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Dr. Rajendra Prasad Central Agricultural University, Pusa

In the imperial Gazetteer of India 1878, Pusa was recorded as a government estate of about 1350 acres in Darbhanba. It was acquired by East India Company for running a stud farm to supply better breed of horses mainly for the army. Frequent incidence of glanders disease (swelling of glands), mostly affecting the valuable imported bloodstock made the civil veterinary department to shift the entire stock out of Pusa. A British tobacco concern Beg Sutherland & co. got the estate on lease but it also left in 1897 abandoning the government estate of Pusa. Lord Mayo, The Viceroy and Governor General, had been repeatedly trying to get through his proposal for setting up a directorate general of Agriculture that would take care of the soil and its productivity, formulate newer techniques of cultivation, improve the quality of seeds and livestock and also arrange for imparting agricultural education. The government of India had invited a British expert. Dr. J. A. Voelcker who had submitted as report on the development of Indian agriculture. As a follow-up action, three experts in different fields were appointed for the first time during 1885 to 1895 namely, agricultural chemist (Dr. J. W. Leafer), cryptogamic botanist (Dr. R. A. Butler) and entomologist (Dr. H. Maxwell Lefroy) with headquarters at Dehradun (U.P.) in the forest Research Institute complex. Surprisingly, until now Pusa, which was destined to become the centre of agricultural revolution in the country, was lying as before an abandoned government estate. In 1898. Lord Curzon took over as the viceroy. A widely traveled person and an administrator, he salvaged out the earlier proposal and got London’s approval for the appointment of the inspector General of Agriculture to which the first incumbent Mr. J. Mollison (Dy. Director of Agriculture, Bombay) joined in 1901 with headquarters at Nagpur The then government of Bengal had mooted in 1902 a proposal to the centre for setting up a model cattle farm for improving the dilapidated condition of the livestock at Pusa estate where plenty of land, water and feed would be available, and with Mr. Mollison’s support this was accepted in principle. Around Pusa, there were many British planters and also an indigo research centre Dalsing Sarai (near Pusa). Mr. Mollison’s visits to this mini British kingdom and his strong recommendations. In favour of Pusa as the most ideal place for the Bengal government project obviously caught the attention for the viceroy.

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  • ThesisItemOpen Access
    Population dynamics and management of major sucking insect pests of cowpea (Vigna unguiculata Linn.)
    (RPCAU, Pusa, 2023) DEVI, DHARANIKOTA LALITHAMBICA; Sunil Kumar Mandal
    The present investigation entitled “Population dynamics and management of major sucking insect pests of cowpea (Vigna unguiculata Linn.)” was conducted during 2023 cropping season at Vegetable Research Farm, RPCAU, Pusa, Bihar. The study focused on survey of major insect pests of cowpea in Samastipur, Bihar to investigate the incidence of insect pests affecting cowpea. Field observations were carried out at three blocks in Samastipur district during the entire growth period of crop. The major findings acknowledged were sucking pests like aphids (19.89/10 cm twig) observed maximum in Kalyanpur block whereas whiteflies (4.83/ 3 leaves/ plant) and leafhoppers (2.82/3 leaves/plant) in Samastipur block and thrips (8.44/ 5flower buds/plant) in Pusa block. The population of pod sucking bug (5.58/plant) was highest in Samastipur block and maximum pod damage (21.26 damaged pods/100 pods) was recorded in Pusa block. The findings on population dynamics of major sucking insect pests of cowpea revealed that aphid, leafhopper and whitefly population were commenced first on 4th week of March (12th SMW) and reached its peak of 22.80 aphids/ 10 cm twig, 8.17 leafhoppers/3 leaves /plant and 11.20 whiteflies/ three leaves/plant on 3rd week of April (16th SMW). Population of thrips was commenced on 5th week of March (14th SMW) and maximum population was noted during 3rd week of April (16th SMW). The population of aphid, leafhopper, whitefly and thrips showed positive and significant correlation with maximum temperature and negative significance with relative humidity. The bioefficacy of various newer insecticides were also evaluated against sucking insect pests of cowpea. Among them, Thiamethoxam 25% WDG proved most effective causing maximum population reduction of major sucking insect pests viz., aphids, leafhopper, whitefly, and thrips followed by Imidacloprid 17.8% SL. Diafenthiuron 50% EC, Acetamiprid 20% SP, Buprofezin 25% SC, Fipronil 5% SC stood in middle order of efficacy and Dimethoate 30% EC (Standard check) had least efficacy. The maximum yield 97.26 q/ha was obtained in the plots treated with Thiamathoxam 25% WDG followed by Imidacloprid 17.8% SL (92.13 q/ha). The minimum yield of 81.10 q/ha was obtained in the plots treated with Dimethoate 30% EC (standard check).
