PREVENTION AND CONTROL OF STRAWBERRY CULTIVARS ROOT DISEASES

Abstract

In the climate conditions of Romania, the strawberry is cultivated in the open and protected field (greenhouses, plastic houses or in double polyethylene houses). The strawberry is cultivated for the health benefits of fruits which are consumed fresh or as processed products. The strawberry are often attacked by numerous pathogens common to other crop plants which attacks the root system of plants (Phytophthora fragariae, Verticillium albo – atrum, Phytophthora cactorum, Rhizoctonia solani) foliar system (Mycospaerella fragariae, Botritys cinerea, Sphaerotheca macularis) and fruits (Botritys cinerea, Phytophthora cactorum). In favorable conditions for the emergence and evolution of the attack this pathogenic agents cause great damages on the strawberry cultures. In this paper are presented results regarding the frequency of attack of Phytophthora sp., Verticillium albo-atrum and Rhizoctonia solani on the strawberry roots, as well as prevention and control means. The results obtained conducted to the conclusion that the strawberry root system is especially attacked by the Phytophthora fragariae and Verticillium albo-atrum fungi. In conclusion, in all experimental variants studied the method of soil treatment with hyper heated steams at 90oC for one hour and the chemical disinfection with Dazomet 500 kg/ha are polyvalent and effective in preventing the fungi attack appearance of Phytophthora fragariae, Verticillium albo-atrum and Rhizoctonia fragariae.

Keywords

• disinfection
• cultura media
• pathogenic agents