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Aphids-induced plant volatiles affect diel foraging behavior of a ladybird beetle Coccinella septempunctata

Norkute, Milda and Olsson, Ulf and Ninkovic, Velemir (2020). Aphids-induced plant volatiles affect diel foraging behavior of a ladybird beetle Coccinella septempunctata. Insect Science. 27 , 1266-1275
[Journal article]

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Abstract

The ladybird beetle Coccinella septempunctata (L.) is an important biocontrol agent of pests such as various aphid species. Despite being one of the most studied coccinellid species, many aspects of its foraging behavior are still not completely understood. This study focuses on the diel foraging behavior of C. septempunctata, investigating their olfactory orientation toward aphid-infested plants, walking activity on plants and on the soil, and feeding rates. In the scotophase the ladybird beetles were significantly more attracted to the odor of aphid-infested plants, on which they also showed considerably higher walking activity then on uninfested controls. Females were more prone to utilize olfactory cues when searching for prey and fed at higher rates than males; this shows that they are better adapted to nocturnal activity, as they require higher food intake. Coccinella septempunctata have the same feeding rate during the scotophase as in the photophase. Our study shows that C. septempunctata has the potential to forage in the scotophase if prey is abundant. The results support the hypothesis that volatiles of aphid-infested plants can attract or arrest foraging adult ladybird beetles, even in the darkness, which makes a considerable contribution to efficient prey search and enhances feeding capacity.

Authors/Creators:Norkute, Milda and Olsson, Ulf and Ninkovic, Velemir
Title:Aphids-induced plant volatiles affect diel foraging behavior of a ladybird beetle Coccinella septempunctata
Year of publishing :2020
Volume:27
Page range:1266-1275
Number of Pages:10
ISSN:1672-9609
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution-Noncommercial-No Derivative Works 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Zoology
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:aphids, C7, feeding, ladybirds, photophase, scotophase
URN:NBN:urn:nbn:se:slu:epsilon-p-102678
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-102678
Additional ID:
Type of IDID
DOI10.1111/1744-7917.12734
Web of Science (WoS)000497148300001
ID Code:20047
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology

(NL, NJ) > Dept. of Energy and Technology
Deposited By: SLUpub Connector
Deposited On:02 Jan 2021 06:05
Metadata Last Modified:02 Jan 2021 06:11

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