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Govind Ballabh Pant University of Agriculture and Technology, Pantnagar

After independence, development of the rural sector was considered the primary concern of the Government of India. In 1949, with the appointment of the Radhakrishnan University Education Commission, imparting of agricultural education through the setting up of rural universities became the focal point. Later, in 1954 an Indo-American team led by Dr. K.R. Damle, the Vice-President of ICAR, was constituted that arrived at the idea of establishing a Rural University on the land-grant pattern of USA. As a consequence a contract between the Government of India, the Technical Cooperation Mission and some land-grant universities of USA, was signed to promote agricultural education in the country. The US universities included the universities of Tennessee, the Ohio State University, the Kansas State University, The University of Illinois, the Pennsylvania State University and the University of Missouri. The task of assisting Uttar Pradesh in establishing an agricultural university was assigned to the University of Illinois which signed a contract in 1959 to establish an agricultural University in the State. Dean, H.W. Hannah, of the University of Illinois prepared a blueprint for a Rural University to be set up at the Tarai State Farm in the district Nainital, UP. In the initial stage the University of Illinois also offered the services of its scientists and teachers. Thus, in 1960, the first agricultural university of India, UP Agricultural University, came into being by an Act of legislation, UP Act XI-V of 1958. The Act was later amended under UP Universities Re-enactment and Amendment Act 1972 and the University was rechristened as Govind Ballabh Pant University of Agriculture and Technology keeping in view the contributions of Pt. Govind Ballabh Pant, the then Chief Minister of UP. The University was dedicated to the Nation by the first Prime Minister of India Pt Jawaharlal Nehru on 17 November 1960. The G.B. Pant University is a symbol of successful partnership between India and the United States. The establishment of this university brought about a revolution in agricultural education, research and extension. It paved the way for setting up of 31 other agricultural universities in the country.

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  • ThesisItemOpen Access
    Studies on level of resistance in insect pests of stored grain against organophosphates and pyrethroid
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2019-07) Trivedi, Priyanka; Tiwari, S.N.
    An investigation was undertaken to evaluate the level of resistance in different populations of Sitophilus oryzae, Tribolium castaneum, Rhyzopertha dominica and Callosobruchus chinensis against Malathion, Dichlorvos and Deltamethrin. All the experiments were conducted in Post-Harvest Laboratory of Department of Entomology, G.B Pant University of Agriculture and Technology, Pantnagar in the year 2018-19. The population (strain) of insects were collected from different godowns situated located at Pantnagar and Dehradun (Crop Research Centre, Pantnagar; Regional Food Corporation, Dehradun; Breeder Seed Production Center, Pantnagar; Uttarakhand Seeds Tarai Development Corporation, Nagla; Uttarakhand Seeds &Tarai Development Corporation, Haldi). The collected strains of insects were exposed to different insecticides at different concentrations to determine the median lethal concentration (LC50). Based on the LC50 values, the resistance ratios of the insect strains against all the insecticides mentioned above were determined with respect to susceptible Laboratory population. The results revealed that the resistance ratios (RR) for different insect varied greatly for different insecticides when applied by dry film method viz., malathion (2.673 to 3.442), deltamethrin (1.819 to 3.305) & dichlorvos (1.885 to 2.199) for S. oryzae; malathion (4.225 to 7.771), deltamethrin (5.74 to 12.973) & dichlorvos (1.012 to1.35) for T. castaneum; malathion (1.236 to1.409), deltamethrin (1.430 to 3.456) & dichlorvos (1.225 to 2.173) for R. dominica and malathion (1.189 to 1.561), deltamethrin (1.183 to 2.211) and dicholrvos (1.078 to 1.435) in case of C. chinensis. When the insect population were exposed to seed treated with insecticides, the RR values were comparatively less viz., malathion (1.464 to 2.069), deltamethrin (1.272 to 1.895) and dichlorvos (1.973 to 2.929) for S. oryzae; malathion (1.486 to 2.141), deltamethrin (1.175 to 1.701) and dichlorvos (1.331 to 2.154) for T. castaneum; malathion (1.134 to 1.783), deltamethrin (1.291 to 1.817) and dichlorvos (1.365 to 2.341) in case of R. domininca and malathion (1.593 to 2.031), deltamethrin (1.305 to 1.673) and dichlorvos (1.494 to 2.661) for C. chinensis. It is recommended that insecticides should be applied in the godowns after studying the level of resistance in insects.
