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Life History And Description Of Immature Stages Of Procecidochares Stonei Blanc & Foote On Viguiera Spp. In Southern California (Diptera: Tephritidae), John F. Green, David H. Headrick, Richard D. Goeden
Life History And Description Of Immature Stages Of Procecidochares Stonei Blanc & Foote On Viguiera Spp. In Southern California (Diptera: Tephritidae), John F. Green, David H. Headrick, Richard D. Goeden
Horticulture and Crop Science
Procecidochares stonei Blanc & Foote is a facultatively multivoltine, stenophagous, gall-forming fruit fly on Viguiera laciniata Gray and V. deltoidea Gray var. parishii (Greene) Vasey and Rose (Asteraceae) in southern California. The latter host record is new; other published host records are questioned. Eggs, first through third instar larvae, and puparia are described for the first time. Galls formed on both host plants are described. The severe drought in southern California during the last 5 years has reduced the densities of P. stonei on V. d. var. parishii. Fly reproduction was restricted to one generation per year on the few …
Life History And Descriptions Of Immature Stages Of Tephritis Baccharis (Coquillett) On Baccharis Salicifolia (Ruiz & Pavon) Persoon In Southern California (Diptera: Tephritidae), Richard D. Goeden, David H. Headrick
Life History And Descriptions Of Immature Stages Of Tephritis Baccharis (Coquillett) On Baccharis Salicifolia (Ruiz & Pavon) Persoon In Southern California (Diptera: Tephritidae), Richard D. Goeden, David H. Headrick
Horticulture and Crop Science
Tephritis baccharis (Coquillett) is bivoltine and monophagous on Baccharis salicifolia(Ruiz & Pavon) Persoon in southern California. The egg, the second and third instar larvae, and puparium are described and illustrated. Eggs are inserted singly into terminal buds of main and axillary branches in late winter or early spring. First instar larvae hatch and tunnel into the pith just basad to the apical bud where they initiate gall formation. Gall and larval growth continue slowly into the fall, when pupation occurs. Most F1 flies emerge, mate, and after about one week begin oviposition. Some F1 flies that emerge …