Claim Missing Document
Check
Articles

Found 32 Documents
Search

Aktivitas minyak dan serbuk enam spesies tumbuhan terhadap peneluran dan Mortalitas Callosobruchus sp. (Coleoptera: Bruchidae) Dadang, Dadang; Saputro, Budi; Ohsawa, Kanju
Jurnal Entomologi Indonesia Vol 3, No 2 (2006): September
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (225.481 KB) | DOI: 10.5994/jei.3.2.59

Abstract

Storage pests remain one of the main problems in storage. The pest attacks occur not only in the field, but also in storage. Control should be done to maintain the quality of storedproducts. The environmentally friendly measures should be implemented to avoid negative impacts to the environment and human being. The objective of this research was to study the mortality and oviposition deterrence caused by powder and oil of six plant species against Callosobruchus sp. (Coleoptera: Bruchidae). Flowers of Eugenia aromatica, roots of Vetiveria zizanioides, leaves of Pogostemon cablin, seeds of Ricinus communis, seeds of Foeniculum vulgare, and stems of Cymbopogon citratus were air-dried and milled to yield powder. Oil of six plant species were purchased from local market. Oviposition deterrent bioassay was conducted by no-choice method for both powder and oil, while mortality bioassay was conducted by topical application and residual methods for plant oil only. Several plant species showed high biological activity to Callosobruchus sp. Powder of E. aromatica and oil of V. zizanioides caused high oviposition deterrence, while oil of V. zizanioides and E. aromatica caused high mortality.
PENGETAHUAN SIKAP DAN TINDAKAN PETANI BAWANG MERAH DALAM PENGGUNAAN PESTISIDA (Studi Kasus di Kabupaten Nganjuk Propinsi Jawa Timur) Sulistiyono, Luluk; Tarumingkeng, Rudi C.; Sanim, Bunasor; Dadang, Dadang
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 15, No 1 (2008)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (254.025 KB)

Abstract

The aim of the research was to probe farmer’s knowledge, attitude and action on the use of pesticide and its impact on the health of the farmers and the population of various organisms.  The research was conducted in the production center of shallot at Nganjuk regency of East Java Province from March to August 2002 and used the survey method.  The number of respondents was 192 farmers selected based on the Stratified Sampling method at six villages from three sub-districts.  The results showed that the SLPHT farmers had a high level of attitude and knowledge on the use of pesticide whereas the non-SLPHT farmers only had low to moderate level of both.  However, the farmer’s attitude and knowledge were not implemented when they applied the pesticide on their crop.  Harmful effects of the pesticide misuse have degraded the farmer health with symptoms such as unconscious, blindness and also acetilcollin enzyme disorder.  The population of local organisms was also reduced.  In conclusion, the farmers had overlooked their own knowledge and attitude when pesticides were applied in the field, consequently the farmers’ health were at risk.
Keefektifan ekstrak Piper retrofractum Vahl., Anonna squamosa L. dan Tephrosia vogelii Hook. serta campurannya terhadap imago kutu putih pepaya Paracoccus marginatus Williams & Granara de Willink (Hemiptera: Pseudococcidae) Asnan, Trijanti A. Widinni; Sartiami, Dewi; Anwar, Ruly; Dadang, Dadang
Jurnal Entomologi Indonesia Vol 12, No 2 (2015): July
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (531.932 KB) | DOI: 10.5994/jei.12.2.80

