Atomização e pulverização hidráulica elétrica para o manejo de pragas em maracujazeiro: qualidade de aplicação de bioinsumos

Abstract

The present work aims to evaluate the application quality parameters between atomizing sprayers and electric hydraulic sprayers. The study was carried out in the municipality of Areia, Paraíba, in an area where sour passion fruit cultivation on the Chã II property belonging to the Federal University of Paraíba. The treatments used were composed of two coastal sprays and two sprays, one being just water and the other consisting of Fitoneem® and adjuvant diluted in water. The treatments were purchased in four blocks, which were applied to the leaf canopy of passion fruit plants. Therefore, the first treatment consisted of the Manual and Electric Sprayer with just water (T1); the second treatment was the Atomizer sprayer with just water (T2); the third treatment was Manual and Electric Sprayer with Fitoneem® + Santara Power®; and the fourth treatment was the Atomizer spray with the Fitoneem ® + Santara Power ® treatment. There is evidence that there was no change in treatments with variables, average droplet area, average diameter, DV10, DV50 and DV90. The highest average and maximum droplet density is observed in the electrical energy condition using H2O, there is no difference between the interruptions of Fitoneem, electrical energy equipment and atomizer. In water atomization, a lower average and maximum droplet density is found. Treatment with electric spraying presents the best analyzes when considering the relative amplitude of the drops.