Lalat buah (Bactrocera spp.) merupakan salah satu hama utama pada tanaman hortikultura di dunia. Lebih dari seratus jenis tanaman hortikultura diduga menjadi inangnya. Pada populasi yang tinggi, intensitas serangannya dapat mencapai 100%. Penelitian ini bertujuan untuk mengidentifikasi spesies atau jenis lalat buah yang menyerang belimbing dan cabai serta menghitung intensitas serangan hama lalat buah terhadap belimbing dan cabai di Kecamatan Salahutu, Kabupaten Maluku Tengah. Penelitian dilakukan dengan metode survey di lapangan dengan mengumpulkan sampel buah belimbing dan cabai yang terserang lalat buah di tiga desa yaitu Desa Liang, Tulehu dan Suli, selanjutnya buah yang terserang dibawa ke laboratorium untuk di-rearing lalat buah. Lalat buah hasil rearing kemudian diidentifikasi dengan menggunakan CD Lucid dan CD Cabikey. Hasil penelitian menunjukkan 3 spesies lalat buah yang menyerang belimbing di Kecamatan Salahutu yaitu Bactrocera albistrigta, Bactrocera dorsalis dan Bactrocera carambolae, sedangkan yang menyerang cabai rawit ada dua spesies yaitu Bactrocera dorsalis dan Bactrocera carambolae. Intensitas serangan lalat buah pada belimbing termasuk kategori ‘Sedang’ sampai ‘Tinggi’ yaitu 30%-70%, sedangkan pada tanaman cabai rawit termasuk kategori ‘Sedang’ yaitu 41%-49%.Kata Kunci: Lalat buah, Identifikasi, Intensitas serangan
Choy sum (Brassica rapa L.) cultivation main obstacle in Maluku was soil fertility and plant diseases. Biological agent and Biofertilizers will play a significant role to reduce the intensity of disease attacks, and increase crop productivity. The objective of this experiment was to study the effects of nitrogen fixing and phosphate solubilizing microbe (Bion-UP) and Trichoderma harzianum solid inokulan (Bokelas Plus) on choy sum productivity grown on land Rhizoctonia solani-contaminated land. The experimental treatments were liquid biofertilizer and Bokelas Plus which has been combined into 6 treatments: Without biofertilizer and Bokelas Plus, 50 kg Bokelas Plus/ha without biofertilizer, 15 mL biofertilizer per plant without Bokales Plus, 15 mL biofertilizer per plant + 50 Kg Bokelas Plus/ha, 15 mL biofertilizer per plant + 25 kg Bokelas Plus/ha, and 7.5 mL biofertilizer per plant + 50 kg Bokales Plus/ha. The results showed that giving of Bokelas Plus and biofertilizer with different dose levels decreased leaf blight intensity and increasing fresh weight of choy sum. Biofertilizer application with and without Bokelas Plus decreased the intensity of leaf blight disease by 39.14% - 46, 93%, and increase the fresh weight of choy sum by 15.19% - 36.25%.
Improvement growth and yield of celery in a polybag with sand media needs fertilizer and growth hormones tostimulate plant growth. The aim of this study was to determine the effect Gandasil D and Atonik on the growth andyield of celery (Apium grafeolens L.) grown in sand in polybag. The experiment was arranged in FactorialRandomized Block Design to tested liquid fertilizer Gandasil D concentration (without and with 1.0 g/L, 1.5 g/Land 2.0 g/L) and growth hormone Atonik concentrations (without and with 1.5 mL/L, and 2.0 mL/L). The resultsshowed that only liquid fertilizer Gandasil D which showed a significant effect on the growth of celery.Application of Gandasil D at a concentration of 2.0 gwas/L the best concentration to increase plant height,number of tillers, leaf number and fresh shoot weight.
Efforts to increase crop production often faced difficulty with pests and diseases. The use of high yielding varieties can be an alternative control. This study aimed to determine the population and intensity of pest damage Plutella xylostella on five varieties of cabbage (Brassica oleraceae L.). The experiment was conducted in the village Waipirit in October 2012 until January 2013. The study was designed using a randomized block design with five treatments, namely cabbage as the Grand 11, KK-Cross, Green Coronet, Green Hero, and Investor. The results showed that Investors were varieties that were resistant to pests Plutella xylostella, indicated by low population groups such as eggs 2.75, 16.55 tails larvae and 1.95 tails pupae, and the low intensity of leaf damage 28.51% which was classified medium.
Biological decay agent is one threat should be anticipated when designing the building materials. This research is conducted to examine the composite plywood’s (comply’s) durability against drywood and subterranean termites’attacks. The veneers used are those made of Avocado (Persea americana), Mahogany (Swietenia mahogany) and Pine (Pinus merkusii) wood. Those three veneer types may be used to overlay the Oriented Strand Board’s (OSB’s) face and back part. The comply made then fed to both main biological decay agents in Indonesia, namely drywood termites (in the labouratory) and subterranean termites (grave yard test). The research results show that the comply’s durability is increasing against both drywood and soil termites respectively by 41.3% and 71.58%. This research shows that ME comply type (mahogany veneer, isocyanate adhesive) is the comply with the best durability against both biological decay agents’ attacks. This research result is expected to provide various benefits for material efficiency and energy conservation activity supports.
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