Determination of fitness traits of Orius strigicollis Poppius (Hemiptera: Anthocoridae) on Pectinophora gossypiella (Lepidoptera: Gelechiidae) using two-sex life table analysis
Pink bollworm ( ) is a destructive insect pest of cotton crops in China and globally, which is actively predated on by . Studies on the fitness or survival of fed on at different temperatures have not been reported. The fitness of may be well explained using two-sex life table parameters. Thus, the...
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Published in | PeerJ (San Francisco, CA) Vol. 8; p. e9594 |
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Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
PeerJ, Inc
17.08.2020
PeerJ Inc |
Subjects | |
Online Access | Get full text |
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Summary: | Pink bollworm (
) is a destructive insect pest of cotton crops in China and globally, which is actively predated on by
. Studies on the fitness or survival of
fed on
at different temperatures have not been reported. The fitness of
may be well explained using two-sex life table parameters. Thus, the present study provides important insights for the effective biocontrol of
.
Considering the importance of fitness parameters and biocontrol, the present study explores the feeding potential and age-stage, two-sex life table traits of
on
eggs at different temperatures (24, 28 and 32 °C) in the laboratory.
The intrinsic rate of increase (
) was higher at 28 °C (0.14 d
) than at 24 °C (0.0052 d
) and 32 °C (0.12 d
). Similarly, the net reproductive rate (
) was higher at 28 °C (17.63 offspring) than at 24 °C (1.13 offspring) and 32 °C (10.23 offspring). This concluded that the maximum feeding potential and growth capacity of
could be attained at 28 °C when fed on
eggs.
adults preferred to feed on
eggs compared with first instar larvae. Based on these results, the present study suggests that
represents a promising biological control agent against
eggs in cotton fields. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 2167-8359 2167-8359 |
DOI: | 10.7717/peerj.9594 |