TY - JOUR T1 - Phytophthora fruit and heart rots of coconut in Hawaii JF - Plant disease Y1 - 1992 A1 - Uchida, JY A1 - Aragaki, M. A1 - Ooka, J. A1 - Nagata, NM AB -

Serious fruit and heart rots of coconut were found on the major Hawaiian islands of Kauai, Oahu, Hawaii and Maui. Early symptoms included dark fruit rots and the premature loss of young nuts. A Phytophthora sp. was consistently associated with fruit rots. There was a high association of fruit rots and subsequent heart rot followed by tree death. Fruit and heart rots were reproduced by inoculations. The causal organism resembled P. katsurae, but its identification remains undetermined.

PB - American Phytopathological Society VL - 76 UR - http://www.apsnet.org/publications/PlantDisease/BackIssues/Documents/1992Abstracts/PD_76_925.htm ER - TY - JOUR T1 - Phytophthora disease of chestnut JF - Plant Prot. Y1 - 1967 A1 - Uchida, K. VL - 21 ER - TY - JOUR T1 - Phytophthora katsurae JF - Crop Knowledge Master Y1 - 2006 A1 - Uchida, JY PB - Extension Entomology & UH-CTAHR Integrated Pest Management Program, University of Hawaii CY - Manoa, Hi UR - http://www.extento.hawaii.edu/Kbase/crop/Type/p_katsu.htm ER - TY - JOUR T1 - Studies on the trunk rot of Japanese chestnut trees caused by Phytophthora castaneae JF - Bulletin of the Ibaraki-ken Horticultural Experiment Station Y1 - 1976 A1 - Uchida, K. AB -

Since its discovery in 1962 this disease of Castanea crenata has spread throughout the chestnut growing area and causes particularly severe damage in young orchards with bare ground between the trees. The fungus attacks trunks, branches, shoots and exposed roots, producing symptoms of black sap exudation from bark lesions which enlarge to girdle the trunk. A P. sp. isolated from lesion margins and described as P. castaneae [RPP 57, 2024] was shown to be pathogenic to chestnut and oak, and to rot inoculated apple and Japanese pear fruits. The opt. temp. for mycelial growth was 27 deg and for oospore production 20-30 deg C. The pathogen survives as oospores in infested soil and was isolated using young chestnut shoots as bait. The population density of P. castaneae in orchard soils was not correlated with disease severity. Every cv. of C. crenata tested was susceptible and also the European chestnut (C. sativa), but Chinese chestnut (C. mollissima) and American chestnut (C. dentata) were resistant. The disease was controlled by grassing infested orchards and damage was reduced by grass mulches. Sprays of Difolatan [captafol] or Bordeaux on the trunks from early May to early June were effective, especially when combined with insecticide sprays. Fungicide applications to the soil or to the trunks after early June were ineffective.

VL - Special Issue 3 UR - http://www.cabdirect.org/abstracts/19791352311.html ER - TY - JOUR T1 - Predictability begets optimism: A conservation perspective on Port-Orford-cedar and Phytophthora lateralis JF - PLANT DISEASE Y1 - 2000 A1 - B. Ullian A1 - E.S. Jules VL - 84 ER - TY - Generic T1 - New pest response guidelines - Phytophthora species in the environment and nursery settings Y1 - 2010 A1 - USDA-APHIS-PPD PB - USDA–APHIS–PPQ–Emergency and Domestic Programs–Emergency Management, Riverdale, Maryland UR - http://www.aphis.usda.gov/import_export/plants/manuals/emergency/downloads/nprg-genericphytophthoras.pdf U1 -

U.S. Department of Agriculture, Animal and Plant Health Inspection Services (APHIS)

ER - TY - JOUR T1 - Final supplemental environmental impact statement management of Port-Orford-cedar in southwest Oregon Y1 - 2004 A1 - USDA-FS A1 - USDI-BLM KW - Chamaecyparis lawsoniana KW - disease detection KW - Phytophthora lateralis PB - U.S. Department of Agriculture - Forest Service, U.S. Department of the Interior - Bureau of Land Management CY - Portland, OR UR - http://www.fs.fed.us/r6/rogue-siskiyou/projects/foresthealth/poc-seis.shtml ER - TY - JOUR T1 - Record of decision and land and resource management plan amendment for management of Port-Orford-cedar in southwest Oregon, Siskiyou National Forest Y1 - 2004 A1 - USDA-FS A1 - USDI-BLM KW - Chamaecyparis lawsoniana KW - disease detection KW - Phytophthora lateralis PB - U.S. Department of Agriculture Forest Service, Rogue River-Siskiyou National Forest CY - Medford, OR UR - http://www.fs.fed.us/r6/rogue-siskiyou/projects/foresthealth/poc/poc-rod-fs.pdf ER -