Post-release monitoring in classical biological control of weeds: assessing impact and testing pre-release hypotheses

Hypotheses Testing: Poisson Versus Stress-release

We consider the problem of hypotheses testing with the basic simple hypothesis: observed sequence of points corresponds to stationary Poisson process with known intensity against a composite one-sided parametric alternative that this is a self-correcting point process. The underlying family of measures is locally asymptotically quadratic and we describe the behavior of score function, likelihoo...

Applying molecular-based approaches to classical biological control of weeds

The use of molecular techniques is rapidly growing as the tools have become more diverse and powerful, more widely available, and easier to implement. Molecular analyses are able to elucidate information about target weeds that is critical to improving control success, such as taxonomic clarification, evidence of hybridization and cryptic species, better development of test plant lists, populat...

Biological control of weeds.

Classical biological control, i.e. the introduction and release of exotic insects, mites, or pathogens to give permanent control, is the predominant method in weed biocontrol. Inundative releases of predators and integrated pest management are less widely used. The United States, Australia, South Africa, Canada, and New Zealand use biocontrol the most. Weeds in natural ecosystems are increasing...

The Use and Impact of Correctional Programming for Inmates on Pre- and Post-Release Outcomes

Optimal Release Policy for Prophylactic Biological Control

In this paper, we study the prophylactic biological control strategy for greenhouse crops protection. The method consists in the preventive installation of natural enemies to fight against an invading pest, using discrete augmentative (i.e. inondative) releases of the natural enemies. We consider a simple non negative prey (pest) predator (natural enemy) model in ordinary differential equations...