  • ThesisItemOpen Access
    Bio-ecology and Management of Fall Armyworm, Spodoptera frugiperda S. on Kharif Maize
    (RPCAU, Pusa, 2023) DEY, AMIT; GIRI, GOURI SHANKAR
    The present study entitled “Bio-ecology and Management of Fall Armyworm, Spodoptera frugiperda S. on Kharif Maize” was conducted at the Research Farm of Tirhut College of Agriculture, Dholi, Muzaffarpur, Bihar. The research study focused on the population fluctuation of fall armyworm in relation to biotic and abiotic factors of the environment, biology, biophysical and biochemical bases resistance among genotypes against fall armyworm and management of its thorough some insecticides as seed treatment and foliar spraying. It was observed that the larva was first noticed during 30th SMW (0.20 larvae per plant) followed by adult moth during 31st SMW (2.00 moths per trap). The larval population as well as moth catches per trap reached its first peak during 37th SMW (1.45 larvae per plant and 4.50 moths per trap, respectively) during the vegetative stage and a second peak was observed during 40th SMW (1.35 larvae per plant and 4.50 moths per trap, respectively) during the reproductive stage of crop. Both larvae per plant and moth catches per trap had a positive and significant relationship with morning (r = 0.566* and 0.497*, respectively) and evening (r = 0.570* and 0.529*, respectively) relative humidity and a negative and significant relation with bright sunshine hour (r = -0.509* and -0.564*, respectively). Number of moths per trap had a positive and significant correlation with evaporation (r = 0.574*) while the larvae per plant had a negative correlation with evaporation (r = -0.748**). The predator population in maize ecosystem showed a positive and significant correlation with both trapped moths and larval population. Under laboratory conditions, the total lifecycle was completed within 32.02 and 34.47 days for male and female moth respectivelyu. The incubation period lasts for 2.60 days, larval period for 14.77 days, pupal period for 10.46 days. The lifespan of adult male was 4.18 days whereas for female adult moth it was 6.63 days. Out of 36 genotypes screened, 4 were found resistant, 22 were moderately resistant and 10 were found susceptible. Cob width had a positive and significant correlation (r = 0.335*) whereas number of husk layers had a negative and significant correlation (r = -0.820**) with per cent cob infestation. Trichome density had a negative and significant correlation (r = -0.861**) with per cent plant infestation. Biochemical parameters like total protein (r = 0.852**) and P/C ratio (r = 0.868**) had a positive and significant relation with per cent plant infestation whereas total carbohydrate (r = -0.875**), total phenols (r = -0.868**) and total chlorophyll (r = -0.836**) had a negative and significant relationship with per cent plant infestation. Plots where seeds were treated with Cyantraniliprole 19.8 % + Thiamethoxam 19.8 % @ 6 ml/kg of seed followed by application of Chlorantraniliprole 18. 5 % SC as spray @ 0.4 ml/litre at 4 weeks after germination was found most effective against fall armyworm as the per cent plant infestation (9.21 and 11.54 per cent, respectively), larval population (4.75 and 5.50 larvae per 10 plants, respectively) and mean Davis score (Davis score of 1.70 and 1.83, respectively) was found lowest in both vegetative and reproductive stage in those plots.
