scholarly journals Comparative Efficacies of Next-Generation Insecticides Against Yellow Stem Borer and Their Effects on Natural Enemies in Rice Ecosystem

Rice Science ◽  
2019 ◽  
Vol 26 (3) ◽  
pp. 157-166 ◽  
Author(s):  
Muhammad Matiar Rahaman ◽  
Michael Joseph Stout
Keyword(s):  
Natural Enemies ◽  
Stem Borer ◽  
Next Generation ◽  
Yellow Stem Borer ◽  
Rice Ecosystem

Natural parasitism of eggs of yellow stem borer, Scirpophaga incertulas Walker (Lepidoptera: Crambidae) in rice ecosystem at Tiruchirappalli, Tamil Nadu

ENTOMON ◽  
2020 ◽  
Vol 45 (3) ◽  
pp. 181-188
Author(s):  
T. Sharmitha ◽  
C. Gailce Leo Justin ◽  
S. Sheeba Joyce Roseleen ◽  
P. Yasodha
Keyword(s):  
Field Study ◽  
Tamil Nadu ◽  
Host Density ◽  
Stem Borer ◽  
Scirpophaga Incertulas ◽  
Egg Masses ◽  
Yellow Stem Borer ◽  
Rice Ecosystem ◽  
Natural Parasitism

Three species of parasitoids viz., Telenomus dignus Gahan, Trichogramma japonicum, Ishii and Tetrastichus schoenobii Ferriere were recorded from the egg masses of rice yellow stem borer, Scirpophaga incertulas (Walker) in a field study. The extent of parasitism was high during Rabi (43.33 – 93.33 %) and low during Kharif (0 - 40.00 %). Parasitism by T. dignus was maximum in October (50.00 %), T. japonicum, in November (23.08 %) and T. schoenobii in February (55.55 %). dignus and T. schoenobii in combination parasitized maximum number of egg masses (41.82 %). Multiple parasitism by the three species was high in December (8.33 %) and January (7.14%). Parasitic potential was maximum, when T. schoenobii alone parasitised the egg masses followed by T. dignus and T. schoenobii in combination. Host density in the field influenced the extent of parasitism.

Status of Insect Pests and Natural Enemies of Direct Seeded and Transplanted Rice

2017 ◽  
Vol 14 (4) ◽  
pp. 11-29
Author(s):  
K N Ashrith
Keyword(s):  
Natural Enemies ◽  
Insect Pests ◽  
Stem Borer ◽  
Cnaphalocrocis Medinalis ◽  
Green Leafhopper ◽  
Yellow Stem Borer ◽  
Transplanted Rice ◽  
Rice Leaf Folder ◽  
The Status ◽  
Direct Seeded

Studies were conducted on the status of insect-pests and natural enemies of direct seeded rice (DSR) in comparison with puddled transplanted rice (PTR) during rabi and kharif in 2013-14. The rice leaf folder and yellow stem required both the seasons. Maximum leaf folder Cnaphalocrocis medinalis (Guenee) (13.03%) damage and yellow stem borer damage (13.49%) of white ears was recorded during last week of October and second week of November in DSR under unprotected situation respectively. While sucking pests population mainly green leafhopper incidence was comparatively high in PTR (3.29 and 4.92/hill) also plant hoppers incidence (BPH and WBPH) (28.90 and 18.44 adults/hill) under unprotected situation during two seasons respectively. Population of predators at both the season remained high throughout the study period in PTR than the DSR except

scholarly journals Relative abundance of stem borer species and natural enemies in rice ecosystem at Madhupur, Tangail, Bangladesh

2016 ◽  
Vol 12 (2) ◽  
pp. 267-272 ◽  
Author(s):  
MM Rahaman ◽  
KS Islam ◽  
M Jahan ◽  
MAA Mamun
Keyword(s):  
Relative Abundance ◽  
Natural Enemies ◽  
Wolf Spider ◽  
Stem Borer ◽  
Carabid Beetle ◽  
Growth Stages ◽  
Stem Borers ◽  
Ladybird Beetle ◽  
Yellow Stem Borer ◽  
Mirid Bug

