Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

The hordes: emerging pest threats to plants in the Western USA.

Abstract

This paper highlights a few of the emerging invasive species of concern in the western USA: Hemerocallis gall midge, daylily gall midge (Contarinia quinquenotata), Allium leafminer, onion leafminer (Phytomyza gymnostoma), Japanese flower thrips (Thrips setosus), and other pests, i.e. greenhouse thrips (Heliothrips haemorrhoidalis), rose stem girdler (Agrilus cuprescens), ash whitefly (Siphoninus phillyreae), cabbage whitefly (Aleyrodes proletella), banded-winged whitefly (Trialeurodes abutilonea) and viburnum leaf beetle (Pyrrhalta viburni). Short information is given on their geographical distribution, biology, crop damage and control.