Abstract

Paracoccus marginatus Williams & Granara de Willink (Hemiptera: Pseudococcidae) is one of the papaya insect pests that causes  high economic loss. The major constraint in controling this pest with insecticides is the existence of wax layer covering the insect body.The objective of this research was to evaluate the effectiveness of Piper retrofractum (Pr), Anonna squamosa (As), and Tephrosia vogelii (Tv) extracts as well as their mixtures to control P. marginatus imago in the laboratory. Pr, As, and Tv extracts were tested separately and in extract mixtures against female P. marginatus by direct spray on the insect.  Each treatment was observed at 24, 48, and 72 hours after treatment (HAT). Our result showed that at the LC95 – 72 HAT, Tv and As extracts were about three times more effective to P. marginatus than Pr extract. The effective concentration that causing around 95% mortality of P. marginatus are 1.250% (Tv), 1.482% (Pr), dan 0.469% (As). Extracts mixtures of Tv + As (2:1, w/w) and As + Ps (2 : 1, w/w) were about 1.67 times more effective than Tv + Pr (2:1, w/w) extracts mixtures. Based on combination index at 72 HST, extract mixtures of Tv + As and Tv + Pr had low sinergistic joint action, meanwhile As + Pr extract mixture had additive joint action. In addition, all the extracts treatments disturbed the formation of the wax coverings the eggs (egg sacs). Pr, As, and Tv extracts as well as their mixtures at certain extract comparison have the alternate potential to control the mealybug P. marginatus.
Ketahanan padi (Oryza sativa L.) varietas IPB 3S terhadap wereng batang cokelat (Nilaparvata lugens (Stål) (Hemiptera: Delphacidae) Nurdaaniyah, Andi; Dadang, Dadang; Winasa, I Wayan
Jurnal Entomologi Indonesia Vol 17 No 2 (2020): July
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.17.2.97

Abstract

Brown planthopper (Nilaparvata lugens (Stål)) is one of the major rice insect pests that is known to cause high loss of rice production. One of the strategies to control this pest is by using resistant rice varieties. The aim of this research was to study the resistance of IPB 3S variety to BPH by measuring BPH fecundity, sex ratio, feeding activity as well as population increase compared to Ciherang variety against brown planthopper (N. lugens). Fecundity test used a pair of BPH adult infested on 21 days after planting (DAP) of rice plants. Eggs laid in rice stalks and the rest of eggs in the ovary were counted. In order to know the change of sex ratio, a pair of BPH adults was infested on 30 DAP rice plants and allowed to lay eggs. The calculation of sex ratio was conducted at adult stage of BPH by segregation between male and female adults. Feeding activity of BPH was evaluated using ninhydrin and analyzed qualitatively using spectrophotometer. Ten fourth instar nymphs of BPH was infested on 30 DAP old of rice seedlings. Honeydew secreted by BPH was collected to filter paper sprayed with ninhydrin. Population increased test was conducted by infesting five pairs of BPH adults on 35 DAP old rice plants. Observations was conducted on nymph and adult stages. Each test was replicated 10 times. In general, IPB 3S is slightly resistant to BPH, compared to Ciherang variety. The feeding activity of BPH is higher in Ciherang compared to IPB3S. However, the fecundity and population increased of BPH in Ciherang is similar to IPB3S.
Parameter demografi Opius chromatomyiae (Hymenoptera: Braconidae) pada lalat pengorok daun Liriomyza Huidobrensis (diptera: agromyzidae) Rustam, Rusli; Rauf, Aunu; Maryana, Nina; Pudjianto, Pudjianto; Dadang, Dadang
Jurnal Entomologi Indonesia Vol 4, No 2 (2007): September
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1309.355 KB) | DOI: 10.5994/jei.4.2.75

Abstract

Opius chromatomyiae (Hymenoptera: Braconidae) is an endoparasitoid attacking leafminers in the field. The objective of the research is to study the statitiscal demographic of the parasitoid. Result showed that female lifespan (9.95 days) was shorter than male (11.73). Female fecundity was about 104.73 eggs. with rate of egg production per day was about 9.31 eggs. This parasitois was also found to be female-biased sex ratio. Regarding population parameter, net reproduction rate (Ro) was about 28.55, of increase (λ) 1.23. The stable age of Opius chromatomyiae was about 37.93% eggs, 24.92 % larval, 20.36 % pupae and 16.78 % adult.
Gangguan fisiologi dan biokimia Crocidolomia pavonana (F.) (Lepidoptera: Crambidae) akibat perlakuan ekstrak campuran Tephrosia vogelli dan Piper aduncum Lina, Eka Chandra; Dadang, Dadang; Manuwoto, Syafrida; Syahbirin, Gustini
Jurnal Entomologi Indonesia Vol 12, No 2 (2015): July
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (338.723 KB) | DOI: 10.5994/jei.12.2.100

