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Author D.L. Mandal |
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Refine your searchEffectiveness of chemical insecticides against mango stone weevil (Sternochetus mangiferae; Fabricus; Coleopter; Curculionidae) in the foot hills of eastern Nepal / ASR Bajracharya ; S. Piya ; Ghimire, K. ; D.L. Mandal
in Proceedings of the 10th National Outreach Research Workshop 27-28 February, 2012 (15-16 Falgun, 2068) Held at the Regional Agricultural Research Station, Lumle, Kaski / Paudel, Mina Nath
Title : Effectiveness of chemical insecticides against mango stone weevil (Sternochetus mangiferae; Fabricus; Coleopter; Curculionidae) in the foot hills of eastern Nepal Material Type: printed text Authors: ASR Bajracharya, Author ; S. Piya, Author ; Ghimire, K., Author ; D.L. Mandal, Author Pagination: 256-259 p. Languages : English (eng) Link for e-copy: http://elibrary.narc.gov.np/?r=2212 Effectiveness of chemical insecticides against mango stone weevil (Sternochetus mangiferae; Fabricus; Coleopter; Curculionidae) in the foot hills of eastern Nepal [printed text] / ASR Bajracharya, Author ; S. Piya, Author ; Ghimire, K., Author ; D.L. Mandal, Author . - [s.d.] . - 256-259 p.
in Proceedings of the 10th National Outreach Research Workshop 27-28 February, 2012 (15-16 Falgun, 2068) Held at the Regional Agricultural Research Station, Lumle, Kaski / Paudel, Mina Nath
Languages : English (eng)
Link for e-copy: http://elibrary.narc.gov.np/?r=2212 E-copies
http://nkcs.org.np/narc/dl/?r=2212URL
in Proceedings of the fifth National Seminar on Horticulture June 9-10, 2008 / Nepal Agricultural Research Council (NARC) (Khumaltar, Lalitpur, Nepal)
Title : Evaluation of Botanicals ·for the Management of Blister Blight (Exobasidium Vexans) in Tea Material Type: printed text Authors: P.K. Yadav, Author ; Mahto, B.N., Author ; D.L. Mandal, Author Pagination: 203-207 p. Languages : English (eng) Keywords: Banmara, Blister blight, Botanicals, Neem, Sisnu,Titepati Abstract: Blister blight caused by Exobasidium vexans Massee is a major disease of tea in Nepal
which inflicted severe crop losses. An experiment was conducted in RCBD with four
replications during 2061/62, 2062/63 and 2063/54 to test effectiveness of locally
available botanicals in crude form for the management of blister blight under natural
epiphytotic condition at Guranse Tea Estates, Dhankuta and Chiya Bistar Yojana, &
11/am. The treatments were Multi-Neem (4 mVIit of water), Titepati 20% solution (2 kg
fresh green leaf in 21iter of water), Sisnu 20% solution (2 kg fresh green leaf in 21iter of
water), Banmara 20% solution (2 kg green leaf in 21it water) and 5% mixture of Neem,
Titepati, Sisnu, and Banmara solution in 2 liter of water and water spray as control.
Mixture of Neem, Titepati, Sisnu, and Banmara was found effective for the
management of blister blight of tea. Hence, this mixture treatment was found superior
than other individual treatments and also increased green leaves tea yield. Most of the
tea planters have been using chemical pesticide.s at higher dose to manage this
disease. This practice leads misuse and overuse of chemical pesticides on tea which
creates various problems on human health, water and environmental pollution. Tea as
a value added exportable commodity and possibility of toxic residues in the processed
tea is a major concern to the consumers. Therefore, this investigation could be helpful
to reduce misuse and overuse of chemical pesticides, safe for human health and
reduce water and environmental degradation.Link for e-copy: http://elibrary.narc.gov.np/?r=246 Evaluation of Botanicals ·for the Management of Blister Blight (Exobasidium Vexans) in Tea [printed text] / P.K. Yadav, Author ; Mahto, B.N., Author ; D.L. Mandal, Author . - [s.d.] . - 203-207 p.
