Nitrogen Fertilizer Influence on Greenbug (Homoptera: Aphididae) Dynamics and Damage to Sorghum1
- 1 August 1982
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 75 (4), 695-698
- https://doi.org/10.1093/jee/75.4.695
Abstract
Green bug, Schizaphis graminum (Rondani), densities decreased in direct relationship to nitrogen (N) fertilizer rate (0, 45, 90, 135, 180, and 225 kg N/ha) and to increase in plant dry matter. Damage ratings related to green bug density indicated that N fertilizer did not alter natural sorghum tolerance to greenbugs. Greenbug dynamics responded in a positive manner to NH4+-N content in leaves. These data indicate that increasing N fertilizer enhanced sorghum fitness as a green bug host. However, the rate of aphid increase diminished at the higher N concentrations.This publication has 4 references indexed in Scilit:
- Temperature and Plant Nutrient Effects on Resistance of Seedling Sorghum to the Greenhug12Journal of Economic Entomology, 1979
- Greenbug Populations and Their Damage to Winter Wheat as Affected by Fertilizer Applications1Journal of Economic Entomology, 1957
- Effect of Rates of Nitrogen Application on Greenbug Damage to Oats, Rye, and Ryegrass1Agronomy Journal, 1954
- Influence of Lime and Nitrogenous Fertilizers on the Population of Greenbugs Infesting Oats1Journal of Economic Entomology, 1951