Palli Siksha Bhavana

Sriniketan, India

Palli Siksha Bhavana

Sriniketan, India
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Das R.,Pulses and Oilseeds Research Station | Mondal B.,Palli Siksha Bhavana | Mondal P.,Palli Siksha Bhavana | Khatua D.C.,Bidhan Chandra Krishi Viswavidyalaya | Mukherjee N.,Bidhan Chandra Krishi Viswavidyalaya
Journal of Biopesticides | Year: 2014

Citrus canker incited by Xanthomonas axonopodis pv. citri (Hasse) Vauterin et al. is a serious disease of acid lime [Citrus aurantifolia (Christm.) Swingle] all over the world including West Bengal, India. The disease depends much upon its secondary spread through rain splash, mechanical contact in stormy weather and leaf damage by citrus leaf minor (Phyllocnistis citrella Stainton). For controlling citrus canker the usual recommendation includes antibiotics and some agrochemicals in the form of spraying. Little work has been reported on biological management of the disease. An experiment was set up in a farmer’s field (acid lime orchard), Nadia, West Bengal, using an inhibitory strain of Bacillus subtilis (S-12) during 2009-2010. Single spray of aqueous suspension (2.7 x 109 cells/ml) of bacterial cells was spread on 5 batches (6 numbers of plants/batch) of plants keeping 4 batches unsprayed. Per cent Disease Index (PDI) was recorded throughout the year at every month using 0-4 scale from both treated and untreated plants. Initial PDI was also taken before one week of spraying. A single spray of the bacterial suspension during the peak season for disease that is in July has resulted in a satisfactory decline of the disease. A sharp decline of the disease was recorded at 20 days after treatment indicating that the spore forming bacteria might have taken over on the leaf surfaces of the plants. © 2014, JBiopest. All rights reserved.

Mandel D.,North Bengal Agricultural University | Ghosh P.P.,Bidhan Chandra Krishi Viswavidyalaya | Dasgupta M.K.,Palli Siksha Bhavana
CAB Reviews: Perspectives in Agriculture, Veterinary Science, Nutrition and Natural Resources | Year: 2012

As conceived in the 'West', precision agriculture (PA) may be suitable for capital-intensive, hightechnology regions in developed countries, monoculture affected by a single major soil-borne plant pathogen or pest in large farms, but not for peasant farming or the pest-complex-ridden unaided agriculture as found in less-developed countries (LDCs). PA is not about an abstract of characterization. Appropriate precision agriculture (APA) as site-specific appropriate precision agriculture (SSAPA) represents cropping system (CS) management with such geoinformatics and agri-informatics as are available for land, soil, water, meteorology and forecasting inputs and outputs by marketing, production, protection and other essential information provided through a decision support system through communication networking. Such management approaches are not ordinarily available to most of the farmers in LDCs. It is a prelude to site-specific cropping system management (SSCSM) as the chosen methodology of PA that is likely to be appropriate for marginal and small farmers (MSFs) of LDCs. Benchmark socio-economic information about the farmers of the district in which the experimental site Senkapur-on-Ajay is located, along with predictable trends of macro-meteorological information for 35 years, surface soil and profile survey data in the experimental site and around were made available. In addition, computation of crop suitability was done by conducting a field experiment in a rice-based CS with annual crop rotation as cropping sequence (cs) and when each cs has been rotated for 3 years it is considered a CS. Nine rice and vegetable-based CSs and 27 cs were compared in terms of cultural practices with improved package (IP) and farmer's package (FP), crop growth and productivity, soil nutrient management systems and nutrient use efficiency, appropriate integrated pest management (AIPM), pest: natural enemies (P: NE) balance, energy use efficiency and economics approximately each with several variables. Further information and advice including pest management decisions were provided through marketing information and intelligence, as well as through a communication networking system (CNS) with farmers reporting on pest intensities, with responses from the researcher together with the farmers by means of visits and mobile telephone connections with some local leading farmers, and a post-experimental survey of the targeted farmers on the utilities and problems, if any, on the perception on APA with SSCSM in a 10 km radius of the experimental site. The farmers were satisfied with the information provided during the experiment. This methodology can be adopted for as many locations as possible, wherever similar trials in different sub-agro-ecosystems in various agro-ecosystems are conducted. The methodologies have to be fine-tuned with continuous and active experimentation and communication networking. © CAB International 2012.

