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Author Sharma, P. N. |
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Refine your searchLife Cycle and Behavior of Citrus Green Stink Bug, Rhynchocoris Lmmeralis Thunberg / Manandhar, R. ; Joshi, S.L. ; Sharma, P. N.
Title : Life Cycle and Behavior of Citrus Green Stink Bug, Rhynchocoris Lmmeralis Thunberg Material Type: printed text Authors: Manandhar, R., Author ; Joshi, S.L., Author ; Sharma, P. N., Author Pagination: 50-54 p. Languages : English (eng) Keywords: citrus green stink bug, fruit drop, life cycle, mandarin orange Abstract: Rhynchocoris Jwmeralis Thunberg (Citrus green stink bug: CGSB) is one of the important
insect pests of mandarin in the westem hills of Nepal, that causes premature fruit drop in
mandarin, resulting heavy loss in fruit yield. This study aims to manage it through integrated
approach, which comprises of its field life cycle and behavior. This study was carried at
Hemja (1060 mas 1.) and Lrmrfe (1675 mas l.) during June to December 2001 and 2002.
Freshly hatched nymphs were inoculated in sleeve cage that was confined to a branch having
2-3 small fruits. Observations were made to record incubation period of egg, duration of each
nymphal instar and number of dropped fruits at each instar. This study revealed that the pest
had five nymphal stages prior to emerge as an adult. The first instar stmted feeding on the
fruit that induced fruit drop. The adult of CGSB remained alive for more than 50 days in the
winter to build population for the next season.Link for e-copy: http://elibrary.narc.gov.np/?r=454 Life Cycle and Behavior of Citrus Green Stink Bug, Rhynchocoris Lmmeralis Thunberg [printed text] / Manandhar, R., Author ; Joshi, S.L., Author ; Sharma, P. N., Author . - [s.d.] . - 50-54 p.
Languages : English (eng)
Keywords: citrus green stink bug, fruit drop, life cycle, mandarin orange Abstract: Rhynchocoris Jwmeralis Thunberg (Citrus green stink bug: CGSB) is one of the important
insect pests of mandarin in the westem hills of Nepal, that causes premature fruit drop in
mandarin, resulting heavy loss in fruit yield. This study aims to manage it through integrated
approach, which comprises of its field life cycle and behavior. This study was carried at
Hemja (1060 mas 1.) and Lrmrfe (1675 mas l.) during June to December 2001 and 2002.
Freshly hatched nymphs were inoculated in sleeve cage that was confined to a branch having
2-3 small fruits. Observations were made to record incubation period of egg, duration of each
nymphal instar and number of dropped fruits at each instar. This study revealed that the pest
had five nymphal stages prior to emerge as an adult. The first instar stmted feeding on the
fruit that induced fruit drop. The adult of CGSB remained alive for more than 50 days in the
winter to build population for the next season.Link for e-copy: http://elibrary.narc.gov.np/?r=454 E-copies
http://nkcs.org.np/narc/dl/?r=454URL
in Agricultural research for enhancing livelihood of Nepalese people: Proceedings of 2nd SAS-N Convention, 30 July-1 Aug 2003, Kathmandu / Joshi, Bal K.
Title : Monitoring field status of naturally occurring egg parasitoids of Citrus Green Stink Bug, Rhynchocoris Humeralis Thunberg and their identifications Material Type: printed text Authors: Manandhar, R., Author ; Sharma, P. N., Author ; Devkota, S.R., Author Pagination: 174-177 p. Languages : English (eng) Abstract: The naturally occurring parasitoids of citrus green stinkbug were monitored at Bandipur (1000 masl), Bachegaon (660 masl) and Lohi (450 masl) in Tanahun district; Karendada (940 masl), Syangja district and Pokhara (850 masl), Kaski district in 2000 and 2001. The results revealed that the egg parasitoids namely Anastatus sp. Trissolcus latisculus Crawford and Ooencyrtus utitheisae Risbec are widely distributed in this region. O. utitheisae was the most prevalent species followed by Anastatus sp and T. latisculus. The average ratio of parasitoid- pest was found to be 1:1.87.
Link for e-copy: http://elibrary.narc.gov.np/?r=1136 Monitoring field status of naturally occurring egg parasitoids of Citrus Green Stink Bug, Rhynchocoris Humeralis Thunberg and their identifications [printed text] / Manandhar, R., Author ; Sharma, P. N., Author ; Devkota, S.R., Author . - [s.d.] . - 174-177 p.
in Agricultural research for enhancing livelihood of Nepalese people: Proceedings of 2nd SAS-N Convention, 30 July-1 Aug 2003, Kathmandu / Joshi, Bal K.
