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Papers by sujay hurali

JOURNAL OF EXPERIMENTAL ZOOLOGY INDIA

The Pharma Innovation Journal, 2021

Paddy is an important food crop of the world including India. Under field condition, the producti... more Paddy is an important food crop of the world including India. Under field condition, the productivity of rice is affected by many biotic and abiotic factors. Among the different biotic constraints, diseases caused by fungal pathogens such as blast and sheath rot, stem rot, grain discoloration are more frequent and ferocious disease in irrigated rice of both temperate and subtropical areas and which cause damage at all stages of crop growth. Blast, sheath rot, stem rot and grain discoloration are major constrain of paddy production reported to cause extensive damage in crop production. An experiment was conducted to assess the Bio-efficacy and Phytotoxicity of Thiophanate methyl 41.7% SC against blast, sheath rot, stem rot and grain discoloration diseases of Paddy at ARS, Gangavathi. Results revealed that, among the various treatments evaluated, Thiophanate methyl 41.7% SC @ 1200 ml/ha (T3) and Thiophanate methyl 41.7% SC @ 960 ml/ha (T2) were found to be the best treatments to control blast, sheath rot, stem rot and grain discoloration during both the seasons. The phyto-toxic effects such as leaf necrosis, leaf tip injury, wilting, vein clearing, epinasty and hyponasty were recorded on ten randomly selected plants of Rice from each plot at 3 and 5 days after application (DAA) and it was noticed that no phyto-toxicity were recorded with foliar application of Thiophanate methyl 41.7% SC at all the concentrations tested i.e. 1200, 1920 and 2400 ml/ha dose during both the seasons.

Supervised field trials were conducted during rabi and kharifseasons to evaluate the dissipation ... more Supervised field trials were conducted during rabi and kharifseasons to evaluate the dissipation pattern of chlorantraniliprole 18.5% SC in the paddy ecosystem. Modified QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) method was used for the extraction and clean-upof chlorantraniliprole residues and determined using LC-MS/MS in the ESI positive mode. The limit of quantification (LOQ) was 0.01 µg g− 1for paddy leaf, straw, husk, and brown rice, and for soil was 0.005 µg g− 1. The obtained average recoveries were 84.30–88.92%, 94.25–97.81%, 90.21–93.38%, 93.57–96.40% and 89.93–91.14% from paddy leaf, straw, husk, brown rice and soil, respectively. The relative standard deviation was less than 9% in all the matrices. The residues in paddy leaf dissipated within 35 to 40 days with a half-life of 4.33–5.07 days in rabi and 3.92– 4.86 days in kharifat 30 and 60 g a.i. ha− 1, respectively. The residues in soil dissipated within 15–21dayswith a half-life of 14.44–15.75 and 13.33–1...

Journal of Biological Control, 2010

Nomuraea rileyi (Farlow) Samson is a potential entomopathogenic fungus against lepidopteran pests... more Nomuraea rileyi (Farlow) Samson is a potential entomopathogenic fungus against lepidopteran pests. This was formulated as wettable powder and oil-based formulations to increase its efficiency in the field by using different carrier materials and oils and these were evaluated in the laboratory against two important noctuid pests, Helicoverpa armigera (Hubner) and Spodoptera litura (Fabricius). Among the wettable powder formulations of N. rileyi, viz. , bentonite + glucose (7:1), talc + glucose (7:1), bentonite + sucrose (7:1) and talc + sucrose (7:1) recorded 87.0, 74.0, 72.0, 83.0 and 75.0 per cent mortality in S. litura and 79.0, 70.0, 66.0 and 88.0 per cent in H. armigera , respectively. The oil-based formulations (tank mix) with pongamia oil, sunflower oil, sesame oil and groundnut oil recorded 74.0, 90.0, 83.0 and 87.0 per cent mortality in S. litura and 73.0, 89.0, 87.0 and 87.0 per cent in H. armigera , respectively.

International Journal of Current Microbiology and Applied Sciences, 2020

International Journal of Chemical Studies, 2020

Bioefficacy of new formulation of carbofuran 3CG were tested in the field condition against stem ... more Bioefficacy of new formulation of carbofuran 3CG were tested in the field condition against stem borer and leaf folder in paddy during kharif 2017 and 2018 at Agricultural Research Station, Gangavathi, and Karnataka. The results confirmed that carbofuran 3CG is an effective chemical in reducing the pest population. Three doses of carbofuran 3CG (750, 1500 and 3000 g.a.i/ha) were tested along with the fipronil 5% SC, carbosulfon 25% EC and cartap hydrochloride 4G. among the treatments carbofuran 3CG @ 3000 g.a.i./ha effectively reduced stem borer (2.25 and 2.41% of white ears) and leaf folder infestation (0.34 and 0.37 larvae/hill) and increased grain yield during both the years as compared to untreated check.

