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Jurnal Entomologi Indonesia

jei
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Published by Perhimpunan Entomologi Indonesia

ISSN : 18297722 EISSN : 20890257 DOI : -

Core Subject : Science, Agriculture,

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

Jurnal Entomologi Indonesia (JEI) publishes original research papers and short communications that covers the basic and applied aspect of insects and mites or other arthropods in agriculture, forestry, human and animal health, and natural resources and environmental management. The journal is published by Perhimpunan Entomologi Indonesia (Entomological Society of Indonesia). JEI was first published at the beginning of 2004 with twice per year in frequency on March and September. Since 2015, Jurnal Entomologi Indonesia has been published three times per year on March, July, and November.

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Articles 6 Documents

Search results for , issue "Vol 9 No 2 (2012): September" : 6 Documents clear

Studi berbagai jenis sarang permanen untuk mengembangbiakkan semut hitam, Dolichoderus thoracicus (Smith) (Hymenoptera: Formicidae) Ahmad Saleh
Jurnal Entomologi Indonesia Vol 9 No 2 (2012): September
Publisher : Perhimpunan Entomologi Indonesia

Black ants, Dolichoderus thoracicus (Smith) (Hymenoptera: Formicidae) is one of the biological agents that can be used to control the cocoa pod borer Conopomorpha cramerella and Helopeltis sp. To effectively prevent C. cramerella infestation, high population of black ants are required. Population growth of black ants in three types of permanent nests and non permanent nest were observed during 3 months. Every month, five nests of each type were taken at random and then all stadia were calculated. The permanent nests will support ant population for some years and the black ant population per nest is higher when compared to nest made of dried cocoa leaves only. Permanent nests are made of 75 pieces of dried cocoa leaves which are placed in plastic bags with ventilation holes. In the longer term permanent black ant nests are more cost effective then ant nests which have been made from only dried leaves because frequent replacement is not required. Permanent ant nests will also ensure a stable black ant population is maintained.

Prevalensi cendawan entomopatogenik, Neozygites fumosa (Speare) Remaudie’re & Keller (Zygomycetes: Entomophthorales) pada populasi kutu putih, Paracoccus marginatus Williams & Granara De Willink (Hemiptera: Pseudococcidae) di wilayah Bogor Anik Nurhayati; Ruly Anwar
Jurnal Entomologi Indonesia Vol 9 No 2 (2012): September
Publisher : Perhimpunan Entomologi Indonesia

The prevalence of entomopathogenic fungus, Neozygites fumosa (Zygomycetes: Entomo-phthorales) on the papaya mealybug, Paracoccus marginatus (Hemiptera: Pseudococcidae), was studied in Bogor in two districts: Bubulak and Rancabungur in 2011. Thirty plants of either papaya or cassavas were sampled 8 times, once a week for insect population and biweekly for the fungus infection sampling. The results showed that the cassava mealybug was not found on both plants and all locations. The populations of papaya mealybug in Bubulak were higher than in Rancabungur. The populations of papaya mealybug on papaya were higher than those of cassava. However, N. fumosa infection levels on both plants and both locations were not significantly different.

Bioesai bioinsektisida Beauveria bassiana dari Sumatera Selatan terhadap kutu putih pepaya, Paracoccus marginatus Williams & Granara De Willink (Hemiptera: Pseudococcidae) Siti Herlinda; Komang Agus Darmawan; Firmansyah Firmansyah; Triani Adam; Chandra Irsan; Rosdah Thalib
Jurnal Entomologi Indonesia Vol 9 No 2 (2012): September
Publisher : Perhimpunan Entomologi Indonesia

In fresh swamp areas of South Sumatra, papaya mealybug, Paracoccus marginatus (Hemiptera: Pseudococcidae) could cause severe damage to young papaya trees and decreased the fruit quality. The objective of this research was to bioassay test of the bioinsecticide Beauveria bassiana againts nymphs of P. marginatus. B. bassiana was conducted on rice medium. The bioinsecticide was formulated using dried compost, compost gram, paddy ash, paddy bran, woody powder, paddy bran mixed with woody powder, compost enriched with Trichoderma virens. Controls used were sterile water (control 1) and isolate of B. bassiana (control 2). Results showed that conidial viability of B. bassiana on control 2 was the highest (46.33%). The viability of control 2 was not significantly different from the formulations with carrier of the paddy bran, the paddy bran mixed with woody powder, and the compost enriched with T. virens. The highest nymph mortality (82.86%) was found on formulation of compost enriched with T. virens and was significantly different from other treatments. The lowest visibly (73.48%) occured on formulation of paddy ash, and was significantly different from other treatments. Mortality on control 1 on average was 29.52%, whereas control 2 averaged of 75.71%. The shortest median lethal time (LT50) (3.55 days) was found on formulation of compost enriched with T. virens but the longest one (3.73 days) occured on the formulation of paddy ash. Overall, the most effective bioinsecticide was the formulation of compost enriched with T. virens.

