Heller, P.R. 1977 Oak Kermes scale. Ornamentals and Turf (Cooperative Extension Service, Pennsylvania State University) March, 1977: 2 pp.
Notes: Damage caused; plant host is oaks; life history; chemical control recommendations.
Heller, P.R. 1977 Oak Kermes scale. Ornamentals and Turf (Cooperative Extension Service, Pennsylvania State University) March, 1977: 2 pp.
Notes: Damage caused; plant host is oaks; life history; chemical control recommendations.