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Jurnal Perlindungan Tanaman Indonesia

jpti
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Published by Universitas Gadjah Mada

ISSN : 14101637 EISSN : 25484788 DOI : -

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Arjuna Subject : -

Articles 10 Documents

Search results for , issue "Vol 4, No 1 (1998)" : 10 Documents clear

Kajian Aspek Biologi Stegobium paniceum (Coleoptera: Anobiidae) V. Poerdriesti; F. X. Wagiman; Koeswari Ananda
Jurnal Perlindungan Tanaman Indonesia Vol 4, No 1 (1998)
Publisher : Universitas Gadjah Mada

The biological aspects of Stegobium paniceum (L.) (Coleoptera: Anobiidae) was studied by culturing the insect on coriander seeds at the Laboratory of Research Center for Biological Control (RCBC), Gadjah Mada University, under room temperature of 26.55± 0.72oC – 30.66± 0.40oC and 57.38 ± 5.53% relative humidity. The results showed that egg, larval, and pupal stages of S. paniceum were 9.15±1.37; 35.97±5.53 and 5.80±0.54 days, respectively. Females laid eggs firstly at 5 days old, hence, the life cycle was 55.92 days. The female produced eggs for 4.69±3.42 days, as many as 13.67±9.39 eggs. The eggs were laid in the coriander seeds; up to more than 50 eggs per seed, but only 68.54±29.27% out of them hatched and the one to three individuals of them developed into adult. Larvae and pupae lived in the coriander seeds or in coriander powder. The adults did not eat and could survive for 27.90±18.71 days, but could cause damage by making exit holes on the coriander seeds. The pest might cause coriander damage up to 80%.

Sumbangan Pengenalan Waktu Tradisional “Pranata Mangsa” pada Pengelolaan Hama Terpadu Sukardi Wisnubroto
Jurnal Perlindungan Tanaman Indonesia Vol 4, No 1 (1998)
Publisher : Universitas Gadjah Mada

Cropping pattern and time of planting are two of several factors supporting Integrated Pest Management (IPM). Pranata Mangsa (PM) is a Javanese traditional time reckoning which has existed since some thousand years ago but formally as a calendar was socialized by the King of Surakarta in June 22, 1855. PM has twelve mangsas (similar to a month for other calendar system). Some farmers in Central Java, especially around Surakarta, still use this time reckoning system as a guidance for their activities including the agricultural ones. This system for example enables people to predict the beginning of wet and dry season and also to determine the best time for rice planting to escape from pests and diseases. Based on the information collected in Boyolali district, Central Java, it is known that there is a relationship between mangsa indicators with the attack intensity of rice stemborers.

Dampak Andrografolid dan Dua Jenis Insektisida Sintetik sebagai Penghambat Makan Nephotettix virescens, terhadap Transmisi Virus Tungro I Nyoman Widiarta; Muhammad Muhsin; Dede Kusdiaman
Jurnal Perlindungan Tanaman Indonesia Vol 4, No 1 (1998)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.9832

The effect of andrographolide and two synthetic insecticides of pymetrozine and imidacloprid, an antifeedant against N. virescens (Distant), to the rice virus transmission were tested using test tube inoculation method in the green house under natural photoperiod and average temperature of 28.5oC. The root of tungro diseased plant were soaked for 24 hours into tested materials before acquisition feeding to test virus acquisition inhibition, while root of rice seedlings were soaked into tested material for 24 hours before inoculation feeding to test virus inoculation inhibition. The results of studies showed that andrographolide, pymetrozine, and imidacloprid significantly reduced virus acquisition and virus inoculation by N. virescens. Pymetrozine and andrographolide treatments to the tungro diseased plants at concentration of 20 ppm significantly reduced proportion of viruliferous vector to become 17% in average. The increasing concentration into 40 ppm of both materials did not significantly reduce proportion of viruliferous vector. Imidacloprid at concentration of 0.01 and 0.02 ppm, completey inhibited feeding acquisition. Pymetrozine and andrographolide treatment at concentration of 20 ppm to the rice seedlings reduced significantly virus transmission by N. virescens to become 69% in average. The increasing concentration of pymetrozine up to 40 ppm did not reduce virus transmission rate. Imidacloprid at concentration of 0.01 ppm and 0.02 ppm reduced virus transmission to become 25% and 39%, respectively. It was concluded that imidacloprid was the most effective antifeedant reducing virus transmission by N. virescens among tested chemicals.