  • ThesisItemOpen Access
    Development of ecofriendly management of greater wax moth, Galleria mellonella in stored honey bee comb
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2019-08) Vinay Kumar; Mall, Pramod
    The experiment was carried out during 2018-2019 at G.B.P.U. A. & T. Pantnagar, Uttarakhand, India, for “DEVELOPMENT OF ECOFRIENDLY MANAGEMENT OF GREATER WAX MOTH, Galleria mellonella IN STORED HONEY BEE COMB”. Wax moth is serious pest of honey bee. The wax moth belongs to the subfamily Galleriinae of the family Pyralidae, order Lepidoptera. The Greater wax moth causes severe losses in apiaries which lead to financial losses every year. Besides damaging wax comb by larval feeding and destroying frames and wooden parts in the hive, adult and larvae can also transfer pathogens of serious bee disease e.g. foulbrood. Observation were recorded on impact of different age comb on life cycle of Greater wax moth, pathogenicity test of Heterorhabditis indica against IV instar Galleria mellonella and III instar Spodoptera litura larvae with different inoculation level and exposure time (24, 48 and 72 hour) and natural parasitization of A. galleriae on collected hundred greater wax moth larvae. During the investigation, the impact of different age comb on growth and development of G. mellonella were studied, the total development period from egg laying to adult emergence was highest (159.29 days) in processed wax, while significantly short life cycle (75.50 days) was observed in three year old comb.Accumulative mortality over all the life cycle lowest percentage (9.7%) was seen in three year old comb and maximum was seen in case of processed wax (65.83%). The LC50 value of H. indica against greater wax moth for 24, 48 and 72 hour exposure period were 714.20, 541.57 and 155.99 IJs/ml, respectively while LT50 value at highest 2000 IJs/ml were 96.32, 42.04 and 17.34 hour. The LC50 values of H. indica against S. litura for 24, 48 and 72 hour exposure period were 535.35, 190.96 and 137.7 IJs/ml respectively and LT50 value at highest 500 IJs/ml dose were 97.20, 47.09 and 15.91 hour, respectively. The natural parasitization percent of A. galleriae on collected hundred greater wax moth were 40, 30, 17, 9, 11, 5, 10 and 29 respectively from October 2018 to May,2019. The maximum parasitization was in month of October, 2018 (40%) and subsequently reached 5% by March 2019. The sex ratio (F: M) was maximum (1:1.5) during March, 2019 followed by November and December (1: 1.42) 2018-19. A smaller common red ant feed on the larvae of greater wax moth was used as a potential biological control agent of wax moths. For eco-friendly management of the greater wax moth, in stored honey bee comb, it is recommended that old wax comb should be replaced with new wax comb and in case of severe infestation; release of the natural enemies A. galleriae and small fire ant will be effective for the management of Greater wax moth larvae. Management of G. mellonella and S. litura, EPN can be explored and further utilized.
