#agriculturalpests #cropinfestation #potatofarming #integratedpestmanagement #foodsecurity.
I-Ernobius mollis, evame ukubizwa ngokuthi i-potato stalk weevil, iyisilokazana esithinta ukukhula kanye nesivuno sezitshalo zamazambane. Leli bhungane elincane linombala onsundu ngokumpunga futhi lingakhula libe ngu-3mm ubude. Izibungu zayo zidla iziqu zezitshalo zamazambane, zibangele ukuthi zibune futhi ekugcineni zife. Lesi sihloko sizohlinzeka ngemininingwane ye-weevil yesiqu samazambane, ukukhula kwayo, kanye nemiphumela yokuhlaselwa kwayo kwezolimo.
Isikhova sesiqu samazambane sishintsha ngokuphelele, siqala njengeqanda, siqhubekele esigabeni sobungu, futhi sigcine sesiyibhungane elikhulile. I-weevil endala iphuma emhlabathini ekuqaleni kwentwasahlobo futhi idla amaqabunga neziqu zesitshalo samazambane. Ngemva kokukhwelana, i-weevil yensikazi izalela amaqanda ayo esiqwini sesitshalo samazambane, futhi izibungu zichanyuselwa kulawa maqanda bese zimba esiqwini, lapho zidla futhi zikhule khona.
Ukuhlasela kwezibungu zeziqu zamazambane kungaholela ekuncipheni okukhulu kwesivuno samazambane, njengoba izibungu zingabangela ukuphuka kweziqu kanye nesitshalo sibune. Ngaphezu kwalokho, ama-wewevils angasakaza izifo ezibangelwa amagciwane, aphinde abe nomthelela empilweni nasekukhiqizeni izitshalo zamazambane. Umonakalo odalwe yizintwala zamazambane zingathinta nezinga lezitshalo zamazambane, kuzenze zingakufanelekeli ukudliwa noma ukudayiswa.
Ukuze kunqandwe ukutheleka kokhula lwesiqu samazambane, abalimi bangasebenzisa inhlanganisela yezindlela zamasiko, amakhemikhali nezindlela zokulawula izinto eziphilayo. Izindlela zamasiko zihlanganisa ukushintshanisa izitshalo kanye nokususwa kwemfucumfucu yezitshalo ngemva kokuvuna, kuyilapho ukulawulwa kwamakhemikhali kubandakanya ukusetshenziswa kwezibulala-zinambuzane. Izindlela zokulawula izinto eziphilayo zihlanganisa ukusetshenziswa kwezilwane ezizingelayo kanye nama-parasitoid ukuze ziqondise izibungu namaqanda e-weevil.
Sengiphetha, i-weevil yesiqu samazambane iyinkathazo enkulu engabangela umonakalo omkhulu ezitshalweni zamazambane, okuholela ekunciphiseni kwesivuno kanye nekhwalithi. Abalimi nabacwaningi kumele baqhubeke nokuthuthukisa kanye nokwenza ngcono izindlela zokulawula ukugasela kwalesi zinambuzane ukuze kuvikelwe izitshalo zamazambane kanye nokuqinisekisa ukutholakala kokudla.