Daayf F and Platt HW 1999.Assessment of mating types and resistance to metalaxyl of Canadian populations of Phytophthora infestans in 1997. American Journal of Potato Research 76:287-295.

Ongena M, Daayf F, Jacques P, Thonart P, Benhamou N, Paulitz TC, Cornélis P, Koedam N, and Bélanger RR. 1999. Protection of cucumber against Pythium root rot by fluorescent pseudomonads; predominant role of induced resistance over siderophores and antibiosis. Plant Pathology 48:66-76.

Daayf F and Platt HW 1999. Canadian Potato late blight survey in 1997. Canadian Plant Disease Survey 79:135-137.

Daayf F and Platt HW 1999. Evaluation of mating types and resistance to metalaxyl within Canadian populations of Phytophthora infestans from 1996 to 1998. Proc. Northeast Potato Technology Forum: 50-52.

Daayf F and Platt HW 1999.Changes in Canadian populations of Phytophthora infestans in Canada in 1998.Agri-Info Fact-sheet 99-07. Agdex 161 630.

Daayf F and Platt HW 1999. Cross-Canada Late Blight Project “1997-2000". Semi-annual and Annual reports for the 1998-1999 season. Agriculture-Canada, Charlottetown, PEI (REPORTS)

Daayf F, Platt HW and Mahuku G 1999. Investigating Phytophthora infestans diversity in Canada on the basis of RAPD-PCR markers, races, Gpi-allozyme patters, and mating types. Annual meeting of the American Phytopathological Society, August, Montreal, Canada. (PAPER)

Platt HW and Daayf F 1999. Canadian populations of Phytophthora infestans in 1998. Annual Meeting of the Potato Association of America, New Jersey, USA. (PAPER)

Daayf F and Platt HW 1999. Glucose phosphate isomerase isozymes, metalaxyl resistance, and mating types of Canadian populations of Phytophthora infestans in 1998. Annual meeting of the American Phytopathological Society, Montreal, Canada. (PAPER)

Platt HW and Daayf F 1999. In-vitro responses of Canadian Phytophthora infestans isolates to common late blight fungicides. Annual Meeting of the Potato Association of America, New Jersey, USA. (POSTER)