between whitefly (Bemisia tabaci) population and pepper yellow leaf curl disease on chili plant yield in the field.
Exposure to synthetic chemicals for plant pest organisms (OPT) is the main choice for farmers. One alternative pest control is planting refugia plants. Refugia plants can attract beneficial insects and antagonistic agents to come to the plant. Furthermore, it can control the pest population naturally. The purpose of the service is technical guidance on the application of refugia technology in cayenne pepper cultivation. The method used is technical guidance and the manufacture of demonstration plots of chili plants using refugia plants. The comparator is the chili plant which is not refugia. The results showed that the application of synthetic chemicals was lower in chili plants that plant were given refugia than those that were not. The average growth height and the number of pepper branches that were given refugia were higher, and the visit of insect pests was lower than the control. Partners accept the refugia technology because it reduces the number of applications of synthetic chemical pesticides
Penyakit daun keriting kuning pada pertanaman cabai di Sulawesi Tenggara telah dilaporkan sejak tahun 2018, yaitu di Kabupaten Kolaka Timur dan Kota Kendari. Gejala penyakit di lapangan semakin meluas seiring dengan perluasan penanaman cabai. Penelitian bertujuan menghitung kembali insidensi penyakit daun keriting kuning pada pertanaman cabai di Sulawesi Tenggara, mengidentifikasi serangga yang berasosiasi dengan tanaman cabai, dan mengidentifikasi penyebab penyakitnya. Pengamatan insidensi penyakit dilakukan di pertanaman cabai yang berada di Kabupaten Bombana, Konawe Selatan, Konawe, Kendari, Kolaka Timur, Kolaka, dan Kolaka Utara. Identifikasi kutukebul dilakukan berdasarkan karakter morfologi. Deteksi dan identifikasi begomovirus menggunakan metode polymerase chain reaction, yang dilanjutkan dengan analisis sikuensing. Rata-rata insidensi penyakit daun keriting kuning di tujuh kabupaten ialah 36%–90%. Spesies kutukebul yang ditemukan adalah Aleurotrachelus trachoides. Fragmen DNA spesifik begomovirus berukuran 580 pb berhasil diamplifikasi dari sampel tanaman cabai asal tujuh kabupaten di Sulawesi Tenggara. Analisis sikuen mengonfirmasi infeksi Pepper yellow leaf curl Indonesia virus pada pertanaman cabai di Kabupaten Kolaka, Kolaka Utara, Bombana, Konawe, dan Konawe Selatan.
Cashew plant is the one of export commodity that has high economic value compared to the other commodities. Sanurus indecora is one of major pest in cashew, causing decreased quality and quantity of products. The aims of this experiments were to the develop integrated pest management of S. indecora, by: (a) utilization and enviroment manipulation of cashew plantation using intercropping plants to control S. indicora, (b) utilization of natural enemies, specially Synnematium sp., to control S. indecora. The experiment consisted of : (1) the effect of intercropping plant extracts as botanical pesticide on S. indecora mortality at laboratory, (2) the effect of medium substances on Synnematium sp. growth, as well as the effect of concentration of Synnematium sp. suspension on S. indecora mortality at laboratory. Botanical pesticides that were used in this experiment was made from extraction of intercropping plants: extraction of sesame seed, of cassava leaves and pineapple fruit. All experiments were arranged in complete randomized design. The results showed that 0.5 mg/10 mL water of sesame seed extract, 0.1 mg/10 mL water of cassava leaves extract and 2.0 mg/10 mL pineapple fruit extract concentrations resulted average 76.67%, 66.67%, and 63.33% S. indecora mortalities at 24 hours after application, respectively. The second experiment showed that the growth medium containing rice straw resulted the best growth of Synnematium sp. colonies than the other treatments and 0.1 g/mL water of Synnematium sp. mycelium resulted the high mortality (57,5%) at 5 days after application.
Penelitian ini bertujuan untuk mengevaluasi respon tiga kultivar ubi jalar (Ipomea batatas L.) terhadap hama boleng (Cylas formicarius). yang dilaksanakan di Laboratorium Proteksi Tanaman, Fakultas Pertanian, Universitas Halu Oleo yang berlangsung pada Oktober 2021 sampai Februari 2022. Penelitian disusun berdasarkan Rancangan Acak Lengkap (RAL) dengan menggunakan tiga perlakuan dan setiap perlakuan diulang sembilan kali. Perlakuan Kultivar Helaleke, Kultivar Cilembu dan Kultivar Antin. Variabel yang diamati yaitu severitas (tingkat keparahan), populasi larva, pupa dan Imago, persentase kehilangan berat. Hasil penelitian menunjukkan bahwa ketiga kultivar ubi jalar yaitu Cilembu tingkat keparahan sebesar 23,61%, populasi larva, pupa dan imago (41,56; 39,00; 44,44 individu), persentase kehilangan berat yaitu 17,22% termasuk kategori agak tahan, Helaleke, tingkat keparahan 53,43%, poulasil larva, pupa dan imago (69,89; 62,22; 9,33 individu), persentase kehilngan berat yaitu 24,44% termasuk kategori peka, diikuti Antin dengan tingkat keparahan 45,83%, populasi larva, pupa dan imago (59,33; 51,89; 6,78 individu), persentase kehilngan berat yaitu 21,67% agak peka. Berdasarkan hasl penelitian dianjurkan untuk menanam kultivar Cilembu, untuk mereduksi serangan hama boleng walaupun dari ketiga kultivar yang diteliti tidak dietmukan kultivar yang tahan terhadap hama boleng
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