Distribution Pattern of Aphis gossypii and its Coccinellid Predator Menochilus sexmaculatus in the Chilli Ecosystem F. X. Wagiman; M. Y. Hussein; Rita Muhamad; A. S. Sajap; A. Ismail
Jurnal Perlindungan Tanaman Indonesia Vol 4, No 1 (1998)
Publisher : Universitas Gadjah Mada

A study on the distribution pattern of Aphis gossypii Glover and its coccinellid predator, Menochilus sexmaculatus Fabricius, was conducted in a chilli ecosystem at the experimental field of Universiti Putra Malaysia. The study had revealed that distribution of M. sexmaculatus positively correlated with its prey distribution. The patterns of lateral and vertical distribution of A. gossypii and M. sexmaculatus were categorized as a clumped pattern.

Reaktivitas Antibodi Poliklonal SSV terhadap Antigen Homolog dan Heterolog Sri Sulandari; Y. B. Sumardiyono; M. Roechan
Jurnal Perlindungan Tanaman Indonesia Vol 4, No 1 (1998)
Publisher : Universitas Gadjah Mada

Polyclonal antibodies for Soybean Stunt Virus (SSV) were produced in white rabbit through the following procedures: approximately 100 mg of purified virions emulsified in Complete Freund’s Adjuvant (CFA) were injected intramuscularly first. In the second and third injection 150 mg of purified virions in Incomplete Freund’s Adjuvant (IFA) per injection were injected intramuscularly. Finally, about 300 mg of purified virions were injected intravenously as a booster. The injection were done at 2 weeks interval. Antiserum was collected 5 days after the final injection. Antisera was purified by precipitation in saturated ammonium sulfate. Purified antibody was tested for the titer and reactivity of antibodies against the homologous and heterologous antigen. The studies were conducted with non-precoated I-ELISA test. This research was able to obtain about 25 ml of crude antisera for SSV, the concentration of purified polyclonal antibodies was about 9 mg/ml. the titer of polyclonal antibodies was 10.000 in I-ELISA. Without absorbtion with sap of healthy plant, the antibodies could not be use to identify the infected and healthy plant samples. In the following test, the absorbed antibody was used. Using antibodies to SSV at a dilution of 1:1000 and 1:10.000 against sap extracts sample of healthy and infected plant at a dilution of 1:10 by non-precoated I-ELISA test, indicated that the antibody could be used to identify the healthy and infected samples. By the same test, the antibody could be reacted to both homologous antigen (SSV) and heterologous antigen (CMV isolated from banana).

Pengaruh Daun Tanaman dalam Pemeraman terhadap Perkembangan Antraknos pada Pisang Ambon Toekidjo Martoredjo; Wahyu Budiasih; Ambarwati Harsojo Tjokrosoedarmo
Jurnal Perlindungan Tanaman Indonesia Vol 4, No 1 (1998)
Publisher : Universitas Gadjah Mada

Using plant leaves such as banana leaves, glyricidia leaves, and rice straw for ripening resulted in lower ripening stage score than control or using chemical such as ethrel, although statistically they are not siginificantly different. Glyricidia leaves and rice straw inhibit disease symptom representing anthracnose (Colletotrichum musae) development on Gros-Michel banana.

Pembiakan Massal Lyriomiza huidobrensis dengan Pakan Daun Kacang Babi (Vicia faba) Suputa Suputa; Edhi Martono
Jurnal Perlindungan Tanaman Indonesia Vol 4, No 1 (1998)
Publisher : Universitas Gadjah Mada

Mass rearing of Lyriomiza huidobrensis, a relatively new leaf miner known to attack potato, was done by using Vicia faba leaf as feed. The leaf miner was able to survive well on this feed, which in the field provide the larvae with alternative host. Result of the rearing was as follows: egg stadium, 4–5 days; larval stadium, 8–9 days; pupal stadium, 12–14 days; male adult longevity, 7–32 days; female adult longevity, 13–41 days. The number of eggs deposited by an average female varied between 114 to 592, with viability of 69.93 to 97.78%, and an average daily deposit of 8–25 eggs. The most important environmental factor in this mass rearing is temperature.

