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Keefektifan ekstrak daun kecubung (Datura metel L.) dalam menghambat penetasan dan siklus hidup Aedes aegypti L. Martini, Martini; Astriana, Novi; Yuliawati, Sri; Hestiningsih, Retno; Purwantisari, Susiana
Jurnal Entomologi Indonesia Vol 15 No 1 (2018): Maret
Publisher : Perhimpunan Entomologi Indonesia

Datura metel L. is a type of shrub that has a wooden stem, hard, and thick. Datura leaves contain chemical compounds alkaloids, saponins, flavonoids, and phenols. Based on the chemical content, datura leaves potentially as an alternative insecticide that can replace the use of synthetic insecticides. The use of synthetic insecticides in controlling the Aedes aegypti L. population has had a negative impact, such as environmental pollution, public health problems, and vector resistance. The purpose of this study was to study the effect datura leaf extract as a biochemical insecticide on inhibiting egg hatching and life cycles of Ae. aegypti. The research was conducted at Entomology Laboratory, Public Health Faculty, Universitas Diponegoro. This type of research was a true experiment with four replications and with concentration treatment i.e. 125, 250, 500, 750, 1000, and 1250 ppm. The subjects of this study were egg fertile of Ae. aegypti which were 25 eggs in each container and the total number of samples was 800 eggs. The used method for extraction was maceration. The result of probit analysis showed the activity of amethyst extract insecticide with LC50 = 199.34 ppm and LC90 = 749.08 ppm. The result of ANOVA showed a difference in the average number of non-hatching eggs due to exposure of datura leaf extract (P = 0,001). The percentage of Ae. aegypti egg hatching failure was lowest at concentration 125 ppm (41%) and the highest was at concentration 1250 ppm (98%). The survival of larvae, pupa, and mosquitoes was highest at concentration 125 ppm (49.18%, 55.17%, and 43.75% respectively). In conclusion, the datura leaf extracts potentially as a biochemical insecticide that inhibits eggs hatching and life cycles of Ae. aegypti.

Keberhasilan hidup parasitoid Diadegma semiclausum Hellen dan serangga inangnya Plutella xylostella (L.) terhadap aplikasi ekstrak biji srikaya (Annona squamosa L.) Bonjok Istiaji; Djoko Prijono; Damayanti Buchori
Jurnal Entomologi Indonesia Vol 15 No 1 (2018): Maret
Publisher : Perhimpunan Entomologi Indonesia

Control of Plutella xylostella L. can be done both biologically and chemically. Biological control is generally done by utilizing plant extracts to kill insect pests. This study aims to determine the effect of the extract of seeds on the mortality and development of parasitoid Diadegma semiclausum Hellen and its host, P. xylostella. The effect of Srikaya seed extract on P. xylostella larvae in the initial stage was tested by foliar rest method, while the residue method on the glass surface was used to test the effect of the extract of seed extract of Srikaya on the death of imago D. semiclausum. The effect of seed extract on parasitization and development of D. semiclausum was performed by exposing P. xylostella larvae contaminated by the extract of srikaya seeds in sublethal concentration (LC5 and LC10) in imago D. semiclausum. The results showed that extract of srikaya seeds at a concentration of 0.0632–0.1% at 24-hour contamination affected the death of the larva P. xylostella and the imago parasitoids D. semiclausum. Imago parasitoids are more susceptible to increased concentration of extracts than P. xylostella larvae. The developmental resistance of P. xylostella by Srikaya seed extract at concentrations used is generally unreal. Similarly, the barriers to the development of parasitoid D. semiclausum in hosts contaminated with sublethal concentrations (LC5 and LC10) of seed extract are generally not significantly different. The presence of Srikaya seed extract in the host also has no significant effect on the extent of parasitization, cocoon length, cocoon width, and cocoon weight. Therefore, there is a possibility to chemically and biologically integrate P. xylostella control.

Keanekaragaman serangga pengunjung bunga pada tanaman tumpang sari kedelai dengan tanaman orok-orok (Crotalaria juncea) Rahayu, Sayekti Kurnia; Supriyadi, Supriyadi; Supriyono, Supriyono; Wijayanti, Retno; Putri, Retno Bandriyati Arni
Jurnal Entomologi Indonesia Vol 15 No 1 (2018): Maret
Publisher : Perhimpunan Entomologi Indonesia

Flowering plants can enhance the population of insect pollinators as well as crop yields. This study was aimed to determine the effect of intercropping between Crotalaria juncea and soybean on the diversity of flower-visiting insects and the role of wild pollinator to yield of soybean. The study was carried out on a single plot, with the treatment: without planting of C. juncea (control), planting of C. juncea surrounds of the soybean field, planting of C. juncea every 5 rows of soybean and planting of C. juncea every 10 rows of soybean. The effect of wild pollinator was identified by bagging the soybean by using insect net. The results revealed that planting of C juncea may increase the diversity of flower-visiting insect. The highest diversity index was 2.37 found on the plot with the planting of C. juncea every 10 rows of soybean. The highest diversity of flower-visiting insect was 18 species found in treatment by planting C. juncea every 5 rows of soybean. Flower-visting insects were dominated by Coccinella transversalis, Apis mellifera, Xylocopa virginica, Megachile parientina, Megachile relativa, Ropalidia fasciata, and Vespa sp. Wild pollinator by the open pollination (without bagging) may increase 30.11% number of pods, 44.63% number of seeds, and 15.44% seed weight per plant, this shows how important the role of wild/insect pollinators.

