ACTIVITY OF THE ETOXAZOLE ACARICIDE ON THE MORTALITY AND REPRODUCTION OF THE CITRUS LEPROSIS MITE Brevipalpus phoenicis (GEIJSKES) (Acari: Tenuipalpidae), IN CITRUS

作者：Celoto Fernando Juari; Papa Geraldo

来源：Revista Brasileira de Fruticultura, 2010, 32(4): 1038-1043.

DOI：10.1590/S0100-29452010005000123

• Dipheniloxazoline
• chemical control
• IPM
• Citrus sinensis

The objective of this work was to evaluate the activity of the etoxazole acaricide, on the mortality and reproduction of the citrus leprosis mite, B. phoenicis. A five centimeter diameter arena was demarcated with adhesive glue, in citrus fruits with high infestation of the mite. The design was entirely randomized plots with eight treatments and four replications. In each arena were counted the number of adults, young and eggs of B. phoenicis. The treatments consisted the following acaricides and doses in g a.i./100 L of water: etoxazole 110 SC (1.1; 1.65; 2.75 and 5.5); hexythiazox 500 WP (0.75); flufenoxuron 100 EC (3); cyhexatin 500 WP (25), applied direct on the arenas. The fruits were maintained in germination camera type BOD., with temperature of 25 +/- 2 degrees C and fotophase of 12 hours. The number of adults, young and eggs of mites were counted daily. The evaluated parameters were the ovicidal activity, sterilizer effect and efficiency on young forms. All of the evaluations were accomplished under microscope stereoscope. It was verified that the etoxazol causes mortality in young forms of the citrus leprosies mite superior to 95%, at the doses starting from of 1.1 g a.i./100 L of water. Eggs treated with etoxazol at the doses starting from 1.65 g a.i./100 L of water, presented unviable medium of 60%. Etoxazole presented sterilizing effect on females at the doses starting from 2.75 g a.i./100 L of water making unfeasible above 95% of the eggs.

• 出版日期2010-12