Within-field distribution of Aphis gossypii and aphidophagous lady beetles in chili, Capsicum annuum

Touhidur Rahman, Mohammad Nor Mohd Roff, Idris Abd. Ghani

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Understanding the spatial distribution of insect pests and their natural enemies can be very important for a successful integrated pest management approach. In Malaysia, Aphis gossypii Glover (Hemiptera: Aphididae) is the only aphid species colonizing and responsible for significant crop losses in chili, Capsicum annuum L. (Solanaceae). Several species of aphidophagous lady beetles (Coleoptera: Coccinellidae) occur naturally, of which three species [Menochilus sexmaculatus (Fabricius), Coelophora inaequalis (Fabricius), and Coccinella transversalis (Fabricius)] predominate in chili ecosystems. In this study, we investigated the spatial distribution of A. gossypii and associated lady beetle predators during two growing seasons of C. annuum, using Spatial Analysis by Distance Indices (SADIE). Both aphid and lady beetle populations were spatially aggregated, the strength of aggregation being strongest mid-way through the cropping cycle. We concluded that the aggregated distribution of adult lady beetles is driven by the spatial distribution of A. gossypii.

Original languageEnglish
Pages (from-to)211-219
Number of pages9
JournalEntomologia Experimentalis et Applicata
Volume137
Issue number3
DOIs
Publication statusPublished - Dec 2010

Fingerprint

Aphis gossypii
Coccinellidae
Capsicum annuum
beetle
Coelophora inaequalis
spatial distribution
aphid
Aphidoidea
Coccinella
integrated pest management
natural enemy
spatial analysis
crop losses
cropping practice
Solanaceae
Aphididae
growing season
natural enemies
Malaysia
insect pests

Keywords

  • Coccinella transversalis
  • Coelophora inaequalis
  • IPM
  • Local association
  • Menochilus sexmaculatus
  • SADIE
  • Spatial distribution

ASJC Scopus subject areas

  • Insect Science
  • Ecology, Evolution, Behavior and Systematics

Cite this

Within-field distribution of Aphis gossypii and aphidophagous lady beetles in chili, Capsicum annuum. / Rahman, Touhidur; Roff, Mohammad Nor Mohd; Abd. Ghani, Idris.

In: Entomologia Experimentalis et Applicata, Vol. 137, No. 3, 12.2010, p. 211-219.

Research output: Contribution to journalArticle

Rahman, Touhidur ; Roff, Mohammad Nor Mohd ; Abd. Ghani, Idris. / Within-field distribution of Aphis gossypii and aphidophagous lady beetles in chili, Capsicum annuum. In: Entomologia Experimentalis et Applicata. 2010 ; Vol. 137, No. 3. pp. 211-219.
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