  • ThesisItemOpen Access
    VARIETAL PREFERENCE AND MANAGEMENT OF SWEET POTATO WEEVIL (Cylas formicarius) THROUGH BIOPESTICIDES UNDER CHANGING CLIMATE
    (RPCAU, Pusa, 2023) KUMAR, MAHENDER; Alam, Tanweer
    The present investigation "Varietal Preference and management of sweet potato weevil (Cylas formicarius) through biopesticides under changing climate" was conducted during the Kharif season 2022 at the Research farm of Tirhut College of Agriculture, Dholi, Muzaffarpur, Bihar. The study focused on the evaluation of different varieties of sweet potatoes upon the attack of the sweet potato weevil, Cylas formicarius, the effect of meteorological parameters as well as bio-physical characteristics of different varieties. Also, the effect of different bio-pesticide on sweet potato weevil had been studied. Among different varieties evaluated during this trial, Rajendra Shakarkand-07 (29.70 %) and Rajendra Shakarkand-47 (29.24 %) have performed well with lesser vine infestation as well as tuber infestation of weevil. In the first case, the Rajendra Shakarkand-5 (19.90 %) showed the least mean per cent vine infestation as well as tuber infestation whereas, the Cross-4 (46.13 %) variety showed maximum damage regarding mean per cent vine and tuber infestation. In the second case, the biophysical basis evaluation had been conducted. There no significant relationship between different plant and tuber characteristics had been established except tuber infestation with the depth of the tuber (-0.126*) and their neck length (-0.072NS). The shape of the tubers also affected the infestation of weevil in the tubers. Also, the girth of the vine or vine thickness is affected by the weevil damage or mean percent vine infestation. In the third case, the efficacy of various bio-pesticide along with conventional usage of chemical pesticides have been evaluated. Among the bio-pesticides, Beuvaria bassiana (61.42 %) gives the best output along with Heterorhabitdis bacteriophora (53.16 %). They also give the second and third highest benefit-cost ratio among all treatments. The conventional usage of chlorpyriphos 20 % EC (2.8:1) gives the best output, but in this case, the output of Beuvaria bassiana (2.4:1) and Heterorhabitdis bacteriophora (2.1:1) are comparable with the conventional usage. So, it may be used as an alternative to the conventional (2.8:1) or regular pesticides.
  • ThesisItemOpen Access
    BIO-INTENSIVE MANAGEMENT OF MUSTARD APHID Lipaphis erysimi (Kalt.)
    (RPCAU, Pusa, 2023) SINGH, HAMENDRA; Mukherjee, U.
    The present investigation entitled “Bio-intensive Management of Mustard aphid Lipaphis erysimi (Kalt.)” was conducted during 2022-23 cropping season at Research Farm of Tirhut College of Agriculture, Dholi, Muzaffarpur, Bihar. The study focused on evaluation of 42 Brassica genotypes for their Resistance or susceptibility against mustard aphid (Lipaphis erysimi) and to check the efficacy of some botanicals and entomopathogens against mustard aphid population in field conditions. During the screening of 42 Brassica genotypes, overall mean population of aphids per top 10 cm of inflorescence ranged from 41.82 to 137.79. The genotypes KMR(E) 21-1 and KGMH 9198 were infested with minimum and maximum numbers of aphid population, respectively. whereas, susceptible and resistant check varieties Yellow sarson (66-197-3) and Kranti had aphid population of 137.48 and 43.48 aphids/top 10 cm of inflorescence, respectively. Based on aphid infestation index (AII), 42 genotypes were categorized into five groups viz. highly resistant, resistant, moderately resistant, susceptible and highly susceptible. Two genotypes were grouped as resistant. 11 genotypes as moderately resistant, 25 genotypes as susceptible and 4 genotypes were grouped as highly susceptible. The lowest and highest AII was recorded in KMR(E) 21-1 (1.43) and KGMH 9198 (4.03), respectively. Check varieties Yellow sarson (66-197-3) and Kranti had aphid infestation index of 3.54 and 1.96, respectively. Further phenol and total sugar contents of top six promising genotypes also shown the negative and positive correlation of the aphid infestation. Molecular identification proved the east Asian strain of mustard aphid i.e., Lipaphis erysimi pseudobrassicae. The efficacy of various entomopathogens and botanicals was also evaluated against mustard aphid and its natural enemies. Among the entomopathogens and botanicals tested on mustard aphid, the per cent reduction of mustard aphid population over untreated control following the first and the second spray was the highest in Verticillium lecanii @ 5g/liter of water that is (85.33) followed by Beauveria bassiana @ 5g/liter of water (84.5%) and Metarhizium anisopliae @ 5g/liter of water (84.06%), Onion bulb extract @5% (77.24), Garlic bulb extract @5% (75.54) and Ginger rhizome extract @5% (74.11) respectively besides with higher population of natural enemies. However, chemical check Dimethoate 30EC @ 1ml/liter of water showed 93.8% reduction over control. Additionally based on B: C ratio Verticillium lecanii @ 5g/liter of water 2.24:1 was found to be better followed by Beauveria bassiana @ 5g/liter of water (2.20:1) and Metarhizium anisopliae @ 5g/liter of water (2.18:1).
  • ThesisItemOpen Access
    Germplasm Screening and Management of Coriander Aphid, Hyadaphis coriandri D.
