AGRIS record

Record number MX9700171
Titles [Comparative study of the biology and development of Hippodamia convergens and Hippodamia koebelei (Coleoptera:Coccinellidae)]
Personal Authors Tenorio Vallejo, Maria Concepcion; Carrillo Sanchez, Jose Luis; Romero Napoles, Jesus; Bravo Mojica, Hiram
Publication Date (1990)
AGRIS Subj. Cat. Pests of plants
AGROVOC Terms HIPPODAMIA, CHALEUR, PERFORMANCE DE REPRODUCTION, BIOLOGIE
Other subjects COCCINELLIDAE, COLEOPTERA, INSECTA, PERFORMANCE ANIMAL, TEMPERATURE
Language Es
Notes Sumarios (En, Es)
Abstract The life cycle of H. koebelei at temperatures of 20, 25, 29 and 32 deg C and photoperiod of 12 hours, was longer in its different biological phases than that of H. convergens. The threshold temperatures obtained at the four studied temperatures, were higher for H. convergens and varied form 9.1 deg C to 15 deg C; for H. koebelei threshold temperatures were lower with a variation from 2.4 deg C to 13.7 deg C. Degree-days were lower for the lady bird beetle convergens than for the other species. Physiological time for the different biological phases of the two species of Hippodamia, obtained from the threshold temperature of the female, were higher than those obtained from the threshold temperatures of the male. H. koebelei deposited a higher number of eggs than the other coccinellid; however, H. convergens developed a higher number of viable offspring. The longestived ladybird was H. koebelei at the different studied temperatures. The sex ratio at 20 deg C was 2.7:1 for the convergens lady bird beetle and 2.8:1 for the other.El ciclo biologico de H. koebelei a 20, 25, 29 y 32 grados C y fotoperiodo de 12 horas, fue mas largo en sus diferentes fases biologicas que el de H. convergens. Las temperaturas umbrales en los estados biologicos obtenidas a las cuatro temperaturas estudiadas fueron mas altas para H. convergens y variaron de 9.1 grados C a 15.0 grados C; para H. koebelei fueron menores con la variacion de 2.4 grados C a 13.7 grados C. Referente a las unidades calor o grados dia, en H. convergens se presentaron datos mas bajos que en la otra especie. Las unidades calor de las diferentes fases biologicas de las dos especies de Hippodamia, obtenidas a partir de la temperatura umbral de la hembra, fueron mas altas que las obtenidas a partir de las temperaturas umbrales del macho. H. koebelei deposito mayor numero de huevecillos que el otro coccinelido; sin embargo, H. convergens desarrollo mayor numero de descendientes viables. La catarinita mas longea fue H. koebelei a las diferentes temperaturas estudiadas. La proporcion de sexos a 20 grados C de H. convergens y H. koebelei no presento diferencias.
Type Summary
Availability INIFAP(Mexico)
Availability number 9700171
Serial Title Agrociencia (Mexico); Serie Proteccion Vegetal
Serial ID - ISSN 0188-3046
Serial number v. 1(3) p. 23-34
Serial Date (1990)

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