{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,19]],"date-time":"2026-03-19T04:39:24Z","timestamp":1773895164192,"version":"3.50.1"},"reference-count":33,"publisher":"World Scientific Pub Co Pte Lt","issue":"10","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Bifurcation Chaos"],"published-print":{"date-parts":[[2014,10]]},"abstract":"<jats:p> A Filippov system is proposed to describe the stage structured nonsmooth pest growth with threshold policy control (TPC). The TPC measure is represented by the total density of both juveniles and adults being chosen as an index for decisions on when to implement chemical control strategies. The proposed Filippov system can have three pieces of sliding segments and three pseudo-equilibria, which result in rich sliding mode bifurcations and local sliding bifurcations including boundary node (boundary focus, or boundary saddle) and tangency bifurcations. As the threshold density varies the model exhibits the interesting global sliding bifurcations sequentially: touching \u2192 buckling \u2192 crossing \u2192 sliding homoclinic orbit to a pseudo-saddle \u2192 crossing \u2192 touching bifurcations. In particular, bifurcation of a homoclinic orbit to a pseudo-saddle with a figure of eight shape, to a pseudo-saddle-node or to a standard saddle-node have been observed for some parameter sets. This implies that control outcomes are sensitive to the threshold level, and hence it is crucial to choose the threshold level to initiate control strategy. One more sliding segment (or pseudo-equilibrium) is induced by the total density of a population guided switching policy, compared to only the juvenile density guided policy, implying that this control policy is more effective in terms of preventing multiple pest outbreaks or causing the density of pests to stabilize at a desired level such as an economic threshold. <\/jats:p>","DOI":"10.1142\/s0218127414501223","type":"journal-article","created":{"date-parts":[[2014,10,31]],"date-time":"2014-10-31T05:52:45Z","timestamp":1414734765000},"page":"1450122","source":"Crossref","is-referenced-by-count":27,"title":["Codimension-1 Sliding Bifurcations of a Filippov Pest Growth Model with Threshold Policy"],"prefix":"10.1142","volume":"24","author":[{"given":"Sanyi","family":"Tang","sequence":"first","affiliation":[{"name":"College of Mathematics and Information Science, Shaanxi Normal University, Xi'an 710062, P. R. 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