共 4 条
[1]
CHITTENDEN FH, 1901, B N S DIV ENT USDA, V29, P13
[2]
DAVIS JJ, 1918, CANADIAN ENT, V50, P187
[3]
Hinds W. E., 1915, Agric Exp Sta Alabama Auburn Bull, VNo. 186
[4]
MACKIE D. B., 1920, Mthly. Bull. Cal. State Dept. Aqric., Sacramento., V9, P194