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About Institutes Public Relations Technology Transfer Students\International Information Center (Library) Administration
שלח באימייל הדפס
 
Name: Yuji Oka, Ph.D. (Researcher)
Units: Gilat CenterNematology
Research Interests / Job description  
Tel:  972 + (0)8-992-8659
Cell: 050-622-0124
Fax:08-9926485
Email:    okayuji@volcani.agri.gov.il
Office location:Gilat Reserch Center
Address:Nematology Unit
Gilat Research Center
Mobile Post Negev 85280
Israel
Research Interests / Job description
Control of plant-parasitic nematodes by organic and inorganic soil amendments
Nematode control by naturally occurring compounds
Induced resistance to nematodes in plants by chemicals
Nematode control in organic farming system
Biological control of nematodes
Development of chemical nematicides

 1. Articles in journal

Oka, Y., Chet, I. and Spiegel, Y. (1993). Control of the root-knot nematode Meloidogyne javanica by Bacillus cereus. Biocontrol Sci. Technol. 3: 115-126.

Oka, Y., Chet, I. and Spiegel, Y. (1997). An immunoreactive protein to wheat-germ agglutinin antibody is induced in oat roots following invasion of the cereal cyst nematode Heterodera avenae, and by jasmonate. Mol. Plant-Microbe Interact. 10: 961-969.

Oka, Y., Chet, I., Mor, M. and Spiegel, Y. (1997). A fungal parasite of Meloidogyne javanica eggs: evaluation of its use to control the root-knot nematode. Biocontrol Sci. Technol. 7: 489-497.

Oka, Y., Chet, I. and Spiegel, Y. (1997). Are pathogenesis-related proteins induced by Meloidogyne javanica or Heterodera avenae invasion? J. Nematol. 29: 501-508.

Oka, Y., Chet, I. and Spiegel, Y. (1997). Accumulation of lectins in cereal roots invaded by the cereal cyst nematode Heterodera avenae. Physiol. Mol. Plant Pathol. 51: 333-345.

Oka, Y., Cohen, Y. and Spiegel, Y. (1999). Local and systemic induced resistance to the root-knot nematode in tomato by dl-?-amino-n-butyric acid. Phytopathology 89: 1138-1143.

Oka, Y., Nacar, S., Putievsky, E., Ravid, U., Yaniv, Z. and Spiegel, Y. (2000). Nematicidal activity of essential oils and their components against the root-knot nematode. Phytopathology 90: 710-715.

Oka, Y., Koltai, H., Bar-Eyal, M., Mor, M., Sharon, E., Chet I. and Spiegel. Y. (2000). New strategies for control of plant-parasitic nematodes. Pest Manage. Sci. 56: 983-988.

Oka, Y. and Cohen, Y. (2001). Induced resistance to cyst and root-knot nematodes in cereals by DL-b-amino-n-butyric acid. Eur. J. Plant Pathol. 107: 219-227.

Oka, Y. (2001). Nematicidal activity of essential oil components against the root-knot nematode Meloidogyne javanica. Nematology 3: 159-164.

Oka, Y., Ben-Daniel, B. and Cohen, Y. (2001). Nematicidal activity of powder and extracts of Inula viscosa. Nematology 3: 735-742.

Oka, Y. and Pivonia, S. (2002). Use of ammonia-releasing compounds for control of the root-knot nematode Meloidogyne javanica. Nematology 4: 65-71.

Oka, Y. and Yermiyahu, U. (2002). Nematode-suppressive effects of composts against the root-knot nematode Meloidogyne javanica on tomato. Nematology 4: 891-898.

Gotlieb, D., Oka, Y., Ben-Daniel, B. and Cohen, Y. (2003). Dry mycelium of Penicillium chrysogenum protects cucumber and tomato plants against the root-knot nematode Meloidogyne javanica. Phytoparasitica 31: 217-225.

Oka, Y. and Pivonia, S. (2003). Effect of a nitrification inhibitor on nematicidal activity of organic and inorganic ammonia-releasing compounds against the root-knot nematode Meloidogyne javanica. Nematology 5: 505-513.

Oka, Y., Karssen, G. and Mor, M. (2003). Identification, host range and infection process of the root-knot nematode Meloidogyne marylandi from turf grass in Israel. Nematology 5: 727-734.

Oka, Y., Offenbach, R. and Pivonia, S. (2004). Pepper rootstock graft compatibility and response to Meloidogyne javanica and M. incognita. J. Nematol. 36: 137-141.

Raviv, M., Oka, Y., Katan, J., Hadar, Y., Yogev, A., Medina, S., Krasnovsky, A. and Zaidan, H. (2005). High-nitrogen compost as a medium for organic container-grown crops. Bioresour. Technol. 96: 419-427.

