POPULASI TELUR, LARVA, DAN IMAGO SPODOPTERA FRUGIPERDA, SERTA KELIMPAHAN ARTROPODA PREDATOR SELAMA SATU MUSIM TANAM JAGUNG DI INDRALAYA, OGAN ILIR, SUMATERA SELATAN

IHSAN, FATKHUL and Herlinda, Siti (2020) POPULASI TELUR, LARVA, DAN IMAGO SPODOPTERA FRUGIPERDA, SERTA KELIMPAHAN ARTROPODA PREDATOR SELAMA SATU MUSIM TANAM JAGUNG DI INDRALAYA, OGAN ILIR, SUMATERA SELATAN. Undergraduate thesis, Sriwijaya University.

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Abstract

Spodoptera frugiperda is a pest that originates from the plains of America and spreads widely to Argentina. In 2016 for the first time this pest reached Africa, which at that time was feared to threaten European countries and in 2018 this pest began to enter the Asian continent. In the following year it was reported that it was found in maize fields in Sumatra, therefore this study aims to 1.) Determine the population of S. frugiperda eggs and larvae in cultivated land conventionally and without pesticides 2.) Determine the abundance of S. frugiperda predatory arthropods in the land. which is cultivated conventionally and without pesticides. This research was conducted in two farmers' fields in Tanjung Pering Village and one experimental field in the Department of Plant Pests and Diseases, Plant Protection Study Program, Faculty of Agriculture, Sriwijaya University from February to August 2020. This experiment used the census method by observing populations of predatory arthropods and document it with the camera. The next method is to take the sample by following a sampling in the shape of the letter W on corn plantations by counting the egg and larva population of S. frugiperda. Egg populations were found at the third week on conventional A land and at the third week it was found on conventional land B. On land without pesticides it was also found at the fifth week. In the second and sixth week of observations, conventionally cultivated land was not found because farmers sprayed synthetic insecticides on conventional A and conventional fields B. The lowest population occurred on land without pesticides because the population level of predatory arthropods did not die due to the application of synthetic insecticides. Larval populations in the second week of observation were not found on conventionally cultivated land because farmers sprayed synthetic insecticides on conventional A and conventional fields B. The lowest population occurred in fields without pesticides because the population level of predatory arthropods did not die due to the application of synthetic insecticides. The peak attack of Spodoptera frugiperda larvae occurred in the third week and began to decline due to differences in maize ages. The highest population of eggs, larvae, and imago S. frugiperda and arthropod predators in conventional land. Arthropods found from the order Araneae, Coleoptera, Hemiptera, Hymenoptera. The highest population of predatory arthropods was on conventional land A than conventional land B and land without pesticides. Meanwhile, the lowest predatory arthropods were in the fields without pesticides. On conventional land A and conventional B the highest population was from the Araneae family. In this observation, 6 species from the Araneae family were found. The conclusions of this study are as follows the population of eggs, larvae, and imago S. frugiperda in conventionally cultivated land was higher, while on land without pesticides was lower. The abundance of S. frugiperda preadator arthropods in conventionally cultivated land was higher, while in land without pesticides it was lower, this was due to the surrounding crop factor. Keywords: Spodoptera frugiperda, Maize, Predator Arthropods.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Spodoptera frugiperda, Jagung, Artopoda Predator.
Subjects:	S Agriculture > S Agriculture (General) > S1-(972) Agriculture (General)
Divisions:	05-Faculty of Agriculture > 54295-Plant Protection (S1)
Depositing User:	Users 9768 not found.
Date Deposited:	12 Jan 2021 06:28
Last Modified:	14 Jan 2021 03:19
URI:	http://repository.unsri.ac.id/id/eprint/39785

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