Biological control sought for ash whitefly

• Published in: California agriculture (Berkeley, Calif.) Vol. 44; no. 1; pp. 4 - 6
• Main Authors: Bellows, T.S, Paine, T.D, Arakawa, K.Y, Meisenbacher, C, Leddy, P, Kabashima, J
• Format: Journal Article
• Language: English
• Published: Berkeley, CA University of California, Division of Agriculture and Natural Resources 01.01.1990; University of California Agriculture and Natural Resources
• Subjects: ALEURODE; Aleyrodidae; ARBOLES FRUTALES; ARBOLES ORNAMENTALES; ARBRE D'ORNEMENT; ARBRE FRUITIER; AUXILIAIRE DE LUTTE BIOLOGIQUE; BIOLOGIA; Biological and medical sciences; Biological control; BIOLOGICAL CONTROL ORGANISMS; BIOLOGIE; BIOLOGY; CALIFORNIA; CALIFORNIE; Control; CONTROL DE INSECTOS; CROP LOSSES; DISTRIBUCION NATURAL; DISTRIBUTION NATURELLE; ENEMIGOS NATURALES; ENNEMI NATUREL; FRAXINUS; FRUIT TREES; Fundamental and applied biological sciences. Psychology; HEMIPTERA; Homoptera; HOSPEDEROS; HOSTS; HOTE; INSECT CONTROL; INSECTE NUISIBLE; INSECTOS DANINOS; LUTTE ANTI-INSECTE; MOSCAS BLANCAS; NATURAL DISTRIBUTION; NATURAL ENEMIES; ORGANISMOS PARA CONTROL BIOLOGICO; ORNAMENTAL TREES; PERDIDAS DE LA COSECHA; PERTE DE RECOLTE; PEST INSECTS; Phytopathology. Animal pests. Plant and forest protection; Protozoa. Invertebrates; SINTOMAS; siphoninus phillyreae; SYMPTOME; SYMPTOMS; WHITE FLIES; USA, California; Coleoptera; United States; Insecta; Biological control; Aphelinidae; Parasite; Ornamental crop; California; North America; Coccinellidae; Pest; Homoptera; Entomophagous; Fruit crop; Arthropoda; Chalcidoidea; America; Aleyrodidae; Encarsia; Predator; Hymenoptera; Invertebrata; Damage
• ISSN: 0008-0845; 2160-8091
• DOI: 10.3733/ca.v044n01p4

Ash whitefly has spread over a large portion of California since the initial infestation was discovered in Los Angeles County in 1988. Populations have grown to high densities on a wide range of host plants, including ash, pear, apple, citrus, and other landscape and fruit trees. The best hope for control appears to be natural enemies: a parasitic wasp and a predatory beetle have been introduced and are being evaluated.