Rifky Fauzi, Zunanik Mufidah, Gres Maretta, Tiara Shofi Edriani, Nela Rizka, Utriweni Mukhaiyar, Riani Utami, Sri Haryani, Saefudin, Amalia Styaningrum, Edy Soewono
Pests in sugarcane plantations are a major cause of damage, which could lead to severe damage to the crop, reduction of sugar quality, and significant economic loss. One of the major pests known in sugarcane plantations is stem borer (Chilo sacchriphagus), which attacks the canes. Two primary parasitoids, Trichogramma chilonis, which predates the stem borer eggs, and the Jatiroto fly (Diatraeophaga striatalis), which predates the stem borer larvae, are discussed here. This paper presents a time-dependent ten-dimensional dynamical mathematical model consisting of four-stage stem borer compartments, three-stage Trichogramma compartments, and three-stage Jatiroto compartments. Simulations are presented to describe the phenomenon of Trichogramma predation, Jatiroto predation, and simultaneous predation of both predators. It is shown that the release rate of each predator and a combined release of two predators can significantly reduce the infestation levels to a tolerable level for sugarcane production. The oscillatory dynamics of the stem borers and the Jatiroto flies affected the release timing strategy based on the level of infestation in the field. The results are expected to help us better understand the predator-prey phenomenon in the field and improve the forecasting of infestations in the field. © 2024 Published by ITB Institut for Research and Community Service.
Department of Mathematics, Faculty of Science, Institut Teknologi Sumatera, Jalan Terusan Ryacudu, Lampung Selatan, Lampung, 35365, Indonesia; Department of Biosystem Engineering, Institut Teknologi Sumatera, Lampung, 35365, Indonesia; Department of Biology, Faculty of Science, Institut Teknologi Sumatera, Lampung, 35365, Indonesia; Department of Mathematics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha No. 10, Jawa Barat, Bandung, 40132, Indonesia; PT. Gunung Madu Plantation, Jalan Soekarno Hatta Km 7, Gg. Multi, Ketapang Panjang, Bandar Lampung, Lampung, 35245, Indonesia; Center for Mathematical Modeling and Simulation, Institut Teknologi Bandung, Jawa Barat, 40132, Indonesia
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