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Raj, Desh
- Natural Parasitism by Campoletis chlorideae Uchida, a Promising Parasitoid of Helicoverpa armigera (Hübner) on Chickpea
Abstract Views :244 |
PDF Views:158
Authors
R. K. Gupta
1,
Desh Raj
1
Affiliations
1 Sher-e-kashmir University of Agricultural Science & Technology Division of Entomology, FOA, Udheywalla Jammu 180002, Jammu and Kashmir, IN
1 Sher-e-kashmir University of Agricultural Science & Technology Division of Entomology, FOA, Udheywalla Jammu 180002, Jammu and Kashmir, IN
Source
Journal of Biological Control, Vol 17, No 1 (2003), Pagination: 9-12Abstract
Helicoverpa armigera (Hubner) larvae on chickpea were found to be parasitized by Apanteles sp., Diadegema fenestrale (Holmgren) and Campoielis chlorideae Uchida at Palampur, during two consecutive years. Among these, parasitization by the former two parasitoids remained negligible. However, the extent of parasitism by C. chlorideae ranged from 8.33 to 28.00 per cent. The parasitoid remained active from 2nd week of April to 1st week of May. Activity of the parasitoid ceased when the mean maximum temperature reached above 40°C and a significant positive correlation with total rainfall was observed. Multiple regression analysis revealed significant effect of relative humidity and total rainfall on larval parasitism, both individually as well as in association with other abiotic factors to the extent of 74.15 per cent.Keywords
Campoletis chlorideae, Helicoverpa armigera, Parasitism, Parasitoids, Seasonal Incidence.Full Text
- Mass Production of Wax Moths and Economics of Parasitoid, Apanteles galleriae Wilkinson Production
Abstract Views :258 |
PDF Views:122
Authors
S. C. Verma
1,
Desh Raj
1
Affiliations
1 Department of Entomology, H. P. Krishi Vishvavidyalaya, Palampur 176 062, Himachal Pradesh, IN
1 Department of Entomology, H. P. Krishi Vishvavidyalaya, Palampur 176 062, Himachal Pradesh, IN
Source
Journal of Biological Control, Vol 12, No 2 (1998), Pagination: 123-129Abstract
The experiment was conducted in the Department of Entomology, Himachal Pradesh, Krishi Vishvavidyalaya, Palampur during 1993-94. The cultures of wax moths namely Galleria mellonella (Linnaeus) and Achroia grisella (Fabricius) were raised on artificial diet. The larvae developed on artificial diet were utilized for mass rearing of the parasitoid, Apanteles galleriae Wilkinson. The maximum number of wax moths larvae were produced when jar size of 20.32 × 16.24 cm was used and when 45 female and 15 male parasitoids were released in the above mentioned jars and 200 larvae were exposed. The economics of parasitoid production was calculated as Rs. 0.66 per 10 adults of A. galleriae.
Keywords
Achroia grisella, Apanteles galleriae, Artificial Diet, Biocontrol, Galleria mellonella.Full Text
- Graft Compatibility Studies in Interspecific Tomato-Potato Grafts
Abstract Views :186 |
PDF Views:5
Authors
Affiliations
1 Department of Vegetable Science and Floriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, IN
2 Department of Plant Pathology, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, IN
1 Department of Vegetable Science and Floriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, IN
2 Department of Plant Pathology, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, IN
Source
Himachal Journal of Agricultural Research, Vol 42, No 1 (2016), Pagination: 29-31Abstract
An inter-specific tomato-potato graft study was undertaken in a naturally ventilated quonset polyhouse at Palampur during the autumn and winter seasons 2015. The treatments comprised of combination of two tomato hybrids [Avtar-7711 (S1) and GS-600 (S2)] as scions, three potato cultivars viz. Kufri Himsona (V1), Kufri Himalini (V2) and Kufri Giriraj (V3) as ischolar_mainstocks and two grafting methods viz. tongue grafting (G1) and cleft grafting (G2). GS-600 tongue grafted on Kufri Himalini (V2G1S2) resulted in maximum survival of grafted plants (93.25%) as well as grafting success rate (81.68%). Kufri Himalini (V2) was found to be the best ischolar_mainstock for tomato scions which gave 2 maximum survival of grafted plants (87.89%) as well as grafting success rate (76.59%). Cleft grafting (G2) resulted in maximum survival of grafted plants (84.13%) and grafting success rate (72.95%). Tomato scion GS-600 (S2) was found to be the best scion for potato ischolar_mainstocks which resulted in a significantly higher survival of grafted plants (85.72%) and grafting success rate (73.85%) as well. Kufri Himalini+GS- 600 was the best ischolar_mainstock-scion combination giving maximum survival of grafted plants and grafting success rate irrespective of the grafting methods used. It is also concluded from the study that irrespective of the ischolar_mainstocks and grafting methods employed, scion GS-600 (S2 always had better survival in grafted plants and a significantly higher grafting success rate at least for the three best performing treatments and grafting tomato on potato plants in compatible combinations had a significant impact on their survival.Keywords
Pomato, Vegetable Grafting, Graft Compatibility, Inter-Specific Grafting, Solanaceae.Full Text
References
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- Maharana T, Pati PN and Sahu GS. 1986. Effect of time of grafting in tomato-potato grafts. Advances in Horticulture and Forestry 4: 91-94.
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- Peres LEP, Carvalho RF, Zsogon A, Bermudez-Zambrano OD, Robles WGR and Tavares S. 2005. Grafting of tomato mutants onto potato ischolar_mainstocks: An approach to study leaf-derived signaling on tuberization. Plant Science 169: 680-688.
- Trudgill DL and Thompson R. 1987. The influence of stock and of scion on the growth and yield of potato plants produced by grafting cultivars of different maturity types. Potato Research 30 (2): 285-300.
- Tsror L and Nachmias A. 1995. Significance of the ischolar_main system in Verticillium wilt tolerance in potato and resistance in tomato. Israel Journal of Plant Science 43 (4): 315-323.