Abstract
Rice (Oryza sativa L.) is an annual crop that plays an important role in meeting the food sources of the Indonesian population. In addition, rice plants have a diversity of insects as their natural enemy. This study aims to determine the population of natural enemies of 3 rice varieties, namely Inpari 30, Ciliwung, and Mekongga varieties. The research location is the rice fields in Turikale Subdistrict, Maros District. The method used for the study was the survey location of rice fields with each paddy field size of about 20 x 15 m. The results showed that there were 3 types of predators namely Lycosa, Coccinella, and Orthetrum which were found in each variety with varied total numbers at every 2-week observation interval. The highest population of Lycosa was found in the Inpari 30 (6 wap) variety, the highest Coccinella population also was found in the Inpari 30 (10 wap) variety, while the highest Orthetrum population was found in the Mekongga variety (6 wap). The highest proportion of each variety was Lycosidae 50% in the Inpari 30 variety, Lycosidae 51.35% in the Ciliwung variety, and Lycosidae 44.44% in the Mekongga variety
Highlights
Rice (Oryza sativa L.) is a food crop that is the main food source for the Indonesian population
It is necessary to conduct research to determine the population of natural enemies from the three varieties of rice plants namely Inpari 30, Ciliwung, and Mekongga variety
Each rice field plot was determined with a size of 20 x 15 m and divided into 3 sub-plot observations which were spread with each 10 plants of each cluster
Summary
Rice (Oryza sativa L.) is a food crop that is the main food source for the Indonesian population. One of the solutions in controlling pests in IPC is to utilize natural enemies. The natural enemies that inhabit rice plantations are very diverse and can be used to suppress pest populations if managed properly (Acep, 2015). Control by biologically utilizing natural enemies is the work of biotic factors such as parasitoids, predators, and pathogens to prey or host, so as to produce a general balance that is lower than the conditions indicated if the factor is absent or does not work (Bach, 1979; Stern, 1959). It is necessary to conduct research to determine the population of natural enemies from the three varieties of rice plants namely Inpari 30, Ciliwung, and Mekongga variety. This study was aimed to explore and discover the natural enemy existence of these three rice varieties, namely Inpari 30, Ciliwung, and Mekongga variety
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