7STALL R E, SEYMOUR C P. Canker: a threat to citrus in the Gulf Coast states[J]. Plant Dis, 1983, 67:581 - 585.
8KOIZUMI M, KUHARA S. Evaluation of citrus plants for resistance to bacterial canker disease in relation to lesion extension[J]. Bull Tree Fruit Res D, 1982,4:73 - 92.
9GOTTWALD T R, GRAHAM J H, SCHUBERT T S. Citrus canker in urban Miami: An analysis of spread and prognosis for the future[J]. Citrus Industry, 1997, 78:72- 78.