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Author G.S Bhandari |
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Refine your searchAssessment of maize stem borer, chilo partelius swinhoe infestation in year round weekly seeded maize varieties at NMRP, Rampur and its command areas / Thakur, P.
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. II / Giri, Y.P.
Title : Assessment of maize stem borer, chilo partelius swinhoe infestation in year round weekly seeded maize varieties at NMRP, Rampur and its command areas Material Type: printed text Authors: Thakur, P., Editor ; G.S Bhandari ; BB Achami, Author Pagination: 288-294 p. Keywords: Maize genotypes ; maize stem borer infestation varieties temperature Abstract: Maize genotypes i.e. Arun 2 (Short duration), Rampur composite (Long duration) and
Gaurav (Hybrid) were seeded in weekly interval throughout the years at NMRP, Rampur
during two consecutive years, 201 0/ 11 and 2011112 to assess the effect of environment on
growth and development of Maize Stem Borer, Chilo partel/us Swinhoe infestation along
with other associated pests. Percent insects' damage was in the similar trend in both the
years proportional to prevailing temperature. Range of borer damage varied from 4.53% to
61.03 % in 20 I 0/1 1 and 4.4% to 64.9 % in 2011/12. The percent infestation of the years
was found highest in the month of April (58.2 %) followed by May (48.2 %), July (44.9 %)
and March (42.7 %) and approximately similar movement of damage were recorded in
other parameters (Score, Tunnel length and exit holes) too. Out of three varieties tested,
Gaurav was comparatively more sensitive to maize stem borer damage (37.7%) than Arun 2
(34.5%) and Rampur composite (32.1 %). Beside this, twenty two other miner insects and
six beneficial insects were also recorded but their damage was nominal. Furthermore,
insects survey carried out at NMRP command areas inferred that maize stem borer was
major one and more or less uniform in each location however average percent damage as
recorded in field was found more at Sukranagar, Chitwan (20.6%) than Manahari,
Makawanpur (14.6%) and Madi, Chitwan (11.3%).Link for e-copy: http://elibrary.narc.gov.np/?r=956 Assessment of maize stem borer, chilo partelius swinhoe infestation in year round weekly seeded maize varieties at NMRP, Rampur and its command areas [printed text] / Thakur, P., Editor ; G.S Bhandari ; BB Achami, Author . - [s.d.] . - 288-294 p.
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. II / Giri, Y.P.
Keywords: Maize genotypes ; maize stem borer infestation varieties temperature Abstract: Maize genotypes i.e. Arun 2 (Short duration), Rampur composite (Long duration) and
Gaurav (Hybrid) were seeded in weekly interval throughout the years at NMRP, Rampur
during two consecutive years, 201 0/ 11 and 2011112 to assess the effect of environment on
growth and development of Maize Stem Borer, Chilo partel/us Swinhoe infestation along
with other associated pests. Percent insects' damage was in the similar trend in both the
years proportional to prevailing temperature. Range of borer damage varied from 4.53% to
61.03 % in 20 I 0/1 1 and 4.4% to 64.9 % in 2011/12. The percent infestation of the years
was found highest in the month of April (58.2 %) followed by May (48.2 %), July (44.9 %)
and March (42.7 %) and approximately similar movement of damage were recorded in
other parameters (Score, Tunnel length and exit holes) too. Out of three varieties tested,
Gaurav was comparatively more sensitive to maize stem borer damage (37.7%) than Arun 2
(34.5%) and Rampur composite (32.1 %). Beside this, twenty two other miner insects and
six beneficial insects were also recorded but their damage was nominal. Furthermore,
insects survey carried out at NMRP command areas inferred that maize stem borer was
major one and more or less uniform in each location however average percent damage as
recorded in field was found more at Sukranagar, Chitwan (20.6%) than Manahari,
Makawanpur (14.6%) and Madi, Chitwan (11.3%).Link for e-copy: http://elibrary.narc.gov.np/?r=956 E-copies
http://nkcs.org.np/narc/dl/?r=956URL
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. II / Giri, Y.P.
