caa a22 4500 388092998 CHVBK 20180307125256.0 cr unu---uuuuu 161130e199902 xx s 000 0 eng 10.4039/Ent131115-1 doi S0008347X00009743 pii (NATIONALLICENCE)cambridge-10.4039/Ent131115-1 REARING DELPHASTUS CATALINAE (COLEOPTERA: COCCINELLIDAE): PRACTICAL EXPERIENCE AND A MODELING ANALYSIS [Elektronische Daten] Delphastus catalinae (Horn) (Coleoptera: Coccinellidae) was mass reared to support field studies addressing augmentation and colonization for control of Bemisia argentifolii Bellows and Perring (Homoptera: Aleyrodidae) in southern California. Beetles were reared on B. argentifolii infested poinsettia plants grown inside greenhouses located in northern California. Potted plants, reared from rooted cuttings, were cycled through the rearing system over ca. a 12-week period, then discarded. A total of 174 245 adult beetles were harvested over a 20-week period. Each plant averaged 46 adult beetles (range 21-89) over the same period of time. Harvesting strategies were investigated using a computer simulation model based upon published and hypothesized reproduction and survivorship parameters. Results suggest that removal of approximately 50% of adults per week produced a stable and maximum production of beetles. Actual harvest rates were between 40 and 60% of available beetles. The cost of producing each adult was estimated at US$0.22, with the major cost being labor at 86% of the total. Copyright © Entomological Society of Canada 1999 Pickett C.H. Biological Control Program, California Department of Food & Agriculture, 3288 Meadowview Road, Sacramento, California, USA 95832 Casanave K.A. Biological Control Program, California Department of Food & Agriculture, 3288 Meadowview Road, Sacramento, California, USA 95832 Schoenig S.E. Biological Control Program, California Department of Food & Agriculture, 3288 Meadowview Road, Sacramento, California, USA 95832 Heinz K.M. Biological Control Program, California Department of Food & Agriculture, 3288 Meadowview Road, Sacramento, California, USA 95832 The Canadian Entomologist Cambridge University Press 131/1(1999-02), 115-129 0008-347X 131:1<115 1999 131 TCE https://doi.org/10.4039/Ent131115-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.4039/Ent131115-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pickett C.H. Biological Control Program, California Department of Food & Agriculture, 3288 Meadowview Road, Sacramento, California, USA 95832 NATIONALLICENCE 700 1- Casanave K.A. Biological Control Program, California Department of Food & Agriculture, 3288 Meadowview Road, Sacramento, California, USA 95832 NATIONALLICENCE 700 1- Schoenig S.E. Biological Control Program, California Department of Food & Agriculture, 3288 Meadowview Road, Sacramento, California, USA 95832 NATIONALLICENCE 700 1- Heinz K.M. Biological Control Program, California Department of Food & Agriculture, 3288 Meadowview Road, Sacramento, California, USA 95832 NATIONALLICENCE 773 0- The Canadian Entomologist Cambridge University Press 131/1(1999-02), 115-129 0008-347X 131:1<115 1999 131 TCE CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge