Hábitos y comportamiento del trips (Chaetanaphothrips signipennis bagnall) y acaro depredador (Amblyseius swirskii athias-henriot) en el cultivo establecido de banano orgánico (Musa paradisiaca L.).

Abstract

The present investigation aims to study the habits and behavior of the red rust thrips (Chaetanaphothrips signipennis Bagnall) and predatory mite (Amblyseius swirskii Athias Henriot) in an established crop of organic banana (Musa paradisiaca L). A lot of 10.5 ha and 180 offspring of plant height from 1 to 1.5 meters were selected for this study. In addition, the populations of red rust thrips and predatory mite were evaluated weekly for 8 weeks by means of counts in the middle-upper third on the bases of leaf insertion with the pseudostem "chantas" considering the average infestation index of red rust thrips (IMI), average index of mite predation (IMDp) and the zigzag sampling scheme. The Koppert company's methodology was used for mite, which is a generalist predator, its life cycle stages are carried out in the succession offspring, the middle and upper third of the plant is favorite to form its colonies, the petiolar bases of the pseudostem and "chantas" predating its natural enemies. The IMDp was between 1.117 and 9.361; average temperature: 25.28°C; environmental humidity: 80.5%; wind speed: 2 km/h. It is concluded that the habits and behaviors of the phytophagous are located in the upper third, pseudostem stalk bases are lucifugous; the predatory mite is located in the upper middle third, "chantas" and pseudostem stalk bases. Before releasing the predatory mite, it is convenient to carry out suprafoliar irrigation, while subfoliar irrigation can be carried out as it is always done with the person who responsible for irrigation in the organic banana crop. It should also be considered at the time of sampling of the phytophagous and predator to do it with caution and not to destroy the colonies of specimens.