Title : Effect of wheather parameter's on maize productivity and insec population dynamics in Chitwan Material Type: printed text Authors: G.S Bhandari, Editor ; Thakur, P. ; Karki, T.B., Author ; B.B Achhami, Author ; B Bhandari, Author ; S Upadhyaya, Author Pagination: 295-303 p. Keywords: Maize ; Productivity Weather parameter insect population Climate change Abstract: With the aim of relating weather parameters with maize yield and insect population, a study
was carried-out at National Maize Research Program (NMRP), Rampur taking into account
the weather data from 1981 to 2012, maize yields and insect population in Chitwan. An
analysis of maximum temperature data revealed that average rise in temperature for the
period of 1981 to 2012 was 0.03°C to O.l3°C per annum. During the same period April and
the January were found to be the hottest and coldest months respectively. Regarding the
maize growing season, mean of the weeks revealed that maize stem borer, Chilo partellus
(Swinhoe ). damage was comparatively less (22.5%) at 21.1 °C during winter seeded maize
·plants than spring seeded (47.08% at 28.78°C) and rainy season seeded (47.03% at 29.2°C).
Outbreak of Tassel beetle, Chiloloba acuta (Wiedemann) observed in the last 3 years
might also be due to the effect of temperature. The precipitation pattern was erratic and
fluctuating and the maximum total rainfall was recorded in the year 1998 and the lowest in
2005. Monthly distribution of rainfall plummeted up during the month of July and sharply
decreased upto October then steady in trend. During the last 5 years, the total amount of
rainfall for the pre-monsoon period was recorded higher compared to the previous year's
data. Despite the increasing trends of maize yield in Chitwan, area is almost static.
Interestingly, during the year 2005 Chitwan received the lowest rainfall and that might have
affected the poorest total maize production.Link for e-copy: http://elibrary.narc.gov.np/?r=957 Effect of wheather parameter's on maize productivity and insec population dynamics in Chitwan [printed text] / G.S Bhandari, Editor ; Thakur, P. ; Karki, T.B., Author ; B.B Achhami, Author ; B Bhandari, Author ; S Upadhyaya, Author . - [s.d.] . - 295-303 p.
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. II / Giri, Y.P.
Keywords: Maize ; Productivity Weather parameter insect population Climate change Abstract: With the aim of relating weather parameters with maize yield and insect population, a study
was carried-out at National Maize Research Program (NMRP), Rampur taking into account
the weather data from 1981 to 2012, maize yields and insect population in Chitwan. An
analysis of maximum temperature data revealed that average rise in temperature for the
period of 1981 to 2012 was 0.03°C to O.l3°C per annum. During the same period April and
the January were found to be the hottest and coldest months respectively. Regarding the
maize growing season, mean of the weeks revealed that maize stem borer, Chilo partellus
(Swinhoe ). damage was comparatively less (22.5%) at 21.1 °C during winter seeded maize
·plants than spring seeded (47.08% at 28.78°C) and rainy season seeded (47.03% at 29.2°C).
Outbreak of Tassel beetle, Chiloloba acuta (Wiedemann) observed in the last 3 years
might also be due to the effect of temperature. The precipitation pattern was erratic and
fluctuating and the maximum total rainfall was recorded in the year 1998 and the lowest in
2005. Monthly distribution of rainfall plummeted up during the month of July and sharply
decreased upto October then steady in trend. During the last 5 years, the total amount of
rainfall for the pre-monsoon period was recorded higher compared to the previous year's
data. Despite the increasing trends of maize yield in Chitwan, area is almost static.
Interestingly, during the year 2005 Chitwan received the lowest rainfall and that might have
affected the poorest total maize production.Link for e-copy: http://elibrary.narc.gov.np/?r=957 E-copies
http://nkcs.org.np/narc/dl/?r=957URL
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 different pesticides for the management of rice stem borers Material Type: printed text Authors: G.S Bhandari, Editor ; B. Chaudhary ; B Sapkota, Author ; D.N Mahato, Author ; S.K Upadhyaya, Author Pagination: 304-309 p. Keywords: Botanical pesticide ; dead heart pesticides stem borer white ear Abstract: Rice Stem Borers have been recognized as the national pest of Rice in Nepal. Past studies
have estimated about 40% of total loss in Rice is due to Rice Stem Borer. An experiment
was conducted at Regional Agricultural Research Station, Tarahara during rice growing
season of 2011 and 2012 with the objective of evaluating differential efficacy of different
pesticides combinations against Rice Stem Borers. The experiment had 12 different
pesticides combinations laid out in a Complete Block Design with three replications.
