|Title:||Spider-mite problems and control in Taiwan||Authors:||Chyi-Chen Ho||Keywords:||biological control;natural control;acaricide;Tetranychus kanzawai;population increase||Issue Date:||2000||Publisher:||Springer||Journal Volume:||24||Journal Issue:||5-6||Start page/Pages:||453-462||Source:||Experimental & Applied Acarology||Abstract:||
Problems with spider mites first appeared in Taiwan in 1958, eight years after the
importation of synthetic pesticides, and the mites evolved into major pests on many crops
during the 1980s. Of the 74 spider mite species recorded from Taiwan 10 are major pests,
with Tetranychus kanzawai most important, followed by T. urticae, Panonychus citri, T. cinnabarinus,
T. truncatus and Oligonychus litchii.Most crops suffer from more than one species.
Spider mites reproduce year-round in Taiwan. Diapause occurs only in high-elevation areas.
Precipitation is the most important abiotic factor restricting spider-mite populations. Control
is usually accomplished by applying chemicals. Fifty acaricides are currently registered for
the control of spider mites. Acaricide resistance is a serious problem, with regional variation
in resistance levels. Several phytoseiid mites and a chrysopid predator have been studied for
control of spider mites with good effect. Efforts to market these predators should be intensified
so that biological control can be a real choice for farmers.
|Appears in Collections:||SCI期刊|
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