The relative abundance of different stem borer species and their natural enemies with interaction effects were studied at three growth stages of irrigated Boro rice at Madhupur under the district of Tangail, Bangladesh during January to April, 2013. Five stem borer species viz; Yellow stem borer (Scirpophaga incertulas), Pink stem borer (Sesamia inferens), Dark headed stem borer (Chilo polyhcrysus), Stripped stem borer (Chilo suppressalis), White stem borer (Scirpophaga innotata), and nine different natural enemies were collected from the rice fields and recorded. The population of stem borers and natural enemies was highest in tillering stage and lowest in seedling stage. The relative abundance of stem borer species under investigation showed ranking order; yellow stem borer >dark headed stem borer>pink borer>white borer>stripped stem borer and natural enemies as ladybird beetle >long jawed spider>wolf spider>damselfly>carabid beetle>green mirid bug>lynx spider>dragon fly>ear wig. Populations of all five stem borers were positively correlated with ladybird beetle, wolf spider, long jawed spider, lynx spider, damsel fly, dragon fly, green mirid bug and negatively correlated with carabid beetle and earwig.J. Bangladesh Agril. Univ. 12(2): 267-272, December 2014

scholarly journals Kecepatan dan Hambatan Rekolonisasi Musuh Alami Setelah Aplikasi Insektisida di Pertanaman Padi

Agrikultura ◽  
2016 ◽  
Vol 27 (1) ◽  
Author(s):  
Baehaki Suherlan Effendi ◽  
Eko Hari Iswanto ◽  
Dede Munawar ◽  
Nono Sumaryono
Keyword(s):  
Natural Enemies ◽  
Natural Enemy ◽  
Stem Borer ◽  
The Other ◽  
Wet Season ◽  
Insecticide Application ◽  
Yellow Stem Borer ◽  
Other Hand ◽  
Brown Plant Hopper ◽  
Sweep Net

ABSTRACTRecolonization of Natural Enemies after Insecticide Application in Rice Planting AreaThe study to assess recolonization of natural enemies after insecticide application in rice planting area was carried out in the wet season of 2013 at Karawang Regency. The application of several insecticides of rynaxypyr, fipronil, dinotefuran, pymetrozine, imidacloprid, and BPMC was conducted when brown plant hopper population was rising and yellow stem borer flight was occurring. Observation of natural enemies was carried out on 1, 3, 5, 7, 10, 15, and 21 days after application (DAA) using sweep net for 4 swings per plot. The results showed that spiders were relatively safe to the rynaxypyr and fipronil insecticides with hampered recolonization index (HRI) of very light and light where recolonization occurred on 1 DAA. All tested insecticides highly affected Telenomus rowani with HRI of heavy to very heavy that this parasitoid recolonized at 7 DAA. On the other hand, all insecticides showed low influence on the recolonization of Tetrastichus schoenobii with HRI from unhampered to light hamper and the recolonization occurred on 1 DAA. The effect of rynaxypyr, fipronil, imidacloprid and BPMC application on Oligosita sp. and Anagus sp. recolonization was categorized to be low with HRI of light hamper that the recolonization happened at 1 DAA and 5 DAA, respectively. The insecticides of fipronil and BPMC were considered to slightly hamper the chironomid with the light value of the HRI and the chironomid recolonized at 1 DAA on fipronil and 3 DAA on BPMC.Keywords: Effect of insecticides, Recolonization of natural enemy, RiceABSTRAKPenelitian rekolonisasi musuh alami setelah aplikasi insektisida di pertanaman padi dilakukan pada musim hujan 2013 di Kabupaten Karawang. Aplikasi insektisida berbahan aktif rinaksipir, fipronil, dinotefuran, pimetrozin, imidakloprid, dan BPMC dilakukan saat populasi hama wereng coklat meningkat, sementara penerbangan penggerek batang padi kuning sedang berlangsung. Pengamatan terhadap musuh alami menggunakan jaring serangga sebanyak 4 ayunan per petak pada 1, 3, 5, 7, 10, 15, dan 21 hari setelah aplikasi (HSA). Hasil penelitian menunjukkan bahwa laba-laba relatif aman terhadap insektisida rinaksipir dan fipronil dengan nilai indeks hambatan rekolonisasi (IHR) kedua insektisida tersebut sangat ringan dan ringan dengan kecepatan rekolonisasi laba-laba pada 1 HSA. Semua insektisida menekan sangat tinggi terhadap Telenomus rowani dengan IHR berat sampai sangat berat dan rekolonisasi parasitoid tersebut dinilai lambat yaitu 7 HSA. Insektisida menekan sangat rendah terhadap Tetrastichus schoenobii dengan IHR dari tidak ada hambatan sampai hambatan ringan dan kecepatan rekolonisasinya terjadi pada 1 HSA. Tekanan insektisida rinaksipir, fipronil, imidakloprid, dan BPMC terhadap Oligosita sp. dan Anagus sp. agak rendah dengan IHR ringan dan kecepatan rekolonisasi Oligosita sp. pada 1 HSA dan Anagrus sp. pada 5 HSA. Insektisida fipronil dan BPMC agak menekan chironomid dengan nilai IHR ringan dan kecepatan rekolonisasi 1 HSA pada fipronil dan 3 HSA pada BPMC.Kata Kunci: Pengaruh Insektisida, Rekolonisasi musuh alami, Padi

scholarly journals Diversity and Seasonal Fluctuations of Arthropod Fauna in Bangladesh Deepwater Rice

