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All Journal The Journal of Experimental Life Sciences (JELS) Pelita Perkebunan
Toto Himawan
Faculty of Agriculture, University of Brawijaya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology Neuroscience

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The Combination of Entomopathogenic Fungus of Beauveria bassiana (Balls) Vuill. with the Insect Growth Regulator (IGR) of Lufenuron Against Reproductive of Bactrocera carambolae Fruit Flies (Diptera: Tephritidae) Adrianto Marthinus Ndii; Bambang Tri Rahardjo; Toto Himawan
The Journal of Experimental Life Science Vol. 6 No. 1 (2016)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (940.731 KB) | DOI: 10.21776/ub.jels.2016.006.01.07

Abstract

The study aimed to determine the reproductive ability of fruit flies B. carambolae treated with B. bassiana and Lufenuron. This study is conducted at the Laboratory of Pest. Department of Plant Pests and Diseases, Faculty of Agriculture, University of Brawijaya, Malang. This study used a completely randomized design with nine treatment and three replications. The study was trying to evaluate the effect of B. bassiana and Lufenuron on the reproduction capacity of B. carambolae. Results showed that adults of B. carambolae to applied combination of B. bassiana and Lufenuron immediately after coming out of the pupae until day eighth have the average number of eggs laid is 7.69%, a decrease of fecundity 92.40%, egg fertility by 61.38% and 95.24% decrease of reproduction. Adults of B. carambolae applied of B. bassiana and Lufenuron on day eighth until day sixteenth (for 8 days), show a decrease in the number of eggs laid by 13.63%, the decrease of fecundity 88.50%, egg fertility by 50.16% and decrease of reproduction by 93.12%.Keywords: Bactrocera carambolae, Beauveria bassiana, Lufenuron.
Diversity and Abundance of Natural Enemies of Helopeltis antonii in Cocoa Plantation Related with Plant Pattern and Insecticide Application Mochamad Syarief; Agung Wahyu Susilo; Toto Himawan; A. Latief Abadi
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 33 No 2 (2017)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v33i2.266

Abstract

Natural enemy is an important factor in management of cacao pests. One way to increase its diversity and abundance is through agroecosystem management techniques that support. The study was conducted for one year from February 2014 to February 2015 in Banjarsari Plantation and a cocoa farm of Kaliwining Experimental Station, Jember, which applied different cropping patterns and use of insecticides. The purpose of this research was to study the effect of cropping pattern and use of insecticide on diversity and abundance of predators, parasitoids, abundance and intensity of Helopeltis antonii attack. Observation of pests and natural enemies was done visually, using sweep net, yellow pan traps, malaise trap and pifall trap. Intensity of the attack used Pedigo & Buntin equations. Diversity index used Shannon Diversity Index (H’) and Simpson’s dominance index (C). Differences in predator abundance, parasitoid, air temperature, relative humidity, light intensity and rainfall used Wilcoxon test. Results of this study showed that monoculture and intensive use of synthetic insecticides caused lower diversity and abundance of predators and parasitoids, while the abundance and intensity of H. antonii attacks were higher compared with polyculture without insecticide. Banjarsari cocoa plantation that applied monoculture and intensive use of synthetic insecticides, had lower diversity and abundance predators and parasitoids compared with cocoa plantation in Kaliwining that applied polyculture planting without using insecticide. Dominant predators in Banjarsari and in Kaliwining cocoa plantations were Dolichoderus thoracicus and Araneus diadematus, while dominant parasitoid in Banjarsari and in Kaliwining cocoa plantations was Araneus diadematus.
Co-Authors A. Latief Abadi Adrianto Marthinus Ndii Agung Wahyu Susilo Bambang Tri Rahardjo Mochamad Syarief