  • ThesisItemOpen Access
    Preparation and evaluation of formulations of entomopathogenic fungi, Beauveria bassiana (Balsamo) Vuillemin against lepidopteran insect pests
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2019-07) Rai, Rajnish; Pandey, Renu
    Present study on mass multiplication and formulation of entomopathogenic fungi (EPF), Beauveria bassiana (Balsamo)Vuillemin along with their pathogenicity against lepidopteran insect pest, i.e. Tobacco caterpillar (Spodoptera litura) and Greater Wax Moth larve (Galleria mellonella) was conducted in Insect Pathology Laboratory, Department of Entomology, College of Agriculture, , G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand during 2017-19. Experiment conducted for the mass multiplication of B. bassiana on grain based media showed that Rice was best substrate on the basis of mean biomass, mean conidial count, and mean germination per cent (0.62 g, 10.92×107 conidia/ml and 86.94 %) followed by Sorghum and Maize. For synthetic media the same parameters were studied for mass multiplication of B. bassiana and it was found that best media were Oatmeal Agar Media (OMA) and Oatmeal Broth (OMB) within a range of temperature 21oC- 27 oC. For bioassay the developed conidial suspension and Sunflower oil formulation were evaluated on Greater Wax Moth (Galleria mellonella) and Tobacco Caterpillar (Spodoptera litura). In Greater Wax Moth comparison in the toxicity of two formulations indicated that there was not much difference between the efficacy of the formulations, however some higher response was observed in the sunflower oil formulation. At 72 hours after treatment (HAT) the mortality response in case of conidial suspension was 73.33% however at same 72 HAT in case of sunflower oil formulation the mortality response was 83.33 % at the concentration of 1000×105. In other concentrations at various hours after treatment oil formulation is showing higher toxicity as compared to conidial suspension and in tobacco caterpillar comparison between the two formulations indicated that there was not much difference between the contact toxicities of the B. Bassiana, however oil formulation showed a little higher toxicity. At 48 HAT the mortality in case of conidial suspension was 16.67%, however it was 23.33% at highest concentration of 1000×105 in case of sunflower oil formulation. In other concentrations at various hours after treatment sunflower oil formulation is showing higher toxicity as compared to conidial suspension. Mycoinsecticide formulations are the leading effective products for controlling various insect pests. Being highly potent agent, Chemical firms are diversifying their portfolio to such microbial agents as the degradation of soil and resistance in insects has made synthetic chemicals more questionable. Need of the hour is to discover biological entities to control insect pests which will help to develop new horizons for Integrated Pest Management (IPM) modules.
  • ThesisItemOpen Access
    Study on the diversity of predatory Coccinellid species prevailing in different crop ecosystems of Pantnagar
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2019-08) Patwal, Himanshu; Maurya, R.P.
    The present investigation was carried out during 2018-19 at three different locations of Pantnagar and laboratory studies were conducted in Biological Control Laboratory, Department of Entomology, Govind Ballabh Pant University of Agriculture & Technology, Pantnagar. For the study of diversity of coccinellid beetles, 14 crops from three different ecosystems i.e. field crop, vegetables crop and floriculture crop were observed. Results of the diversity of different coccinellid species from different crop ecosystems revealed the presence of fifteen species of predatory coccinellid species in Pantnagar region. Among all the species, thirteen species were recorded under the subfamily Coccinellinae while, rest of two species were belonged to subfamily Chilocorinae and Coccidulinae each. Maximum eight number of coccinellid species viz., C. septempunctata (L.), C. sexmaculata (Fab.), M. discolor (Fab.), P. dissecta (Mul.), H. dimidita (Fab.), M. univittata (Hope), A. cardoni (Weise) and B. suturalis (Fab.) were found in soybean crop while, minimum 01 species C. septempunctata (L.) was observed in coriander crop. Out of fifteen species, 13 species of coccinellids were found predaceous on different aphid species, whereas, two species i.e. A. cardoni (W.) and B. suturalis (Fab.) were found predaceous on whiteflies. Besides aphids, P. dissecta (Mul.), H. dimidita (Fab.) and R. fumida (Mul.) were also found feeding on pollen grains of maize. Study of genetic variability of coccinellid beetles provided first hand information about variation in CO gene of different predatory coccinellid species from Pantnagar region of Uttarakhand. CO region of C. transversalis (CT) and C. septempunctata (CS) showed more similarity as they share a single cluster on dendogram profile while, The other species of coccinellid beetles i.e. Propylea dissecta (PQ), Micraspis discolor (MD), Cheilomenes sexmaculata (MS) and H. dimidita (variant HD and HY) form a separate cluster. Variants of H. dimidita (HD) also had difference in their CO region. This study showed that the mitochondrial region were able to differentiate the closely morphological similar species from each other. Study on seasonal abundance of coccinellid species in different crops revealed that three species C. septempunctata, C. sexmaculata and C. transversalis were found active throughout the year. The population of C. transversalis (14.3/ m2), Illeis sp1 (7.9/ m2) and Illeis sp2 (7.1/ m2) was recorded maximum during 1st SW while, C. septempunctata was recorded maximum (17.6/m2) during the 13th SW. Peak population of A. cardoni (9.2/ m2) and M. Univittata (6.3/ m2) was recorded maximum during 36th SW while, C. Sexmaculata (18.3/ m2), H. variegate (14.4/ m2) and B. Suturalis (7.8/ m2) recorded maximum during the 42nd SW. Peak population of H. Sedecimnotata (6.9/ m2) and R. fumida (12.2/ m2) found maximum during 43rd SW while, of H. dimidita (13.3/ m2) and M. discolor (13.7/ m2) during 45th SW, P. dissecta (16.7/ m2) during 48th SW and M. Allardi (13.3/ m2) during 52nd SW. A positive correlation with average relative humidity and negative correlation with average temperature, rainfall were found to be associated with the seasonal occurrence of these predatory coccinellid beetles. Present study showed that these predatory coccinellid species were well acclimatized with all the weather conditions at Pantnagar and three species C. septempunctata, C. sexmaculata and C. transversalis could be utilized in biological control programs throughout the year.