Populasi Elaeidobius kamerunicus Faust (Coleoptera: Curculionidae) pada beberapa umur tanaman kelapa sawit Rahardjo, Bambang Tri; Rizali, Akhmad; Utami, Ika Putri; Karindah, Sri; Puspitarini, Retno Dyah; Sahari, Bandung
Jurnal Entomologi Indonesia Vol 15 No 1 (2018): Maret
Publisher : Perhimpunan Entomologi Indonesia

Elaeidobius kamerunicus Faust is an oil palm pollinator insect that lives on the male inflorescence and visits female inflorescence to pollinate due to attracted by its volatile compound. The number of fruit sets of oil palm relates to the population of E. kamerunicus on a plantation. The objective of this study was to investigate the effect of age of oil palm on the population of E. kamerunicus. Field research was conducted in oil palm plantations that located in Pangkalan Lada, Kotawaringin Barat District, in Central Kalimantan. The research method was by measurement of E. camerunicus population on male inflorescences and set up the sticky trap on female inflorescences. Plot with size 7000 m2 (100 trees) was selected on several ages of oil palm i.e. 6, 10 and 16 years. Each plot, the number of male and female inflorescences was counted and some inflorescences were chosen for measurement of E. camerunicus population that was conducted monthly for three months of observation. The results showed that the age of the oil palm affected the population of E. kamerunicus in male inflorescences but not in female inflorescences. The older age of oil palm, the population of E. kamerunicus in male flowers was increasing. The sex ratio of E. kamerunicus found in male and female inflorescences of oil palms tend to female bias. Based on the comparison of E. kamerunicus population between male and female inflorescences on each plot, it was found that visitation value of E. kamerunicus was highest in the young oil palm. In conclusion, increasing age of oil palm trees affected on increasing of E. kamerunicus population in male inflorescences, but visitation value on female inflorescences prone to decline.

Host preference fruit flies Bactrocera carambolae (Drew & Hancock) and Bactrocera dorsalis (Drew and Hancock) (Diptera: Tephritidae) Dodin Koswanudin; Adi Basukriadi; I Made Samudra; Rosichon Ubaidillah
Jurnal Entomologi Indonesia Vol 15 No 1 (2018): Maret
Publisher : Perhimpunan Entomologi Indonesia

Host plant preference amongst several fruit species was studied for two fruit fly species i.e. Bactrocera carambolae (Drew & Hancock) and Bactrocera dorsalis (Drew & Hancock), which both belong to B. dorsalis species complex. Both fruit fly species are known to be polyphagous and cause significant economic losses as pests of fruit crops. The aim of this research was to assess the host range of these major pests in Indonesia. The research was conducted at the Entomology Laboratory and Insect Specimen Collection Laboratory, Indonesian Center for Agriculture Biotechnology and Genetic Resource Research and Development, Bogor, West Java, Indonesia from June 2011 to March 2012. Comparative host preference for both species was studied with regard to malaya varieties of star fruit (Averrhoa carambolae), manalagi varieties of mango (Mangifera indica), guava aka water apple (Psidium guajava), citra water guava (Eugenia aquae), jamaica bol guava (Eugenia malaccenensis), and california papaya (Carica papaya). Our results suggest the strongest preference for malaya star fruit by B. carambolae followed by manalagi mango; and for california papaya followed by manalagi mango by B. dorsalis. The study also found that welahan variety star fruit is least preferred by both species of fruit fly.

Serangan Arthroschista hilaralis Walk. (Lepidoptera: Pyralidae) pada tegakan jabon (Neolamarckia cadamba [Roxb.] Bosser) di Sumatera Selatan Sri Utami; Hermanu Triwidodo; Pudjianto Pudjianto; Aunu Rauf; Noor Farikhah Haneda
Jurnal Entomologi Indonesia Vol 15 No 1 (2018): Maret
Publisher : Perhimpunan Entomologi Indonesia

