eng Science and Education Publishing American Journal of Applied Mathematics and Statistics 2333-4576 2014-05-14 2 3 157 159 10.12691/ajams-2-3-10 AJAMS20142310 article Rajan K Sharma 1 Shyam Sundar ssmishra_75@yahoo.co.in 2 D. Kandu 3 Department of Mathematics, PSITCOE, Kanpur (U.P.), India Department of Mathematics, P S Institute of Technology, Kanpur (U.P.), India Department of Mathematics, M.M.M. Engineering College, Gorakhpur (U.P.), India In this paper, we have discussed a mathematical model for the competition in n-species aphid population for a limited resource and their limiting behavior is studied as time approaches to infinity. Aphids are among the most conspicuous and important pests in green houses and crops. It is assumed that aphids excrete honeydew and cover an area by it's saliva at time which then form a weak cover on the leaf surface preventing the individuals from further sucking and movement and therefore causing deaths due to starvation. It means that the mortality rate of aphids become very high in the environment by honeydew excretions of other aphids. Analytically, it has been shown that how aphid population grows with time . http://pubs.sciepub.com/ajams/2/3/10/ajams-2-3-10.pdf aphid population environment limited resources Voltra model n-Species competition