  • ThesisItemOpen Access
    Management of insect pests of potato with some novel insecticides
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2019-08) Rana, Anil; Srivastava, R.M.
    Present study entitled "Management of insect pests of potato with some novel insecticides” was conducted at Vegetable Research Center, G.B. Pant University of Agriculture and Technology, Pantnagar in Tarai region of Uttarakhand during the year 2018-19. During the course of study, the major insect pests observed attacking potato variety Kufri Surya were green peach aphid (Myzus persicae Sulzer), thrips (Thrips palmi Kamy), leaf hopper, (Empoasca devastans) and whitefly (Bemisia tabaci Genn.). The peak activity of green peach aphid (12.13 per plant) was observed during fourth week of November. In case of leaf hopper, peak activity was recorded 5.43 per plant,during third week of January, whereas, peak activity of whitefly(15.46) was recorded during second week of December and peak activity of thrips (18.80)was recorded during third week of December. Correlation studies were worked out between the population of predators and that of sucking pests. There was a positive correlation between aphid and ladybird beetle, thrips and lady bird beetle, leaf hopper and lady bird beetle with “r” value of 0.94, 0.86 and 0.79, respectively at 5 percent level of significance. Comparative studies of two chemicals were conducted for their efficacy against major insect pests of potato, of these, flonicamid 50 WG @ 3gm /10 lits with repeat 15 days after 1st spray was found as the more effective than imidacloprid insecticides against aphids (Myzus persicae), whitefly (Bemesia tabaci), jassid (Empoasca devastans)and thrips (Thrips palmi)followed by other treatments. After perusing the yield data it was observed that potato tuber yield was maximum (41 t/ha) in flonicamid 50 WG @ 3g / 10 lits + repeat at 15 days with 34.41 percent increase over control. While studying the Bioefficacy of various insecticide it has been observed that seed treatment with imidacloprid (200 SL) @ 0.04% followed by foliar Spray of imidacloprid @60 g a.i. /ha at 85% emergence and repeated second spray with thiamethoxam 25 WG @ 100g a.i. /ha was most effective against potato insect pest like aphid (Myzus persicae), whitefly (Bemesia tabaci), jassid (Empoasca devastans) and thrips (Thrips palmi) followed by diafenthiuron as compared to other treatments castor oil could not manage the insect pests.
  • ThesisItemOpen Access
    Insect pests of cauliflower and their management by botanical and novel insecticides
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2019-07) Mehra, Pradeep Singh; Karnatak, A.K.