    (Dr.RPCAU, Pusa, 2021) DAS, TUHIN; Prasad, Rabindra
    A sets of field experiments were conducted at the Tirhut College of Agriculture research farm at Dholi, Muzaffarapur, (Bihar) from November to March, 2020-21 to study the susceptibility of coriander germplasms to aphid infestation and the effectiveness of botanical insecticides against the coriander aphid, Hyadaphis coriandri. Through the seven weekly observations which were recorded during rabi season 2020-21, it was found that RD-416 had the lowest mean population (19.91 aphid/ plant) and RD-373 had the highest mean population (34.69 aphid/ plant). The resistance variabilities in coriander germplasms were as followed: RD-416> RD-380 > Acr-1 > RD-417 > RD-382 > RD-412 > RD-120> RD- 404 >RD-23> RD-188 > RD-379 > RD-378 > RD-383 > RD-365 > RD-407> RD-403> RD-377 > RD-366 > RD-154 > RD-373. In second objective, the combined effect of two sprayingsapplied at fortnightly interval against coriander aphid revealed that, thiomethoxam 25 WG @ 0.2g/l had lowest mean population of aphid (5.78 aphid/10 cm apical twig) and it was superior to all other treatments in terms of managing aphid population, followed by Neem Seed Kernel Extract @ 5 ml/l (14.02 aphid/10 cm apical twig) and Neem oil @ 3 ml/l (14.80 aphid/10 cm apical twig).However, Neem seed kernel extract @ 5 ml/l was found at par with neem oil @ 3 ml/l(14.80 aphid/10 cm apical twig), tobacco decoction @ 5ml/l (15.98 aphid/10 cm apical twig) and karanj oil @ 10 ml/l (16.68 aphid/10 cm apical twig) treatments. Remaining treatmentsviz.Lecanicillium lecanii@ 4 g/l (17.45aphid /10 cm apical twig) andyam Bean Seed Extract @ 5ml/l (YBSE) (18.77 aphid /10 cm apical twig) showed considerably less efficiency against coriander aphid. The plots treated with Thiomethoxam 25 WG @ 0.2g/lrecorded highest seedyield (12.95 q/ha).The seed yield obtained in the plots that were treated with Neem Seed Kernel Extract @ 5 ml/l, Neem oil @ 3 ml/l, tobacco decoction @ 5 ml/l and karanj oil @ 10 ml/l recorded 11.35 q/ha, 11.01 q/ha, 10.58 q/ha and 10.51 q/ha seed yield, respectively, and found comparable to each other and considerably superior to the other treatments.The lowest seed yield was achieved in Yam Bean Seed Extract @ 5 ml/l treatment (10.25 q/ha), followed by Lecanicillium lecanii@ 4 g/l (10.37 q/ha), which was statistically at par with one another. Thiomethoxam 25 WG @ 0.2g/l had the highest benefit-cost ratio (2.61) followed by Neem Seed Kernel Extract @ 5ml/l (1.99) and Neem oil @ 3ml/l (1.86). The treatment with Lecanicillium lecanii@ 4 g/l resulted the lowest benefit-cost ratio (1.59), followed by Yam Bean Seed Extract @ 5m/l, Karanj oil @ 10 ml/l and Tobacco decoction @ 5ml/l, which resulted benefit-cost ratios of 1.61, 1.66, and 1.75, respectively.
