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Trends in Entomology   Volumes    Volume 18 
Using food lures to monitor and control pest populations: case of fall armyworm on maize
Clovis Bessong Tanyi, Thomas Eku Njock, Nelson Neba Ntonifor
Pages: 83 - 96
Number of pages: 14
Trends in Entomology
Volume 18 

Copyright © 2022 Research Trends. All rights reserved

Considering the voracious feeding impact of the fall armyworm (FAW), Spodoptera frugiperda in major corn-growing belts of Africa, low-cost food lures were compared with the commercial pheromone for monitoring and control of this pest via mass adult captures. The lures: palm wine, honeygar, commercial pheromone, maize chyme, and a water control each replicated four times were tested in randomised complete block experimental designs during the rainy and dry seasons in two agro-ecological zones of Cameroon. Using the Generalized Linear Mixed Model showed that the maize chyme lure attracted significantly higher numbers of the moths compared to the commercial pheromone (p<0.001). The maize chyme attracted a total mean of 61.75 FAW adults in the Western Highland savanna which is significantly different from the Humid rainforest with 30.50 moths (p<0.001). Next was honeygar with 53.25 and 28.12 adults in the Highland savanna and Humid rainforest zones respectively, which were significantly different from Palm wine (p<0.001). The control treatment attracted no moth throughout the experiment, while the commercial pheromone had a mean of 12.75 and 4.30 moths in the Western Highland savanna and Humid rainforest zones respectively. There was a negative correlation (p = -0.57) between the number of adult armyworm moths captured in traps and the number of their destructive larvae on maize as well as the maize damage score. The number of larvae on maize and the damage score were negatively correlated with maize yields ((p = -0.66) and (p = -0.56) respectively). This study showed the effectiveness of home-made traps and food lures compared to commercial pheromone trap and lure for monitoring FAW populations and also reducing the larval populations and crop damage to improve maize yields. These home-made traps and food lures can serve as components of indigenous integrated management strategy of fall armyworm for resource-constrained smallholder farmers.
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