combate experimental ao ácaro da leprose brevipalpus phoenicis (geijskes, 1939) em citros

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ID: 212187
1993
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Abstract
Com o objetivo de combater o ácaro Brevipalpus phoenicis (Geijskes), transmissor do vírus da leprose, foi estudada a eficiência de diferentes defensivos químicos. Os tratamentos foram seis, cada um com quatro repetições. A) propargite (0,05 CE 72%) + enxofre (1,0 SC 75%); B) peropal (0,1 kg PM 25%); C) quinometionato (0,05 kg PM 70%) (padrão); D) dicofol + tetradifom (0,2 CE 16% + 6%); E) propargite (0,075 CE 72%); F) testemunha. Cada laranjeira recebeu dez litros de calda numa única aplicação; usou-se o espalhante-adesivo "Extravon", à razão de 20 cm³/l00 litros de calda. Foram feitas cinco avaliações de infestações de ácaro: uma 4 dias antes da aplicação e outras após 16, 31, 45 e 60 dias da pulverização. Com exceção dos tratamentos propargite + enxofre (aos 16 dias) e quinometionato (aos 60 dias), todos os produtos apresentaram porcentagem de redução real da praga acima de 80% nas diferentes épocas de avaliação.
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 72% EC) + sulphur (1,0 75% CS); B) peropal (0.1 kg 25% MP); C) quinomethionate (0.05 kg 70% MP) (standard treatment); D) dicofol + tetradifon (0.2 (16% + 6%) EC; E) propargite (0.075 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).
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Authors ;H.M. Campos Neto;E. Moura;H.R. Passos;F. Ciniglio Neto;F.A.M. Mariconi;J.A. Scarpari Filho
Journal journal of the iranian chemical society
Year 1993
DOI
10.1590/S0103-90161993000200015
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161993000200015
Keywords
Citrus

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