The exploitation of this natural fertilizer is a function of colony size and accessibility of the cave; some sites occur throughout the year and are operated in a quasi industrial employing several dozen people (the caves a Tadarida plicata Ratchaburi is a case in Thailand).
Haya chitinases kutoa guano wadudu na nematicidal asili maslahi kwa wakulima. matumizi ya mbolea hii ya asili ni kazi ya koloni la kawaida na upatikanaji wa pango; baadhi ya maeneo ya kutokea kwa mwaka mzima na ni kazi katika viwanda nusu kuajiri watu kadhaa (la grotte à Tadarida plicata Ratchaburi ni kesi nchini Thailand).