PROCEEDINGS OF THE

INTERNATIONAL SOCIETY OF

CITRICULTURE

1984

Volume

2

1984 INTERNATIONAL CITRUS CONGRESS ORGANIZING COMMUTE TIB/UB Hannover PRINTED 128 791 365

89

DISEASES AND THEIR CONTROL Variable Zinc Concentrations in Declinio Affected Citrus Trees. O.R. Paguio, Y. da S. Coelho and H.P. Santos Filho . . . . 302 Xylem Plugging and Mineral Status of Blight Affected Citrus Trees - A Review. L.G. Albrigo 303 Spectral Ratio of Infrared Image of Citrus Trees as Affected by Tree Size. G J . Edwards, C.A. Anderson and H.K. Wutscher 307 Leaf Water Stress and Water Uptake of Trunk Wood in Blight Affected Citrus Trees. J.P. Syvertsen and L.G. Albrigo 309 Diseases of Mexican Lime Citrus aurantifoBa (Christm) Swingle in Mexico. J.G. Garza-L. Agostini, H.U. Fischer and C Casafus 371 Perpetuation Attempt of Declinio of Citrus. Jose1 Eduardo O. de Lima, Luiz Augusto B.C. de Vasconcellos, Ruter Hiroce and Antonio S. Borducchi 374 Sharpshooter Populations in Blight-Affected Florida Citrus Groves. R.F. Lee, L.W. Timmer, J.C Allen and D.P.H. Tucker . . 376 Relationship Between the Amount of Inoculum and the Infection Caused by Xanthomonas campestris pv. citri on Citrus Seedlings Through Natural Infections in the Field. H.M. Zubrzycki and A. Diamante de Zubrzycki 379 Epidemiological Observations on Xanthomonas campestris pv. (Hasse) Dye, in Relation to Different Citrus Species and Varieties. Deniza A., Palazzo, V.A. Malavolta Jr., E.M. Nogueira, Maria Ligia V. Carvalho and Victoria Rossetti 382 Evaluation of Citrus Cultivars for Resistance to Canker Caused by Xanthomonas campestris pv. citri (Hasse) Dye in the State of Parana', Brazil. RJ>. Leite Jr. and S.K. Mohan 385 Association of Pseudomonas syringae pv. syringae With Citrus Canker in Argentina R.E. Stall, G.M. Marco and B.I.Canteros 389 Efficiency of Desinfestant Compounds to Exclude the Citrus Canker Organism From Fruit Collecting Boxes. Erna E. Bach, M. Ligia V. Carvalho, J. Rodrigues Neto, V.A. Malavolta Jr. and Victoria Rossetti 391 The Effect of Trunk Injections on Blight-Affected Citrus Trees. H JC. Wutscher 394 Some Phytotoxic Effects of Naphthoquinones Produced by Furasium solani From Fibrous Roots of Blight-Diseased Citrus. R.E. Berry, R.A. Baker and J.H. Tatum 396 Features of Shallow Soils With Clay Pans That Are Conductive to Citrus Blight. S. Nemec, D. Calvert, L.H. Allen and F. Fiskell 398 Brazilian Citrus Decline Situation in the Early 80'S in the State of Sao Paulo, Brazil. Helofca S. Prates, N. Guirado and G.W. Muller 401 Use of a Simple Device to Test the Specificity of the Water-Injection Test for Declinio of Citrus. Jose' Eduardo O. de Lima, Luiz Augusto B.C. de Vasconcellos, N. Guirado, J. Pompeu Jr. 402/403 Relative Titers of Florida Citrus Tristeza Virus Isolates in Sweet Orange and Etrog Citron. RJF. Lee and J J \ Agostini 404