International Journal of Current Microbiology and Applied Sciences, 2019

International Journal of Current Microbiology and Applied Sciences, 2020

Journal of entomology and zoology studies, 2020

Screening of paddy genotypes against Brown planthopper (BPH) and Whitebacked planthopper (WBPH) u... more Screening of paddy genotypes against Brown planthopper (BPH) and Whitebacked planthopper (WBPH) under field condition was undertaken at ARS. About hundred genotypes were screened under field condition, in which 26 genotypes showed resistance reaction to planthoppers with a damage score of 3 and 5 and remaining found to be susceptible and highly susceptible to the planthoppers with a damage score 7 and 9. It was visualized that the planthoppers were settled at the base of the crop genotypes. In general the population of planthopper was recorded on the resistant and moderately resistant varieties less compared to susceptible varieties.

Journal of Pharmacognosy and Phytochemistry, 2020

A field experiment was carried out to evaluate the bioefficacy of profenophos 50% EC against leaf... more A field experiment was carried out to evaluate the bioefficacy of profenophos 50% EC against leaf folder, Cnaphalocroris medinalis, stem borer Scirphophaga incertulas and green leafhopper, Nephotettix spp. on paddy. In the present experiment the efficacy of three doses of profenophos viz., 800, 1000 and 1200 ml/ha, cartap hydrochloride 50% SP @1000 g/ha, fipronil 5% SC @1000g/ha, monocrotophos 36% SL 1250 ml/ha and chlorpyrifos 20% EC1250 ml/ha were studied. The results confirm that cartap hydrochloride was the best treatment in reducing leaf folder (0.56 leaf folder/hill) and stem borer (0.55 dead heart/hill) whereas profenophos @ 1200 ml/ha was found superior in reducing leafhopper population effectively (96.33 hoppers/hill).

Pink bollworm is a serious pest of Bt cotton. Current techniques employed for PBW management have... more Pink bollworm is a serious pest of Bt cotton. Current techniques employed for PBW management have difficulty in bringing down its drastic damage levels. ‘SPLAT’ is a new strategy against this pest, in which males are confused by employing synthetic pheromone in higher concentration to mask the natural source. Trials were conducted using a wax based formulation, “Specialized Pheromone and Lure Application Technology” (SPLAT) to dispense and release the PBW sex pheromone. The field experiment was conducted at Kurudi village, Manvi taluk, Raichur district, Karnataka during Kharif 2017, with different treatments like sleeve trap and delta sticky trap at recommended dosage for mass trapping and SPLAT at three different doses of 500, 750 and 1250 g per acre, each treatment implemented in one acre area. Observation at weekly interval revealed that lowest rosette, green boll and locule damage of 6.38, 6.86 and 12.28 per cent was recorded in SPLAT @ 500 g per acre compared to 16.01, 19.41 an...

The study of biology of pink bollworm was carried out in the Climate Change Laboratory, Universit... more The study of biology of pink bollworm was carried out in the Climate Change Laboratory, University of Agricultural Sciences, Raichur during 2017-18 in BOD incubator under controlled conditions of temperature, 27±2°C and relative humidity of 65±5 per cent wherein the larvae were reared on Bt cotton bolls and okra fruits. Considerable variation in larval period of Pectinophora gossypiella (Saunders) feeding on different host plants was recorded. The shorter larval period of 23.50± 1.45 days was recorded when the larvae were fed okra fruits, whereas the longer larval period of 26.10±0.66 days was observed on Bt cotton. Generally, female lived longer than males in the present study on both the hosts. The females that were fed on okra laid maximum number of eggs (125.95 eggs/female) as compared to those on Bt cotton (103.8 eggs/female). The total life cycle of P. gossypiella from egg to death of adult varied on two hosts, which was significantly longer on Bt cotton (46.82 days) than on o...

Journal of entomology and zoology studies, 2018

An experiment was conducted on the efficacy of selective insecticides against cucumber moth, Diap... more An experiment was conducted on the efficacy of selective insecticides against cucumber moth, Diaphania indica Saunders on bitter gourd under randomized block design at student farm, College of Agriculture, Raichur, Karnataka during rabi, 2016-2017. The objective of this study was to investigate the most effective insecticide against the Diaphania indica population. Different groups of chemicals were selected and the treatments were imposed as foliar sprays by using a hand compression knapsack sprayer of about 500 lit/ ha spray fluids against the cucumber moth. Among the different newer molecules, chlorantraniliprole 18.5% SC at 0.2ml/l, flubendiamide 48% SC at 0.15 ml/l and spinosad 45 SC at 0.12ml/l recorded high per cent reduction of D. indica population of 86.85, 79.36 and 75.22 per cent, respectively when compared to emamectin benzoate 5% SG at 0.2g/l (64.17%), dichlorvos 76% EC at 0.5ml/l (61.08%), Azadirachtin 1500 ppm at 3ml/l (53.09%) and Bacillus thuringiensis 2ml/l (49.48%...

