Browsing by Author "Joseph, K J"

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    Advantages, disadvantages and the possibilities of the utilization of brachymeria parasites for the biological control of Nephantis Serinopa, the black-headed caterpillar pest of coconut
    (Kerala Agricultural University, 1977) Joy, P J; Joseph, K J
    This paper deals with the advantages and disadvantages of utilizing Brachymeria (Neobrachymeria) nosatoi and B. nephantidis as agents for the biological control of Nephantis serinopa.
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    Biology of Brachymeria Nephantidis Gahan and Brachymeria Lasus (walker) (Hymenoptera : Chalcididae)
    (Kerala Agricultural University, 1978) Joy, P J; Narendran, T C; Joseph, K J
    The detailed biology of Brachymeria nephantidis and Brachymeria Insus, two important, pupal parasites of the black headed caterpillar of coconut Nepliantis serinopa has been studied and the results are reported in this paper.
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    Economics analysis of rice - fish sequential farming system In the low lying paddy fields of Kuttanad, Kerala
    (Department of Agricultural Economics, College of Horticulture, Vellanikkara, 2001) Shanat Mathew, K; Joseph, K J
    The present study on "Economic analysis of rice-fish sequential farming system in the low lying paddy fields of Kuttanad, Kerala" was aimed to analyse comparative economics of rice monocropping and rice-fish sequential farming systems, to quantity the employment generation capacity of the integrated system and to identify the constraints in the wide spread adoption of rice-fish sequential farming system. The study was undertaken during May - July 2000 and the data pertains to the year 1999. Data for the study was generated through sample survey of farmers by personal interview method using a pretested structured interview schedule. The study was conducted with a sample of 100 farmers for each system of cultivation. Two stage random sampling was adopted for the study. Tabular analysis was used to analyse the data. The cost of cultivation (cost C3) of rice under monocropping (Rs.23419.47 per hectare) and of rice under sequential farming system (Rs.1972S.31 per hectare) Was estimated. For fish, the cost of cultivation per hectare was Rs.6768.39. The major expenditure on input for rice cultivation under both systems and for fish was human labour. In rice monocropping, land preparation was observed to be the most expensive operation, whereas, in sequential farming weeding was the most expensive operation. In the case of fish cultivation, harvesting of fish turned out to be the most cost consuming operation. Gross income per hectare realized from the main as well as by product at the aggregate level was Rs.2S252.50, Rs.28371.00, and Rs.8782.95 for rice (monocropping), rice (sequential farming) and fish respectively. Cost of production per quintal of rice (monocropping) was Rs.64S.16 and for rice (sequential farming) was Rs.482.0S. For fish, cost of production per quintal of fish estimated to be Rs.1538.62. Benefi t cost ratio at cost C3 was found to be highest (1.44) in the rice cultivation under sequential farming. The corresponding figures for rice monocropping and fish were 1.08 and 1.30 respectively. This new system could provide on additional employment of 14.31 mandays per hectare. Even though this new integrated systems was profitable, lack of finance and non co-operation among farmers to an extend hinder the adoption of this practice. The major constraints experienced by the farmers in the cultivation were also identified.
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    New host records for the chalcid parasite Brachymeria lasus (Walker) (Hymenoptera:Chalcidtdae)
    (Kerala Agricultural University, 1976) Narendran, T C; Joseph, K J
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    New records and new host records of some brachymeria species (hymenoptera : chalcididae)
    (Kerala Agricultural University, 1975) Narendran, T C; Joseph, K J
    Five species of Brachymeria viz. B- (Neobrachymeria^ nosatoi H , B. (B ) gitantica J. et al» B (B,) me&aspila (C.\ B. (B-> a\bottbialis (A.) and B (B. excarnata G. are reported for the first time from New Guinea (Austaralian realm and from five different new hosts. Another species vix. B- (B.) amphissa iW.) is reported for the first time from the host An.iphaeis aurota aurota (Pieridae) from India.
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    Redescriptions of three oriental species of brachymeria westwood (Hymenoptera: Chalcididae)
    (Kerala Agricultural University, 1972) Joseph, K J; Narendran, T C; Joy, P J
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    Resource use efficiency of paddy cultivation in Kuttanad
    (Department of Agricultural Economics, College of Horticulture, Vellanikkara, 1982) Joseph, K J; Rajendran, D V
    An investigation on the resource use efficiency and economics of paddy cultivation in Kuttanad region of Kerala State was conducted to measure the extent of resource use, resource use efficiency and to estimate the cost and returns of paddy, during 1980-81. Data were collected from a sample of 100 farmers selected at random. All the respondents were cultivating high yielding paddy varieties. The average per hectare use of human labour was 128.80 man days, out of which, family labour contributed only about ten percent.
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    Three new species of brachymeria westwood (hymenoptera: chalcid1dae) from north Kerala
    (Kerala Agricultural University, 1970) Joseph, K J; Narendran, T C; Joy, P J