Charles Karavina

Qualifications:

  • Master of Science in Crop Protection (University of Zimbabwe).
  • Bachelor of Agriculture (Honours) Crop Science

Areas of Research

  • Plant Disease Epidemiology and Management.

Current Research

  • Evaluation of brassicas for nematode management.

Recent Publications (2010-2013) 

  1. Mandumbu R, S.J. Twomlow, Jowah, P, Mashingaidze N, Hove L and Karavina C. 2012. Weed seed bank response to tillage and residue management in semi-arid Zimbabwe. Archives of Phytopathology and Plant Protection 45 (18): 2165 – 2176
  2. Tibugari H, Mandumbu R, Jowah P and Karavina C. 2012. Farmer knowledge, attitude and practice on cotton (Gossypium hirsutum) pest management strategies in Zimbabwe. Archives of Phytopathology and Plant Protection 45(20): 2395 – 2405
  3. Karavina C and Mandumbu R (2012). Biofumigation for crop protection: potential for adoption in Zimbabwe. Journal of animal and plant Sciences 14 (3): 1996 – 2005
  4. Parwada Cosmas, Gadzirayi Christopher, Karavina Charles and Munyati Vincent T. 2012. A review of agroforestry technologies adoption among small-holder farmers in Zimbabwe. Journal of Sustainable Development Studies 1(1): 68-92.
  5. Karavina Charles and Mandumbu Ronald. 2012.. Phytoparasitic Nematode Management Post-Methyl Bromide: Where to for Zimbabwe? International Journal of Agricultural Technology 8(4): 1141-1160. Available online http://www.ijat-aatsea.com. ISSN 1686-9141.
  6. Parwada C, Gadzirayi CT, Karavina C, Kubiku F, Mandumbu R, and BZ Madumbu. 2012. Tagetes minuta Formulation Effect Sitophilus zeamais (Weevils) Control in Stored Maize Grain. International Journal of Plant Research 2(3): 65-68. p-ISSN: 2163-2596. doi: 10.5923/j.plant.20120203.04
  7. Mandumbu R and C Karavina. 2012. Weed suppression and minor crop response in maize/pumpkin intercropping systems of Zimbabwe. Journal of Agricultural Science 4(7): 231-236. Available online at http://www.ccsenet.org/jas. ISSN 1916-5539.
  8. Karavina C, R. Mandumbu, C Parwada and T. Mungunyana. 2012. Variety and Planting Date Effects on the Incidence of Bollworms and Insect Sucking Pests of Cotton (Gossypium hirsutum L.). Research Journal of Agricultural Sciences 3(3): 607-610. Available online at www.rjas.info/papers. ISSN 0976-1675.
  9. Zivenge E and Karavina C. 2012. Analysis of factors influencing market channel access by communal horticulture farmers in Chinamhora District, Zimbabwe. Journal of Development and Agricultural Economics 4(6): 147-150. Available online http://www.academicjournals.org/JDAE.
  10. Tibugari H, Mombeshora D, Mandumbu R, Karavina C and C. Parwada. 2012. A comparison of the effectiveness of the aqueous extracts of garlic, castor beans and marigold in the biocontrol of root-knot nematode in tomato. Journal of Agricultural Technology 8(2): 479-492. Available online http://www.ijat-aatsea.com. ISSN 1686-9141.
  11. Karavina C, R. Mandumbu, C. Parwada and H. Tibugari. 2011. A review of the occurrence, biology and management of common bacterial blight. Journal of Agricultural Technology 2011 Vol. 7(6): 1459-1474. Available online http://www.ijat-aatsea.com. ISSN 1686-9141.
  12. Mandumbu R, Jowah P, Karavina C and H Tibugari. 2011. Integrated Weed Management in Zimbabwe’s Smallholder Sector, Where Are We? : A Review. Modern Applied Science 5(5): 111-117. Available online http://www.ccsenet.org/mas. ISSN 1913-1844 E-ISSN 1913-1852
  13. Karavina C, R. Mandumbu, C. Parwada and E. Zivenge. 2011. Epiphytic survival of Xanthomonas phaseoli (E. F. SM). Journal of Animal and Plant Sciences 9 (2): 1161- 1168. Available online  http://www.biosciences.elewa.org/JAPS. ISSN 2071 – 7024
  14. Karavina C, E. Zivenge, R. Mandumbu and C. Parwada. 2011. Jatropha curcas Production in Zimbabwe: Uses, challenges and the Way Forward. Modern Applied Science 5(2): 239-243. Available online http://www.ccsenet.org/mas. ISSN 1913-1844 E-ISSN 1913-1852

Recent Conferences: 

  1. Karavina C and Mandumbu R. 2012. Biofumigation for Crop Protection: potential for adoption in Zimbabwe. Paper presented at the Egerton University International Conference, 26-28 September 2012, Kenya.
  2. Mandumbu R, Karavina C and Mudzengi T. 2012. Effect of two organic fertilisers on Phaseolus vulgaris growth and yield. Presented at the Research and Intellectual Expo, Zimbabwe. The conference was held on 5 – 7 September 2012, University of Zimbabwe.
  3. Mandumbu R, Karavina C, Kudangirana W and Parwada C. 2012. The effect of crop row orientation and plant population on maize productivity and weeds. Presented at the Ergerton University International Conference, 26 – 28 September 2012, Kenya.
  4. Tibugari H, P Jowah, R Mandumbu, C Karavina and C Parwada. 2012. Cotton Insecticide Resistance Management Strategies in Zimbabwe: Impact of Climate Change. Paper presented at the Second Biennial International Conference and Exhibition, 18-19 April 2012, Lagos, Nigeria.