Diseases Common to Many Plants
UC agricultural management guidelines for control of floriculture pests. Special Weed Problems for Field-Grown Trees and Shrubs (7/00) Integrated Pest Management for Floriculture Foliar Fungicides (1/02) Management of Soilborne Pathogens ... [... more]
University of California IPM |
Armyworms and Cutworms
UC Management Guidelines for Armyworms and Cutworms on Floriculture and Ornamental Nurseries. Beet armyworm continually develops during winter in mild areas and builds up on weeds and in cotton, lettuce, and tomato fields. One generation can take ... [... more]
University of California IPM |
African Violet
Floriculture and Ornamental Nurseries Host-Pathogen Index. Erwinia chrysanthemi Aphelenchoides ritzemabosi Phytophthora parasitica Erysiphe cichoracearum Sphaerotheca fuliginea Pythium aphanidermatum Stem rot and leaf spot Alternaria ... [... more]
University of California IPM |
Gypsophila (Gypsophila paniculata)
Soft, light brown galls up to 2 inches (5 cm) in diameter develop at or below soil line. Galled plants are often stunted and some die. Bacteria survive in galls and in aerial parts of the plant. Infection is favored by warm conditions. Use ... [... more]
University of California IPM |
Cattleya (Cattleya spp.)
Soft, watery rot of leaves; often foul smelling. Starts as small water-soaked area. Infection is through wounds. Often fatal. In soil and decaying plant debris. Bacteria spread in water. Favored by warm, moist conditions. Avoid overhead watering, ... [... more]
University of California IPM |
Establishing Treatment Thresholds
UC Management Guidelines for Establishing Treatment Thresholds on Floriculture and Ornamental Nurseries. The presence of a few pest insect or mites and some amount of damage usually can be tolerated. The number of pests and level of damage beyond ... [... more]
University of California IPM |
Treatment for Field-grown Trees and Shrubs
Information about Treatment for Field-Grown Trees and Shrubs in Floriculture and Ornamental Nurseries. Even at rates of 4 lb a.i./acre (4.4 kg/ha), it sometimes has not completely controlled weeds in the Asteraceae (common groundsel, sowthistle, ... [... more]
University of California IPM |
Camellia (Camellia spp.)
Wilting and dying of branches. Leaves darken and often remain attached. Branch is girdled by fungus that enters through injuries, including leaf scars. Found in warmer areas of California. Favored by wet, warm conditions, weakened plants, and ... [... more]
University of California IPM |
Twospotted Spider Mites
UC Management Guidelines for Twospotted Spider Mites on Floriculture and Ornamental Nurseries. Twospotted spider mites are web-forming mites that pierce plant cells and remove their contents. All spider mites have two body segments and four pairs ... [... more]
University of California IPM |
Greenhouse-grown Crops (Inside Greenhouses)
Information about Greenhouse-Grown Crops (Inside Greenhousees) in Floriculture and Ornamental Nurseries. It is difficult to control weeds in greenhouses because greenhouse-grown plants are generally sensitive to herbicides and weeds are often ... [... more]
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Pathogens: Verticillium dahliae and V. albo-atrum
UC Management Guidelines for Verticillium Wilt on Floriculture and Ornamental Nurseries. Symptoms vary somewhat with the kind of plant and the environment, but some symptoms are common to most situations. The leaves may wilt and turn yellow, ... [... more]
University of California IPM |
Treatment for Container Nurseries
Information about Treatment For Container Nurseries in Floriculture and Ornamental Nurseries. Not all ornamentals will tolerate each herbicide. Check the label for species selectivity. Even when applied at rates of 4 lb (4.4 kg/ha) a.i./acre, ... [... more]
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