ppm yaitu sebesar 8,80% dan intensitas serangan hama pada umur 22 HST yang paling besar ditunjukkan pada perlakuan jarak tanam 10 x 20 cm dan konsentrasi 60.000 ppm yaitu sebesar 8,02%.
Red chili (Capsicum annuum L.) is a commodity that has high economic value, but the potential loss experienced in chili cultivation is also quite high, because chili is quite vulnerable to fruit fly pests. This study aims to determine the response of fruit flies to the use of pheromones derived from various kinds of fruit peels and flesh added with yeast (organic pheromones). This research took place on chili farmers' land located in the village of Tambak Langsat, West Ulin Platform, Banjarbaru City. This study used a randomized block design (RBD) with 11 treatments including the control. The results showed that the treatment given organic pheromones was able to trap fruit flies. Of all the pheromones that were most effective at getting lots of fruit flies was the chili pheromone (0.2 ml) with a catch of 25 individuals and for organic pheromones that were less effective was the mango pheromone (0.2 ml) with a catch of 4 individuals. The type of fruit fly B. dorsalis dominates of the four species with the Diversity Index (H´) of fruit flies being classified as moderate, namely 1.1082, the Dominance Index (D) being high 1 and for fruit flies dominating B. dorsalis.
Research on the life cycle and life balance of Spodoptera frugiperda (J. E Smith) has been conducted from September to November 2021 at the Entomology Laboratory of the Department of Pests and Plant Diseases ULM Banjarbaru. The results showed that S. frugiperda underwent changes from egg, larva, pupa and imago stages. This change is called complete metamorphosis. The average number of eggs produced is 45.14 eggs with an egg stage of 7 days, the larval stage has 6 instars, each time span (days) ranges from 2.4 to 3.4, the pupal stage is 7.5 days and the imago stage with brown wings. The male imago has a distinctive pattern while the female imago does not have a distinctive pattern. Imago male with a vulnerable time of 8 days while the female imago 9 days. From the life table, it is known that the GRR value is 316 individuals/generation, the R˳ value is 115.916 individuals/parent/generation, the T value is 30,197 days, the r value is 0.157 individuals/parent/day and the value is 1,170 individuals/parent/day.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.