Estudo de pulverização a baixo volume em citros com atomizador de bocais oscilantes.

Abstract

The low-volume spray technique for citrus protection is compared with the usual gun-spray practice. Controled fie ld tests using both practices and the "citrus rust nrlte" - Phyllocoptruta oleivora (Ashm) and the disease caused by the fungus Elsinoe australts as indicators, were performed for comparison between techmques. The results show that 1 to 2 liters per plant were equivalent to ° to 10 liters per plant. In the "citrus rust irrite" control test, 2 liters per plant presented o f spotted fruits versus 70% mesured on the "control p lot". In the Elsinoe australis control the data show 4%, control against 4% on the "control p lot". The low-volume spray applications were performed with an "Atomizador BV-Jacto" specially adapted for these studies with oscilating outlets.