scholarly journals Fluktuasi Populasi Serangga Wereng Batang Coklat (Nilaparvata lugens) Pada Lahan Sawah Di Kabupaten Kerawang Jawa Barat

Agrologia ◽  
2018 ◽  
Vol 7 (2) ◽  
Author(s):  
Martua Suhunan Sianipar
Keyword(s):  
Regression Analysis ◽  
Natural Enemy ◽  
Diversity Index ◽  
Brown Planthopper ◽  
Nilaparvata Lugens ◽  
Population Fluctuation ◽  
Plant Pests ◽  
Nilaparvata Lugens Stål ◽  
Experimental Plots

Brown Planthopper (Nilaparvata lugens Stal.) is a main pest of paddy. The purpose of this research is to study the population of Brown Planthopper and the natural enemy. The method of this research using survey. Survey was conducted in three experimental plots at JatisariSubdistrict, Karawang District, West Javaand in the greenhouse of the Department of Plant Pests and Deseases, Faculty of Agriculture,  Universitas Padjadjaran. The sample were collected by systematically diagonal using yellow stiky trap and manually or visual counting. The result showed population fluctuation BPH below the economy line where is temperature, humidity and rainfall did not significantly effect to the BPH population. It was indicated by the regression analysis of each temperature Y= (- 24.225 + 1.008 X1 ; R2 =0,020; P/Sign = 0.660),  Humidity  (Y=- 32.337 + 0.424 X2; R2  = 0,124; P/ Sign  = 0.261) and Rainfall (Y=1.707 + 0.090 X3 ; R2  = 0.050; P/ Sign = 0.487). There is a relation between temperature, humidity and rainfall to BPH (Y = - 123 + 2.685 T + 0.649 RH - 0.14 CH; R2 = 0.236; P/ Sign = 0.516) dit not significantly because as the value of significance (P = Sign)  > 0.05.8. The diversity index was moderate 1.88

scholarly journals Fluktuasi Populasi dan Keragaman Musuh Alami Hama Wereng Batang Coklat (Nilaparvata lugens Stal.) pada Lahan Padi Sawah di Wilayah Universitas Wiralodra, Kabupaten Indramayu, Jawa Barat

Agrikultura ◽  
2018 ◽  
Vol 29 (2) ◽  
pp. 82
Author(s):  
Martua Suhunan Sianipar
Keyword(s):  
Natural Enemy ◽  
Diversity Index ◽  
Brown Planthopper ◽  
Nilaparvata Lugens ◽  
Survey Method ◽  
Abiotic Factor ◽  
Population Fluctuations ◽  
Significance Level ◽  
Pests And Diseases ◽  
Nilaparvata Lugens Stål

