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Md. Ilyas ¹, G. S. Vidhate ¹, T. B. Ugale ², G. S. Kamte ²

Affiliations
1 Department of Agricultural Entomology, Marathwada Agricultural University, Parbhani M.S., IN
2 Department of Entomology, K.K. Wagh College of Agriculture, Nashik M.S., IN

Abstract

An experiment was conducted to evaluate the performance of bivoltine mulberry silkworm (Bombyx mori L.) hybrids under Marathwada conditions at Sericulture Research Unit, Marathwada Agricultural University, Parbhani during October-November, 2008. The bi x bi hybrid CSR16 x CSR17 was found significantly superior with hatching percentage of 95.22. Maximum larval weight (45.08 g), maximum single cocoon weight (1.98 g), single shell weight (0.393 g), filament length (950 m), cocoon yield/10000 larvae brushed (18.55 kg), effective rate of rearing (96.33 per cent), whereas significantly superiority in less larval duration and shelling percentage was found in bi x bi hybrid CSR 18 x CSR 19 (22.65 days) and CSR 48 x CSR 4 (20.98 per cent), respectively. The multi x bi hybrid PM x CSR2 recorded significantly less disease incidence. Based on overall performance it can be concluded that the bivoltine hybrid CSR16 x CSR17 reared on mulberry variety V-1 was the most suitable and economical for rearing under Marathwada conditions

Keywords

V-1, Bombyx Mori L, Bivoltine Hybrid, Larval Weight, Filament Length, Hatching Percentage

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U. A. Pawar ¹, P. S. Chintkuntalawar ¹, T. B. Ugale ²

Affiliations
1 Department of Agricultural Entomology, K.k. Wagh College of Agriculture, Nashik (m.s.), IN
2 Department of Agricultural Entomology, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur (m.p.), IN

Abstract

A field experiment was conducted at experimental field of Department of Entomology, Live Stock Farm, Adhartal, J.N. Krishi Vishwa Vidyalaya, Jabalpur (M.P.) during Kharif season 2009-2010. Thirteen different species of insects and one insectivorus bird species were recorded on the pigeonpea at Jabalpur during 2009-2010. Data collected reveled that fauna belonging to seven orders and fourteen families were associated with the pigeonpea crop. The first group of insects included jassid, leaf webber, tussock caterpillar and red pumpkin beetle which appeared when the crop age was about 39 days old i.e. during vegetative stage and remained available upto the reproductive stage. The next group of insects to appear on the crop were jassid, thrips, blister beetle, pod bug, gram pod borer, pod fly, green stink bug and red gram plume moth. These appeared when the crop age was about 102 days old i.e. at the reproductive stage and remained available upto the maturity of the crop. These pests were the major key pests which caused colossal yield losses. The natural enemies observed were lady bird beetle and a parasitic wasp Cotessia(= Apanteles)sp. which remained active from vegetative to reproductive stage of the crop. An insectivorous bird, black drongo was also observed to feed on different stages of insect pests infesting pigeonpea during the entire crop growth period.

Keywords

Pigeonpea, Key Pest, Predator, Insectivorous Bird

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S. M. Hadole ¹, Parmeshwari B. Pawar ², T. B. Ugale ³

Affiliations
1 K.K. Wagh College of Agriculture, Saraswatinagar, Nashik (M.S.), IN
2 Department of Extension Education, K.K. Wagh College of Agriculture, Saraswatinagar, Nashik (M.S.), IN
3 Department of Agricultural Entomology, K.K. Wagh College of Agriculture, Saraswatinagar, Nashik (M.S. ), IN

Abstract

The present research on relationship between socio-economic characteristics of tomato grower was conducted in Nashik district of Maharashtra state. Seventy tomato growers were selected randomly from ten villages. The data were collected by personal interview technique from tomato growers with the help of structured interview schedule. Mostly respondents were found in medium age category, higher secondary education, medium farming experience, joint and large family, medium level economic motivation, scientific orientation and risk orientation as well as medium knowledge level. The relationship of selected characteristics namely age, type of family, land holding, economic motivation and knowledge level were found to be positively and significantly correlated with overall adoption of recommended practices of tomato.

Keywords

Relationship, Adoption, Tomato Growers.

