Madsen, H.F., & Morgan, C.V.G. 1970 Pome fruit pests and their control.. Annual Review of Entomology 15: 295-320.
Notes: Scale insects discussed include Aspidiotus perniciosus, and Lepidosaphes ulmi.
Madsen, H.F., & Morgan, C.V.G. 1970 Pome fruit pests and their control.. Annual Review of Entomology 15: 295-320.
Notes: Scale insects discussed include Aspidiotus perniciosus, and Lepidosaphes ulmi.