Responses were recorded on count of dead hearts, count of white heads and grain yield to
compare the treatments. The effect of treatments on count of dead hearts was found highly
significant. Number of dead hearts was the least on Seedling Root Dipping with
chJorpyrifos 20% EC @ 2 milL of Water+ three sprays of imidacloprid 17.8% SL@ 1
ml/2L of water 30, 40 and SO days after transplanting (DAT) followed by Seedling Root
Dipping with chlorpyrifos 20% EC@ 2 milL of Water+ three sprays of Lantana camera
Extract @ S% solution 30, 40 and SO DA T and Root Dipping with chlorpyrifos 20% EC @
2 milL of water + Urea 20 gm IL of water for 3 hours + Lantana camera @ S% solution at
30, 40 and 50 OAT. The effect of treatments for count of white ears was also highly
significant. The Seedling Root Dipping with chlorpyrifos 20% EC @ 2 mi/L of Water+
three sprays ofimidacloprid 17.8% SL@ 1 mi/2L ofwater 30,40 and 50 DAT recorded the
lowest count of white ears followed by Root Dipping with chlorpyrifos 20% EC @ 2 milL
of Water + three sprays of Sweet Flag Stolen Extract @ 5% solution 30, 40 and 50 DA T
and Root Dipping with chlorpyrifos 20% EC @ 2 milL of Water + Lantana camera extract
@ 5% solution Spray 30, 40 and 50 DAT. The variation on grain yield was significant due
to the treatments. The highest grain yield was obtained from Root Dipping with
chlorpyrifos 20% EC @ 2 mVL of Water and Urea 20 g /L for 3 hours + three sprays of
imidacloprid 17.8% SL @ 1 ml/2L of water at 30,40 and 50 DAT followed by Root
Dipping with chloropyrifos and Urea 20 g /L for 3 hours + three sprays of Sweet Flag @
5% solution and Root Dipping with chlorpyrifos 20% EC @ 2 ml/L of Water+ three
sprays of Lantana camera Extract. All the treatments combinations were significantly
superior to the control and the standard check (carbofuran 3G) for all parameters
considered. This study concluded that application of botanical pesticides in combination
with chemical pesticides is effective for managing rice stem borer.Link for e-copy: http://elibrary.narc.gov.np/?r=958 Evaluation of different pesticides for the management of rice stem borers [printed text] / G.S Bhandari, Editor ; B. Chaudhary ; B Sapkota, Author ; D.N Mahato, Author ; S.K Upadhyaya, Author . - [s.d.] . - 304-309 p.
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. II / Giri, Y.P.
Keywords: Botanical pesticide ; dead heart pesticides stem borer white ear Abstract: Rice Stem Borers have been recognized as the national pest of Rice in Nepal. Past studies
have estimated about 40% of total loss in Rice is due to Rice Stem Borer. An experiment
was conducted at Regional Agricultural Research Station, Tarahara during rice growing
season of 2011 and 2012 with the objective of evaluating differential efficacy of different
pesticides combinations against Rice Stem Borers. The experiment had 12 different
pesticides combinations laid out in a Complete Block Design with three replications.
