Understanding the Consequences of Soil Amendments on Host Selection by a Maize Viral Vector (CicadulinambilaNaudé)
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Keywords

Nitrogen
phosphorus
colonization
maize streak
transmission

How to Cite

1.
Magenya OEV, Mueke JM. Understanding the Consequences of Soil Amendments on Host Selection by a Maize Viral Vector (CicadulinambilaNaudé). Glob. J. Agric. Innov. Res. Dev [Internet]. 2016 Dec. 31 [cited 2022 May 23];3(2):35-42. Available from: https://www.avantipublishers.com/index.php/gjaird/article/view/699

Abstract

The significance of applying different rates of soil elements on host selection by a viral vector was studied in a confined habitat, to understand the mechanism of host selection by the leafhopper (CicadulinambilaNaudé), a vector of Maize Streak Virus Disease (MSV). Field collected leafhoppers were used in a screen house to assess insect settling preferences by evaluating insect behavior towards host plants, exposed to different rates of nitrogen and phosphorus fertilizers (0, 25, 50 and 75kg/ha.). Analysis of the two elements in the host plant tissues showed significant variation in levels of percent nitrogen (% N: p = 0.031) and phosphorus (% P: p = 0.001). Similarly, a significantly higher number of insects settled on plants treated with a higher rate of nitrogen (21%) and phosphorus (44%), compared to low rates of the same (9% and 28% respectively) (p = 0.019). Host choice by insects was significantly longer phosphorus treated hosts (four days) than nitrogen treated (three days). No significant differences were detected in the analysis of host plants for % neutral detergent fibers, acid detergent fibers, lignin and tannins. However, regression analysis revealed that neutral detergent fibers had significantly negative relationship with nitrogen fertilizer, while and phosphorus showed a negative relationship with lignin. This study showed that fertilizer amendments can critically affect host attack by leafhoppers with amplifications on viral disease transmission.

https://doi.org/10.15377/2409-9813.2016.03.02.2
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Copyright (c) 2016 O. E. V. Magenya, J. M. Mueke