caa a22 4500 465725570 CHVBK 20180323111728.0 cr unu---uuuuu 170327e19901201xx s 000 0 eng 10.1071/APP9900127 doi (NATIONALLICENCE)springer-10.1071/APP9900127 The control of black pod, canker and seedling blight of cocoa, caused by Phytophthora palmivora , with potassium phosphonate [Elektronische Daten] [R. Anderson, D. Guest] Trunk injected potassium phosphonate (8 or 16 g a.i. per tree every 6 months) controls black pod and stem canker of cocoa: Foliar sprays of potassium phosphonate (20 g a.i. per tree every 6 months) or Ridomil Plus 72WP (0.72 g a.i. per tree every 6 weeks during the wet season) do not control black pod. Trunk injection is less weather dependent than foliar sprays, and is a more effective application method for mature trees in the cocoa growing areas of Papua New Guinea. Single Ridomil Plus 72WP (0.8%) or potassium phosphonate (4%) sprays control artificially inoculated seedling blight more effectively than either a lower rate of potassium phosphonate (0.5%) spray or a soil drench of potassium phosphonate (1%). Australasian Plant Pathology Society, 1990 Anderson R. Cocoa Black Pod Research Trust of Papua New Guinea, P.O. Box 711, Madang, Papua New Guinea aut Guest D. School of Botany, University of Melbourne, 3052, Parkville, Victoria aut Australasian Plant Pathology Springer Netherlands 19/4(1990-12-01), 127-129 0815-3191 19:4<127 1990 19 13313 https://doi.org/10.1071/APP9900127 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1071/APP9900127 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Anderson R. Cocoa Black Pod Research Trust of Papua New Guinea, P.O. Box 711, Madang, Papua New Guinea aut NATIONALLICENCE 700 1- Guest D. School of Botany, University of Melbourne, 3052, Parkville, Victoria aut NATIONALLICENCE 773 0- Australasian Plant Pathology Springer Netherlands 19/4(1990-12-01), 127-129 0815-3191 19:4<127 1990 19 13313 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer