Affordable Access

deepdyve-link
Publisher Website

Predation potential of Chilocorus cacti (Coleoptera: Coccinellidae) to the prickly pear cacti pest Dactylopius opuntiae (Hemiptera: Dactylopiidae).

Authors
  • Flores, A1
  • Olvera, H
  • Rodríguez, S
  • Barranco, J
  • 1 Depto de Producción Agrícola y Animal, Univ Autónoma Metropolitana, Hueso 1100, Villa Quietud, DF, 04960, México. [email protected]
Type
Published Article
Journal
Neotropical Entomology
Publisher
Springer-Verlag
Publication Date
Aug 01, 2013
Volume
42
Issue
4
Pages
407–411
Identifiers
DOI: 10.1007/s13744-013-0139-z
PMID: 23949861
Source
Medline
License
Unknown

Abstract

Functional response of the predator Chilocorus cacti (Linnaeus) (Coleoptera: Coccinellidae) on five densities of Dactylopius opuntiae (Cockerell) (Hemiptera: Dactylopiidae) female adults was assessed under laboratory conditions. The searching efficiency of C. cacti significantly decreased as prey density increased. The logistic regression for the predator had a negative and significant linear parameter indicating a type II functional response. Non-linear regression for Holling predator equation estimated a handling time of 1.79 ± 0.129 h and attack rate coefficient of 0.1003 ± 0.030. Most of this handling time was because the predator spent a lot of time removing the waxy coating that protects adult females of D. opuntiae. Chilocorus cacti consumes females of D. opuntiae in their reproductive stage; therefore, it could be an effective natural enemy to suppress or regulate low density populations of D. opuntiae, preventing them to reach high densities.

Report this publication

Statistics

Seen <100 times