2014 ◽  
Vol 17 (1-2) ◽  
pp. 75-104 ◽  
Author(s):  
David Catling ◽  
Zahirul Islam
Keyword(s):  
Seasonal Fluctuation ◽  
Stem Borer ◽  
Deepwater Rice ◽  
Yellow Stem Borer ◽  
Arthropod Fauna ◽  
Suction Sampler ◽  
Formed Part ◽  
Rice Ecosystem ◽  
Lower Plant ◽  
Flooding Period

An intensive study of the diversity of arthropod fauna in Bangladesh deepwater rice ecosystem from 1977 to 1980 revealed: 139 phytophages, 75 predators, 75 parasitoids and 44 scavengers identified to species level. Adding those forms identified to family/subfamily brought the total to 375 species. Insecta comprised 354 species belonging to more than 100 families. This is a conservative estimate since the main sampling methods used, sweepnetting and the rearing of parasitoids, is fairly effective for mid- and upper canopy forms, but is not effective for collecting fauna in the benthos, neuston and lower plant canopy for which a suction sampler is necessary.There was a marked seasonal fluctuation in numbers and composition of the fauna due mainly to the nature of the deepwater rice plant and the annual flooding pattern. The preflood period was conducive to moderate buildups of some canopy-living insects. In the flooding period the numbers of many arthropods crashed precipitously and never recovered (eg leafhoppers and planthoppers). Those forms adapted to deep flooding continued at moderate levels (eg acridids, green leafhopper), while a few arthropods were able to increase their numbers (eg tettigonids, yellow stem borer and spiders). Spiders, the most abundant predator group, were numerous at all times even during deep flooding and they probably limited the numbers of leafhoppers, planthoppers and some other pests. In addition, 75 parasitoids formed part of the faunal community and attacked many phytophages.DOI: http://dx.doi.org/10.3329/brj.v17i1-2.20903Bangladesh Rice j. 2013, 17(1&2): 75-104

scholarly journals ANALISIS KORELASI DAN REGRESI DINAMIKA POPULASI HAMA DAN MUSUH ALAMI PADA BEBERAPA VARIETAS UNGGUL PADI SETELAH PENERAPAN PHT DI KABUPATEN BONE PROVINSI SULAWESI SELATAN

2015 ◽  
Vol 22 (1) ◽  
pp. 29
Author(s):  
Asriyanti Ilyas
Keyword(s):  
Regression Analysis ◽  
Natural Enemies ◽  
Stem Borer ◽  
Nilaparvata Lugens ◽  
Rice Varieties ◽  
Correlation And Regression Analysis ◽  
Arthropod Predators ◽  
Positive Correlation Coefficient ◽  
Rice Ecosystem ◽  
High Degree

<div data-canvas-width="788.5133333333328">Different types of rice pests, have been reported. The explosions and a potential pests are Rice Stem Borer (Tryporiza</div><div data-canvas-width="802.6483333333334">sp.), Brown Planthoppers (Nilaparvata lugens), Green Leafhoppers (Nephotettix virescens), and Rats (Rattus sp.), wich</div><div data-canvas-width="802.7016666666667">an obstacle in creating stability of rice production in Bone. In rice ecosystem, natural enemies of arthropod predators</div><div data-canvas-width="802.703333333333">are most instrumental in suppressing the pest population. Fluctuation in population density of natural enemies, affecting</div><div data-canvas-width="802.6466666666668">pests presence. Efforts to suppress pest proportions through IPM, is a strategy of lowering the level of pests and damage</div><div data-canvas-width="802.6933333333333">to rice crops. This study aims to identify and measure the relationship strength between pests and natural enemies</div><div data-canvas-width="802.6733333333332">populations in some rice varieties after IPM, using correlation and regression analysis. Observations conducted in Bone,</div><div data-canvas-width="802.6600000000001">from May to August 2012, with 2 observed variables, pests and natural enemies populations in Inpari 6, Inpari 10, Inpari</div><div data-canvas-width="802.6633333333332">16, Ciherang, Cigelis, and Mekongga. Data analysis were performed using correlation and regression analysis. The</div><div data-canvas-width="802.6833333333332">results showed a high degree of correlation between pest and natural enemies (predators) populalions, characterized by</div><div data-canvas-width="802.7066666666666">a positive correlation coefficient (0.957) and significant at the level of 0.01, where each increase in the intensity of pest</div><div data-canvas-width="564.7166666666665">populations, will be followed by increase in the number of natural enemies captured.</div>

