The greenhouse thrip has some varied habitats.  Since the greenhouse thrip feeds on leaves and flower blossoms it is mostly found on or near these places.  These little insects can be found in warm climates as well as in greenhouses (Wigglesworth 1964).  It has been recored in 41 coutries around the world but is believed to have originated in South America. Greenhouse thrips are now believed to inhabit tropical, sub-tropical and temperate climate areas (Arnett 1985).   This particular thrip can be spotted under leaves, on flower blossoms and under bark in temperate areas summer months and in greenhouses year round (Dunn 1996).  In greenhouses this organism can be a big problem.  Heliothrips Haemorrhoidalis has over 100 host plants.  The greenhouse thrips normally eat the leaves of a plant and the pierced tissues of the plant that the thrip does not get through bleach and eventually turn brown (Arnett 1985).  Most of the plants that this organism feeds on are ornamental plants.  Often greenhouse thrips are found on perennials, usually those with harder leaves, including avocado, azalea, hypericum, laurel (English and Grecian), photinia, and rhododendron (Eiseman and Charney 2010).  Another telling sign that Heliothrips Heamorrhoidalis (bouche) has been present is the appearance of small black specks of feces on the leaves of a plant (Morse and Hoddle 2006).