in Proceedings of the fifth National Seminar on Horticulture June 9-10, 2008 / Nepal Agricultural Research Council (NARC) (Khumaltar, Lalitpur, Nepal)
Languages : English (eng)
Keywords: Banmara, Blister blight, Botanicals, Neem, Sisnu,Titepati Abstract: Blister blight caused by Exobasidium vexans Massee is a major disease of tea in Nepal
which inflicted severe crop losses. An experiment was conducted in RCBD with four
replications during 2061/62, 2062/63 and 2063/54 to test effectiveness of locally
available botanicals in crude form for the management of blister blight under natural
epiphytotic condition at Guranse Tea Estates, Dhankuta and Chiya Bistar Yojana, &
11/am. The treatments were Multi-Neem (4 mVIit of water), Titepati 20% solution (2 kg
fresh green leaf in 21iter of water), Sisnu 20% solution (2 kg fresh green leaf in 21iter of
water), Banmara 20% solution (2 kg green leaf in 21it water) and 5% mixture of Neem,
Titepati, Sisnu, and Banmara solution in 2 liter of water and water spray as control.
Mixture of Neem, Titepati, Sisnu, and Banmara was found effective for the
management of blister blight of tea. Hence, this mixture treatment was found superior
than other individual treatments and also increased green leaves tea yield. Most of the
tea planters have been using chemical pesticide.s at higher dose to manage this
disease. This practice leads misuse and overuse of chemical pesticides on tea which
creates various problems on human health, water and environmental pollution. Tea as
a value added exportable commodity and possibility of toxic residues in the processed
tea is a major concern to the consumers. Therefore, this investigation could be helpful
to reduce misuse and overuse of chemical pesticides, safe for human health and
reduce water and environmental degradation.Link for e-copy: http://elibrary.narc.gov.np/?r=246 E-copies
http://nkcs.org.np/narc/dl/?r=246URL
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. II / Giri, Y.P.
Title : Evaluation of maize varieties against grey leaf (GLS) disease Material Type: printed text Authors: ASR Bajracharya, Editor ; D.L. Mandal, Author ; Chaudhary, R.N., Author Pagination: 322-325 p. Keywords: Cercospora zeae-maydis ; GLS Abstract: Maize grey leaf spot (GLS) caused by Cercospora zeae- maydis Tehon & Daniels causes
grain yield loss up to I 00 percent. Resistant varieties offer the best option for economic
control of the disease in Nepalese hill maize farming context. Considering the fact, released
maize varieties for mid and high hills along with some varieties from CIMMYT were
evaluated against the diseases at Pakhribas (1750 mas!) during 2009 and 2010 in RCB
design with two replications. The varieties included were Zm-627, Zm-525 and
Zm07SADVI (from CJMMYT) and Sheetal, Deuti, Ganesh-1, Mankamana-1,
Manakamana-3, Manakamana-4, Manakamna-6, Poshilo Makai-1 (released varieties) and
Farmers' local as check. Scoring was done three times on 1-5 scale given by Saghai and
Maroo (1993). The experiments conducted during 2009 and 2010 rainy season revealed that
genotypes Zm-627, Zm-525 and Zm07SADVJ were least affected by the diseases during
both the years. Recommended varieties Sheetala, Deuti and Ganesh-1 performed better than
local check in both years. Whereas, Mankamana-3, Mankamana-6, Poshilo Makai-1,
Mankamana-4 and Mankamana-1 were less affected by the disease as compared to local
check during 2010 but were more affected than local during 2009. On the basis of yield,
Ganesh-1 performed best during 2009 and Zm-07SADVI was best during 201 0.
Manakamana-1 and Manakamana-3 were worst yielder on GLS affected conditions whereas
other varieties were better than farmers' local. Per cent ear rot at the time of harvest was
minimum in farmers' local (2.38%) followed by Mankamana-3 (5.56%) and Ganesh-1
(5 .88%). Per cent ear rot in other varieties ranged between 11- 26%. Per cent ear rot at the
time of harvest fotmd to increase with increase in open cob percentage.Link for e-copy: http://elibrary.narc.gov.np/?r=962 Evaluation of maize varieties against grey leaf (GLS) disease [printed text] / ASR Bajracharya, Editor ; D.L. Mandal, Author ; Chaudhary, R.N., Author . - [s.d.] . - 322-325 p.
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. II / Giri, Y.P.
