Journal of Biological Control

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Biology and Functional Response of Andrallus spinidens (F) to the Rice Army Worm Spodoptera mauritia (Boisduval)


Affiliations
1 ICAR-Indian Institute of Rice Research, Rajendranagar, Hyderabad – 500030, Telangana State, India
 

The pentatomid bug, Andrallus spinidens (F.), is a polyphagous predator on lepidopteran larvae in rice fields in India. The basic biology and predatory potential of the bug was studied under laboratory conditions. The nymphs were reared in petri dishes and were fed 3rd to 5th instar Spodoptera mauritia (Boisduval) larvae. The mean development period from egg to adult was 21 days. Eggs were laid in batches of 45 to 95 and the mean total number of eggs laid by each female was 259. The second, third and fourth stage nymphs fed on 7.99, 8.32, 26.33 number of third instar larvae instar larvae of S. mauritia, respectively. The predator exhibited a type II functional response to S. mauritia larvae with a disc equation of Y’ = 0.41(5-0.74) x to the increasing density of S. mauritia. This study provides important life history information for using the predator A. spinidens as a possible biological control agent for army worm management in rice.

Keywords

Spiny Soldier Bug, Attack Ratio, Handling Time, Searching Time, Predatory Potential.
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  • Biology and Functional Response of Andrallus spinidens (F) to the Rice Army Worm Spodoptera mauritia (Boisduval)

Abstract Views: 280  |  PDF Views: 118

Authors

Chitra Shanker
ICAR-Indian Institute of Rice Research, Rajendranagar, Hyderabad – 500030, Telangana State, India
P. Sapna
ICAR-Indian Institute of Rice Research, Rajendranagar, Hyderabad – 500030, Telangana State, India
K. Shabbir
ICAR-Indian Institute of Rice Research, Rajendranagar, Hyderabad – 500030, Telangana State, India
V. Sunil
ICAR-Indian Institute of Rice Research, Rajendranagar, Hyderabad – 500030, Telangana State, India
B. Jhansi Rani
ICAR-Indian Institute of Rice Research, Rajendranagar, Hyderabad – 500030, Telangana State, India
Gururaj Katti
ICAR-Indian Institute of Rice Research, Rajendranagar, Hyderabad – 500030, Telangana State, India

Abstract


The pentatomid bug, Andrallus spinidens (F.), is a polyphagous predator on lepidopteran larvae in rice fields in India. The basic biology and predatory potential of the bug was studied under laboratory conditions. The nymphs were reared in petri dishes and were fed 3rd to 5th instar Spodoptera mauritia (Boisduval) larvae. The mean development period from egg to adult was 21 days. Eggs were laid in batches of 45 to 95 and the mean total number of eggs laid by each female was 259. The second, third and fourth stage nymphs fed on 7.99, 8.32, 26.33 number of third instar larvae instar larvae of S. mauritia, respectively. The predator exhibited a type II functional response to S. mauritia larvae with a disc equation of Y’ = 0.41(5-0.74) x to the increasing density of S. mauritia. This study provides important life history information for using the predator A. spinidens as a possible biological control agent for army worm management in rice.

Keywords


Spiny Soldier Bug, Attack Ratio, Handling Time, Searching Time, Predatory Potential.

References





DOI: https://doi.org/10.18311/jbc%2F2017%2F16279