Larval consumption and prey of toxorhynchites splendens (Diptera: culicidae) on different immature stages of aedes spp. and culex quinquefasciatus (Diptera: culicidae)

Issue Date

10-2017

Abstract

Aimed at providing a novel and sustainable local control measure for dengue mosquitoes, Aedes aegypti (Linnaeus) and A. albopictus (Skuse), the predatory performance of larval Toxorhynchites splendens (Wiedemann) was evaluated under laboratory conditions. Overall, more A. aegypti wrigglers and pupae were eaten than A. albopictus by all larval instars of T. splendens. Predation also increased as more preys were introduced. However, the proportion in relation to the total number of preys declined as the larva reached satiation. The fourth and last instar was the most voracious contributing to 70% of the total consumption during the entire larval period. On the other hand, consumption rates of males and females did not vary significantly. First and second instar T. splendens preferred younger larval instars of A. aegypti while the fourth instar was inclined to feed on older larvae and pupae. Moreover, most larval instars of T. splendens consumed more A. aegypti when offered mixed preys over A. albopictus and C. quinquefasciatus.

Source or Periodical Title

The Philippine Entomologist

ISSN

0048-3753

Volume

31

Issue

2

Page

145-146

Document Type

Article

Frequency

semi-annually

Language

English

En – AGROVOC descriptors

TOXORHYNCHITES SPLENDENS; AEDES AEGYPTI; AEDES ALBOPICTUS; INSECTA; PESTS; PEST OF PLANTS; PEST INSECTS; PREDATORY INSECTS; LARVAL STAGE; INSECTA AND PREDATORS; PREDATION

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