Keywords: Cercospora zeae-maydis ; GLS Abstract: Maize grey leaf spot (GLS) caused by Cercospora zeae- maydis Tehon & Daniels causes
grain yield loss up to I 00 percent. Resistant varieties offer the best option for economic
control of the disease in Nepalese hill maize farming context. Considering the fact, released
maize varieties for mid and high hills along with some varieties from CIMMYT were
evaluated against the diseases at Pakhribas (1750 mas!) during 2009 and 2010 in RCB
design with two replications. The varieties included were Zm-627, Zm-525 and
Zm07SADVI (from CJMMYT) and Sheetal, Deuti, Ganesh-1, Mankamana-1,
Manakamana-3, Manakamana-4, Manakamna-6, Poshilo Makai-1 (released varieties) and
Farmers' local as check. Scoring was done three times on 1-5 scale given by Saghai and
Maroo (1993). The experiments conducted during 2009 and 2010 rainy season revealed that
genotypes Zm-627, Zm-525 and Zm07SADVJ were least affected by the diseases during
both the years. Recommended varieties Sheetala, Deuti and Ganesh-1 performed better than
local check in both years. Whereas, Mankamana-3, Mankamana-6, Poshilo Makai-1,
Mankamana-4 and Mankamana-1 were less affected by the disease as compared to local
check during 2010 but were more affected than local during 2009. On the basis of yield,
Ganesh-1 performed best during 2009 and Zm-07SADVI was best during 201 0.
Manakamana-1 and Manakamana-3 were worst yielder on GLS affected conditions whereas
other varieties were better than farmers' local. Per cent ear rot at the time of harvest was
minimum in farmers' local (2.38%) followed by Mankamana-3 (5.56%) and Ganesh-1
(5 .88%). Per cent ear rot in other varieties ranged between 11- 26%. Per cent ear rot at the
time of harvest fotmd to increase with increase in open cob percentage.Link for e-copy: http://elibrary.narc.gov.np/?r=962 E-copies
http://nkcs.org.np/narc/dl/?r=962URL
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. II / Giri, Y.P.
Title : Evaluation of pesticides against grey leaf spot disease of maize in the eastern mid-hills of Nepal Material Type: printed text Authors: N.K Dangal, Editor ; P Joshi ; D.L. Mandal, Author ; Chaudhary, R.N., Author ; Chaudhary, B.N., Author Pagination: 318-321 p. Keywords: Bio-control agent cercospora zeae maydis ; disease severity scory yield Abstract: Grey leaf spot (GLS), caused by Cercospora zeae maydis, is a major disease of maize in the
eastern hills of Nepal. It is also becoming a threat to maize cultivation in the western hills
ofthe country. A field experiment was conducted during 2011 and 2012 in the eastern mid
hills of Nepal to identify the effective pesticides for management of the disease. The
experiment was conducted in Diktel, Khotang at 1400 mas) under natural incidence of grey
leaf spot disease. The experiment was conducted in a randomized complete block design
with 3 replications. Local variety of maize was planted in a plot of 9 m2
• Five pesticides
including bio-control agents were evaluated along with a control (water spray) for their
efficacy in the management of grey leaf spot of maize. The treatments were
Metalaxyi+Mancozeb, Carbendazim, Copper oxychloride, Pseudomonas+ Trichoderma and
Pseudomonas, The pesticideswere applied after the appearance of the disease at silking
stage. Disease scoring was done at 15 days after spraying. Pesticides and bio-control agents
differed significantly in controlling the target disease and producing higher grain yield.
Carbendazim and Metalaxyi+Mancozeb were equally effective in lowering disease severity
(45 .53 and 46.87%). Use of Copper oxychloride (48.33%) was similar to use of
Pseudomonas+Trichoderma (54.17%) in minimizing disease severity. All chemicals and
bio-control agents were superior to control in managing grey leaf spot and producing higher
grain yield. Application of Carbendazim produced the highest grain yield (3.84 tlha)
followed by Metalaxyl+Mancozeb (3.80 tlha) and Copper oxychloride (3.66 t/ha).The
control plot recorded the highest disease severity of 61.53% with production of the lowest
grain yield of 3.03 t/ha. Thus, incidence and severity of the grey leaf spot disease can be
minimized with higher grain production of maize by the use of pesticide Carbendazim in
the disease prone areas of eastern hills.Link for e-copy: http://elibrary.narc.gov.np/?r=961 Evaluation of pesticides against grey leaf spot disease of maize in the eastern mid-hills of Nepal [printed text] / N.K Dangal, Editor ; P Joshi ; D.L. Mandal, Author ; Chaudhary, R.N., Author ; Chaudhary, B.N., Author . - [s.d.] . - 318-321 p.
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. II / Giri, Y.P.
