in this paper, a new stage structured prey-predator model with linear functional response is proposed and studied. the stages for prey have been considered. the proposed mathematical model consists of three nonlinear ordinary differential equations to describe the interaction among juvenile prey, adult prey and predator populations. the model is analyzed by using linear stability analysis to ob...

Spiders do not feed directly on vertebrate blood, but a small East African jumping spider (Salticidae), Evarcha culicivora, feeds indirectly on vertebrate blood by choosing as preferred prey female mosquitoes that have had recent blood meals. Experiments show that this spider can identify its preferred prey by sight alone and by odor alone. When presented with two types of size-matched motionle...

In this paper, we consider a SI system with spraying microbial pesticide and releasing the infected pests, the infected pests have the function similar to the microbial pesticide and can infect the healthy pests, further weaken or disable their prey function till death. By applying the Floquet theorem of linear periodic impulsive equations and the comparison theorem, we show that there exists a...

The whiteflies Bemisia tabaci Gennadius and Trialeurodes vaporariorum (Westwood) (Hemiptera: Aleyrodidae) are two of the main pests in tomato crops. Their biological control in Mediterranean IPM systems is based on the predators Macrolophus pygmaeus (Rambur) and Nesidiocoris tenuis Reuter (Hemiptera: Miridae), as well as on the parasitoids Eretmocerus mundus (Mercet) and Encarsia pergandiella H...

b t T a e t n fi b This paper demonstrates the necessity to consider lants as an essential and interactive component of iological control practices. Plants not only possess irect chemical and morphological defenses against erbivores but also benefit from indirect defenses rovided by parasitoids and predators, which use erbivores as hosts or prey. Plants play an active role n the interplay betwe...

Spiders are among the dominant invertebrate predators in agricultural systems and significant regulators of insect pests. The precise dynamics biocontrol pests field are, however, poorly understood. This study investigates how density-independent prey choice, taxonomy, life stage, sex, web characteristics affect spider diet biocontrol. We collected spiders four genera Linyphiidae (i.e., Bathyph...

Abstract The bug Orius similis Zheng is a native generalist predator of insect pests in southern China. fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith), notorious defoliator that now an economically important pest throughout To investigate the ability O. to control FAW, we evaluated predatory capacity, behavior, and functional response with respect FAW their olfactory response. Both fem...