Published in Scientific Papers. Series B, Horticulture, Vol. LXVIII, Issue 1
Written by Gabriela ŞOVĂREL, Ion SCURTU, Simona HOGEA, Gicuța SBÎRCIOG
The main foliar diseases of melons, Pseudoperonospora cubensis and Sphaerotheca fuliginea, have a negative impact on fruit yield and quality. Also, in warm and dry summer, the mites (Tetranychus urticae) caused significant damages on melons crop in the field. This experiment aimed to study the efficacy of biological plant protection products for the control of mites, powdery and downy mildew on melons crops in field. The experiment includes 2 fungicides for downy mildew based on aluminum fosetyl, Mimosa tenuiflora extract and citrus, 2 biological fungicides for powdery mildew, based on Bacillus amyloliquefaciens Bacillus pumilus and 4 biological products used to mites control, based on potassium salts, mixture of terpenoids, cinnamon extract and saponified oil extract from Neem tree. The biological products had efficacy between 56.25 and 88.25% in the control of the adult mite T. urticae, 47.02-66.48% on P. cubensis and 71.25-84.76% on S. fuliginea. It is concluded that it is possible to grow melon in an organic way using these biological products for controlling the main diseases and pest on melons crop in the field.
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