Keywords: Bio-control agent cercospora zeae maydis ; disease severity scory yield Abstract: Grey leaf spot (GLS), caused by Cercospora zeae maydis, is a major disease of maize in the
eastern hills of Nepal. It is also becoming a threat to maize cultivation in the western hills
ofthe country. A field experiment was conducted during 2011 and 2012 in the eastern mid
hills of Nepal to identify the effective pesticides for management of the disease. The
experiment was conducted in Diktel, Khotang at 1400 mas) under natural incidence of grey
leaf spot disease. The experiment was conducted in a randomized complete block design
with 3 replications. Local variety of maize was planted in a plot of 9 m2
• Five pesticides
including bio-control agents were evaluated along with a control (water spray) for their
efficacy in the management of grey leaf spot of maize. The treatments were
Metalaxyi+Mancozeb, Carbendazim, Copper oxychloride, Pseudomonas+ Trichoderma and
Pseudomonas, The pesticideswere applied after the appearance of the disease at silking
stage. Disease scoring was done at 15 days after spraying. Pesticides and bio-control agents
differed significantly in controlling the target disease and producing higher grain yield.
Carbendazim and Metalaxyi+Mancozeb were equally effective in lowering disease severity
(45 .53 and 46.87%). Use of Copper oxychloride (48.33%) was similar to use of
Pseudomonas+Trichoderma (54.17%) in minimizing disease severity. All chemicals and
bio-control agents were superior to control in managing grey leaf spot and producing higher
grain yield. Application of Carbendazim produced the highest grain yield (3.84 tlha)
followed by Metalaxyl+Mancozeb (3.80 tlha) and Copper oxychloride (3.66 t/ha).The
control plot recorded the highest disease severity of 61.53% with production of the lowest
grain yield of 3.03 t/ha. Thus, incidence and severity of the grey leaf spot disease can be
minimized with higher grain production of maize by the use of pesticide Carbendazim in
the disease prone areas of eastern hills.Link for e-copy: http://elibrary.narc.gov.np/?r=961 E-copies
http://nkcs.org.np/narc/dl/?r=961URL
in Agricultural research for poverty alleviation and livelihood enhancement. Proceedings of the 3rd SAS-N Convention 27-29 August 2008, Lalitpur / Paudyal, Krishna Prasad
Title : Monitoring of citrus fruit flies with different lures and its management on sweet orange orchard Material Type: printed text Authors: Bajracharya, A.S.R., Author ; G.P Timsina, Author ; Sharmila P K Ghimire, Author ; D.L. Mandal, Author ; S.N Mehta, Author Pagination: 151-157 p. Languages : English (eng) Abstract: Experiments were conducted at Kagate (1400 masl) of Dhankuta district on evaluation of different lures and management of citrus fruit flies at sweet orange orchard, and losses of sweet orange caused by citrus fruit flies during 2062 and 2063 fruiting season. Different compositions of protein lure (Treatment I: 22.2 g yeast extract + 27.8 g borax + 1000 ml distilled water, treatment II: 33.3 g yeast extract + 27.8 g borax + 0.5 g peptone + 1000 ml distilled water and Treatment III: 44.4 g yeast extract + 27.8 g borax + 1 g peptone + 1000 ml distilled water) and methyl eugenol with malathion…………………
Link for e-copy: http://elibrary.narc.gov.np/?r=1517 Monitoring of citrus fruit flies with different lures and its management on sweet orange orchard [printed text] / Bajracharya, A.S.R., Author ; G.P Timsina, Author ; Sharmila P K Ghimire, Author ; D.L. Mandal, Author ; S.N Mehta, Author . - [s.d.] . - 151-157 p.
in Agricultural research for poverty alleviation and livelihood enhancement. Proceedings of the 3rd SAS-N Convention 27-29 August 2008, Lalitpur / Paudyal, Krishna Prasad
Languages : English (eng)
Abstract: Experiments were conducted at Kagate (1400 masl) of Dhankuta district on evaluation of different lures and management of citrus fruit flies at sweet orange orchard, and losses of sweet orange caused by citrus fruit flies during 2062 and 2063 fruiting season. Different compositions of protein lure (Treatment I: 22.2 g yeast extract + 27.8 g borax + 1000 ml distilled water, treatment II: 33.3 g yeast extract + 27.8 g borax + 0.5 g peptone + 1000 ml distilled water and Treatment III: 44.4 g yeast extract + 27.8 g borax + 1 g peptone + 1000 ml distilled water) and methyl eugenol with malathion…………………
Link for e-copy: http://elibrary.narc.gov.np/?r=1517 E-copies
http://nkcs.org.np/narc/dl/?r=1517URL