ABSTRACTPopulation fluctuation and natural enemy diversity of brown planthopper (Nilaparvata lugens Stal.) in the rice lowlands of Wiralodra University Area, Indramayu Regency, West JavaBrown Planthopper/BPH (Nilaparvata lugens Stal.) is a main pest of paddy. The purpose of this research was to study the population fluctuation and natural enemy diversity of BPH in rice plants. The research was carried out with a survey method conducted on three experimental lands located in the lowlands of Wiralodra University, Singaraja Village, Indramayu District, Indramayu Regency, West Java and in the greenhouse of the Department of Plant Pests and Diseases, Faculty of Agriculture, Universitas Padjadjaran from June to August 2015. The samples were collected by systematically diagonal sampling method using yellow stiky trap and manually or visual counting. The result showed that the BPH population fluctuations were below BPH economic threshold the results of correlation analysis showed that temperature, humidity and rainfall did not have a significant influence on the abundance of the BPH population. This is indicated by the results of regression analysis of temperature (Y = - 49.9 + 1.71 X1; R2 = 0.055; P/Sign = 0.484), humidity (Y = - 41.829 + 0.598 X2; R2 = 0.457; P/Sign = 0.016), and rainfall (Y = 2.845 + 0.512 X3; R2 = 0.217; P/Sign = 0.127), respectively. The relationship between temperature/T, humidity/RH and rainfall/CH on WBC (Y = - 94.2 + 3.00 T + 0.002 RH + 0.804 CH; R2 = 0.581; P/ ign = 0.062) had a significance level > 0.05. The natural enemy insect diversity index was in the medium category (1.63).Keywords: BPH, Abiotic factor, Natural Enemy, Lowland riceABSTRAKWereng Batang Cokat/WBC (Nilaparvata lugens Stal.) merupakan hama utama tanaman padi. Penelitian ini bertujuan untuk mempelajari fluktuasi populasi serta keragaman musuh alami WBC pada tanaman padi. Penelitian ini dilakukan dengan metode survei yang dilakukan pada tiga lahan percobaan yang bertempat dataran rendah di wilayah Universitas Wiralodra, Desa Singaraja, Kecamatan Indramayu, Kabupaten Indramayu, Jawa Barat dan di rumah kaca Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran pada bulan Juni sampai Agustus 2015. Metode pengambilan sampel dilakukan secara diagonal menggunakan perangkap kuning berperekat (yellow stiky trap) serta secara manual (visual counting). Hasil penelitian menunjukkan fluktuasi populasi WBC berada di bawah ambang ekonomi WBC dan hasil analisa korelasi menunjukkan suhu, kelembaban dan curah hujan tidak memberikan pengaruh yang signifikan terhadap kelimpahan populasi WBC. Hal ini ditunjukkan dengan hasil analisis regresi masing-masing pada suhu (Y = - 49.9 + 1.71 X1; R2 = 0,055; P/Sign = 0,484), kelembaban (Y= - 41.829 + 0.598 X2; R2 = 0,457; P/Sign = 0,016) dan curah hujan (Y = 2.845 + 0.512 X3; R2 = 0,217; P/Sign = 0,127). Adapun hubungan antara Suhu/T, Kelembaban/RH dan Curah Hujan/CH terhadap WBC (Y = - 94.2 + 3.00 T + 0.002 RH + 0.804 CH; R2 = 0.581; P/Sign = 0.062) memiliki tingkat signifikansi > 0,05. Indeks keragaman serangga musuh alami WBC termasuk kategori sedang (1,63).Kata Kunci: WBC, Fakor Abiotik, Musuh alami, Lahan sawah

scholarly journals Populasi Hama Wereng Batang Coklat (Nilaparvata Lugens Stal.) Dan Keragaman Serangga Predatornya Pada Padi Sawah Lahan Dataran Tinggi Di Desa Panyocokan, Kecamatan Ciwidey, Kabupaten Bandung

Agrikultura ◽  
2015 ◽  
Vol 26 (2) ◽  
Author(s):  
Martua Suhunan Sianipar ◽  
Luciana Djaya ◽  
Entun Santosa ◽  
RC Hidayat Soesilohadi ◽  
Wahyu Daradjat Natawigena ◽  
...  
Keyword(s):  
Sex Ratio ◽  
Natural Enemy ◽  
Rice Field ◽  
Brown Planthopper ◽  
Nilaparvata Lugens ◽  
Paddy Rice ◽  
Paddy Rice Field ◽  
Nilaparvata Lugens Stål ◽  
New Generation ◽  
The Village