Mondal B.,Palli Siksha Bhavana | Bhattacharya L.,Bidhan Chandra Krishi Viswavidyalaya | Sarkar A.,The Academy of Management | Khatua D.C.,Bidhan Chandra Krishi Viswavidyalaya
International Journal of Agricultural and Statistical Sciences | Year: 2013

Eight local brinjal (Solanum melongena L.) germplasm were screened against bacterial wilt caused by an insidious soil borne pathogen Ralstonia solanacearum (Smith) Yabuuchi et al. during 2007-2009 using sick plots. Variability in qualitative and quantitative characters of these genotypes was assessed through separate experiments. Based on the results of screening of local brinjal germplasm, Midnapore Local (collected from the district of Midnapore) and Bhangar (collected from district of South 24 Parganas) were found tolerant to bacterial wilt and also possess marketable qualitative fruit characters which can be exploited by the breeder to develop resistant lines.

Pal S.,North Bengal Agricultural University | Chatterjee H.,Palli Siksha Bhavana | Senapati S.K.,North Bengal Agricultural University
Indian Journal of Ecology | Year: 2013

An experiment was carried out at Regional Research Station, Uttar Banga Krishi Viswavidyalaya, Kalimpong, West Bengal during the winter seasons of 2009-10 and 2010-11, to assess the comparative efficacy and economics of biopesticides as well as some new eco-friendly molecules against Helicoverpa armigera in comparison to conventional insecticide. The chemical insecticides particularly the newer molecules indoxacarb and flubendiamide were superior to biopesticides like Bacillus thuringiensis, neem seed powder extract and nuclear polyhedrosis virus in reducing the infestation of carnation bud borer, Helicoverpa armigera and providing higher net return per rupee invested. The treatments with combination of half dose of endosulfan with NPV and neem seed powder extract recorded moderate level of effectiveness against H. armigera but were superior to individual treatments with biopesticides in efficacy and economics.

Chatterjee H.,Palli Siksha Bhavana | Senapati S.K.,Palli Siksha Bhavana
Journal of Biopesticides | Year: 2010

Bio-safety of some microbial insecticides viz., Bacillus thuriengiensis var kurstaki (B.t.k.- 55000 S.U./mg (Halt) and B.t.k.- 32000 I.U. /mg (Biolep), Vertimec (Avermectin-1.8% w/v) and a bassina (Beauvaria bassiana-1 × 107 spore / ml) were studied against Menochilus Micraspis, Harmonia sp., and spiders (Lycosa, Oxeopes and Argeope sp.) under field conditions. The avermectin was highly toxic to spider reducing 42.65% population within three days after application and 41.51% of coccinellids after seven days of spraying. Adverse effect of B.t.k.- 32000 I.U./mg was more pronounced than B.t.k.- 55000 S.U./mg both at 1000 ppm against coccinellid beetles decreasing 40.28 and 36.08% in occurrence on 7 DAS respectively. Whereas, a reverse order of toxicity was found against spiders affecting 33.04 and 29.74% decrement in existence on 3 DAS. Beauvaria bassiana exerted its effect after a certain lag period and reducedthe incidence of coccinellid (33.57%) and spider populations (21.01%) on 14 days after spraying. © JBiopest.

