甘藷簇葉病病田採得的或家內飼養之南斑葉蟬(Orosius orientalis Matsumura)進行甘藷簇葉病媒介傳播試驗結果,供試1,225株甘藷實生苗中,有100株被感染罹病並形成典型叢生病徵,此項結果顯示甘藷的南斑葉蟬可媒介傳播臺灣的甘藷簇葉病。
Insect transmission tests of sweet potato witches' broom by Orosius orientalis Matsumura collected from disease-infected sweet potato fields or art were conducted. Infectation of the disease agent was observed on sweet potato plants fed by the viruliferous vector Orosius orientalis. Of 1,225 sweet potato seedlings tested, 100 plants were infected and the affected seedlings developed typical witches'-broom symptoms. The results confirmed that the agent causing sweet potato witches' broom could be transmitted by Orosius orientalis in Taiwan.