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UJI PEMANGSAAN BERBAGAI SPESIES SEMUT (Solenopsis sp ; Oecophylla sp; Dolichoderus sp) TERHADAP HAMA PUTIH PALSU (Cnaphalocrocis medinalis) PADA TANAMAN PADI TAMRIN ABDULLAH; ITJI DIANA DAUD; KARTINI KARTINI
BIOMA : JURNAL BIOLOGI MAKASSAR Vol. 5 No. 2 (2020)
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/bioma.v5i2.10529

Abstract

AbstractAnts are important predators and are predicted to protect plants from pests if they are understood and researched properly. Ants belong to predatory insects because they are active and strong and prey on smaller, weaker insects. This study aims to determine the ant population approaching prey (pests in rice plants) and determine the time it takes for ants to find prey first. This research was conducted from September to November 2019 in the Labuangpatu Environment, Mappadaelo Village, Tanasitolo District, Wajo Regency. The results of this study indicate that the population size affects the speed of the ant species that can find prey where sooner or later the more population the faster the ant can find prey. Ant species Solenopsis sp is the most common ant species found in rice fields so it is easier to find prey. The speed at which ants find prey has no effect on the speed at which ants paralyze prey. The ant species Oecophylla sp is the ant species that most quickly paralyzes prey because its body is bigger than the prey and its behavior is very aggressive.Keywords: rice, predators, ants, Cnaphalocrocis medinalis Abstrak Semut adalah predator yang penting dan diprediksikan dapat melindungi tanaman dari hama jika dapat dimengerti dan diteliti dengan benar.  Semut termasuk kedalam serangga predator karena sifatnya aktif dan kuat serta memangsa serangga yang lebih kecil dan lemah. Penelitian ini bertujuan untuk mengetahui populasi semut yang mendekati mangsa (hama pada tanaman padi) dan mengetahui waktu yang dibutuhkan semut untuk menemukan mangsa pertama kali. Penelitian ini dilaksanakan mulai dari September-November 2019 di Lingkungan Labuangpatu, Kelurahan Mappadaelo, Kecamatan Tanasitolo, Kabupaten Wajo. Hasil penelitian ini menunjukkan bahwa jumlah populasi berpengaruh terhadap cepat atau lambatnya suatu spesies semut dapat menemukan mangsa dimana semakin banyak populasi maka semakin cepat pula semut dapat menemukan mangsa. Spesies semut Solenopsis sp adalah spesies semut yang paling banyak dijumpai di persawahan sehingga lebih mudah menemukan mangsa. Cepatnya semut menemukan mangsa tidak berpengaruh terhadap cepatnya semut melumpuhkan mangsa. Spesies semut Oecophylla sp adalah spesies semut yang paling cepat melumpuhkan mangsa dikarenakan tubuhnya yang lebih besar dari mangsa dan perilakunya yang sangat agresif.Kata kunci: padi, predator, semut, Cnaphalocrocis medinalis
Population Fluctuations of Scirpophaga innotata and Nilaparvata lugens In Various Varieties and Growing Age of Rice Plants Saipul Abbas; Itji Diana Daud; Sri Nur Aminah Ngatimin
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): January - March
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i1.4645

Abstract

Stem borer (Scirpophaga innotata) and brown planthopper (Nilaparvata lugens) are known as important pests in rice plants that attack plants from the nursery until just before harvest. Efforts to introduce new high-yielding varieties need to be carried out to provide farmers with references to varieties that are resistant or not to pest populations in the field. This study aims to look at the population levels of stem borer and brown planthopper pests at different planting ages for several test varieties. The method used was a randomized block design with 6 varietal treatments (IR14, IR15, IR16, IR18, IR19, IR20) and 3 tests with sampling intervals every week until 77 days after planting (HST). Data were analyzed using the Analysis of Variance (Anova) method and the Least Significant Difference Test (LSD). The results showed that the highest population of stem borers was found in plants aged 63 HST, namely 8 individuals/clump, while the lowest average population was found in plants aged 49 HST, namely 1 individual/clump. While the highest brown planthopper population was found at 77 HST, namely 10 individuals/clump, for the lowest population average at 63 HST, namely 4 individuals/clump. Populations of stem borer and brown planthopper in fact preferred rice variety IR14 with the highest population, while rice variety IR18 had the lowest population.