ABSTRACTPopulation of Brown Plant Hopper (Nilaparvata lugens Stal.) and the Diversity of Its Natural Enemyin Highland Paddy Rice Field in the Village of Panyocokan, Ciwidey District, Bandung RegencyBrown lanthopper/BPH (Nilaparvata lugens Stal.) is a main pest of rice in the field. This researchwas aimed to study the population of BPH and the diversity of its natural enemy in highland paddyrice field. The survey was conducted in three paddy plots (15 m x 20 m) located in the village ofPanyocokan, Ciwidey District, Bandung Regency, West Java. The experiment was conducted in thegreenhouse of the Department of Plant Pests and Diseases, Faculty of Agriculture, UniversitasPadjadjaran. The samples of insects were collected systematically using yellow trap and net trap,and visually observed in each rice cluster. The number of BPH were recorded and accumulatedeach week. Fecundity, life cycle, and sex ratio of the new generation of BPH were observed in 3replications by using 1 pair of WBC on each replication. The result showed that the population ofBPH in the highland was below 10, which means that BPH population was still below theeconomic threshold and control threshold. Temperature, humidity, and rainfall did notsignificantly affect the BPH population. This was indicated by the regression analysis of eachtemperature (Y = 0.557-8.167x; R2 = 0.039; P = 0.465), humidity (Y = -0.077+ 9.112x; R2 = 0.045; P =0.428), and rainfall (Y = -0.118 + 3.412x; R2 = 0.136; P = 0.159). Natural enemy diversity indextended to fluctuate widely from low to moderate. In the temperature range from 21.1°C to 34.8°C,BPH could produce 127-207 new generation during its lifetime. BPH needed an average of 37.66days to produce a new generation. The ratio of male to female was 1.06 : 1.Keywords: population, brown planthopper, diversity, predator, highland paddy rice field, Ciwidey,BandungABSTRAKHama wereng batang cklat/WBC (Nilaparvata lugens Stal.) merupakan hama utama tanaman padi.Penelitian ini bertujuan untuk mempelajari populasi WBC dan keragaman musuh alaminya padatanaman padi sawah di dataran tinggi. Penelitian dilakukan dengan metode survei dan eksperimen.Survei dilakukan pada 3 petak lahan percobaan berukuran 15 mx 20 m bertempat di DesaPanyocokan, Kecamatan Ciwidey, Kabupaten Bandung dan eksperimen dilakukan di rumah kacaDepartemen Hama dan Penyakit Tumbuhan, Fakultas Pertanian, Universitas Padjadjaran. Metodepengambilan sampel dilakukan secara diagonal sistematis. Populasi WBC ditentukan denganmenggunakan perangkap kuning dan perangkap jaring dan dengan pengamatan langsung padarumpun padi. Eksperimen dilakukan dengan meletakkan sepasang WBC dalam wadah, lalu diamatikeperidian, siklus hidup, dan sex ratio keturunannya. WBC yang tertangkap dihitung jumlahnyadan diakumulasikan setiap minggunya. Hasil penelitian menunjukkan bahwa kepadatan populasi dilahan survey di bawah 10 ekor/rumpun yang artinya populasi WBC masih di bawah ambangekonomi atau ambang kendali. Suhu, kelembaban, dan curah hujan tidak memberikan pengaruhyang signifikan terhadap populasi WBC. Hal tersebut ditunjukkan dengan analisis regresi masingmasingpada suhu (Y= 0,557 – 8,167x; R2 = 0,039; P= 0,465), kelembaban (Y = -0,077 + 9,112x; R2 =0,045; P = 0,428), dan curah hujan (Y = -0,118 + 3,412x; R2 = 0,136; P = 0,159). Indeks keragamanmusuh alami cenderung mengalami fluktuasi dari rendah sampai sedang. Pada kisaran suhu 21,1oC–34,8oC, hasil pengamatan keperidian menunjukkan WBC dapat menghasilkan 127-207 individubaru selama masa hidupnya. Pada pengamatan siklus hidup, WBC memerlukan rata-rata 37,66 harisampai menghasilkan generasi baru. Pengamatan sex ratio menunjukkan perbandingan (jantan :betina) 1,06 :1.Kata kunci: populasi, wereng batang coklat, keragaman, predator, sawah, dataran tinggi, Ciwidey,Bandung

scholarly journals The Effectiveness of Lemongrass Oil Against Brown planthopper Nilaparvata lugens Stal. (Hemiptera: Delphacidae) on Rice Plant

2021 ◽  
Vol 2 (1) ◽  
pp. 14-18
Author(s):  
Toto Himawan ◽  
Rina Rachmawati ◽  
Eka Putri Rifandani
Keyword(s):  
Rice Plant ◽  
Brown Planthopper ◽  
Nilaparvata Lugens ◽  
Food Crop ◽  
Lc50 Value ◽  
Plant Pests ◽  
The World ◽  
Lemongrass Oil ◽  
Natural Pesticides ◽  
Nilaparvata Lugens Stål

Rice (Oryza sativa) is the primary food crop in the world. The use of natural pesticides made from essential plants has begun to be developed because it is useful in controlling some plant pests. This study aimed to investigate lemongrass oil's effectiveness in controlling brown planthopper pests in rice plants. This study consist of five concentrations using lemongrass oil and sterile distilled water as control was repeated three times. The highest mortality of brown planthopper was found at 1.6% concentration (100%), while the lowest mortality was 0.1% concentration (26.66%). The lemongrass oil can be used to control brown planthoppers because of the LC50 value at a concentration of 8233.34 ppm (0.8%) and LT50 at 6 HAT.