    The present investigation was carried out at Vegetable Research Centre, G.B. Pant University of Agriculture and Technology, Pantnagar during 2018-19. Four species of insect pests were observed to attack the cauliflower crop during winter 2018-2019, among four insect species only two viz., B. brassicae and P.xylostella, gained the status of major pests. Four natural enemies were also found to be associated with insect pest complex among which C. Septempunctata was identified as a potential predator for B. Brassicae. Seasonal incidence of major insect pests was studied from 45th standard week of 2018 to 7th standard week of 2019. Maximum mean number of aphids (124.87 aphids per plant) and maximum mean larval population of P. xylostella (3.44 larvae per plant) was recorded during 6th SW and 7th SW of 2019. Seasonal incidence of potential predator Coccinella septempunctata was studied from 46th standard week of 2018 to 7th standard week of 2019. Maximum population of Coccinella septempunctata (12.01 grub and adults per square meter) was observed during 6th SW of 2019. Among the botanical and novel insecticides, Spinosad 2.5% SC @ 17 g a.i./ha and emamectin benzoate 5% SG @ 10 g a.i./ha is highly effective for aphid and DBM , NSKE 5% and NSKE 10% is also effective on pests.
  • ThesisItemOpen Access
    Studies on extrinsic resistance for sustainable insect pest management in mango
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2019-07) Mehra, Vidhi; Srivastava, Poonam
    Mango, Mangifera indica Linnaeus has a complex defense system against diverse insect pest due to the presence of natural enemies which confer extrinsic resistance. A total of 34 insect species were recorded in mango orchard during 2018-19. Out of which, 23 species of insect pests and 11 species of natural enemies were found. Among all the insect pest species, the abundance of mango hopper and mealybug was recorded throughout the year. The peak abundance of mango hopper was observed at the flowering stage i.e., on 16th SMW (14.52 hoppers/ panicle/ twig/ week). The population of mealybug was prevalent from the month of January to May, and it achieved the maximum population on 16th SMW (18.67 mealybugs/ panicle/ twig/ week). Studies on impact of insecticides on extrinsic resistance in mango revealed that insecticides killed both insect pests and natural enemies instantly, but after spray the insect pests multiplied rapidly. The abundance of natural enemies was higher in untreated mango trees than treated trees. Impact of insecticides on relationship between insect pests and natural enemies revealed that the correlation between mango hoppers and natural enemies (spiders r=0.840, R2=0.705, ladybird beetle r=0.928, R2=0.862) was higher in untreated plots than treated mango trees, where the correlation and regression between mango hoppers and natural enemies was lesser (spiders r=0.769, R2 =0.591, ladybird beetle r=0.856, R2 =0.732). Similarly, correlation of mealybug with its natural enemies (spiders r=0.713 and R2=0.508, ladybird beetle r=0.856, R2 =0.732) was higher in untreated mango trees, as compared to treated mango trees, where the correlation and regression between mealybug and natural enemies was lesser (spiders r=0.709 R2 = 0.502, ladybird beetle r=0.581 with R2 = 0.338). Thus, insecticides affected the extrinsic resistance adversely, by disturbing the abundance of natural enemies. Impact of abiotic factors revealed that maximum temperature and sunshine hours showed positive and significant correlation, while, morning relative humidity, evening relative humidity and rainfall had a negative and significant correlation on the population of mango hoppers, mealybug, and ladybird beetle, respectively. But, the population of spiders was correlated positively and significantly with maximum temperature, sunshine hours and morning relative humidity while it was negatively correlated with evening relative humidity and rainfall. Minimum temperature had no significant relationship with any of the insect pests and natural enemies. The yield as well as B:C Ratio was observed higher in the case of untreated mango trees (63.12q/ha, 5.05:1, respectively), as compared to treated mango trees (51.85q/ha, 3.81:1 respectively). This gave evidence that good yield can be attained by extrinsic resistance and the insect pest population can be managed naturally without use of insecticides. Furthermore, in a complex and diverse ecosystem of mango, insect pest management through extrinsic resistance once established, is sustainable in long run.
  • ThesisItemOpen Access
    Bioefficacy of bamboo and some other plant oils against gram pod borer, Helicoverpa armigera (Hübner) and pulse beetle, Callosobruchus chinensis (L.)
