Trichoderma harzianum effect on mildew control (Pseudoperonospora cubensis) in cucumber crops

Authors

  • Allan Alvarado-Aguayo Universidad Agraria del Ecuador. Programa Regional de Enseñanza El Triunfo Author
  • Wilmer Pilaloa-David Universidad Agraria del Ecuador. Programa Regional de Enseñanza El Triunfo Author
  • Sinthya Torres-Sánchez Universidad Agraria del Ecuador. Ciudad Universitaria Milagro Author
  • Kevin Torres-Sánchez Instituto Agro Ganadero La Troncal Author

DOI:

https://doi.org/10.15517/rac.v43i1.35672

Keywords:

Antagonistic, biological control, fungal diseases, hypha, mycelium, mildew

Abstract

This research measured the effect of Trichoderma harzianum on mildew control (Pseudoperonospora cubensis) in cucumber crops (Cucumis sativus L.). A random complete block design (RCBD) relied on 5 treatments and 4 repetitions was carried out in Vainillo of El Triunfo city, Guayas province, Ecuador. The variables analyzed were: infection of mildew percentage, treatment efficiency, fruit length (cm), fruit diameter (cm), fruit per plant ratio, yield (kg per plant) and economic analysis. Once the test was carried out, the presence of mildew disease was verified, obtaining the highest percentage of efficacy (84.4%) in the control of treatments with Benomyl 50 WP, - 400 g.ha-1 and treatment with Tricho D - 500 g.ha-1 with 84.24% of efficacy. The best benefit cost ratio was the treatment with Benomyl 50 WP, - 400 g.ha-1 with 1.53 and treatment Tricho D.- 500 g.ha-1 with 1.50. It is recommended for the control of mildew in cucumber crops should apply T. harzianum in doses of 500 g.ha-1.

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Published

2026-10-16

How to Cite

Trichoderma harzianum effect on mildew control (Pseudoperonospora cubensis) in cucumber crops. (2026). Agronomía Costarricense, 43(1). https://doi.org/10.15517/rac.v43i1.35672