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Pest Manag Sci

Title:		"Population and damage projection of Spodoptera litura (F.) on peanuts (Arachis hypogaea L.) under different conditions using the age-stage, two-sex life table"
Author(s):		Tuan SJ; Lee CC; Chi H;
Address:		"Department of Entomology, National Chung Hsing University, Taichung, Taiwan, Republic of China"
Journal Title:		Pest Manag Sci
Year:		2014
Volume:		20130819
Issue:		5
Page Number:		805 - 813
DOI:		10.1002/ps.3618
ISSN/ISBN:		1526-4998 (Electronic) 1526-498X (Linking)
Abstract:		"BACKGROUND: The common cutworm, Spodoptera litura (Fabricus), is the most serious pest of peanuts in Taiwan. In order to devise an ecology-based and cost-effective control program, we collected life table data and consumption rates from larvae reared indoors at a constant temperature of 25 degrees C, or outdoors at ambient temperatures during the spring and fall of 2010. A computer simulation was then used to project the population growth and damage potential of S. litura on peanuts. RESULTS: Laboratory-reared S. litura individuals produced 3548 eggs/female, whereas those reared outdoors produced 3452 and 3072 eggs/female in the spring and fall, respectively. The intrinsic rate of increase was 0.1828, 0.1308 and 0.1545 day(-1), and the net consumption rate was 194.0, 132.2 and 166.6 cm(2) larva(-1) at 25 degrees C, in spring and fall, respectively. Population projection showed a faster growth and higher damage potential of S. litura in the fall. CONCLUSION: Population projections based on life tables and stage-specific consumption rates can reveal the stage structure and damage potential of the pest population. Our results showed that monitoring data obtained by using pheromone traps were not in concordance with the damage potential of the pest population. This approach offers a promising tool for pest management"
Keywords:		"Animals Arachis/growth & development Female *Food Chain Larva/physiology Life Tables Male Models, Biological Ovum/growth & development/physiology Population Dynamics Pupa/growth & development/physiology Seasons Spodoptera/growth & development/*physiology;"
Notes:		"MedlineTuan, Shu-Jen Lee, Chung-Chieh Chi, Hsin eng Research Support, Non-U.S. Gov't England 2013/07/31 Pest Manag Sci. 2014 May; 70(5):805-13. doi: 10.1002/ps.3618. Epub 2013 Aug 19"