PENGARUH TEMPERATUR TERHADAP LAMA PENETASAN TELUR DAN MORTALITAS LARVA Spodoptera frugiperda J. E. SMITH

R. Arif Malik Ramadhan, Adinda Putri Amanda, Istia Siti Amalia, Sheli Mustikasari Dewi

Abstract


Spodoptera frugiperda is an invasive corn pest with high adaptability to various environmental conditions. This study aims to examine the effect of temperature differences on the ability of eggs to hatch and their suitability for first-instar S. Frugiperda larvae. The study used a completely randomized design with four treatments and five replications.  The four treatments tested were 34, 27, 19, and 13 °C. The results showed that a temperature of 27 °C was optimal for hatching S. frugiperda eggs. At 27 °C, the egg hatching time is shortest and the larval death rate is the lowest. A temperature of 34 °C speeds up hatching time but increases larval mortality, while lower temperatures (19 °C and 13 °C) slow down hatching time and even cause egg death. The results of this research concluded that temperature is a very important factor in determining the success of the life cycle of S. frugiperda. This information can be used to develop more effective pest control strategies, especially in the context of climate change, which causes significant temperature fluctuations.


Keywords


Climate change; Corn pest; Spodoptera frugiperda; Temperature

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