Teknik budi daya larva Hermetia illucens (Linnaeus) (Diptera: Stratiomyidae) sebagai sumber protein pakan ternak melalui biokonversi limbah loading ramp dari pabrik CPO Agustin Zarkani; Miswarti Miswarti
Jurnal Entomologi Indonesia Vol 9 No 2 (2012): September
Publisher : Perhimpunan Entomologi Indonesia

Larvae of Hermetia illucens fly (Linnaeus) is an important source of alternative protein and can be used as pellets for feeds. Currently the production of H. illucens larvae is still limited because its rearing depends on palm kernel meal. The objective of the research is to explore alternative media for rearing, i.e. using loading ramp waste from crude palm oil factory. The study was conducted using physical-chemical analysis of the media. Evaluation of potential rearing media of loading ramp was done by studying the suitability of loading ramp fermented by EM4®, rumen microbes, and organic liquid fertilizer and without fermentation. Treatment media was develop with an enrichment ratio of 1 : 0.25, 1 : 05, and 1 : 1 (v/v) for bran and husk, and 1.25, 2.5, and 5% (w/w) for coconut sugar. Each experiment was arranged in complete randomized design using 20 larva of the 2nd instar. Larvas were incubated in plastic with tube with diameter of 10 cm and 20 cm in height containing of media 300 g. Response differences in growth and mortality were analyzed by ANOVA and least significant differences test at 0.05 levels. Preference and analysis suitability of the media were conducted using material enrichment. Results show that the loading ramp waste contain 9.80% protein and 10.32% fat. Although the media are could support growth and development of the larvae at different degree, media from waste fermentation POC loading ramp with bran enrichment 1 : 0.5 (v/v) is the best media for rearing larva.

Struktur komunitas serangga herbivora dan parasitoid pada polong tanaman kacang-kacangan (Fabaceae) di Padang Hasmiandy Hamid
Jurnal Entomologi Indonesia Vol 9 No 2 (2012): September
Publisher : Perhimpunan Entomologi Indonesia

Abundance and diversity of herbivorous insects are not only determined by the trophic level above, but also can be affected by the trophic level below it. This research aims to study the community of herbivorous insects and parasitoids on pods of different types of legume crops in Padang. The method used in this study was a survey method. This method was done by collecting pods of legume plants in various habitats. Insects contained in pods were maintained until adulthood. Individual insects that did not emerge from the pods were removed by dissecting pods. This method was also used to estimate the number of seeds, good seeds were damaged or not damaged in each pod. The results of this study indicated that the composition of herbivorous insects on legumes, especially legume Crotalaria striata was dominated by Eucorynus crassicornis, while the parasitoid composition was dominated by Braconidae. E. crassicornis has a wider range of expansion compared to other herbivorous insects. The insects were found on three types of legum C. striata, Crotalaria sp., and Leucaena leucocephala, whereas other types of herbivores attack only two types of legumes. The highest percentage of damage was obtained in Crotalaria striata i.e 74.53%.

Karakterisasi fenotip kultivar padi tahan dan rentan wereng coklat, Nilaparvata lugens Stål. (Hemiptera: Delphacidae) Puji Astuti; Supriyadi Supriyadi; Supriyono Supriyono
Jurnal Entomologi Indonesia Vol 9 No 2 (2012): September
Publisher : Perhimpunan Entomologi Indonesia

The brown planthopper, Nilaparvata lugens Stål. is a destructive and widespread insect pest throughout the rice areas in Indonesia. Rice plant resistance is an effective method in controlling N. lugens. However, the resistance sources and how their mechanism for imparting induced resistance against brown planthopper remains to be nderstood. This research was aimed to identify plant hair and protein banding patterns, as a genetic expression, of resistant and susceptible varieties. Identification of the variation of number of plant hair were carried out by using binocular microscope, while the protein banding patterns was detected by separation on SDS-Page. Co-variants analysis was adopted to identify the groups of resistant cultivars based on protein banding patterns. The results showed that plant hair on resistant rice cultivars are different with susceptible cultivars (resistance to Pelita I/1). The plant hair on resistant cultivars are larger/longer, more abudant and grew tighter than on susceptible cultivar. However the number of plant hair have no correlation with resistance level. In the absence of brown plant hopper infestation, the expression of protein total of resistant and susceptible cultivars are not clearly separated. Pelita I/1 varieties showed a similar banding pattern to IR 26 (biotype 1), IR 42 (resistance to biotype 2) and IR IR 74 (resistance to biotype 3), but the four cultivars are not similar to the resistant cultivar IR 36 varieties (resistance to biotype 2). Our research showed that both plant hair and protein banding patterns can not be used to identify the plant resistance.

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