greenhouse white fly

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• greenhouse whitefly — noun whitefly that inhabits greenhouses • Syn: ↑Trialeurodes vaporariorum • Hypernyms: ↑whitefly • Member Holonyms: ↑Trialeurodes, ↑genus Trialeurodes * * * noun …   Useful english dictionary

• tetrachloroethane — ▪ chemical compound       either of two isomeric colourless, dense, water insoluble liquids belonging to the family of organic halogen compounds. One isomer, 1,1,2,2 tetrachloroethane, also called acetylene tetrachloride, is highly toxic. Almost… …   Universalium

• Aleyrodoidea —   Aleyrodoidea Mosca Blanca (Trialeurodes …   Wikipedia Español

• environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …   Universalium

• Barack Obama — Barack and Obama redirect here. For other uses, see Barak (disambiguation) and Obama (disambiguation). For the Kenyan economist, President Obama s father, see Barack Obama, Sr …   Wikipedia

• Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …   Universalium

• Biological pest control — Biological control of pests in agriculture is a method of controlling pests (including insects, mites, weeds and plant diseases) that relies on predation, parasitism, herbivory, or other natural mechanisms. It can be an important component of… …   Wikipedia

• cañada — /keuhn yah deuh, yad euh/, n. Chiefly Western U.S. 1. a dry riverbed. 2. a small, deep canyon. [1840 50; < Sp, equiv. to cañ(a) CANE + ada n. suffix] * * * Canada Introduction Canada Background: A land of vast distances and rich natural resources …   Universalium

• Canada — /kan euh deuh/, n. a nation in N North America: a member of the Commonwealth of Nations. 29,123,194; 3,690,410 sq. mi. (9,558,160 sq. km). Cap.: Ottawa. * * * Canada Introduction Canada Background: A land of vast distances and rich natural… …   Universalium

• Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …   Universalium

• Climate change mitigation — Fossil fuel related CO2 emissions compared to five of IPCC s emissions scenarios. The dips are related to global recessions. Data from IPCC SRES scenarios; …   Wikipedia