ANNUAL REPORT OF INTRODUCED BENEFICIAL ORGANISMS RELEASED IN THE UNITED STATES AND TERRITORIES - 1982 



SECTION II - INTRODUCED WEED CONTROL AGENTS RELEASED IN U.S. AND TERRITORIES - 1982 



PART B - Target Host Arranged Alphabetically by Class, Order, Family, Genus, Species with Alphabetical List of Introduced 

 Beneficial Species Released Against It; Target Host Arranged Alphabetically by Coimnon Name 



Class : 



Liliopsida 



Order of Host : Liliales 



Family of Host : Pontederiaceae 



Host Genus, species, author: Eichhornia crassipes (C.Mart . ) Solms-Laub. 

 Common name of host : waterhyacinth 



Species Released: Neochetina bruchi 



Class: 



Magnoliopsida 



Order of Host : Asterales 



Family of Host : Asteraceae 



Host Genus, species, author: Carduus acanthoides Linnaeus 

 Common name of host : plimieless thistle 

 Species Released: Rhinocyllus conicus 



Host Genus, species, author: Carduus nutans Linnaeus 

 Common name of host : musk thistle 



Species Released: Rhinocyllus conicus 



Host Genus, species, author: Centaurea diffusa Lam. 

 Common name of host : diffuse knapweed 



Species Released: Urophora quadrifasciata 



Host Genus, species, author: Centaurea maculosa Lam. 

 Common name of host : spotted knapweed 



Species Released: Metzneria paucipunctella 

 Urophora quadrifasciata 



Host Genus, species, author: Chondrilla jiincea Linnaeus 

 Ccmmon name of host : rush skeletonweed 

 Species Released: Aceria chondrillae 



Host Genus, species, author: Cirsium arvense (L.) Scop. 

 Common name of host : Canada thistle 

 Species Released: Altica carduorum 

 Urophora cardui 



Host Genus, species, author: Cirsium vulgare (Savi) Tenore 

 Common name of host: bull thistle 



Species Released: Trichosirocalus horridus 



Host Genus, species, author: Senecio jacobaea Linnaeus 

 Coimnon name of host : tansy ragwort 



Species Released: Botanophila seneciella 



Trichosirocalus horridus 



Trichosirocalus horridus 



Urophora affinis 



Hadroplontus litura 



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