red spider


red spider
n.
any of a number of small spider mites that can defoliate plants

* * *

mite
also called  spider mite 

      any of the plant-feeding mites of the family Tetranychidae (subclass Acari). Red spiders are a common pest on houseplants (houseplant) and agriculturally important plants, including the foliage and fruit of orchard trees.

      The life cycle of the red spider from egg to adult takes about three weeks. Adult mites measure about 0.5 mm (about 0.02 inch) in length. Contrary to what their name suggests, all species are not red in colour; some are green, yellow, or orange. The mites are sometimes mistaken for small spiders because of their habit of spinning a loose silk webbing on infested plants. A heavy infestation can cause complete defoliation. Spider mites have become difficult to control because of their increasing resistance to pesticides. Various alternative methods of treating infestations have been investigated, the most effective of which involves the use of the predatory mite Phytoseiulus similis.

* * *


Universalium. 2010.

Look at other dictionaries:

  • Red spider — Red Red, a. [Compar. {Redder} ( d?r); superl. {Reddest}.] [OE. red, reed, AS. re[ a]d, re[ o]d; akin to OS. r[=o]d, OFries. r[=a]d, D. rood, G. roht, rot, OHG. r[=o]t, Dan. & Sw. r[ o]d, Icel. rau[eth]r, rj[=o][eth]r, Goth. r[ a]uds, W. rhudd,… …   The Collaborative International Dictionary of English

  • red spider — n. any of a number of small spider mites that can defoliate plants …   English World dictionary

  • red spider — noun small web spinning mite; a serious orchard pest • Syn: ↑red spider mite, ↑Panonychus ulmi • Hypernyms: ↑spider mite, ↑tetranychid • Member Holonyms: ↑Panonychus, ↑ …   Useful english dictionary

  • red spider — red′ spi′der n. ivt ent spider mite • Etymology: 1640–50 …   From formal English to slang

  • red spider — noun Date: 1646 spider mite; especially two spotted spider mite …   New Collegiate Dictionary

  • red spider. — See spider mite. [1640 50] * * * …   Universalium

  • red spider. — See spider mite. [1640 50] …   Useful english dictionary

  • Red Spider Nebula — A Hubble Space Telescope image of NGC 6537 Credit: NASA/STScI/ESA Observation data (Epoch J2000.0) …   Wikipedia

  • red spider mite — noun small web spinning mite; a serious orchard pest • Syn: ↑red spider, ↑Panonychus ulmi • Hypernyms: ↑spider mite, ↑tetranychid • Member Holonyms: ↑Panonychus, ↑ …   Useful english dictionary

  • Red-Spider-Nebel — Datenbanklinks zu NGC 6537 Planetarischer Nebel Daten von NGC 6537 …   Deutsch Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.