  • ThesisItemOpen Access
    Population dynamics and management of red pumpkin beetle (Aulacophora spp) on bottle gourd under polyhouse
    (Dr.RPCAU, Pusa, 2021) GADIGE, T SHANKAR; Singh, Mukesh Kumar
    The present investigation entitled “Population dynamics and management of red pumpkin beetle (Aulacophora spp) on bottle gourd under polyhouse” was conducted during summer season of the year 2021 at High-Tech Horticulture, RPCAU, Pusa. During the course of studies, bottle gourd was attacked by many insect pests like red pumpkin beetle (Aulacophora foveicollis Lucas), thrips (Thrips tabaci Lindquist), aphids (Aphis gossypii Glover), pumpkin caterpillar (Diaphania indica Saunders), serpentine leaf miner (Liriomyza brassicae Burgess), mealy bug (Phenacoccus solenopsis Tinsley), semilooper (Achaea janata Linnaeus) and fruit fly (Bactocera cucurbitae Coquillet). In which red pumpkin beetle is more frequent occurring pest and it was first observed at 2 leaf stage, then it increases gradually as the plant canopy increases. The flowers were more preferable attacked part as compared to leaves of bottle gourd at reproductive stage. It causes significant damage in both vegetative and reproductive stages of the crop. Population of insect pest other than red pumpkin beetle are appeared in trace number. Polyphagous natural enemies observed on bottle gourd are lady bird beetle (Coccinella sp.), reduviid bug (Rhynocoris fuscipes) and Lynx spider (Oxyopes javanus). These natural enemies are preyed upon several soft bodied insects but not much prefers adult red pumpkin beetle due to its bright colour, chitinous elytra and larval stage of red pumpkin beetle are inside the soil, so it could not be observed. Among the different management tactics tested against red pumpkin beetle on bottle gourd, T6 (Chlorantraniliprole 18.5% SC @ 0.4ml/l) followed by T1 (Beauveria bassiana @ 3g/l (1x108 CFU) were found more effective in suppressing red pumpkin beetle population under polyhouse and recorded with high yield of 380.30 q/ha and 373.60 q/ha, respectively in Hybrid-Kashi Bahar variety of bottle gourd. T5 (YBSE @ 5%) was found least effective and recorded with a low yield of 351.98 q/ha.
  • ThesisItemOpen Access
    POPULATION DYNAMICS AND MANAGEMENT OF MAJOR INSECT PESTS ON BLACK GRAM
    (Dr.RPCAU, Pusa, 2021) N, SRIKANTH; AHMAD, MD. ABBAS
    A study was taken up on “Population dynamics and management of major insect pests on black gram” at Research Farm, Tirhut College of Agriculture, Dholi (Muzaffarpur) in summer, 2021. The black gram variety SML 613 was taken as a test variety for the research programme. The observations recorded showed up to six species as major pests in black gram. Whitefly was first seen starting at 11th standard week (1.02 whiteflies/ 5 plants) which increased slowly and attained maximum population (16.4 whiteflies/ 5 plants) during 18th standard week whereas the incidence of thrips on 14th standard week (2.40 thrips/ 5 inflorescences) followed by gram pod borer and bean bug during 15th standard week and green plant bug and pod bug started from 16th standard week and maximum numbers were found at 18th week in whitefly (16.40) and green plant bug (2.15) and 19th week in thrips(15.71), gram pod borer (12.07), pod bug (3.60) and bean bug (2.67) after which the population was observed to be decreasing up on crop maturity. The relative abundance of different pest species of black gram was found to as, whitefly dominant throughout the crop period which was observed starting early stages of crop growth which was followed by thrips and gram pod borer which were found to be dominating during flowering and pod formation stage later on which the dominance of pod sucking bugs viz., green plant bug, pod bug and bean bug were found dominating among the pest complex. All the major insect pests observed were positively correlated to maximum and minimum temperature with whitefly, thrips as well as gram pod borer were significantly positively correlated. Whereas Evening relative humidity was having a significant negative impact on all the major pests except pod bug and bean bug which were non-significant but negative. All treatments proved superior significantly with control to reduce whitefly, thrips and gram pod borer. It was ranging from 32.21 to 77.11 per cent, 32.44 to 81.54 per cent and 19.79 to 76.97 per cent reduction over control in whitefly, thrips and gram pod borer among different treatments among which diafenthiuron 50 WP @ 0.125% was recorded significantly superior over others in managing whitefly (77.11%), thrips (81.54%) and gram pod borer (76.97%). The lowest pod damage was observed in diafenthiuron 50 WP (3.16%) which was succeeded with imidacloprid 17.8 SL (4.28%) and maximum was found to be in seed treated with imidacloprid 70 WS. Highest seed yield (859 kg/ha) was recorded with diafenthiuron 50 WP which is statistically superior among all treatments with maximum returns benefited with a highest cost-benefit ratio of 4.92:1 which was in close range with thiamethoxam 25 WG with 4.78:1. The residues of imidacloprid 17.8 SL and thiamethoxam 25 WG quantified with HPLC showed LOQ of 0.05 mg kg-1. Henceforth, safe consumption of black gram seeds following good agricultural practices (GAP) was suggested with a PHI of 28 days.