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2019-07) Verma, Neha; Agnihotri, Meena
    Studies on bioefficacy of bamboo and some other plant oils against gram pod borer, Helicoverpa armigera (Hübner) and pulse beetle, Callosobruchus chinensis (L.) were carried out at NEB Crop Research Centre and in the Department of Entomology at G.B. Pant University of Agriculture and Technology, Pantnagar during rabi season, 2018-19. Under laboratory conditions, different plant oils viz., Dendrocalamus strictus bio oil, Bambusa bambus bio oil, Azadirachta indica oil, Mentha arvensis oil, Moringa oliefera oil, Rosemarinus officinalis oil, Jatropha curcas oil and Piper longum oil were evaluated for contact and fumigant activity against Callosobruchus chinensis. Dendrocalamus strictus bio oil (100.00%) and Mentha arvensis oil (100.00%) showed highest fumigant mortality whereas, Azadirachta indica oil (100.00%), Mentha arvensis oil (100.00%) and Rosemarinus officinalis oil (100.00%) showed highest contact mortality against C. chinensis after 72 hrs. Under field conditions, different plant oils were evaluated against H. armigera and results revealed that Azadirachta indica oil @ 3ml/l and Mentha arvensis + Rosemarinus officinalis oil @ 1.5 + 1.5 ml/l were found to be the most effective treatments in reducing egg population whereas, in reduction of larval population Bambusa bambus bio oil @ 3ml/l and Bambusa bambus bio oil + Azadirachta indica oil @ 1.5 + 1.5 ml/l were found more effective. The data on percent pod damage and grain yield supports the above result. Under unprotected and protected experiments (Dendrocalamus strictus bio oil spray), results indicated that protected PG3 variety intercropped with coriander was found to be the most effective treatment in reducing egg and larval population as compared to unprotected varieties whereas, unprotected PG3 variety intercropped with coriander was found to be the most effective treatment in maximizing natural enemy population as compared to protected varieties. Minimum percent pod damage and grain yield (6.0% and 2100.6 kg/ha) was recorded in protected PG3 variety as compared to unprotected PG3 variety (8.2% and 1290.6 kg/ha) while maximum (20.8% and 905.6 kg/ha) in unprotected PKC2 variety as compared to protected PKC2 variety (20.5% and 955.0 kg/ha ) when intercropped with coriander. Hence, Rosemarinus officinalis oil showed highest contact and fumigant mortality against C. chinensis under storage condition, while Dendrocalamus strictus bio oil and Azadirachta indica oil were more effective in reducing egg and larval population of H. armigera under field condition.
  • ThesisItemOpen Access
    An investigation on Clonostachys rosea (Ascomycota: Hypocreales) as an entomopathogenic fungus against mango hopper
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2019-07) Tamta, Abhishek Kumar; Pandey, Renu
    A study regarding collection, isolation, identification, and pathogenicity test was conducted for the local isolate having standards and potential of being entomopathogenic fungi. This isolate was found and studied in Pantnagar, Udhamsingh Nagar, Uttarakhand; during 2017-19. All the above mentioned heads were studied meticulously and the results told that the local isolate is Clonostachys rosea (Link: Fries) (Ascomycota: Hypocreales) formerly known as Gliocladium roseum Bainier; teleomorph: Bionectria ochroleuca (Schweinitz); with an effective similarity of 98.80% and 98.63% to KY378958.1 and MH869057.1. Results on standardization of the media deciphered that the best option for mass multiplication of Clonostachys rosea is Oatmeal Agar media (OMA) and Oatmeal Broth (OMB) at a temperature range of 20oC to 25oC when considering mean radial growth, mean conidia/bit, and mean germination percentage. In the bioassay evaluation of the local isolate against Mango Hoppers (Amritodus atkinsoni), Okra Jassids (Amrasca sp.), Silver Oak Termites (Odontotermes obesis), and Greater Wax Moth larvae (Galleria mellonella); it was found that the highest mean mortality was obtained for Mango Hoppers (96.67%) at a concentration of 3x108 conidia/ml and for Okra Jassids, the highest mean mortality obtained was 80% at a concentration of 3x108 conidia/ml. No death was espied for Silver Oak Termite and Greater Wax Moth larvae. Thus, in culmination it can be inferred that the isolated fungus is a novoentomopathogenic fungi which has potency to be included in IPM module and there are still many entomopathogenic fungi undiscovered from nature. Much intricate and more such studies are required in Insect Pathology.