Biological control of late blight (Phytophthora infestans (Mont.) de Bary) in tomatoes with mycoextracts from Fusarium culmorum and Fusarium graminearum.
Following a screening completed over several species of fungus for establishing the efficiency of the extracts produced from them, against agent causing the late blight--Phytophthora infestans--two species of fungus were selected--Fusarium graminearum and Fusarium culmorum--in order to employ them and their strains with different virulence in the pathosystem fungi/Lycopersicumm esculentum. The utilized extracts are based on ethanol and obtained from mycelium and culture filtrate. Extract was applied 2 and respectively 7 days before the artificial inoculation, realized on the detached tomato's leaves and maintained at 17 degrees C and air relative humidity of 100%. The evaluation was done 6 days after the inoculation. The results show that for the treatment applied 2 days before inoculation the intensity of the attack was reduced by aprox. 60% compared with the control but for the inoculation at 7 days after the treatment, the intensity was not diminished.
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Banat's University of Agricultural Science and Veterinary Medicine Timişoara, Romania.
Grozea
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Chirita
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Badea
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D015169:Colony Count, Microbial; D005659:Fungicides, Industrial / Q000494:pharmacology*; D005670:Fusarium / Q000737:chemistry / Q000502:physiology; D018551:Solanum lycopersicum / Q000382:microbiology*; D010572:Pest Control, Biological / Q000379:methods*; D055750:Phytophthora infestans / Q000187:drug effects* / Q000254:growth & development*
D005659:Fungicides, Industrial