A field experiment was conducted to determine the comparative efficacy of some newer insecticides... more A field experiment was conducted to determine the comparative efficacy of some newer insecticides with some conventional insecticides against in rice during kharif 2016 and kharif 2017. The treatments were: T1- Tolfenpyrad 15% + bifenthrin 7.5% SE @ 500 ml/ha; T2- Tolfenpyrad 15% + bifenthrin 7.5% SE @ 625 ml/ha; T3- Tolfenpyrad 15% + bifenthrin 7.5% SE @ 750 ml/ha; T4- Tolfenpyrad 15 % EC @ 1000 ml/ha; T5- Chlorantraniliprole 18.5% SC @ 150 ml/ha; T6- Bifenthrin 10%EC @ 500 ml/ha; T7- Untreated check. All the tested chemicals are effective for different pests in rice, but among the tested insecticide molecules tolfenpyrad 15% + bifenthrin 7.5% SE @ 750 ml/ha, tolfenpyrad 15% + bifenthrin 7.5% SE @ 625 ml/ha, tolfenpyrad 15%EC @ 1000 ml/ha and chlorantraniliprole 18.5%SC @ 150ml/ha can be used for the effective management of brown plant hopper. In treatment T5-Chlorantraniliprole 18.5%SC @ 150ml/ha showed highest reduction in the percent of dead heart and white ear head damage was s...

In recent years Spodoptera exigua (Hubner) is emerging as an important pest of chickpea, especial... more In recent years Spodoptera exigua (Hubner) is emerging as an important pest of chickpea, especially in South Central India where it is an economic pest of chickpea. The management of cutworm S. exigua on chickpea was under taken in detail under field condition. The experiment was conducted to evaluate the efficacy of different biorationals and insecticides against S. exigua larvae at Main Agricultural Research Station, Raichur during Rabi, 2016-17. There were 10 treatments in the experiment the results revealed that the mean number of larvae per meter row length of crop was in the range of (0.51 to 4.00). Least number of larvae per meter row length was recorded in spinosad (0.51) which was on par with cypermethrin 0.57, followed by lambda cyhalothrin (1.97) which was on par with B. thuringiensis (2.04), M. anisopliae (2.10), N. rileyi (2.64). Highest mean number of larvae per one meter row length of crop was recorded in pongamia oil (4.00) followed by malathion (3.90), B. bassiana (...

Rice is an important food crop of India, grown over an area of 43.44 mha with a production of 112... more Rice is an important food crop of India, grown over an area of 43.44 mha with a production of 112.4 mt and with a productivity of 2.5t/ha (Anon 2016). At the current population growth rate of 1.5% the rice requirement projected by Indian Institute of Rice Research would be around 156mt by 2030. Fertilizers and irrigation are two key factors in increasing the rice productivity. The current blanket fertilizer applications followed by the farmers in Tungabhadra command in Karnataka are high and imbalanced resulting in huge losses of nutrients with reduced nutrient efficiency and International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 9 Number 6 (2020) Journal homepage: http://www.ijcmas.com

Rice is an important food crop of India, grown over an area of 43.44 mha with a production of 112... more Rice is an important food crop of India, grown over an area of 43.44 mha with a production of 112.4mt and with a productivity of 2.7t/ha (Anon 2016). In order to feed the growing population India need to produce 130mt of rice by the year 2030 according to projections by Indian Institute of Rice Research, Hyderabad. Rice is grown under different establishment methods under various agro ecological conditions. In irrigated low land system it is traditionally established by manual transplanting with continuous ponding of water in the field. Due to non availability and high cost of labour, urbanization, mechanization and shortage of water availability a shift in the planting International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 9 Number 6 (2020) Journal homepage: http://www.ijcmas.com

JOURNAL OF EXPERIMENTAL ZOOLOGY INDIA

The Pharma Innovation Journal, 2021

Journal of Biological Control, 2010

International Journal of Current Microbiology and Applied Sciences, 2020

International Journal of Chemical Studies, 2020

International Journal of Current Microbiology and Applied Sciences, 2019

International Journal of Current Microbiology and Applied Sciences, 2020

Journal of entomology and zoology studies, 2020

Journal of Pharmacognosy and Phytochemistry, 2020

Journal of entomology and zoology studies, 2018

Rice is an important food crop of India, grown over an area of 43.44 mha with a production of 112... more Rice is an important food crop of India, grown over an area of 43.44 mha with a production of 112.4mt and with a productivity of 2.7t/ha (Anon 2016). In order to feed the growing population India need to produce 130mt of rice by the year 2030 according to projections by Indian Institute of Rice Research, Hyderabad. Rice is grown under different establishment methods under various agro ecological conditions. In irrigated low land system it is traditionally established by manual transplanting with continuous ponding of water in the field. Due to non availability and high cost of labour, urbanization, mechanization and shortage of water availability a shift in the planting International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 9 Number 6 (2020) Journal homepage: http://www.ijcmas.com