Responses were recorded on count of dead hearts, count of white heads and grain yield to
compare the treatments. The effect of treatments on count of dead hearts was found highly
significant. Number of dead hearts was the least on Seedling Root Dipping with
chJorpyrifos 20% EC @ 2 milL of Water+ three sprays of imidacloprid 17.8% SL@ 1
ml/2L of water 30, 40 and SO days after transplanting (DAT) followed by Seedling Root
Dipping with chlorpyrifos 20% EC@ 2 milL of Water+ three sprays of Lantana camera
Extract @ S% solution 30, 40 and SO DA T and Root Dipping with chlorpyrifos 20% EC @
2 milL of water + Urea 20 gm IL of water for 3 hours + Lantana camera @ S% solution at
30, 40 and 50 OAT. The effect of treatments for count of white ears was also highly
significant. The Seedling Root Dipping with chlorpyrifos 20% EC @ 2 mi/L of Water+
three sprays ofimidacloprid 17.8% SL@ 1 mi/2L ofwater 30,40 and 50 DAT recorded the
lowest count of white ears followed by Root Dipping with chlorpyrifos 20% EC @ 2 milL
of Water + three sprays of Sweet Flag Stolen Extract @ 5% solution 30, 40 and 50 DA T
and Root Dipping with chlorpyrifos 20% EC @ 2 milL of Water + Lantana camera extract
@ 5% solution Spray 30, 40 and 50 DAT. The variation on grain yield was significant due
to the treatments. The highest grain yield was obtained from Root Dipping with
chlorpyrifos 20% EC @ 2 mVL of Water and Urea 20 g /L for 3 hours + three sprays of
imidacloprid 17.8% SL @ 1 ml/2L of water at 30,40 and 50 DAT followed by Root
Dipping with chloropyrifos and Urea 20 g /L for 3 hours + three sprays of Sweet Flag @
5% solution and Root Dipping with chlorpyrifos 20% EC @ 2 ml/L of Water+ three
sprays of Lantana camera Extract. All the treatments combinations were significantly
superior to the control and the standard check (carbofuran 3G) for all parameters
considered. This study concluded that application of botanical pesticides in combination
with chemical pesticides is effective for managing rice stem borer.Link for e-copy: http://elibrary.narc.gov.np/?r=958 E-copies
http://nkcs.org.np/narc/dl/?r=958URL
in Proceedings of the 11th National Outreach Workshop 9-10 June 2014 (26-27 Jestha 2071), held at Regional Agricultural Research Station, Lumle, Kaski / Deepak Bhandari
Title : Management of armyworm outbreak in rice: a case from Chitwan district Material Type: printed text Authors: R P Mainali, Author ; S. Aryal, Author ; N. Dangi, Author ; G.S Bhandari, Author ; Ansari, A.R., Author Pagination: 56-59 p. Languages : English (eng) Link for e-copy: http://elibrary.narc.gov.np/?r=2507 Management of armyworm outbreak in rice: a case from Chitwan district [printed text] / R P Mainali, Author ; S. Aryal, Author ; N. Dangi, Author ; G.S Bhandari, Author ; Ansari, A.R., Author . - [s.d.] . - 56-59 p.
in Proceedings of the 11th National Outreach Workshop 9-10 June 2014 (26-27 Jestha 2071), held at Regional Agricultural Research Station, Lumle, Kaski / Deepak Bhandari
Languages : English (eng)
Link for e-copy: http://elibrary.narc.gov.np/?r=2507 E-copies
http://nkcs.org.np/narc/dl/?r=2507URL
in Proceedings of the 11th National Outreach Workshop 9-10 June 2014 (26-27 Jestha 2071), held at Regional Agricultural Research Station, Lumle, Kaski / Deepak Bhandari
Title : Participatory evaluation of hybrids and open pollinated maize genotypes in command districts of NMRP, Rampur, Chitwan, Nepal Material Type: printed text Authors: G.S Bhandari, Author ; Koirala, K.B., Author ; G Hamal, Author ; A. Aryal, Author ; Rijal, T.R., Author ; B Bhandari, Author Pagination: 132-137 p. Languages : English (eng) Link for e-copy: http://elibrary.narc.gov.np/?r=2522 Participatory evaluation of hybrids and open pollinated maize genotypes in command districts of NMRP, Rampur, Chitwan, Nepal [printed text] / G.S Bhandari, Author ; Koirala, K.B., Author ; G Hamal, Author ; A. Aryal, Author ; Rijal, T.R., Author ; B Bhandari, Author . - [s.d.] . - 132-137 p.
in Proceedings of the 11th National Outreach Workshop 9-10 June 2014 (26-27 Jestha 2071), held at Regional Agricultural Research Station, Lumle, Kaski / Deepak Bhandari
Languages : English (eng)
Link for e-copy: http://elibrary.narc.gov.np/?r=2522 E-copies
http://nkcs.org.np/narc/dl/?r=2522URL
