Evaluar el comportamiento de cuatro fungicidas en mezclas prueba de hoja simple para controlar sigatoka negra mycosphaerella fijiensis morelet en el cultivo de banano

The black Sigtoka, is the causative agent of constant attacks that cause severe loss of leaf area for banana plantations in the province of El Oro, therefore its control causes great economic losses.This fungus has a genetic diversity due to sexual reproduction and short life cycle, thus causing new generations per year therefore to possess these features makes handling difficult control every year, due to misuse of the fungicide and poor rotation in your application not meet the standards set by FRAC.The purpose of this research was to evaluate the four fungicides to control mix black Sigatoka leaf test simple.Initially proceeded to count sheets up and down taking into account the point candela each banana plant to be evaluated, then the evaluation was conducted on the percentage of fungal evolutionary state in each of the leaves of each plant. Once these steps use the machine created by BASF (Simulaytor) making the fungicide spraying the plants with their respective treatments. Evaluations of percent black Sigatoka infection proceeded to perform at the seven days after application until 42 days after application, after obtaining the field data was realized that the use of physical mixture as it is (Regnum + Volley) and a chemical mixture as Comet Gold showed the best residual control and control of black Sigatoka is therefore evident that the use of the Gold Comet strobilurin chemical mixture, gives excellent results because it has two active ingredients as what is (pyraclostrobin + fenpropimorph)

• Tác giả chính: Rivera Intriago, Holger Rogelio (author)
• Định dạng: bachelorThesis
• Ngôn ngữ: spa
• Được phát hành: 2013
• Những chủ đề: FUNGICIDAS; SIGATOKA NEGRA; BANANO; PUNTO CANDELA
• Truy cập trực tuyến: http://repositorio.utmachala.edu.ec/handle/48000/849