Printable Version     E-mail this page Educational Resources Outreach Activities National Agricultural Library Archives Publications Manuscripts (TEKTRAN) Software Datasets Freedom of Information Act and Privacy Act Reference Guide   You are here: Products & Services / TEKTRAN The ARS Manuscripts Database Search What is TEKTRAN Browse The Latest Search For: In: All Fields Title Author Abstract    Results: 72 publication requests found in 5.251 seconds. Non-Target Plant Use by a Weed Biocontrol Agent in Idaho: Host Expansion or Opportunistic Behavior? The weevil Larinus curtus Hochhuth (Coleoptera: Curculionidae) was first introduced into western United States from Greece for the biological control of yellow starthistle (YST), Centaurea solstitialis L. in 1992. Adults feed on YST pollen and flowers, laying eggs among flowers of YST capitula. Th... PREDICTING HOST PLANT SPECIFICITY OF A PROSPECTIVE BIOLOGICAL CONTROL AGENT: CERATAPION BASICORNE, A WEEVIL ATTACKING YELLOW STARTHISTLE Classical biological control of weeds involves the introduction of alien herbivores to control invasive alien plants. Although this strategy has the potential to reduce pest populations to acceptable levels over wide areas for long time periods, it also poses possible risks for adversely damaging n... BIOLOGICAL CONTROL OF YELLOW STARTHISTLE: NEW PROSPECTS FOR AN OLD PROBLEM. Yellow starthistle (YST) is an invasive alien weed from the Mediterranean region that infests about 20 million acres in the western U.S. This noxious weed displaces native plants, elevates the risk of wildfire, and diminishes the value of rangeland for grazing and recreational use. A classical biolo... FIELD HOST-RANGE TEST OF CERATAPION BASICORNE, A CANDIDATE FOR BIOLOGICAL CONTROL OF YELLOW STARTHISTLE (CENTAUREA SOLSITITIALIS) Ceratapion basicorne ("Ceba") is a weevil species found in southern Europe whose larvae feed inside the crown of yellow starthistle (Centaurea solstitialis ; "YST") rosettes. Host-range testing is being conducted to assess this insect's suitability for release in the USA as a biological control agen... LARVAL DENSITIES AND FIELD HOSTS OF CERATAPION BASICORNE (COLEOPTERA: APIONIDAE) AND AN ILLUSTRATED KEY TO THE ADULTS OF CERATAPION SPP. THAT FEED ON THISTLES IN THE EASTERN MEDITERRANEAN AND BLACK SEA REGIONS. Some members of the tribe Carduae are invasive weeds, including yellow starthistle, one of the most important weeds in the western USA. We examined the root crowns and stems of yellow starthistle growing in five countries [Armenia, Republic of Georgia, Greece, Russia, and Turkey] where yellow start... Natural history studies for the preliminary evaluation of a prospective biological control agent of yellow starthistle, Larinus filiformis (Coleoptera: Curculionidae). We conducted studies on the life history, behavior and ecology of Larinus filiformis (Coleoptera: Curculionidae) to determine if it is worthy of further evaluation as a classical biological control agent of yellow starthistle, Centaurea solstitialis (Asteraceae: Cardueae). Larinus filiformis occurs ... MOLECULAR IDENTIFICATION OF A NEW MEMBER OF THE CLOVER PROLIFERATION PHYTOPLASMA GROUP (16SRVI) ASSOCIATED WITH CENTAUREAE SOLSTITIALIS VIRESCENCE IN ITALY. In the United States, yellow starthistle (Centaurea solstitialis) is an annual invasive weed with Mediterranean origins. Malformed plants displaying witches'-broom, fasciations, abortion of buds and flower virescence symptoms were observed in central Italy. Attempts to transmit the causal agent fr... REMOVAL OF APPROVED BIOLOGICAL CONTROL CANDIDATES FROM A CONTAINMENT GREENHOUSE ENVIRONMENT Options are described for disinfesting or disinfecting leaf surfaces in order to remove Puccinia jaceae from a containment greenhouse. It is important to verify that the pathogen, a candidate for biological control of yellow starthistle, is not contaminated with other, crop pathogens also under stu... CERCOSPORELLA ACROPTILI AND CERCOSPORELLA CENTAUREICOLA SP. NOV. - POTENTIAL BIOLOGICAL CONTROL AGENTS OF RUSSIAN KNAPWEED AND YELLOW STARTHISTLE, RESPECTIVELY Russian knapweed (Acroptilon repens (L.)(DC.) and yellow starthistle (Centaurea solstitialis L.) are problematic invasive weeds in the western United States and California, and both weeds are targeted for biological control. Cercosporella acroptili (Bremer) U. Braun was identified as a possible con... STATUS OF PUCCINIA JACEAE IN 2004 BIOLOGICAL CONTROL OF YELLOW STARTHISTLE IN CALIFORNIA Yellow starthistle (YST, Centaurea solstitialis), an invasive weed infesting 5.8 million hectares in California, is a target of classical biological control. Development of Puccinia jaceae, an host specific rust fungus, has been pursued to complement insect agents already in place. Following an ex...       Last Modified: 02/09/2010 ARS Home | USDA.gov | Site Map | Policies and Links  FOIA | Accessibility Statement | Privacy Policy | Nondiscrimination Statement | Information Quality | USA.gov | White House