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INFLUENCE OF HOST STAGE ON OVIPOSITION, DEVELOPMENT, AND SEX RATIO OF Anagyrus lopezi (DE SANTIS) (HYMENOPTERA: ENCYRTIDAE), A PARASITOID OF THE CASSAVA MEALYBUG, Phenacoccus manihoti MATILE-FERRERO 1 (HEMIPTERA: PSEUDOCOCCIDAE) Adriani, Evie; Rauf, Aunu; Pudjianto, Pudjianto
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 20 No. 2 (2020): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.220130-139

Influence of host stage on oviposition, development, and sex ratio of Anagyrus lopezi (De Santis) (Hymenoptera: Encyrtidae),a parasitoid of the cassava mealybug, Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae). The parasitoidAnagyrus lopezi (De Santis) (Hymenoptera: Encyrtidae) was introduced from Thailand into Indonesia in early 2014 to controlthe invasive cassava mealybug, Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae). Because of the need toproduce large numbers of high-quality females, research was conducted in the laboratory to determine host stage preferencefor A. lopezi on different instars of P. manihoti. Individual female wasps were exposed to first, second, third instar nymphs,and pre-reproductive adult mealybugs. In the no-choice test, the frequency of parasitized hosts and the number of eggs laidper host was significantly higher in second and third instar nymphs as well as adult mealybugs compared to first instarnymphs. In the two-choice test, third instars nymphs and adult mealybugs were the most preferred host for oviposition.Immature development of parasitoids was faster and the ratio of female to male parasitoids was higher following ovipositionin second and third instar nymphs and pre-reproductive adult hosts, compared to the first instar nymphs. Our findingsindicate that the use of pre-reproductive adults as hosts in a mass-rearing program would be the most productive and fastestway to produce A. lopezi populations with a female-biased sex ratio. Field release of parasitoids should be conducted whenthe hostâ€™s third instar nymph is the most abundant because the period during which preferred and suitable host stages areavailable would be the longest.

PENGARUH LAMA PENYIMPANAN INANG PADA SUHU RENDAH TERHADAP PREFERENSI SERTA KESESUAIAN INANG BAGI Trichogrammatoidea armigera NAGARAJA Husni Husni; Alfian Rusdy; Pudjianto Pudjianto; Zulfanazli Zulfanazli
Jurnal Floratek Vol 5, No 2 (2010)
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (285.427 KB)

The purpose of this study was to investigate effect of storage period length under low temperature on host preference and host suitability for egg parasitoid, Trichogrammatoidea armigera. In this study, Corcyra cephalonica eggs were used as the alternative host. The result showed that the storage of host eggs under low temperature for 1.5 to 3 hours was able to delay host egg hatching until the day 5, however, for normal host eggs the hatching time was started at day 4. This method did not exert a negative effect on host preference and host suitability for parasitoid T. armigera. The rate of parasitism on the stored hosts was more than 90%, and it was not significantly different from the normal host. T. armigera progeny (offspring) emerged from the stored host was also very high (more than 100%). The result also showed that the percentage of T. armigera female progeny emerged from stored hosts higher than the normal host. The female progeny emerged from normal host was 51%, while from hosts stored under low temperature for 1.5, 2.0, 2.5 and 3 hours were 69,49%, 66,03%, 66,16% and 71,10%, respectively. The results indicated that the stored host eggs under low temperature (1– 4 oC) for 1,5 – 3,0 hours did not kill the host embryo, but only delay the hatching times. Therefore, the availability of a sufficient number of fresh hosts could be maintained in the laboratory, so that the efficiency of mass rearing program of T. armigera parasitoid could be increased.

THE POPULATION SUCCESSION PATTERNS OF CABBAGE MAIN PEST Plutella xylostella L. AND Crocidolomia pavonana Fab AT CABBAGE PLANTATION Ketut Ayu Yuliadhi; I Wayan Supartha; I Nyoman Wijaya; Pudjianto Pudjianto
International Journal of Biosciences and Biotechnology Vol 3 No 1 (2015)
Publisher : Central Laboratory for Genetic Resource and Molecular Biology, Faculty of Agriculture, Udayana University in cooperation with Asia-Oceania Bioscience and Biotechnology Consortium (AOBBC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (214.173 KB)

This study was aimed to investigate the population dynamics of the cabbage insect pests, Plutella xylostella and Crocidolomia pavonana under natural conditions. The population succession patterns of both pests were determined by observing the abundance of their population on a regular basis from the beginning to the end of the planting season. Understanding the population succession patterns of P. xylostella and C. pavonana will give an idea the shifting time by both pests on attacking the crops, therefore on deciding the time of controlling. The population succession patterns occur in 8 weeks of planting season. P. xylostella dominated the cabbage plants when they were 1-5 weeks after planting (WAP), but when the cabbage plants were more than 5 weeks old they were dominated by C pavonana.