Infestation of pest is a major problem in the seedling and field of Jabon (Neolamarckia cadamba [Roxb.] Bosser) in Indonesia, especially in South Sumatra. Arthroschista hilaralis Walk. (Lepidoptera: Pyralidae) is one defoliator pest attacked jabon stands. Some information about the infestation of A. hilaralis are required for pest control and prevent. The objective was to study the incidence level and intensity level of A. hilaralis on jabon stands at the planting age 2 and 4 years at the 2 seasons, and analyze the effect of weather (temperature and humidity) to foliar damage caused by A. hilaralis. This experiment was conducted in six locations in South Sumatra. The plots were delineated in three area that each plot was 0.03 ha in area and contain 20 jabon trees. Observations on the incidence and intensity level of A. hilaralis were conducted every month for 16 months representing two categories of time point observation of the rainy season and dry season. The results showed that infestation of A. hilaralis on jabon stands at the planting age 2 years and the rainy season was higher than planting age 4 years and another season. The incidence level and intensity level of A. hilaralis were 74.45% and 55.21% respectively. Weather factors (e.g. temperature and humidity) thought affected the incidence level and intensity level of A. hilaralis. Temperature has negative correlation to the incidence level of A. hilaralis (r = -0.629; p = 0.009) and to the intensity level of A. hilaralis (r = -0.546; p = 0.029). Humidity has positive correlation to the incidence level of A. hilaralis (r = 0.900; p < 0.0001) and to the intensity level of A. hilaralis (r = 0.768; p = 0.0005).

Keefektifan ekstrak daun kecubung (Datura metel L.) dalam menghambat penetasan dan siklus hidup Aedes aegypti L. Martini, Martini; Astriana, Novi; Yuliawati, Sri; Hestiningsih, Retno; Purwantisari, Susiana
Jurnal Entomologi Indonesia Vol 15 No 1 (2018): Maret
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.15.1.50

Datura metel L. is a type of shrub that has a wooden stem, hard, and thick. Datura leaves contain chemical compounds alkaloids, saponins, flavonoids, and phenols. Based on the chemical content, datura leaves potentially as an alternative insecticide that can replace the use of synthetic insecticides. The use of synthetic insecticides in controlling the Aedes aegypti L. population has had a negative impact, such as environmental pollution, public health problems, and vector resistance. The purpose of this study was to study the effect datura leaf extract as a biochemical insecticide on inhibiting egg hatching and life cycles of Ae. aegypti. The research was conducted at Entomology Laboratory, Public Health Faculty, Universitas Diponegoro. This type of research was a true experiment with four replications and with concentration treatment i.e. 125, 250, 500, 750, 1000, and 1250 ppm. The subjects of this study were egg fertile of Ae. aegypti which were 25 eggs in each container and the total number of samples was 800 eggs. The used method for extraction was maceration. The result of probit analysis showed the activity of amethyst extract insecticide with LC50 = 199.34 ppm and LC90 = 749.08 ppm. The result of ANOVA showed a difference in the average number of non-hatching eggs due to exposure of datura leaf extract (P = 0,001). The percentage of Ae. aegypti egg hatching failure was lowest at concentration 125 ppm (41%) and the highest was at concentration 1250 ppm (98%). The survival of larvae, pupa, and mosquitoes was highest at concentration 125 ppm (49.18%, 55.17%, and 43.75% respectively). In conclusion, the datura leaf extracts potentially as a biochemical insecticide that inhibits eggs hatching and life cycles of Ae. aegypti.

Populasi Elaeidobius kamerunicus Faust (Coleoptera: Curculionidae) pada beberapa umur tanaman kelapa sawit Rahardjo, Bambang Tri; Rizali, Akhmad; Utami, Ika Putri; Karindah, Sri; Puspitarini, Retno Dyah; Sahari, Bandung
Jurnal Entomologi Indonesia Vol 15 No 1 (2018): Maret
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.15.1.31

Elaeidobius kamerunicus Faust is an oil palm pollinator insect that lives on the male inflorescence and visits female inflorescence to pollinate due to attracted by its volatile compound. The number of fruit sets of oil palm relates to the population of E. kamerunicus on a plantation. The objective of this study was to investigate the effect of age of oil palm on the population of E. kamerunicus. Field research was conducted in oil palm plantations that located in Pangkalan Lada, Kotawaringin Barat District, in Central Kalimantan. The research method was by measurement of E. camerunicus population on male inflorescences and set up the sticky trap on female inflorescences. Plot with size 7000 m2 (100 trees) was selected on several ages of oil palm i.e. 6, 10 and 16 years. Each plot, the number of male and female inflorescences was counted and some inflorescences were chosen for measurement of E. camerunicus population that was conducted monthly for three months of observation. The results showed that the age of the oil palm affected the population of E. kamerunicus in male inflorescences but not in female inflorescences. The older age of oil palm, the population of E. kamerunicus in male flowers was increasing. The sex ratio of E. kamerunicus found in male and female inflorescences of oil palms tend to female bias. Based on the comparison of E. kamerunicus population between male and female inflorescences on each plot, it was found that visitation value of E. kamerunicus was highest in the young oil palm. In conclusion, increasing age of oil palm trees affected on increasing of E. kamerunicus population in male inflorescences, but visitation value on female inflorescences prone to decline.

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Location
Kota bogor,

Jawa barat

INDONESIA