In an example embodiment of the disclosed technology, a plant disinfection apparatus is provided that may comprise a support device configured to directly or indirectly support one or more UVC probes beneath the support device. The one or more UVC probes may each comprise a relatively elongated shape comprising a major axis Y, a light source that emits UVC light in a predominantly perpendicular distribution pattern relative to axis Y, and a suspension device configured to directly or indirectly attach to the support device. The UVC probe may be configured to be raised and lowered in a relatively vertical orientation and may further comprise a means of conveying power to the UVC light source. The one or more UVC probes may be configured to be lowered into the foliage of one or more plants disposed beneath the plant disinfection apparatus.