Effect of temperature on life history of Quadrastichus haitiensis (Hymenoptera: Eulophidae), an endoparasitoid of Diaprepes abbreviatus (Coleoptera: Curculionidae)
نویسندگان
چکیده
The influence of temperature on life history traits of the egg parasitoid Quadrastichus haitiensis (Gahan) (Hymenoptera: Eulophidae) was investigated in the laboratory on eggs of the root weevil Diaprepes abbreviatus (L.) (Coleoptera: Curculionidae). Duration of development from egg to adult decreased from 39.99 ± 0.27 days to 13.57 ± 0.07 days (mean ± SE) as temperature increased from 20 to 33 C, respectively. No development was observed at 5–15 C. Fecundity was highest at 25 and 30 C (70–73 eggs per female) but was reduced at 33 C (21.5 eggs per female). Oviposition rate was also reduced at 33 C. Q. haitiensis accepted host eggs from 0 to 7 days old for oviposition but was most prolific when parasitizing 1to 4-day-old eggs. Very few adult Q. haitiensis emerged from host eggs that were 5–7 days old, however, D. abbreviatus egg mortality was similar for eggs 0–7 days old. A brief description of the parasitoid egg, larva, prepupae, and pupa is provided. 2005 Elsevier Inc. All rights reserved.
منابع مشابه
Effect of host plants on successful parasitism by Haeckeliania sperata (Hymenoptera: Trichogrammatidae) on Diaprepes abbreviatus (Coleoptera: Curculionidae) eggs.
Diaprepes abbreviatus L. is a highly polyphagous root weevil that causes damage to several fruit crops, ornamental plants, and other naturally occurring plants in Florida. Haeckeliania sperata Pinto is a gregarious endoparasitoid that attacks D. abbreviatus eggs. We hypothesized that the reproductive success of H. sperata is affected by the host plant of D. abbreviatus. Six host plants with var...
متن کاملEffect of Micromite® on the Egg Parasitoids Ceratogramma Etiennei (hymenoptera: Trichogrammatidae) and Quadrastichus Haitiensis (hymenoptera: Eulophidae)
متن کامل
Re-description and first host and biology records of Entedon magnificus (Girault & Dodd) (Hymenoptera, Eulophidae), a natural enemy of Gonipterus weevils (Coleoptera, Curculionidae), a pest of Eucalyptus trees.
Entedon magnificus (Girault & Dodd) (Hymenoptera: Eulophidae, Entedoninae) is recorded as a gregarious larval endoparasitoid of Gonipterus weevils (Coleoptera: Curculionidae), significant pests of Eucalyptus trees. Entedon magnificus is re-described and illustrated based on females and males from Australia and Tasmania.
متن کاملReproductive biology of Fidiobia dominica (Hymenoptera: Platygastridae), an egg parasitoid of Diaprepes abbreviatus (Coleoptera: Curculionidae).
The reproductive biology of Fidiobia dominica Evans (Hymenoptera: Platygastridae) was studied in the laboratory (25.6 +/- 1 degrees C) using host eggs of Diaprepes abbreviatus L. (Coleoptera: Curculionidae). F. dominica readily parasitized D. abbreviatus eggs on both host plant and wax paper substrates. The number of egg masses parasitized and the number of offspring produced were higher when f...
متن کاملRelative susceptibility of Haeckeliania sperata (Hymenoptera: Trichogrammatidae) to pesticides used in citrus and ornamental systems in Florida.
Haeckeliania sperata Pinto is an egg-endoparasitoid of Diaprepes abbreviatus L. (Coleoptera: Curculionidae). We evaluated the relative susceptibility of H. sperata adults to commercially relevant pesticides used in citrus and ornamental production systems. Parasitoids were exposed to pesticide residues on leaf surfaces. Four concentrations of seven pesticides were tested; concentrations for eac...
متن کامل