Symptomatology of the Disease Known as Psorosis a in the Citrus Area of Corrientes, Argentina. Alicia Diamante de Zubrzycki and H.M. Zubrzycki 407 Status of Citrus Plantings on the Ninth Year Under Study for Control Procedures of Greening Disease in the Philippines. C.I. Gonzales, A.D. Toreja and U.V. Molino 409 Application Methods and Fungicides for the Control of Brown Rot (Phytophthora citrophthora) of Citrus Fruit. Zvi Solel 412 Effect of Some Fungicides on Population of Citrus Phytophthoras in Soil. G. Magnano Di San Lio, A.M. Pennisi and G. Perrotta . . . 415 Timing Foliar Sprays of Fosetyl al to Control Phytophthora Gummosis in Lemon Trees. J.D. Mateus and T. Nishida 419 Foliar Spray Use of the Fungicide Fosetyl al on Citrus to Promote Yield Increase. J.D. Mateus and T. Nishida 420 Citrus Virus and Mycoplasma Diseases in India - Past, Present and Future. T.K. Nariani 421 Citrus Cachexia-Xyloporosis Virus in the Caspian Sea Area of Iran. Mohammad Habashi 424 Occurrence and Distribution of Tatter-Leaf Citrange Stunt Complex on Taiwanese Citrus. Su Hong-Ji and Cheon Jeon-Uk 426 Behaviour of Some Lemon Rootstock Towards Mai Secco Root Infections: Preliminary Results. V. de Cicco, M. Paradies and M. Salerno 428 Relationships Between the Occurrence of Chytophthora sp. Root Rots in Young Nucellar Citrus Trees and Inoculation With a Viral Complex Containing the Exocortis Viroid. A. Snaked, S. Ashkenazy and Y. Oren 430 Ceratocystis Fimbriata - EISs and Halst, a New Lemon Tree Pathogen. Jesus Contreras de Alcain an L.A. Marmelicz 432 Spread and Effects of Citrus Tristeza Virus in Venezuela. R. Mendt, R. Boscan, L. Sabogal, G. Perez and G. Plaza, R. Lastra 435 Response of Orange Trees on Two Rootstocks With Different Citrus Blight Susceptibility to Variation of Anions in the Nutrient Solution. H.K. Wutscher 437 Epidemiology of the Greening Disease in Reunion Island Before and After the Biological Control of the African and Asian Citrus Psyllas. B. Aubert, A. Sabine, P. Geslin and L. Picard 440 Diseases of Citrus in India. S.P. Rauchaudhuri and Y.S. Ahlawat 442 Exocortis Infection of Different Citrus Cultivars in China. Zhao Xueyan,JianYuanhui,SuWeifang and QiuZhushi . . 445 PESTS AND THEIR CONTROL R.A. Dybas, J.M. Undurraga and C W . McCoy 449 Pest Suppresion on Florida Citrus With Aldicarb. R.C Bullock 452 Management Strategies for Phyttocoptruta oleivora Ashm. and Their Effects on Other Phytophagous Species and Natural Enemies. D. Trevizoli and S. Gravena 455 Injury Levels for the Citrus Rust Mite Phylhcoptruta oleivora (Ashm.). S. Gravena and D. Trevizoli 457 Population Dynamics of the Citrus Red Mite Panonychus citri (McG.) and its Predators in Spanish Citrus Orchards. F. Garcfa-Marf, F. Ferragut, J. Costa-Comelles and C. Marzal 459 Pathogens of the Citrus Root Weevil Complex and the Potential Use of Beaveria bassiana As Microbial Control Agent in Florida. C W . McCoy, R.C. Bullock, G.G. Soares, C A . Tarrant and G.M. Beavers 462 Bromopropylate Residues in Valencia Orange Peel and Pulp Determined by Gas Chromatography. M.A. Pizano, G.C de Batista, P.H. Dorizzotto and L.R. Boscariol 466 Carbophenothion and Phentoathe Residues in Hamlin Orange Peel and Pulp Determined by Gas Chromatography. J.L.G. de Camargo, G.C. de Batista and J. Pompeu Jr. . . . 467 Persistence of Phenamiphos in the Soil and its Accumulation in Orange Fruits. M. Basile, V.A. Melillo, F. Lamberti and V. Lo Giudice . . 469 Residues of Phenamiphos in Orange Fruits from Treated Groves. M. Basile, V.A. Melillo, F. Lamberti and V. Lo Giudice . . 471 Establishment of Citrus Red Mite, Panonychus citri (Me Gregor), As a Major Pest of Texas Citrus. J.V. Frenchi 472 Pesticide Residue Trials in Citrus Fruit for Establishing MRL. E. Celma and E. Santaballa 476 Aerial Application at Low Volumes in Citrus for Mite Control. Jose Maria Femandes dos Santos 482

More and Better Fruit While Saving $300 per Hectare With IPM. A.C. Hardison New Methods of Snail Control in Southern California. Nicholas J. Sakovich

