Steven, D., Blank, R.H., & Tomkins, A.R. 1991 Monitoring scale to reduce sprays in kiwifruit.. New Zealand Agric. Sci. 26: 84.
Notes: Abstract: Brief description of monitoring system to measure the percentage of leaves in a sample infested mainly with greedy scale (Hemiberlesia rapax) or latania scale (H. lataniae), and a spray is subsequently applied if the predetermined threshold level is exceeded.