Abstract

Plant extracts have been known to cause physiological and biochemical interferences against insect, such as feeding inhibitor, food assimilation, and changes on activity of cytochrome b5 and cytochrome P450. This study was carried out to examine the effect of the extracts mixture of Tephrosia vogeliiand : Piper aduncum (1 : 5) on the physiology of Crocidolomia pavonana (F.) as well as extract of P. aduncum on biochemical of C. pavonana. The study showed that larvae of C. pavonana was experiencing a feeding inhibition until 94.82% after treated with extracts mixture on concentration 0.06% or equivalent to LC95. However, larvae treated with extracts mixture on LC25 and LC50 only experienced a relative growth disorders as a result of intrinsic toxicity of extracts mixture which enters into the body of insects. Insect adaptation to toxic plant compounds indicated by an increase in the digestibility of larvae approximately 11.11%. Furthermore, detoxification mechanism by larvae against active compounds of P. aduncum occured and shown by an increase of oxidative enzyme activity of cytochrome b5 and cytochrome P450, in in vivo and in vitro compared to control. This study provides an information about mode of action of extracts mixture of T. vogelii and P. aduncum (1 : 5) on larvae of C. pavonana and detoxification mechanism by larvae due to extract of P. aduncum
Potensi Insektisida Pasak Bumi (Eurycoma longifolia Jack) terhadap Hama Kubis Crocidolomia pavonana (F.) (Lepidoptera: Crambidae) Lina, Eka Chandra; Aarneti, Arneti; Prijono, Djoko; Dadang, Dadang
Jurnal Entomologi Indonesia Vol 6, No 1 (2009): April
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (160.574 KB) | DOI: 10.5994/jei.6.1.21

Abstract

The research was conducted at Laboratory of Insect Physiology and Toxicology of Plant Protection Department of Bogor Agricultural University from May to July 2008. Leaves, twigs, barks, and roots of Eurycoma longifolia (Pasak bumi) were extracted with hexane, ethyl acetate, and methanol solvens. The extraction was used single method and level method. Insecticidal activity of each extract has been examined in laboratory to major cabbage pests Crocidolomia pavonana using leaf residual method. Methanol root extract from single method and level method caused 100 and 75.5% mortality of insect test respectively. Hexane and ethyl acetate extracts of leaves, twigs, and barks have low insecticidal activity. The antifeedant effect worked at insect test and varied depends on concentration level. Antifeedant effect also contributed to mortality of larvae along with toxicity of each extract.
Komunitas Parasitoid Lalat Pengorok Daun pada Pertanaman Sayuran Dataran Tinggi Rustam, Rusli; Rauf, Aunu; Maryana, Nina; Pudjianto, Pudjianto; Dadang, Dadang
Jurnal Natur Indonesia Vol 11, No 1 (2008)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (132.174 KB) | DOI: 10.31258/jnat.11.1.40-47