scholarly journals IMPACT OF ECOLOGICAL ENGINEERING ON THE TYPE AND POPULATION OF PESTS, NATURAL ENEMIES, AND YIELDS OF THE RICE

2020 ◽  
Vol 20 (2) ◽  
pp. 140-149
Author(s):  
N Usyati ◽  
Nia Kurniawati ◽  
Oco Rumasa
Keyword(s):  
Natural Enemies ◽  
Block Design ◽  
Ecological Engineering ◽  
Stem Borer ◽  
Flowering Plants ◽  
Crop Damage ◽  
Wet Season ◽  
Yellow Stem Borer ◽  
Rice Yields ◽  
The Impact

Impact of ecological engineering on the type and population of pests, natural enemies, and yields of the rice. This study was performed to investigate the impact of the ecological engineering in the rice field on the crop damage caused by yellow stem borer, including it’s type and population as well as its natural enemies and the yields of the rice. The study was conducted in farmer’s fields in Subang District in the dry and the wet seasons. The research was arranged using Randomized Complete Block Design (RCBD) with 9 treatments and 3 replications. The observation was conducted on the crop damage caused by yellow stem borer, the type and the population of pests insect, its predator, and parasitoid as well as yields of the rice. The planting of flowering plants and crops showed inconsistent effect on the population of brown planthoppers, white-backed planthoppers, and rice black bug. Moreover, it also not significantly impact the yellow stem borer. The planting of flowering plants and crops did not affect the rice yields. The parasitization level of the parasitoid was in ranged of 47.32–50.47% (dry season) and 36.37–53.92% (wet season). The neutral insect population was dominant at the beginning of planting (11–1743), meanwhile at the maximum tillering until the harvest was dominated by predators (9.33–131.33). The parasitoids were relatively contrasted on each stage of the rice plant.

scholarly journals Influence of abiotic factors on stem borer incidence and species distribution in rice (Oryza sativa L.)

2021 ◽  
Vol 42 (4(SI)) ◽  
pp. 1136-1133
Author(s):  
T. Sharmitha ◽  
◽  
C.G.L. Justin ◽  
S.S.J. Roseleen ◽  
◽  
...  
Keyword(s):  
Relative Humidity ◽  
Wind Velocity ◽  
Relative Abundance ◽  
Abiotic Factors ◽  
Light Trap ◽  
Stem Borer ◽  
Seasonal Incidence ◽  
Yellow Stem Borer ◽  
Rice Ecosystem ◽  
Trap Catches

Aim: To evaluate the effect of abiotic factors such as temperature, relative humidity, wind velocity, sunshine hours and rainfall on the distribution and relative abundance of stem borer species in rice ecosystem. Methodology: Seasonal incidence of stem borer species was monitored using light trap catches and were correlated with the weather parameters. The relative abundance of stem borer species during Kharif and Rabi was estimated based on light trap catches and larval incidence. Results: Seasonal incidence revealed the occurrence of three stem borer species (yellow stem borer, pink stem borer and dark headed borer) populations in rice ecosystem. Yellow stem borer was found to dominate in rice ecosystem during Kharif, (80.61%) whereas during Rabi, pinkstem borer was found to be dominant (72.60%) than yellow stem borer (21.92%) and dark headed borer (5.48%). Weather parameters such as temperature, rainfall and wind velocity negatively influenced the occurrence of stem borer species in rice, whereas relative humidity and sunshine hours had positive effect. Regression analysis revealed the increased effect of abiotic factors such as temperature, relative humidity and wind velocityon the population of pink stem borer against yellow stem borer and dark headed borer. Interpretation: The present study reveals that, the change in weather parameter during seasons, such as temperature (25 - 27°C), relative humidity (69 - 80 %) and wind velocity (3 - 4 km hr-1) increased the fitness of pink stem borer species population than yellow stem borer and dark headed borer species in rice ecosystem, which was evidenced by the occurrence and relative abundance of pink stem borer population during Kharif 2018 and Rabi 2019 respectively.

Sign in / Sign up

Export Citation Format

Share Document