scholarly journals The Diversity and Abundance of Egg Parasitoids in Brown Planthopper, Nilaparvata lugens Stål. (Hemiptera: Delphacidae) at Different Rice Growth Phases in Saketi, Pandeglang, Banten

2020 ◽  
Vol 24 (1) ◽  
pp. 1
Author(s):  
Nurullah Asep Abdilah ◽  
Hadi Susilo
Keyword(s):  
Diversity Index ◽  
Brown Planthopper ◽  
Nilaparvata Lugens ◽  
Egg Parasitoid ◽  
Egg Parasitoids ◽  
Extensive Study ◽  
Growth Stages ◽  
Rice Growth ◽  
Transect Line ◽  
Nilaparvata Lugens Stål

An extensive study about egg parasitoid biodiversity in different plant growth stages is an important need. This study was aimed to determine the diversity and abundance of egg parasitoids Nilaparvata lugens on different rice growth stages in Saketi, Pandeglang, Banten. The parasitoids sample was collected three times with two days interval sampling in three villages, i.e. Sodong (location I), Sindanghayu (location II), and Sukalangu (location III) from February to September 2018. Ten plants (as bait: rice that infected by N. lugens eggs) were put during two days along the transect line (100 meters) with 10 m space in between. The findings revealed that the abundance richness (S), the diversity index (H'), and similarity (J') of egg parasitoids of N. lugens were higher in the location I than those in the locations II and III. The study indicated that the diversity and abundance of egg parasitoids of N. lugens decreased in the generative phase of rice growth.

scholarly journals Keefektifan Insektisida BPMC dan Ekstrak Daun Suren terhadap Hama Wereng Batang Coklat (Nilaparvata lugens Stal.) dan Populasi Musuh Alami pada Padi Varietas Ciherang

Agrikultura ◽  
2016 ◽  
Vol 27 (3) ◽  
Author(s):  
Muhammad Subandi ◽  
Liberty Chaidir ◽  
Ulfah Nurjanah
Keyword(s):  
Natural Enemy ◽  
Leaf Extract ◽  
Rice Field ◽  
Negative Impact ◽  
Brown Planthopper ◽  
Nilaparvata Lugens ◽  
Control Treatment ◽  
Rice Grain ◽  
Grain Production ◽  
Nilaparvata Lugens Stål

ABSTRACTEffectiveness of BPMC insecticide and suren leaf extract on brown planthopper (Nilaparvata lugens Stal.) and its natural enemy population on Ciherang rice varietyEffectiveness study of BPMC insecticide and suren leaf extract esticide against brown planthopper and its side-effect on its natural enemy population on paddy Ciherang variety was conducted in rice field of Balai Besar Peramalan Organisme Pengganggu Tumbuhan (BBPOPT), Karawang, West Java from May to August 2015. The experimental design used was Randomized Blok Design with 7 treatments and 4 replications ie suren leaf extract of 50 g/l, 100 g/l and 150 g/l, three concentrations of BPMC of 0.5 ml/l, 1.0 ml/l and 1.5 ml/l, and a control treatment. The results showed that BPMC insecticide and suren leaf extract were able to suppress the population of brown planthopper and influenced its natural enemy population. The treatment of 50 g/l suren leaf extract gave the highest suppression of the brown planthopper population. It was also caused no negative impact to the natural enemies of P. fuscipes and L. pseudoannulata. The application of 1.5 ml/l of BPMC insecticide gave the highest grain weight average of 37.80 kg/plot compared to the lowest production in control treatment of 32.63 kg/plot. Therefore, application of BPMC insecticide and suren leaf extract effectively suppressed the brown planthopper population and the natural enemy existence was assumed to affect the rice grain production in this study.Keywords: BPMC insecticide, Natural enemy, Suren, PlanthopperABSTRAKStudi keefektifan insektisida BPMC dan ekstrak daun suren terhadap hama wereng batang coklat (WBC) dan efek samping terhadap musuh alami wereng pada padi varietas Ciherang dilaksanakan di sawah Balai Besar Peramalan Organisme Pengganggu Tumbuhan (BBPOPT) Karawang mulai Mei 2015 sampai Agustus 2015. Rancangan yang digunakan Rancangan Acak Kelompok (RAK) dengan 7 perlakuan dan 4 ulangan yaitu perlakuan tanpa insektisida (kontrol), 50 g/l ekstrak daun suren, 100 g/l ekstrak daun suren, 150 g/l ekstrak daun suren, 0,5 ml/l insektisida BPMC, 1,0 ml/l insektisida BPMC, dan 1,5 ml/l insektisida BPMC. Hasil menunjukkan perlakuan insektisida BPMC dan ekstrak daun suren dapat menekan populasi hama WBC dan memengaruhi populasi musuh alaminya (Paederus fuscipes dan Lycosa pseudoannulata). Perlakuan ekstrak daun suren konsentrasi 50 g/l dapat menekan populasi WBC tertinggi. Aplikasi ekstrak daun suren tidak berdampak negatif terhadap musuh alami P. fuscipes dan L. pseudoannulata. Perlakuan 1,5 ml/l insektisida BPMC menghasilkan produksi gabah tertinggi dari semua perlakuan dengan rata-rata bobot basah gabah 37,80 kg/petak dibandingkan dengan hasil terendah pada perlakuan kontrol sebesar 32,63 kg/petak. Dengan demikian, aplikasi insektisida BPMC dan ekstrak daun suren berpengaruh terhadap populasi hama WBC dan efek samping dari tingkat keberadaan musuh alami berakibat pada hasil gabah tanaman padi.Kata Kunci: Insektisida BPMC, Musuh alami, Suren, Wereng

