BIOLOGY AND CONTROL OF ASTEROLECANIUM SCALES ON OAKS IN CALIFORNIA

[1] ESSIG E. O., 1913, Monthly Bulletin. California Commission of Horticulture, V2, P705

[2] ESSIG EO, 1944, 87 CAL AGR EXT CIRC

[3] FELT EP, 1932, INSECTS DISEASES ORN

[4] FLINT WP, 1940, 509 AGR EXPT STA CIR, P1

[5] HOUSER JS, 1918, OHIO AGR EXP STN B, V332, P161

[6] MCDANIEL EI, 1930, MICH STATE COLLEGE A, V133, P1

[7] PARR T, 1940, YALE U SCH FORESTRY, V47, P1

[8] RUSSELL LM, 1941, USDA MISC PUBL, V424

[1] ESSIG E. O., 1913, Monthly Bulletin. California Commission of Horticulture, V2, P705

[2] ESSIG EO, 1944, 87 CAL AGR EXT CIRC

[3] FELT EP, 1932, INSECTS DISEASES ORN

[4] FLINT WP, 1940, 509 AGR EXPT STA CIR, P1

[5] HOUSER JS, 1918, OHIO AGR EXP STN B, V332, P161

[6] MCDANIEL EI, 1930, MICH STATE COLLEGE A, V133, P1

[7] PARR T, 1940, YALE U SCH FORESTRY, V47, P1

[8] RUSSELL LM, 1941, USDA MISC PUBL, V424