Parasitoid Diversity and Host-Parasitoid Interaction in Oil Palm Plantations with Different Management System Muhammad Iqbal Tawakkal; Damayanti Buchori; Akhmad Rizali; Adha Sari; Pudjianto Pudjianto
Jurnal Perlindungan Tanaman Indonesia Vol 23, No 1 (2019)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.31232

Parasitoids play an important role in controlling pests, including pests of oil palm. To maximize biological control technique using parasitoids, interactions between pests and parasitoids need to be studied. This research aimed to study parasitoid diversity and host-parasitoid interaction in oil palm plantation with the different management system. The field research was conducted in oil palm plantation own by smallholder and company (PT Humusindo) in Jambi. Sampling insects was conducted by collecting pests (parasitoid host) on oil palm trees with age of four years old. Eggs, larvae, and pupae of the pests were taken directly by hand then reared in the laboratory to know their parasitoids. Pests and parasitoids emerged were identified up to morphospecies or species level. A total of 176 lepidopteran pests consisting of 15 morphospecies and 6 families, and 650 parasitoids consisting of 21 morphospecies and 12 families have been collected. Nine morphospecies of pests from 25 individuals were found in smallholder plantation and 14 morphospecies of pests from 151 individuals in company plantation. Eight morphospecies of 26 parasitoids were found in smallholder plantations and 8 morphospecies of 624 parasitoids in the company plantation. The interaction structure between pests and parasitoids is more complex in the company plantation than in smallholder plantations. Family Braconidae and Ichneumonidae are the most parasitoids found and associated with nettle caterpillars. The different of the management system of oil palm plantation did not affect the diversity and abundance of pests as well as their parasitoids in oil palm plantations.

NGENGAT PARASITOID (Lepidoptera : Epipyropidae) PADA WERENG PUCUK METE DI PERTANAMAN JAMBU METE DI PULAU LOMBOK BAMBANG SUPENO; DAMAYANTI BUCHORI; PUDJIANTO PUDJIANTO; UTOMO KARTOSUWONDO; CHRISTIAN H. SCHULZE
Jurnal Penelitian Tanaman Industri Vol 15, No 1 (2009): Maret 2009
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v15n1.2009.16-23

ABSTRAKWereng pucuk mete, Sanurus indecora (Homoptera : Flatidae),merupakan hama utama tanaman jambu mete di pulau Lombok. Berbagaicara pengendalian telah dilakukan baik secara kimiawi maupun biologi.Pengendalian biologis yang telah banyak digunakan adalah pemanfaatandan eksplorasi musuh alami yang mencakup parasitoid, patogen danpredator. Salah satu musuh alami wereng daun (leafhoppers) dan werengpohon (planthoppers) yang masih belum diteliti di Indonesia dan baru 20spesies yang ada di di dunia adalah Epipyropidae. Ektoparasitoid familiEpipyropidae yang berasosiasi dengan imago S. indecora telah ditemukanpertama di Indonesia, khususnya di Pulau Lombok. Tujuan penelitian iniadalah untuk mengetahui keberadaan ngengat parasitoid pada inang S.indecora pada pertanaman jambu mete di lahan kering Pulau Lombok.Penelitian ini difokuskan pada dua kegiatan utama, yaitu pengambilansampel di lapang dan pengamatan laboratorium. Lokasi penelitian beradadi tiga desa di wilayah Kecamatan Gangga, Kayangan, dan Bayan.Penelitian dilakukan selama musim kemarau 2007 (Mei hingga Oktober2007) dan musim hujan (November 2007 hingga April 2008) di tiga kebunjambu mete milik petani yang ditanam secara monokultur. Dari penelitianini dapat diberikan beberapa kesimpulan, yaitu : wereng pucuk mete S.indecora berkembang baik pada musim kemarau (April hingga September)dan cenderung menurun pada saat musim hujan (Oktober hingga Maret),dengan populasi tinggi dicapai pada bulan Agustus hingga Oktober 2007.Larva ektoparasitoid Epypiropidae menyerang S. indecora jantan danbetina yang bersifat soliter dan atau gregarius. Laju parasitisasiEpipyropidae pada S. indecora jantan lebih kecil daripada betina, yaituberkisar 5,89 – 12,16% dan betina berkisar 15,23 – 19,23%. LarvaEpipyropidae tidak dapat menekan laju pertumbuhan populasi S. indecoradi pertanaman monokultur jambu mete di pulau Lombok. Denganperkataan lain bahwa semakin tinggi populasi S. indecora semakin rendahlaju parasitisasi yang ditemukan.Kata kunci : Anacardium occidentale, Sanurus indecora, ngengatparasitoid, EpipyropidaeABSTRACTParasitoid moth (Lepidoptera : Epipyropidae) on cashewplanthopper at cashew plantation in LombokSanurus indecora Jacobi is a serious pest attacking cashewplantation in Lombok Island. A number of natural enemies of flatids werefound on cashew plantation such as predator, pathogen, and parasitoid. Allmembers of Epipyropidae (Lepidoptera) are ectoparasitoid onplanthoppers and leafhoppers (Homoptera). The first report onEpipyropidae in Indonesia was documented, in Lombok whereEpipyropidae parasitized S. indecora. Study was conducted to determinethe prevalence of parasitoid moth on S. indecora at Lombok uplandcashew plantations. This experiment was conducted on May 2007 untilApril 2008 in three village areas of Gangga, Kayangan, and Bayandistricts. The results showed that population of Sanurus indecora increasesgradually from April until October (dry season) and decreases fromNovember until March (rainy season), with the highest population occursin August to October. Epipyropidae attacks both male and female of S.indecora J. Parasitation rate of male ranges from 0.38 – 46.00% with anaverage of 8.96%. Parasitation rate of female varies from 8.77 - 38.52%with an average of 17.45%. Epipyropidae is a solitary and or gregariousparasitoid. The parasitation rate was negatively correlated with S. indecorapopulation. The numbers of Epipyropidae larvae were correlated with thenumbers of S. indecora infected.Key words : Anacardium occidentale, Sanurus indecora, parasitoid moth,Epipyropidae

