Impatiens thrips (Echinothrips americanus) is an increasing problem in greenhouse cultivation, having spread to many countries within the last 30 years. The thrips have mostly been able to spread as a consequence of the trade in foliage plants.

Echinothrips americanus is a species of thrips (the taxonomic order Thysanoptera) in the family Thripidae.

Apr 5, 2025 · The poinsettia thrips, Echinothrips americanus, is a relatively dark thrips that is also called the impatiens thrips. Females are about 1 / 16 inch long, slender, and have two pale spots or bands on the wings. Males are somewhat smaller.

Echinothrips is a genus of thrips in the family Thripidae. There are about seven described species in Echinothrips. [1] [2] [3]

Echinothrips americanus has six developmental stages: egg, first and second instar larva, propupa, pupa, and adult. Echinothrips americanus are typically slow-moving compared with other active thrips like flower thrips and complete all life stages on the green tissue of plants.

Jun 29, 2017 · Scientists have been taking another close look at how to control this thrips with a range of species of predatory mites and bugs. In this study, striking differences were found between the four species of predatory mite used and the controlling effect was boosted in some cases by providing pollen.

Echinothrips americanus has a range over most of the eastern United States. It has been reported as a pest of nursery and landscape plants in the southern part of its range and as a greenhouse pest on several plants. This thrips will feed on both the upper and lower leaf surfaces but is usually more common on the lower surface.

Nov 11, 2017 · The poinsettia thrips, Echinothrips americanus Morgan, is an upcoming pest in greenhouse crops, causing serious damage in various vegetable and ornamental crops through extensive foliage feeding.

The genus Echinothrips includes only eight species, all of which are found between eastern North America and southern South America (Mound & Marullo, 1996). Echinothrips americanus Morgan. Thripidae, Thripinae. Poinsettia thrips. Breeding on leaves.

Typical character states of Echinothrips americanus: As with other thrips species the life cycle from egg to adult is dependent on temperature and has been documented to range from 5.8 to 15.5 days for egg development, and 5.6 to 33.9 days for larvae to develop to adults.