scholarly journals Heat Stress Impedes Development and Lowers Fecundity of the Brown Planthopper Nilaparvata lugens (Stål)

PLoS ONE ◽  
2012 ◽  
Vol 7 (10) ◽  
pp. e47413 ◽  
Author(s):  
Jiranan Piyaphongkul ◽  
Jeremy Pritchard ◽  
Jeff Bale
Keyword(s):  
Heat Stress ◽  
Brown Planthopper ◽  
Nilaparvata Lugens ◽  
Nilaparvata Lugens Stål

RNA interference-aided knockdown of a putative saccharopine dehydrogenase leads to abnormal ecdysis in the brown planthopper, Nilaparvata lugens (Stål) (Hemiptera: Delphacidae)

2015 ◽  
Vol 105 (4) ◽  
pp. 390-398 ◽  
Author(s):  
P.-J. Wan ◽  
L. Yang ◽  
S.-Y. Yuan ◽  
Y.-H. Tang ◽  
Q. Fu ◽  
...  
Keyword(s):  
Brown Planthopper ◽  
Transcript Level ◽  
Nilaparvata Lugens ◽  
The Body ◽  
Double Stranded Rna ◽  
Saccharopine Dehydrogenase ◽  
Body Weights ◽  
Nilaparvata Lugens Stål ◽  
Phloem Feeding ◽  
Wing Deformation

AbstractThe brown planthopper Nilaparvata lugens is a serious phloem-feeding pest of rice in China. The current study focuses on a saccharopine dehydrogenase (SDH) that catalyzes the penultimate reaction in biosynthesis of the amino acid lysine (Lys), which plays a role in insect growth and carnitine production (as a substrate). The protein, provisionally designated as NlylsSDH [a SDH derived from yeast-like symbiont (YLS) in N. lugens], had a higher transcript level in abdomens, compared with heads, wings, legs and thoraces, which agrees with YLS distribution in N. lugens. Ingestion of Nlylssdh targeted double-stranded RNA (dsNlylssdh) for 5, 10 and 15 days decreased the mRNA abundance in the hoppers by 47, 70 and 31%, respectively, comparing with those ingesting normal or dsegfp diets. Nlylssdh knockdown slightly decreased the body weights, significantly delayed the development of females, and killed approximately 30% of the nymphs. Moreover, some surviving adults showed two apparent phenotypic defects: wing deformation and nymphal cuticles remained on tips of the legs and abdomens. The brachypterours/macropterours and sex ratios (female/male) of the adults on the dsRNA diet were lowered compared with the adults on diets without dsRNA. These results suggest that Nlylssdh encodes a functional SDH protein. The adverse effect of Nlylssdh knockdown on N. lugens implies the importance of Lys in hopper development. This study provides a proof of concept example that Nlylssdh could serve as a possible dsRNA-based pesticide for planthopper control.

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