Chemical control efficiency of citrus rust mite

Abstract

Phyllocoptruta oleivora (ASHMEAD, 1879). A field test for chemical control of citrus rust mite was carried out in Limeira, State of São Paulo, Brazil. The treatments and the quantities of active ingredients per hectare were as follows: A - check; B - bromopropilate, 567-5g; C - fenpropathrin, 340.5g; D -chlofentezine, 567.5g; E - ometoate, 1397-0g; F - maneb, 1396.8g (table 1). The treatments had four repetitions and each one of these had three adult orange-trees. Six liters of the spray (water plus pesticide) were applied on each one. Mites were counted with stereoscopes microscopes on the leaves 02 days before the spray and 05, 11, 19, 32, 46, 60, 73, 89, 107 and 117 days after the application (table 2). The best results were obtained with bromopropilate and chlofentezine (bromopropilate was the best treatment in the first six counts; chlofentezine was the best in the last four avaliations (tables 3 and 4).