umthwalo weshishini esihlaza
Ukukhupha kwezinyoka yesiliva kuyisinqumo esisha ekugcineni kwezimali zokulima izilima. Lolu hlelo olusha lusebenza ngokuthumela amathuba amathathu ahlanzekileyo ngesandla ngemva yemini, akhula umphambano owavuma ukungafiki kwizinyoka emkhawulweni waphakade. Ngamandla okususa kweziliva kuphela, leli gumba linamabhethere enzima enokulahlwa engaqhubi phansi nakanyekeni. Inkuni yaleli gumba enezimbotshana ne-aluminum ibonakala njengoko ihlala yonke imini, futhi isebenza kakade kuzintanga zonke. Isisekelo sika sonic sokuthutha kusenhlalweni kwezinyoka kusihluphe isikhumba sakho, kubiza impendulo yokuthanda ukuthintana ngaphandle kokudatha. Umfanekiso waleli gumba ungaba ngu 7000-8000 isikhwama feet, kuyidinga ukulima kwezwe, izindlu, izigaba, nezindlu zokuthengisa. Ukusebenza okungadingi ukulunga nokugcina kwezinkathi zomnyaka wonke kusivikela ngaphandle kokudinga ukuthinta. Futhi, isakhiwo esihle sika repeller sibambisana nesimo sezulu, sikhupha ukuthi kuhlale kakhulu njengoko kuhlala kakhulu kwezimali zokulima ezijwayelekile.