STUDI LALAT PENGOROK DAUN LIRIOMYZA SPP. PADA PERTANAMAN BAWANG DAUN, DAN PARASITOID OPIUS CHROMATOMYIAE BELOKOBYLSKIJ & WHARTON (HYMENOPTERA: BRACONIDAE) Rusli Rustam, Aunu Rauf, Nina Maryana, Pudjianto, dan Dadang.
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 9 No. 1 (2009): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Studies on Leafminer Liriomyza spp. in Green Onion Fields, and Parasitoid Opius chromatomyiae Belokobylskij & Wharton (Hymenoptera: Braconidae). Field studies were conducted to determine population abundance of leafminers and their parasitoids in green onion fields in Puncak, West Java. In addition to that, laboratory studies were carried out to determine demographic parameter of Opius chromatomyiae as well as response of parasitoid to increasing host density. Results revealed that green onions were infested by two species of leafminers, Liriomyza huidobrensis and Liriomyza chinensis. Leafminer flies emerged from Erwor leaves (54.5) were significantly higher than those of RP leaves (18.65) (P = 0.0005). However, number of leafminer flies caught on sticky traps was not statistically different (P = 0.297). Two species of parasitoid, Hemiptarsenus varicornis and O. chromatomyiae, were associated with leafminers in green onion fields. Higher number of parasitoids emerged from Erwor leaves (13.68) as compared to RP (6.90) (P =0.0007 ). However, level of parasitization were 24.36% on Erwor and 28.45% on RP, and was not significantly different (P = 0.387). Laboratory studies indicated that net reproduction (Ro) of O. chromatomyiae was 28.55, generation time (T) 15.96 days, intrinsic growth rate 0.21, and total of reproductive value 223.64. The stable age distribution of parasitoid were 37.93% eggs, 24.92% larvae, 20.36% pupae and 16.78% adults. The parasitoid showed functional response type II to increasing host density, with a = 0.08 and Th = 2.58.

Does Landscape Complexity and Semi-Natural Habitat Structure Affect Diversity of Flower-Visiting Insects in Cucumber Fields? Akhmad Rizali; Damayanti Buchori; Susilawati Susilawati; Pudjianto Pudjianto; Yann Clough
AGRIVITA, Journal of Agricultural Science Vol 40, No 1 (2018): FEBRUARY
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v40i0.1722

Presence of insects in agricultural habitat is affected by the surrounding circumstances such as the complexity and structure of landscape. Landscape structure is often formed as a consequence of the fragmentation of semi-natural habitat, which can negatively affect species richness and abundance of insects. This study was aimed to study the effect of complexity and structure of landscape on the diversity, abundance and traits of flower-visiting insects in cucumber fields. This study was conducted in cucumber fields surrounded by other agricultural crops, shrubs, semi-natural habitat and housing area, in Bogor, Cianjur and Sukabumi regencies, West Java, Indonesia. In a total of 16 agricultural areas, complexity and parameter of landscape especially class area (CA), number of patches (NumP), mean patch size (MPS), total edge (TE), and mean shape index (MSI) of seminatural habitats were measured. Sampling of flower-visiting insects was conducted using scan sampling methods. The result showed that landscape complexity affected species richness (but not abundance and trait) of flower-visiting insects both for mobile and less-mobile insects. Flower-visiting insects also responded differently to landscape structure. Species richness, abundance and variation of body size of mobile insects were affected by structure of semi-natural habitat.

