Journals
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Item The chemical control of shot-hole borer (Xyleborus fonicatus Eichh.) on tea(Tea Research Institute. Thalawakele, 1961) Cranham, J.E.Item The natural balance of pests and parasites on Ceylon tea, especially tea Tortrix and Macrocentrus(Tea Research Institute. Thalawakele, 1961) Cranham, J.E.Item An alternative to DDT for tortrix control. Dipterex(Tea Research Institute. Thalawakele, 1962) Cranham, J.E.; Ranaweera, J.W.; Rajapakse, G.B.