Q.Pest Control
Is permethrin an effective agent against spider mites on boxwoods?
Downtoearthdigs
Answered on May 29, 2019
No. Permethrin is not appropriate for spider mite control. For chemical control you would need a different class of pesticide, with properties called acaricide or miticide.
This article on boxwood spider mites offers some suggestions or biological control. And it also has a link to information on miticides.
https://www.gardeningknowhow.com/ornamental/shrubs/boxwood/boxwood-spider-mites.htm
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