NGENGAT PARASITOID (Lepidoptera : Epipyropidae) PADA WERENG PUCUK METE DI PERTANAMAN JAMBU METE DI PULAU LOMBOK BAMBANG SUPENO; DAMAYANTI BUCHORI; PUDJIANTO PUDJIANTO; UTOMO KARTOSUWONDO; CHRISTIAN H. SCHULZE
Jurnal Penelitian Tanaman Industri Vol 15, No 1 (2009): Maret 2009
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v15n1.2009.16-23

ABSTRAKWereng pucuk mete, Sanurus indecora (Homoptera : Flatidae),merupakan hama utama tanaman jambu mete di pulau Lombok. Berbagaicara pengendalian telah dilakukan baik secara kimiawi maupun biologi.Pengendalian biologis yang telah banyak digunakan adalah pemanfaatandan eksplorasi musuh alami yang mencakup parasitoid, patogen danpredator. Salah satu musuh alami wereng daun (leafhoppers) dan werengpohon (planthoppers) yang masih belum diteliti di Indonesia dan baru 20spesies yang ada di di dunia adalah Epipyropidae. Ektoparasitoid familiEpipyropidae yang berasosiasi dengan imago S. indecora telah ditemukanpertama di Indonesia, khususnya di Pulau Lombok. Tujuan penelitian iniadalah untuk mengetahui keberadaan ngengat parasitoid pada inang S.indecora pada pertanaman jambu mete di lahan kering Pulau Lombok.Penelitian ini difokuskan pada dua kegiatan utama, yaitu pengambilansampel di lapang dan pengamatan laboratorium. Lokasi penelitian beradadi tiga desa di wilayah Kecamatan Gangga, Kayangan, dan Bayan.Penelitian dilakukan selama musim kemarau 2007 (Mei hingga Oktober2007) dan musim hujan (November 2007 hingga April 2008) di tiga kebunjambu mete milik petani yang ditanam secara monokultur. Dari penelitianini dapat diberikan beberapa kesimpulan, yaitu : wereng pucuk mete S.indecora berkembang baik pada musim kemarau (April hingga September)dan cenderung menurun pada saat musim hujan (Oktober hingga Maret),dengan populasi tinggi dicapai pada bulan Agustus hingga Oktober 2007.Larva ektoparasitoid Epypiropidae menyerang S. indecora jantan danbetina yang bersifat soliter dan atau gregarius. Laju parasitisasiEpipyropidae pada S. indecora jantan lebih kecil daripada betina, yaituberkisar 5,89 – 12,16% dan betina berkisar 15,23 – 19,23%. LarvaEpipyropidae tidak dapat menekan laju pertumbuhan populasi S. indecoradi pertanaman monokultur jambu mete di pulau Lombok. Denganperkataan lain bahwa semakin tinggi populasi S. indecora semakin rendahlaju parasitisasi yang ditemukan.Kata kunci : Anacardium occidentale, Sanurus indecora, ngengatparasitoid, EpipyropidaeABSTRACTParasitoid moth (Lepidoptera : Epipyropidae) on cashewplanthopper at cashew plantation in LombokSanurus indecora Jacobi is a serious pest attacking cashewplantation in Lombok Island. A number of natural enemies of flatids werefound on cashew plantation such as predator, pathogen, and parasitoid. Allmembers of Epipyropidae (Lepidoptera) are ectoparasitoid onplanthoppers and leafhoppers (Homoptera). The first report onEpipyropidae in Indonesia was documented, in Lombok whereEpipyropidae parasitized S. indecora. Study was conducted to determinethe prevalence of parasitoid moth on S. indecora at Lombok uplandcashew plantations. This experiment was conducted on May 2007 untilApril 2008 in three village areas of Gangga, Kayangan, and Bayandistricts. The results showed that population of Sanurus indecora increasesgradually from April until October (dry season) and decreases fromNovember until March (rainy season), with the highest population occursin August to October. Epipyropidae attacks both male and female of S.indecora J. Parasitation rate of male ranges from 0.38 – 46.00% with anaverage of 8.96%. Parasitation rate of female varies from 8.77 - 38.52%with an average of 17.45%. Epipyropidae is a solitary and or gregariousparasitoid. The parasitation rate was negatively correlated with S. indecorapopulation. The numbers of Epipyropidae larvae were correlated with thenumbers of S. indecora infected.Key words : Anacardium occidentale, Sanurus indecora, parasitoid moth,Epipyropidae

