The chemical control of the dithiocarbamate-resistant strain of the pink citrus rust mite, Aculops pelekassi (Keifer)
2004
Etoh, T. (Saga-ken. Fruit Tree Experiment Station, Ogi (Japan)) | Tashiro, N. | Qu, S. | Ide, Y.
Summary Occurrence of a dithicarbamate-resistant strain of the pink citrus rust mite, Aculops pelekassi (Keifer), was confermed in citrus orchards of Saga Prefecture in 1996. The efficacies of several chemicals to control the dithicarbamate resistant strain were evauated by the field test. Pyridaben, tebufenpyrad, pyrimidifn, were shown to be efficient chemicals. In recently years, the pyridaben is used to control thedithiocarbamate resistant strains of the pink citrusrust mite, Aculops pelekassi (Keifer). The optimum timing for control to the pink citrus rust mite is June to early in July, also the machine oil is spreaded widely to control the citrus red mite, Panonychus citri McGregor in this period in Saga Prefecture. The control effects of pyridaben co-sprayed with machine oil to the pink citrus rust mite was examined in 1997 and 1998. The efficiency of pyridaben co-sprayed with machine oil was tended to be declined. Moreover the initial deposition of the pyridaben co-sprayed with machine oil on the fruit was only 60% of pyridaben alone, and the pyridaben disappear on the fruit after about 30 days.
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