484 486

HARVEST AND POSTHARVEST Interactions Between Decay Control Distribution and Persistence of Imazalil in Shamouti Orange Individually Seal-Packaged in Plastic Films. S. Ben-Yehoshua, B. Shapiro, Y. Gutter, Irina Gero and E. Barak 488 Decay in Lemons Individually Wrapped in Plastic Film. Joseph W.Ecker.JamesR.Sievert and Malinie Ratnayake . . 492 Waxing of Spanish Citrus Fruit. J. Cuquerella and J.M. Martfnez-JaVega 494 Studies on Storage of Kinnow Mandarin. Kushal Singh and S.S. Mann 496 Decay Problems of Imported Citrus Fruits in Japan. H. Kitagawa and K. Kawada 500 Test With Guazatine and Imazalil for Postharvest Control of PenicUSum digitatum on Orages and Lemons. F J . Perez-Ziiniga and L. Munoz-Delgado 503 Control of Peniciltium Rot on Peeled Citrus Fruit by Gamma Radiation and Plastic Wrappers. Rivka Barkai-Golan, Rachel Karadavid and R. Padova . . . 506 Post-Harvest Citrus Diseases in Spain: Problems and Solutions. J J . Tuset 508 Factors Affecting Cold Storage of Spanish Oranges and Mandarines. J.M. Martinez-JaVega and J. Cuquerella 511 Degreening of 'Navel' and Tomango' Oranges With Ethrel. I.M.Gilfillan,J.A.Stevenson,J.E.Saunt and D.A.Stanton . 514 Maturation and Quality of 'Pera' Sweet Orange in Brazil. Y.S. Coelho; J. Pompeu Jr.; J.B. Bastos; C.M.M. Dornelles; E.S. Souza and R.CCaldas 517 Evaluation of the Internal Chemical Quality of Citrus Fruits. DJ.P. Nogueira 520 Ripening Process of two Orange Cultivars: Washington Navel and Navelina. G. Russo 523 Fairs: A Computerized Information Retrieval System for Citrus Production. W. Howard Beck, J.L. Knapp, T.R. Fasulo, D.P.H. Tucker and F.A. Johnson 528 Research on Energy Consumption in Citrus Packing-Houses in Sicily. G. Blandini and A. Failla 530 Analysis of Manual and Machine Grading Operations in California Lemon Packing-Houses. H J . Kaplan, S.D. Scopatz and W.M. Miller 532 Improved Process Management Through Automated Juice Room Control. Kenneth Fox 537 Recent Studies in Control of Quality Factors for Citrus Products and by Products. R.E. Berry, P.E. Shaw, C W . Wilson and M.G. MoshonasIII 541 Quantitation of Limonin Using Competitive Enzyme Linked Immunoassay. E.C. Hill, R.L.Rouseff and D.G.Oliver 545 Citrus Abscission Activity of Synthetic Organosulfur Compounds. Merrill Wilcox, J.P. Weidner, Y.Y. Li 548 The Pendulum Concept and Organoleptic Evaluations. E. Rabe, L.C. Holtzhausen and B J . Grobler 550 Fibre Strength in Oranges Part II. Influencing Factors. E. Rabe and L.C. Holtzhausen 555 Reduction of Acidity in Satsuma Mandarin (Citrus unshiu Marc.) Juice With Ion-Exchange Resins. H. Kitagawa, S. Kamei, K. Kawada and T. Tarutani . . . . 566 The Status of Citrus Production in the Caribbean Basin. L.G. Albrigo and U. Menini 570 The Uruguayan Citrus Industry. M. Betancur, H. Campiglia, J.P. Furest, J. Mangado, M. Ocafio, E. Supino 573 The Australian Citrus Industry. P.T. Gallasch, J.B. Forsythand H.Cope 577 Cost and Forfeit Analysis of the Commercialization of Citrus Fruits in the Provinces of Castellon, Valencia and Alicante. V. Caballero Mellado, J.F. Julia Igual y B. Segura Garcia Del Rfo 581 Citriculture: A Viable Alternative for the Brazilian 'Cerrados'. P J . d e C Genii and A.C. deQ. Pinto 584 Report of an Imazalil Resistant Strain of PenicilUum digitatum (Sacc) in Citrus in Uruguay. L.H. Rebellato and M.C Monteiro 588

Proc. Int. Soc. Citriculture, 1984, Vol. 1.