11![Biological agents will not eradicate the weed population because they depend on the weed for their life cycle. Insect species lay their eggs on these weeds and progress through their development while feeding on these we Biological agents will not eradicate the weed population because they depend on the weed for their life cycle. Insect species lay their eggs on these weeds and progress through their development while feeding on these we](https://www.pdfsearch.io/img/f8f158bb022f0ac22be74be1ff3d2503.jpg) | Add to Reading ListSource URL: www.okanogancounty.orgLanguage: English - Date: 2011-04-06 00:25:08
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12![Centaurea biebersteinii & nigra SP O T T E D ENGLISH NAMES SCIENTIFIC NAME Centaurea biebersteinii & nigra SP O T T E D ENGLISH NAMES SCIENTIFIC NAME](https://www.pdfsearch.io/img/ac5cc353520011fec63411c20a66fd03.jpg) | Add to Reading ListSource URL: www.goert.caLanguage: English - Date: 2012-06-26 19:23:15
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13![A Guide to Weeds in British Columbia SPOTTED DISTRIBUTION A Guide to Weeds in British Columbia SPOTTED DISTRIBUTION](https://www.pdfsearch.io/img/00e42f7caaa6ec02b4e1cc9d10a0feb1.jpg) | Add to Reading ListSource URL: www.weedsbc.caLanguage: English - Date: 2002-02-08 12:53:16
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14![Biological agents will not eradicate the weed population because they depend on the weed for their life cycle. Insect species lay their eggs on these weeds and progress through their development while feeding on these we Biological agents will not eradicate the weed population because they depend on the weed for their life cycle. Insect species lay their eggs on these weeds and progress through their development while feeding on these we](https://www.pdfsearch.io/img/5fdf40f947f04a29af2135c41aa6a296.jpg) | Add to Reading ListSource URL: okanogancounty.orgLanguage: English - Date: 2011-04-06 00:25:08
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15![Biology and Biological Control of Knapweed Biology and Biological Control of Knapweed](https://www.pdfsearch.io/img/29439a17518cf9cc6fe820e8b2e8e65f.jpg) | Add to Reading ListSource URL: www.cals.uidaho.eduLanguage: English - Date: 2010-03-16 19:32:00
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16![Diffuse and Spotted Knapweed Fact Sheet No. [removed]Natu ral Resources Series| Range by K.G. Beck* Diffuse and Spotted Knapweed Fact Sheet No. [removed]Natu ral Resources Series| Range by K.G. Beck*](https://www.pdfsearch.io/img/98a713d3b55c80fc556719922f1dbce4.jpg) | Add to Reading ListSource URL: www.ext.colostate.eduLanguage: English - Date: 2014-02-27 16:12:20
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17![Brown Knapweed (Centaurea jacea L.) Family: Asteraceae (Compositae) Description: Brown knapweed is a perennial plant with a woody root crown that grows 20 to 48 inches tall, Brown Knapweed (Centaurea jacea L.) Family: Asteraceae (Compositae) Description: Brown knapweed is a perennial plant with a woody root crown that grows 20 to 48 inches tall,](https://www.pdfsearch.io/img/c677f06e75377b2ebb0bbec506b3fe38.jpg) | Add to Reading ListSource URL: www.na.fs.fed.usLanguage: English - Date: 2005-01-29 08:35:02
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18![SPOTTED KNAPWEED: Options for control Spotted knapweed, a class-B non-designate noxious weed in Lincoln County, Washington (Centaurea biebersteinii) is of the Asteraceae family. Spotted knapweed is a native of central Eu SPOTTED KNAPWEED: Options for control Spotted knapweed, a class-B non-designate noxious weed in Lincoln County, Washington (Centaurea biebersteinii) is of the Asteraceae family. Spotted knapweed is a native of central Eu](https://www.pdfsearch.io/img/aa6ecbd0ff85e3db5be6f3f18876da3c.jpg) | Add to Reading ListSource URL: www.co.lincoln.wa.usLanguage: English - Date: 2009-10-24 00:35:19
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19![Microsoft Word - SPOTTED KNAPWEED-r.doc Microsoft Word - SPOTTED KNAPWEED-r.doc](https://www.pdfsearch.io/img/af8d2f58bf101705fdd0aa8fd1f68593.jpg) | Add to Reading ListSource URL: www.nd.govLanguage: English - Date: 2011-09-14 16:06:40
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20![PNW 422-E • Reprinted July[removed]Squarrose Knapweed Centaurea virgata Lam. var. squarrosa (Boiss.) Gugler C. Roché and L.C. Burrill PNW 422-E • Reprinted July[removed]Squarrose Knapweed Centaurea virgata Lam. var. squarrosa (Boiss.) Gugler C. Roché and L.C. Burrill](https://www.pdfsearch.io/img/6caa99493b28b053531eb02bad52e8ad.jpg) | Add to Reading ListSource URL: ir.library.oregonstate.eduLanguage: English - Date: 2012-09-10 11:15:15
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