ARTHROPODA PREDATOR PADA TAJUK DAN TANAH DI SAWAH YANG DIAPLIKASIKAN BERBAGAI DOSIS BIOINSEKTISIDA Beauveria bassiana (Bals.)Vuill.

HADISA, YURA TRI and Herlinda, Siti and Suparman SHK, Suparman SHK (2016) ARTHROPODA PREDATOR PADA TAJUK DAN TANAH DI SAWAH YANG DIAPLIKASIKAN BERBAGAI DOSIS BIOINSEKTISIDA Beauveria bassiana (Bals.)Vuill. Undergraduate thesis, Sriwijaya University.

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Abstract

Rice (Oryza sativa L) is an important commodity in Indonesia. One of the obstacles in rice cultivation comes from pests. To control the pests, farmers tend to use chemical insecticides which may cause various bad impacts to human and environment. Therefore, we need other alternatives, and one of the alternatives by using entomopathogenic fungi, such as Beauveria bassiana. Predatory arthropod living in paddy field ecosystem play important roles in suppressing rice pests. The purpose of this study was to determine the influence of the application of various doses of biological pest control of B. bassiana against the abundance and diversity of species of predatory arthropods in main rice and ratoon rice. Methods this study used a Randomized Design methods Group (RAK) with 5 treatments and 5 replicates with the treatments to be tested i.e. A: control (dosage 0 L.ha-1), B: BB (dosage 1 L.ha-1), C: BB (dosage 2 L.ha-1), D: BB (dosage 3 L. ha-1), and E: commercial BB. The main rice season observed starting age 2 to 11 weeks after transplanting (wat), but at the moment the ratoon rice observations made at the time of 2 to 7 weeks after harvesting (wah). For observations of arthropods predator heading using nets, sticky trap, and direct observation. While the observations of soil arthropods predator using the trap hole. Observations on the main rice predatory arthropods heading in rice 3 wat, the number of individual predatory arthropods were observed using a net decline in the number of individuals occurring arthropod predators than on controls without biological pest control. At the treatment BB 3 L.ha-1 number of individuals arthropods predator is only 1 tail of the double swing that does not different markedly with BB 1 L. ha-1, BB 2 L. ha-1, and commercial BB. Rice at the age of 2, 5, 7, 9, and 11 wat amount of individual predatory arthropods do not experience a significant decline. At the age of 2 wat amount of individual predatory arthropods were observed using trapping pits decline number of individual predatory arthropods than on commercial BB. On the treatment of different commercial real with treatment BB 0 L.ha-1, BB 2 L.ha-1, and BB 3 L. ha-1 but do not different markedly with BB 1 L. ha-1. Rice at the age of 3, 5, 7, 9, and 11 wat amount of individual predatory arthropods do not experience a significant decline. At the age of 2 to 11 wat amount of individual predatory arthropods were observed through the sticky trap do not experience a decrease in the number of individuals that demonstrated different predatory arthropods with biological pest control without treatment, BB 1 L. ha-1, BB 2 L. ha-1, BB 3 L.ha-1, and commercial BB. Similarly on direct observation, arthropod predators number of individuals do not experience a significant decline. Observations on the rice heading predatory arthropods ratoon rice aged 2, 3, 5, and 7 wah through observations of the net, the number of individual predatory arthropods do not experience a significant decline. Similarly, with the number of individuals observed predatory arthropods through hole traps, sticky trap, and direct observation, arthropod predators number of individuals do not experience a significant decline. The research indicates that the application dose of biological pest control 1, 2, 3 L ha-1 which has a density of 109 x 6.32 spores spores/ml, and biological pest control-commercial active B. bassiana that has the density of spores 4.5 x 1010 spores/g conducted showed no negative impact on abundance and species diversity of arthropod predators in the main rice and ratoon rice.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Beauveria bassiana, predatory arthropoda, rice
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ1480-1496 Agricultural machinery. Farm machinery
Divisions:	05-Faculty of Agriculture > 54211-Agricultural Technology (S1)
Depositing User:	Mrs Sri Astuti
Date Deposited:	09 Dec 2019 03:54
Last Modified:	09 Dec 2019 03:54
URI:	http://repository.unsri.ac.id/id/eprint/20697

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