Back to Search Start Over

Effect of temperature and grain type on the long-term persistence and efficacy of s-methoprene in controlling Rhyzopertha dominica.

Authors :
Li, Lei
Zeng, Ling
Liang, Guangwen
Source :
Pest Management Science; Jul2014, Vol. 70 Issue 7, p1066-1070, 5p
Publication Year :
2014

Abstract

BACKGROUND The efficacy of methoprene can vary with surface substrates, application methods and environmental conditions. The objectives of the present study were to examine the effects of temperature and grain type on the long-term persistence and efficacy of methoprene in controlling Rhyzopertha dominica from Guangzhou, China. RESULTS Methoprene applied at 1 mg kg<superscript>-1</superscript> caused >90% suppression of F<subscript>1</subscript> adult progeny of R. dominica for 150-270 days. Temperature and grain type both influenced the long-term persistence of methoprene. Overall multivariate analysis of variance showed that the order of progeny reduction at different temperatures (°C) was: 24 > 28 > 32 > 36; the order of the progeny reduction on the different grains was: paddy > wheat and maize. CONCLUSION The results of our experiments show the maximum effect of methoprene for R. dominica control at 24 °C on paddy. © 2013 Society of Chemical Industry [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
1526498X
Volume :
70
Issue :
7
Database :
Complementary Index
Journal :
Pest Management Science
Publication Type :
Academic Journal
Accession number :
96311919
Full Text :
https://doi.org/10.1002/ps.3648