Found in Florida; not a fly but a wasp about one-eighth inch; a serious threat where present; the larvae feed within the plant tissue; no control given; illus. DK14+
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The Orchid Doctor
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Orchid Fly
Orchid Fly
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ORCHID FLY: Characteristics and Control
A tiny wasp; larvae feed inside flower buds, pseudobulbs or new shoots of cattleyas; once controlled by DDT; occasional infestations now reported. AH7