  • ThesisItemOpen Access
    Population dynamics and management of fall armyworm, Spodoptera frugiperda (J.E. Smith) on rabi maize
    (Dr.RPCAU, Pusa, 2021) M N, SHIVAKUMARA; Alam, Tanweer
    The studies on “Population dynamics and management of fall armyworm, Spodoptera frugiperda (J.E. Smith) on rabi maize” was carried out under field conditions during Rabi 2020-21 at Agricultural Research Farm, Tirhut College of Agriculture, Dholi, Muzaffarpur, which is a sub-campus of Rajendra Prasad Central Agricultural University, Pusa, Samastipur, Bihar. The experimental outcome revealed that number of larval population and per cent leaf damage of fall armyworm was started from 3rd standard week of January to the third week of May. The peak activity of fall armyworm was observed in 12th SMW of March 2021 with mean larval population and per cent mean leaf damage of (4.8 larvae/plant) and (46.0% of per cent leaf damage/plant) respectively, with the corresponding maximum temperature (35.6 oC), minimum temperature (17.7 oC), R.H. (%) at 07 (85.4%) and 14 hrs (46.2%), and rainfall (0.0 mm). Efficacy of insecticides tested against fall armyworm, after three successive sprays, revealed that Chlorantraniliprole 18.5 SC @ 0.4ml/l was found most effective insecticide, with lowest mean larval population of (0.40 larvae/plant), and damage severity of (1.67/ plant), with maximum grain yield of (7.59 t/ha), and highest benefit cost ratio of (4.60:1), followed by Emamectin benzoate 5SG@ 0.15g/l, Lambda-cyhalothrin 9.5% + Thiamethoxam 12.6% ZC@ 0.25ml/l, Lambda-cyhalothrin 5EC@ 1ml/l were found effective insecticides than Azadirachtin 0.15% EC (1500ppm)@ 5ml/l, and carbofuran 3G@ 0.50g/plant, Beauveria bassiana 2.5WP@ 2g/l were found least effective insecticides among all other treatments. The most common recorded predators during experiment were Coccinellids (Coccinella transversalis) with highest individual species (%) of (38.54%), followed by ants (Oecophylla smaragdina) (28.49%), earwigs (Doru luteipes and Forficula spp.and Euborellia annulipes) (21.51%), predatory stink bug (Eocanthecona furcellata) (6.98%), and assassin bug (Rhynocoris marginatus) (5.23%).
  • ThesisItemOpen Access
    Studies on life table and Efficacy of different edible/non edible oils against Callosobruchus chinensis L. on mung bean
    (DRPCAU, PUSA, 2021) C, RAVIVARMAN; Rai, A. K.
    The studies on life table and efficacy of different edible/non-edible oils against Callosobruchus chinensis L. on mung bean were conducted under laboratory conditions in the Department of Entomology, DRPCAU, Pusa, Samastipur, Bihar during year 2021. The mean number of eggs laid per female were 52.05 eggs per 100 seeds. The net reproductive rate (11.84 females/female), mean length of generation (42.80 days), intrinsic rate of increase (0.0577 females/♀/day), finite rate of increase (λ) (1.060 females/♀/day), doubling time (11.896 days), weekly rate of increase (1.504 times) and hypothetical F2 females (140.18) were calculated in age specific life table of population concern. The k value (mortality) was observed in egg stage (0.0862) followed by larval (0.075) and pupal (0.068) period. The K value (mortality) was 0.2291 in stage specific life table. The maximum size was measured in chickpea 58.22 mm2 that had grain damage and weight loss percentage as 33.80 and 38.87, respectively. The size of pigeonpea was measured as 34.84 mm2 with its grain damage and weight loss percentage was 42.00 and 35.86, respectively. Size of the pea grain was measured as 48.39 mm2 that was having the grain damage and weight loss as 59.80 and 46.24 per cent, respectively. The lentil was having lowest grain size as 12.22 mm2 with its grain damage and weight loss as 4.40 and 3.38 per cent, respectively. The oils based on LC50 were arranged as sunflower oil > sesame oil > castor oil > neem oil > karanj oil > groundnut oil > mustard oil > turmeric leaf oil. The oils based on toxicity were arranged as turmeric leaf oil > mustard oil > groundnut oil > karanj oil > neem oil > castor oil > sesame oil > sunflower oil. The oils based on oviposition inhibition were arranged as turmeric leaf oil > karanj oil > sunflower oil > neem oil > groundnut oil > castor oil > mustard oil > sesame oil. The data of age and stage specific life table will be useful for efficient management of C. chinensis on mung bean as it gives precise time of infestation. The data of toxicity could be utilized for different degree of infestation caused by C. chinensis on pulses.