Languages : English (eng)
Abstract: The naturally occurring parasitoids of citrus green stinkbug were monitored at Bandipur (1000 masl), Bachegaon (660 masl) and Lohi (450 masl) in Tanahun district; Karendada (940 masl), Syangja district and Pokhara (850 masl), Kaski district in 2000 and 2001. The results revealed that the egg parasitoids namely Anastatus sp. Trissolcus latisculus Crawford and Ooencyrtus utitheisae Risbec are widely distributed in this region. O. utitheisae was the most prevalent species followed by Anastatus sp and T. latisculus. The average ratio of parasitoid- pest was found to be 1:1.87.
Link for e-copy: http://elibrary.narc.gov.np/?r=1136 E-copies
http://nkcs.org.np/narc/dl/?r=1136URL
in Proceedings of the 9th National Outreach Research Workshop 7-8 June 2010 (24-25 Jestha 2067) held at Khumaltar, Laltipur / Paudel, Mina Nath
Title : Screening of resistance for maize inbreds and hybrids against maize weevil (Sitophilus zeamais Motsh) Material Type: printed text Authors: Sharma, P. N., Author ; Thapa, R.B., Author ; Gautam, P., Author ; Giri, Y.P., Author Pagination: 196-200 p. Languages : English (eng) Link for e-copy: http://elibrary.narc.gov.np/?r=2148 Screening of resistance for maize inbreds and hybrids against maize weevil (Sitophilus zeamais Motsh) [printed text] / Sharma, P. N., Author ; Thapa, R.B., Author ; Gautam, P., Author ; Giri, Y.P., Author . - [s.d.] . - 196-200 p.
in Proceedings of the 9th National Outreach Research Workshop 7-8 June 2010 (24-25 Jestha 2067) held at Khumaltar, Laltipur / Paudel, Mina Nath
Languages : English (eng)
Link for e-copy: http://elibrary.narc.gov.np/?r=2148 E-copies
http://nkcs.org.np/narc/dl/?r=2148URL
in Agricultural Research for Development: Proceedings of fourth SAS-N Convention, 4-6 April 2012, Lalitpur / Hira K. Manandhar
Title : Screening of resistance for stored grains of promising maize genotypes against maize weevil (Sitophilus zeamais Motsch) Material Type: printed text Authors: Sharma, P. N., Author ; Giri, Y.P., Author ; G.S Bhandari, Author ; Thakur, P., Author Pagination: 95-98 p. Languages : English (eng) Abstract: Maize weevil (Sitophilus zeamais Motsch) is one of the serious insect pests of stored grains of maize in Nepal. Weevil resistant maize is the best option to minimize maize loss in storage. Maize grains of 14 maize genotypes were evaluated for their resistance against maize weevil under free choice test under room conditions. Maize resistance was evaluated based on grain damage index (GDI) value ranging from 0.00 to 1 calculated based on the number of weevils in F1 progeny, rubbish weight from the damaged grains, and weight loss from the sample grains. Non-preference resistance was also tested for the test entries. Among the 14 maize genotypes, seven genotypes were found less damaged (GDI: 0.34-0.49), five were found moderately damaged (GDI: 0.50-0.65), and two were found highly damaged (GDI: 0.66-0.82). The maize genotype ‘Rampur SO3FO4’ was the least damaged one (GDI: 0.34) whereas the genotype ‘RML4 x NML2’ was the most damaged one (GDI: 0.82)……………………
Link for e-copy: http://elibrary.narc.gov.np/?r=1613 Screening of resistance for stored grains of promising maize genotypes against maize weevil (Sitophilus zeamais Motsch) [printed text] / Sharma, P. N., Author ; Giri, Y.P., Author ; G.S Bhandari, Author ; Thakur, P., Author . - [s.d.] . - 95-98 p.
in Agricultural Research for Development: Proceedings of fourth SAS-N Convention, 4-6 April 2012, Lalitpur / Hira K. Manandhar
Languages : English (eng)
Abstract: Maize weevil (Sitophilus zeamais Motsch) is one of the serious insect pests of stored grains of maize in Nepal. Weevil resistant maize is the best option to minimize maize loss in storage. Maize grains of 14 maize genotypes were evaluated for their resistance against maize weevil under free choice test under room conditions. Maize resistance was evaluated based on grain damage index (GDI) value ranging from 0.00 to 1 calculated based on the number of weevils in F1 progeny, rubbish weight from the damaged grains, and weight loss from the sample grains. Non-preference resistance was also tested for the test entries. Among the 14 maize genotypes, seven genotypes were found less damaged (GDI: 0.34-0.49), five were found moderately damaged (GDI: 0.50-0.65), and two were found highly damaged (GDI: 0.66-0.82). The maize genotype ‘Rampur SO3FO4’ was the least damaged one (GDI: 0.34) whereas the genotype ‘RML4 x NML2’ was the most damaged one (GDI: 0.82)……………………
Link for e-copy: http://elibrary.narc.gov.np/?r=1613 E-copies
http://nkcs.org.np/narc/dl/?r=1613URLE-copies
http://nkcs.org.np/narc/dl/?r=2535URL