Chatterjee S.,Rice Research Station | Mondal P.,Palli Siksha Bhavana
Journal of Biopesticides | Year: 2014

The experiments were carried out to study the performance of some biorational insecticides against yellow stem borer, Scirpophaga incertulas Walker in Boro rice at Rice Research Station, Chinsurah, Hooghly, West Bengal during the year 2009-10, 2010-11 and 2011-12. Nine treatments viz. Beauveria bassiana (Panther BB) @ 4 g/l, Beauveria bassiana (Myco- Jaal) @ 4 ml/l, Metarhizium anisopliae (Nodule Testing Laboratory, BCKV) @ 2 g/l, Bacillus thuringiensis(Panther BT) @ 1.5 g/l, Bacillus thuringiensis(Nodule Testing Laboratory, BCKV) @ 1.5 g/l, Azadirachtin 10,000 ppm @ 1 ml/l, Spinosad 45%SC @ 2 ml/15 l, Phosphamidon 40% EC @ 1.5ml/l of water and untreated control (Water Spray) were laid out in randomized block design with three replications. The observations on per cent of dead heart and white ear head along with yield of the crop in different treatments were recorded. Spinosad 45%SC proved most effective in managing the insect population as lowest DH% and WE% were observed in all the crop growing seasons. Result on pooled analyses revealed that 80.27% and 67.10% reduction of dead heart and white ear head were achieved over the control by two sprayings of Spinosad 45%SC which resulted in 69.96% increase of yield over the control. Apart from Spinosad 45%SC, Phosphamidon 40% EC also proved better in reducing the dead heart and white ear head as well as in per cent increase of yield over the control. © 2014, JBiopest. All rights reserved.

Mondal B.,Palli Siksha Bhavana | Bhattacharya I.,Palli Siksha Bhavana | Sarkar N.C.,Palli Siksha Bhavana | Sarkar N.C.,Nagaland University | And 2 more authors.
Research on Crops | Year: 2012

Bacterial wilt (c.o.-Ralstonia solanacearum (Smith) Yabuuchi et al.) is a devastating disease of brinjal and tomato throughout India, causing considerable yield loss. Use/development of host plant resistance/tolerance is the most effective way for disease management strategy. Inoculation of secondary roots of tomato and brinjal seedlings after incision with sterilized knife followed by application of bacterial suspension (1.5 × 108 cells/ml) over wounded roots was found best method of inoculation. Seven genotypes of brinjal viz., Utkal Anushri (BB 45C), Utkal Madhuri (BB 44), Utkal Jyoti (BB 13), BCB 64, Ayeb 2, Soiler and Muktakeshi (susceptible check) and seven F2 generations of tomato viz., Cross 7F 2P 8, Cross 7F 2P 12, Cross 4F 2P 4, Cross 3F 2P. 1-1, Cross 4F 2P -3, Cross 8F 2P. 1-1 and Cross 7F 2P 3 were screened against bacterial wilt in laboratory conditions during 2006-07. Only three genotypes of brinjal (Utkal Madhuri, Ayeb 2 and Soiler) and two F 2 generations of tomato (Cross-7F 2P 8 and Cross-8F 2P -1-1) showed resistance reaction which can be utilized in future breeding programme.

Mondal B.,Palli Siksha Bhavana | Mondal P.,Palli Siksha Bhavana
Journal of Biopesticides | Year: 2012

Chilli (Capsicum annuum L.) is an important profitable cash crop. However, the productivity of the crop is decreasing sharply day by day mainly due to leaf curl complex. Chilli thrips (Scirtothrips dorsalis Hood) and yellow mite (Polyphagotarsonemus latus Banks) are the two major pests responsible for this devastating problem. Seven IPM modules including a non-IPM module were evaluated for sustainable management of these pests. Experimental findings revealed that all the IPM-modules proved superior to non IPM-module. The module T4 having one spray of Boom Tet followed by Abamectin and again Boom Tet at 21 days interval proved most effective in reducing pests population as well as in terms of benefit-cost ratio followed by module T5 (Redux + Garlic extract + Diafenthiuron) and T6 (NSKE + Redux + Boom Tet) when sprayed successively at same interval. It can be concluded that module T4, T5 and T6 may be considered for sustainable production of chilli. © JBiopest.

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