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B. L. Jangale ¹, N. G. Sonone ¹, T. B. Ugale ², N. R. Toke ², P. B. Jangam ³, R. S. Holkar ³

Affiliations
1 Department of Plant Biotechnology, K.K. Wagh College of Agricultural Biotechnology, Panchavati, Nashik (M.S.), IN
2 Department of Agricultural Entomology, K.K. Wagh College of Agriculture, Panchavati, Nashik (M.S.), IN
3 Department of Biotechnology, K.K. Wagh College of Arts, Science and Commerce, Panchavati, Nashik (M.S.), IN

Abstract

Medicinal plants represents rich source for antimicrobial agents and thus widely used in different countries and are a source of potent and powerful drugs. Considering the vast potentiality of medicinal plants as antibacterial agents, a systematic investigation was undertaken to screen the antibacterial activity of five medicinal plants viz. Solanum torvum, Adhatoda vasica, Terminalia chebula, Asparagus racemosus and Simarouba glauca against bacterial pathogens Bacillus subtilis, Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa. The ethanol leaf extracts of five plants showed variable zone of inhibition ranging from 3 to 11 mm against B. subtilis, S. aureus, E. coli and .P aeruginosa. The methanol extracts of all five plants failed to show zone of inhibition. However, hot water extract of S. torvum showed zone of inhibition about 6 mm against B. subtilis and P aeruginosa and about 7 mm against S. aureus and E. coli. The highest zone of inhibition was measured about 12 mm for ethanol + methanol extracts of A. vasica against E. coli. Thus, it reveals that bioactive compounds like alkaloids, flavonoids, terpenoids etc. may be the cause of inhibition and can easily be isolated in presence of ethanol, methanol, ethanol + methanol and hot water.

Keywords

Medicinal Plants, Antibacterial Activity, Zone of Inhibition, Bioactive Compounds.

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Suchita R. Ghule ¹, U. P. Barkhade ¹, M. P. Moharil ¹, T. B. Ugale ²

Affiliations
1 Department of Agricultural Entomology, Dr. Punjabrao Deshmukh Krishi Vidyapeeth, Akola (M.S.), IN
2 Department of Agricultural Entomology, K.K. Wagh College of Agriculture, Nashik (M.S.), IN

Abstract

A laboratory investigation was conducted to find out role of detoxifying enzymes in defense mechanism of cotton cultivars against mealybugs in Insect Biotechnology Laboratory of Department of Agricultural Entomology,Dr. PDKV, Akola during 2008-09. Quantitative and qualitative studies undertaken for estimation of detoxifying enzymes like Glutathione S-transferases and esterases. GST activity was found higher in resistant variety, PKV Hy-2, followed by AKH-3614-10 (Hirsutum pigmented). The highest esterase activity was found to be present in Bunny-Bt (187.14 nM mg protein^-1 min^-1) than other cotton cultivars. PKV Hy-2 showed very lowest esterase activity (76.97 nM mg protein^-1 min^-1). Glutathione-s-transferase and esterase bands were not detected in the susceptible CAHH-231 (Pigmented hybrid) variety. Three GST isozymes were observed in AKA-8, whereas, CAHH-231 (Pigmented hybrid) did not show any isozyme. The study will be helpful in understanding the biochemical basis of mealy bug resistance in cotton. The outcome of the present investigation will act as stepping stone to develop mealy bug resistant cotton variety.

Keywords

Cotton, Detoxifying Enzymes, Esterases, GST, Host Plant Resistance, Phenococcus solenopsis.

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Parmeshwari B. Pawar ¹, S. M. Hadole ², T. B. Ugale ³

Affiliations
1 Department of Extension Education, K.K. Wagh College of Agriculture, Saraswatinagar, Panchavati, Nashik (M.S.), IN
2 K.K. Wagh College of Agriculture, Saraswatinagar, Panchavati, Nashik (M.S.), IN
3 Department of Agricultural Entomology, K.K. Wagh College of Agriculture, Saraswatinagar, Panchavati, Nashik (M.S.), IN

Abstract

Credibility refers to the trustworthiness of information sources as perceived by farmers is an important factor. The present study was conducted in two blocks of Nashik district of Maharashtra state to investigate the credibility of differnt information sources utilize by tomato growers. The present study revealed that the agri. input retailers perceived as most credible followed by social media/internet, agricultural consultant and agri. input company representative. On the other hand village level worker, co-operative society and government extension agencies were perceived as least credible sources.

Keywords

Credibility, Source, Information, Tomato Growers.

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