This guidebook is a product of the first phase of the “Revegetation by Design” program conducted from February 2003 till November 2006. This program aims to create awareness that local vegetation “outside the crop” has an impact on the pest and diseases pressure “within the crop”. Broadly, “Revegetation by Design” aims to promote a landscape that will reduce pest pressure on nearby crops by replacing weeds with selected species of native vegetation. The horticulture-growing region of the Northern Adelaide Plains (NAP) provided an appropriate opportunity to evaluate this concept. It is an area that has lost most of its native vegetation, and has increasing pest and disease issues that pose a genuine threat to the future viability of horticulture. The use of native vegetation is considered both a cultural control and biological control tactic forming part of an Integrated Pest Management (IPM) approach, in that the native vegetation provides a refuge that can support released biological control agents or provide habitat for resident colonies of beneficial organisms. Information relevant to the management of Western flower thrips (WFT), Tomato spotted wilt virus (TSWV) and other Thrips and Tospoviruses is included in this item.