Blank, R.H., & Olson, M.H. 1989a Toxicity of lime sulphur to armoured scale.. Proceedings of the Forty Second New Zealand Weed and Pest Control Conference. Palmerston North, New Zealand (Fruit Crops II) : 187-190.

Notes: Abstract: Laboratory dipping technique showed that lime sulphur at the label rate was toxic to immature stages of greedy scale (Hemiberlesia rapax) but only moderately toxic to mature scale; comparisons showed that diazinon was 16 times more toxic to scale than lime sulphur at label rates.