Gejala dan Intensitas Serangan Serangga Fitofagus pada Sagu [The Symptoms and Intensity Attacks of Phytophagous Insects on Sago] Rein Estefanus Senewe; Hermanu Triwidodo; Nfn Pudjianto; Aunu Rauf; Marietje Pesireron
Buletin Palma Vol 20, No 1 (2019): Juni 2019
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bp.v20n1.2019.57-68

The growth and development of sago palm naturally interact with the organism such as insects. The symptoms of damage to the plant canopy sago indicate a relationship between insects and plants. This study aims to identify phytophagous insects, symptoms of damage and attack rates on sago plants. The study was conducted in the village of Rutong and Tulehu in Maluku, starting in June until September 2016. There are 10 plants/sago clump in each observations in each location determined by purposive sampling. Each sago clump in the growth phase (seedlings, tillers, a trunk stage, and stems / trees), observed symptoms of damage to leaflets and leaf midribs. The results showed four symptoms of attack on the sago canopy with an average intensity of mild attacks. The highest incidence of attack was 37.5% in the phase of a trunk stage with the symptoms of cutout attacks on the leaves. Then seven species phytophag insects were obtained which were associated with sago canopy. Each of the insect imago phases leads to leaf damage with distinctive features, which can potentially cause severe damage to the canopy of the sago plant.ABSTRAKPertumbuhan dan perkembangan tanaman sagu secara alami berinteraksi dengan organisme diantaranya serangga. Gejala kerusakan tajuk tanaman sagu menunjukkan adanya hubungan antara serangga dan tanaman. Tujuan penelitian adalah untuk mengidentifikasi serangga fitofag, gejala kerusakan dan tingkat serangan pada tanaman sagu. Penelitian dilakukan pada areal sagu di Desa Rutong dan Tulehu Provinsi Maluku, dimulai bulan Juni – September 2016. Tersedia 10 tanaman/rumpun sagu ditiap lokasi pengamatan yang ditentukan secara purposive sampling. Setiap rumpun sagu pada fase pertumbuhan (semai, anakan, sapihan, dan batang/pohon), diamati gejala kerusakan anak daun dan pelepah daun. Hasil penelitian menunjukkan empat gejala serangan pada tajuk tanaman sagu dengan rata-rata intensitas serangan ringan. Insidensi serangan tertinggi (37.5%) pada fase sapihan dengan gejala serangan bentuk guntingan pada daun. Selanjutnya diperoleh tujuh jenis serangga fitofagus yang berasosiasi dengan tajuk tanaman sagu. Masing-masing fase imago serangga menimbulkan kerusakan daun dengan ciri khas berbeda, sehingga dapat berpeluang menimbulkan kerusakan berat pada tajuk tanaman sagu.

Laju enkapsulasi parasitoid Anagyrus lopezi (De Santis) (Hymenoptera: Encyrtidae) oleh kutu putih singkong Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae) Evie Adriani; Aunu Rauf; Pudjianto Pudjianto
Jurnal Entomologi Indonesia Vol 13 No 3 (2016): November
Publisher : Perhimpunan Entomologi Indonesia

Parasitoid Anagyrus lopezi (De Santis) (Hymenoptera: Encyrtidae) was introduced into Indonesia in early 2014 to control the cassava mealybug, Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae). The objective of study was to determine encapsulation rate of parasitoid A. lopezi by various host instars of P. manihoti. Observation of encapsulation rate was made by exposing a single mated female of parasitoid on mealybug nymph-1, -2, -3, and adult in a plastic cage for 24 h. Mealybugs then were dissected and number of parasitoid eggs laid and those encapsulated were counted. Study revealed that rate of aggregate encapsulation was highest (8.4%) by adults, followed by nymph-3 (5.8%), nymph-2 (3.1%), and nymph-1 (1.1%). Rate of effective encapsulation by adults was 2.0%, whereas by nymphs about 1.0%. The low rate of encapsulation is believed not to reduce the effectiveness of parasitoid A. lopezi in the biological control of cassava mealybug P. manihoti in Indonesia.

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