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Combate experimental ao ácaro da leprose Brevipalpus phoenicis (Geijskes, 1939) em citros

A field test was carried out to evaluate the performance of several pesticides for the control of the citrus leprosis mite Brevipalpus phoenicis. The treatments were as follows: A) propargite (0.05<IMG SRC="/img/revistas/sa/v50n2/15x.gif" WIDTH=8 HEIGHT=12> 72% EC) + sulphur (1,0<IMG SRC="/img/revistas/sa/v50n2/15x.gif" WIDTH=8 HEIGHT=12> 75% CS); B) peropal (0.1 kg 25% MP); C) quinomethionate (0.05 kg 70% MP) (standard treatment); D) dicofol + tetradifon (0.2<IMG SRC="/img/revistas/sa/v50n2/15x.gif" WIDTH=8 HEIGHT=12> (16% + 6%) EC; E) propargite (0.075<IMG SRC="/img/revistas/sa/v50n2/15x.gif" WIDTH=8 HEIGHT=12> 72% EC); F) check. The quantities of the products employed in the experiment were based on the commercial formulations for 100 liters of water. Each orange-tree received a single application of ten liters of spray. Five mite evaluations were made: 4 days before spray and 16, 31, 45 and 60 days after the application. All treatments resulted in real pest reduction, higher than 80%, except for A (16 days after the spray) and for treatment C (60 days after the application).

Brevipalpus phoenicis; citrus leprosis mite; citrus; juvenoid; acaricide


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