Impulsive control strategies in biological control of pesticide |
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| Authors: | Lu Zhonghua Chi Xuebin Chen Lansun |
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| Institution: | Supercomputing Center, Computer Network Information Center, Chinese Academy of Sciences, Post Office Box 349, Number 4, Nan 4 Street, Zhongguancun, 100080, Beijing, People's Republic of China. zhlu@jupiter.cnc.ac.cn |
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| Abstract: | By presenting and analyzing the pest-predator model under insecticides used impulsively, two impulsive strategies in biological control are put forward. The first strategy: the pulse period is fixed, but the proportional constant E(1) changes, which represents the fraction of pests killed by applying insecticide. For this scheme, two thresholds, E(1)(**) and E(1)(*) for E(1) are obtained. If E(1)>or=E(1)(*), both the pest and predator (natural enemies) populations go to extinction. If E(1)(**)
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| Keywords: | 92D25 34C25 34D20 |
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