Oka, Y., Ben-Daniel B-H. and Cohen, Y. (2006). Control of Meloidogyne javanica by formulations of Inula viscosa leaf extracts. J. Nematol. 38: 46-51.

Oka, Y., Tkachi, N., Shuker, S., Rosenberg, R., Suriano, S. and Fine, P. (2006). Laboratory studies on the enhancement of nematicidal activity of ammonia-releasing fertilisers by alkaline amendments. Nematology 8: 335-346.

Mor, M. and Oka, Y. (2006). Histological study of giant cells formed by the root-knot nematode Meloidogyne artiellia as compared with M. hapla and M. javanica in cabbage, turnip and barley. Phytoparasitica 34: 502-509.

Oka, Y., Tkachi, N., Shuker S., Rosenberg, R., Suriano, S. and Fine, P. (2006). Field studies on the enhancement of nematicidal activity of ammonia-releasing fertilisers by alkaline amendments. Nematology 8: 881-893.

Oka, Y., Tkachi, N. and Mor, M. (2007). Phosphite inhibits development of the nematodes Heterodera avenae and Meloidogyne marylandi in cereals. Phytopathology 97: 396-404.

Oka, Y., Tkachi, N., Shuker S. and Yerumiyahu, U. (2007). Enhanced nematicidal activity of organic and inorganic ammonia-releasing amendments using neem extracts. J. Nematol. 39: 9-16.

Oka, Y., Shapira, N. and Fine, P. (2007). Control of root-knot nematodes in organic farming system by organic amendments and soil solarization. Crop Prot. 26:1556-1565.

Mor, M., Spiegel, Y. and Oka, Y. (2008). Histological study of syncytia induced in cereals by the Mediterranean cereal cyst nematode, Heterodera latipons. Nematology 10: 279-287.

Bar-Eyal, M., Sharon, E., Spiegel, Y. and Oka, Y. (2008). Laboratory studies on the biocontrol potential of the predatory nematode Koerneria sudhausi (Nematoda: Diplogastridae). Nematology 10: 633-637.

Oka, Y. and Mizukubo, T. (2009). Tomato culture filtrate stimulates hatching and activity of Meloidogyne incognita juveniles. Nematology 11: 51-61.

Oka, Y., Shuker, S. and Tkachi, N. (2009). Nematicidal efficacy of MCW-2, a new nematicide of the fluoroalkenyle group, against the root-knot nematode Meloidogyne javanica. Pest Manag. Sci. 65: 1082-1089.

Oka, Y. (2010). Mechanisms of nematode suppression by organic soil amendments-A review. Appl. Soil Ecol. 44: 101-115.

Edelstein, M., Oka, Y., Burger, Y., Eizenberg, H. and Cohen R. (2010). Variation in the response of cucurbits to Meloidogyne incognita and M. javanica. Israel J. Plant Sci. 58: 77-84.

Graber, E.R., Tsechansky, L., Khanukov, J. and Oka, Y. (2011). Sorption, volatilization and efficacy of the fumigant 1,3-dichloropropene in biochar-amended soil. Soil. Sci. Soc. Am. J. 75: 1365-1373.

Oka, Y., Shuker, S. and Tkachi, N. (2012). Systemic nematicidal activity of fluensulfone against the root-knot nematode Meloidogyne incognita on pepper. Pest Manag. Sci. 68: 268-275.

Oka, Y. (2012). Nematicidal activity of Verbesina encelioides against the root-knot nematode Meloidogyne javanica and effects on plant growth. Plant and Soil 355: 311-322. 

Oka, Y., Ben-Daniel B. and Cohen, Y. (2012). Nematicidal activity of the leaf powder and extracts of Myrtus communis to the root-knot nematode Meloidogyne javanica. Plant Pathol. 61: 1012-1020.

Oka, Y., Shuker, S. and Tkachi, N. (2013). Influence of some soil environments on the nematicidal activity of fluensulfone against Meloidogyne javanica. Pest Manag. Sci. 69: 1225-1234.

Oka, Y., Shuker, S. Tkachi, N., Trabelcy  B. and Gerchman Y. (2013). Nematicidal activity of Ochradenus baccatus against the root-knot nematode Meloidogyne javanica. Plant Pathol. 63: 221-231.

Cohen,  R., Tyutyunik, J., Fallik, E., Oka, Y., Tadmor, Y. and Edelstein, M. (2014). Phytopathological evaluation of exotic watermelon germplasm as a basis for rootstock breeding. Sci. Hort. 165: 203-210.  

Oka, Y. (2014). Nematicidal activity of fluensulfone against some migratory nematodes Pest Manag. Sci. 70: 1850-1858.

2. Book chapter

Oka, Y. (2010). Nematode control in organic farming: From the laboratory to the field. Organic Farming and Peanut Crops. (eds. D. C. Grossman and T. L. Barrios). Nova Publishers.

Updated on: 19/01/15 13:12
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