Research concerning the pathogens control on melons crops in the field

Abstract

The melons crops in the field crops are frequently attacked byPseudoperonospora cubensis (downy mildew) Sphaerotheca fuliginea (powdery mildew) and Alternaria cucumerina (alternaria leaf spot).For controlling of these pathogens there were experimented different mixture between fungicides: Melody Compact 49 WG, Ortiva 250 SC, Bravo 500 SC and Dithane M 45 WP with Score 250 SC or Orius 25 EW.For controlling of pathogen Pseudoperonospora cubensis the best results were obtained with following mixtures: Melody Compact 49 WG 0.2 % + Score 250 SC 0,05 % and Melody Compact 40 WG 0,2 % + Orius 25 EW 0.05 %, with 97.7% efficacy and respectively 95.2 %.For controlling of pathogen Sphaerotheca fuliginea the best results were obtained with following mixtures: Ortiva 250 SC 0,075 % + Score 250 SC 0,05 % and Ortiva 250 SC 0,075 % + Orius 25 EW 0.05 % with 100 % efficacy. The same variants gave good results in controlling of pathogen Alternaria cucumerina, with 91.8 % efficacy and respectively 89.8 %.