Abstract

Leafminer fly, Liriomyza spp. are widely known as new important pests attacking many vegetable species inhigh land in Indonesia. The objective of the research was to study community of parasitoid leafminer in highaltitude, and parasitization level. This research also looked at more specific on parasitization level caused byOpius chromatomyiae. There were four species of leafminer recorded from the survey, Liriomyza huidobrensis,Liriomyza sativae, Liriomyza chinensis and Chromatomyia horticola. The observation also found eight species ofparasitioid associated with collected leafminers. Six species of recorded parasitoid belonged to family of Eulopidae,and two rest species belonged to Braconidae and Eucoilidae respectively. Those eight species of parasitoids wereHemiptarsenus varicornis, Asecodes deluchii, Neochrysocharis okazakii, Neochrysocharis formosa ,Neocrhysocharis sp. Quadrastichus liriomyzae, Opius chromatomyaie, Gronotoma micromorpha. ParasitoidOpius chromatomyiae and Hemiptarsenus varicornis were found to be dominant in the range altitude between1001-1300 and 1301-1600 asl. From 16 spesies of hosts attacked by leaf miners, only Opius chromatomyiae wasrecorded to have ability to parasitize the leafminer in 13 host species with parasitization level reached 1,84–62,26%.
Potensi Insektisida Melur (Brucea javanica L. Merr) dalam Mengendalikan Hama Kubis Crocidolomia pavonana (F.) (Lepidoptera: Crambidae) dan Plutella xylostella (L.) (Lepidoptera: Yponomeutidae) Lina, Eka Candra; Arneti, Arneti; Prijono, Djoko; Dadang, Dadang
Jurnal Natur Indonesia Vol 12, No 2 (2010)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (164.412 KB) | DOI: 10.31258/jnat.12.2.109-116

Abstract

This study was conducted to evaluate the potency of Brucea javanica (melur) for controlling two species ofcrucifer pests, i.e. Crocidolomia pavonana and Plutella xylostella. Melur fruits, twigs, and leaves were extracteddirectly with methanol or sequentially with hexane, ethyl acetate, and methanol. The most active extract was thenfractionated by preparative layer chromatography using hexane, mixtures of ethyl acetate and methanol, andmethanol as eluents. The most active fraction was formulated as EC (emulsifiable concentrate) and WP (wettablepowder) formulations, and tested for their toxicity and antifeedant effect against C. pavonana and P. xylostellalarvae. The results showed that methanol extract of melur fruits was more active than that of twigs and leaves.Fractionation of methanol extract of melur fruits yielded an active fraction which was eluted with ethyl acetate-methanol 9:1. EC and WP formulations of melur fruits were active against C. pavonana larvae with LC50 of 0.39%and 0.21%, respectively. The same formulations were also active against P. xylostella larvae with LC50 of 0.31% and0.54%, respectively. In no-choice tests, the antifeedant effect of the EC formulation on C. pavonana larvae (feedinginhibition [FI]: 70.9%-97.5%) was higher than on P. xylostella larvae (FI: 52.2%-83.9%), but the antifeedant effect ofthe WP formulation on the two species was relatively the same. In a choice test, the EC formulation at LC 85completely inhibited feeding by C. pavonana larvae (FI: 100%).
Aktivitas biologi enam jenis ekstrak tumbuhan famili Asteraceae terhadap larva Spodoptera litura Fabricius (Lepidoptera: Noctuidae) Dewi, Ratna Sari; Dadang, Dadang
Jurnal Entomologi Indonesia Vol 2, No 1 (2005): April
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1388.603 KB) | DOI: 10.5994/jei.2.1.51

Abstract

Biological Activity of Six Plan Extract from Asteraceae on Spodoptera litura Fabricius (lipedoptera : Noctuidae) Larvae. Asteraceae is one of plant family that is known to have insecticidal activity to several insect pests, such as Parthenium argentatum, Crysanthemum cineariaefolium, and Agerantum houstoneanum. The aim of this study is to explore other asteraceae species in other to search for insecticidal activity to Spodoptera litura Fabricius (Lepidoptera: Noctuidae). Six species, Blumea balsamifera (leaf), Elephantopus scaber (leaf), Gynura procumbens (leaf) Artemisia vulgaris (leaf) Soncbus arvensis (leaf) and Helianthus annus (seed) were use in this study. Plant extract were obtained by meseration method using menthanol. The extract were bioassayed to the second instar larvae of S. litura to evaluate the mortality, antifeedant and growth regulation activity. Extract of B. balsamifera and E. scaber have high antifeedant activity at 5 % by reducing larval feeding 87.7% and 81.8% in no choice test, and 94.1% and 86.1% in choice test method, respectively Extract of H. annus, A. vulgaris, and E. scaber prolonged the development of larvae by 4.9, 4.1, 3.9 days, respectively. While extract of H. annus caused mortality of larvae by 86% at 5%.