Aktivitas Biologis Rimpang Kencur terhadap Lalat Buah Melon II. Bioaktivitas Ekstrak Metanol Rimpang Edhi Martono
Jurnal Perlindungan Tanaman Indonesia Vol 4, No 1 (1998)
Publisher : Universitas Gadjah Mada

Kumchura (Kaempferia galangal L.) rhizome has been known to posses bioactivity to melon fly in its crude form. Extract preparation from the same plant part was tested against melon fly Bactrocera cucurbitae Coquillet’s eggs and larvae to investigate its toxicity and activity. Toxicity test was done by diluting the rhizome’s methanolic extract and incorporating the solution to larval diet. Based on the toxicity test, sublethal concentrations were then tested to determine the extract activity to egg and larval survivals, larval stage duration, puparial weight and length, extracts’ repellency to larvae and extracts’ hormonal activity to larvae. The result showed that kumchura extract toxicity was only considered “slightly toxic”, but sublethal concentration as low as 0.3125% (to eggs) and 2.5% (to larvae) significantly affected the fly’s survival, while the same concentration to egg and 0.625% concentration to larvae significantly prolonged larval stage durations. Extracts’ repellency to larvae was siginificant in sublethal concentration as low as 0.3125%, but kumchura extract has no significant effect on puparial weight and length, and did not contain any hormonal activities toward melon fly.

Pengaruh Cara Aplikasi Minyak Suling Melaleuca bracteata dan Metil Eugenol terhadap Daya Pikat Lalat Buah Bactrocera dorsalis Agus Kardinan; Momo Iskandar; Ellyda Abas Wikardi
Jurnal Perlindungan Tanaman Indonesia Vol 4, No 1 (1998)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.9877

Research has been conducted at farmer’s fruit garden in Cilebut area, Bogor during 1997–1998. The objective is to know the effect of some application techniques of oil distilled from Melaleuca bracteata leaves on trapping fruit fly. Research consisted of three activities, those were the effect of some techniques of application on trapping fruit flies (I) weekly, (2) in two weeks and (3) the effects of some concentrations of methyl eugenol (ME) on trapping fruit fly. All treatments were hung at the fruit trees as high as 1.5 m. Observations were done in the number and gender of fruit flies trapped weekly and two-weekly. Result revealed that melaleuca distilled oil can be applied either by dropping into water or into cotton ball. Melaleuca leaves distilled oil should be applied once in two weeks, since its effectiveness lasted for two weeks only. The minimum concentration of methyl eugenol which could fruit flies effectively was 57%.

Struktur Komunitas Artropoda pada Ekosistem Padi Tanpa Perlakuan Pestisida Eddy Mahrub
Jurnal Perlindungan Tanaman Indonesia Vol 4, No 1 (1998)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.9836

Generally, rice ecosystem was les stable because the structure of natural community often change, and it may cause decrease in the natural biodiversity. The research has been done in the lowland ricefield during wet and dry season without pesticides application. Observation was started when the plant (IR64) was 7 days old after transplanting with interval of 8 days until one week before harvest, to collect the arthropods from each samples. The objectives were to study the structure of community of arthropods during wet and dry season and to study food web chain in natural ecosystem and its implementation in the Integrated Pest Management Program. The results showed that in rice ecosystem four arthropod groups or guilds, was found i.e. Pests, Predators, Parasites and Neutral Arthropods. The diversity and species abundance of arthropods were high but the highest abundance of arthropods was found on the member of certain order and family only. The population of pest was lower than predator. The relative abundance of pests were 5.75% in wet season and 8.57% in dry season, while predators were 27.96% in wet season and 33.88% in dry season. The population density of spider predators especially Lycosa sp. during wet and dry season were very high. It was supported by the abundant of neutral arthropods as alternate prey when the pest population was very low. This condition may support negative feed back interaction and increase the potential of natural control in the absence of pesticide application.

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Reviewer

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Contact Name
Y. Andi Trisyono

Contact Email
anditrisyono@ugm.ac.id

Phone
+62274-523926

Journal Mail Official
jpti.faperta@ugm.ac.id

Editorial Address
Jalan Flora No. 1, Bulaksumur, Sleman, Yogyakarta, 55281

Location
Kab. sleman,

Daerah istimewa yogyakarta

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Y. Andi Trisyono

Contact Email anditrisyono@ugm.ac.id

Phone +62274-523926

Journal Mail Official jpti.faperta@ugm.ac.id

Editorial Address Jalan Flora No. 1, Bulaksumur, Sleman, Yogyakarta, 55281

Location Kab. sleman, Daerah istimewa yogyakarta INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Y. Andi Trisyono

Contact Email
anditrisyono@ugm.ac.id

Phone
+62274-523926

Journal Mail Official
jpti.faperta@ugm.ac.id

Editorial Address
Jalan Flora No. 1, Bulaksumur, Sleman, Yogyakarta, 55281

Location
Kab. sleman,

Daerah istimewa yogyakarta

INDONESIA