?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Root+Weevil+(Coleoptera%3A+Curculionidae)+and+Ground+Beetle+(Coleoptera%3A+Carabidae)+Immigration+into+Strawberry+Plots+Protected+by+Fence+or+Portable+Trench+Barriers+&rft.creator=Bomford%2C+Michael+K.&rft.creator=Vernon%2C+Robert+S.&rft.subject=Crop+health%2C+quality%2C+protection&rft.description=Physical+exclusion+shows+some+potential+as+a+novel+root+weevil+control+strategy%2C+but+barriers+to+root+weevil+immigration+may+also+exclude+beneficial+insects%2C+such+as+ground+beetles.+A+field+study+was+undertaken+in+1997+to+assess+the+impact+of+two+physical+barriers%C3%A2%C2%80%C2%94portable+plastic+trenches+and+aluminum+fences+with+Teflon+tape%C3%A2%C2%80%C2%94on+root+weevil+and+ground+beetle+immigration+into+plots+of+strawberry%2C+Fragaria+x+ananassa+(Duchesne).+Barypeithes+pellucidus+(Boheman)+and+Nemocestes+incomptus+(Horn)%2C+each+comprised+43%25+of+the+root+weevils+caught+at+the+site.+Most+(86%25)+of+the+ground+beetles+caught+in+control+plots+were+longer+than+1+cm%2C+the+width+of+the+gap+in+the+portable+trench+top.+Trenches+excluded+75+and+63%25+of+B.+pellucidus+and+N.+incomptus%2C+respectively%2C+without+significantly+reducing+immigration+of+large+(%3C1+cm)+ground+beetles.+Fences+excluded+65%2C+84%2C+and+99%25+of+B.+pellucidus%2C+N.+incomptus%2C+and+large+ground+beetles%2C+respectively.+Adding+diatomaceous+earth+to+trenches+did+not+increase+their+efficacy%2C+and+fences+without+Teflon+tape+excluded+ground+beetles+but+not+root+weevils.+The+reduction+in+the+population+of+root+weevils+and+other+strawberry+pests+caused+by+the+use+of+barriers+reduced+damage+to+strawberry+plant+leaves+and+increased+strawberry+plant+survival+relative+to+unprotected+control+plots.+Advantages+and+disadvantages+of+these+physical+control+tools+are+discussed+with+a+view+to+creating+superior+tools+for+root+weevil+exclusion%2C+compatible+with+an+integrated+pest+management+approach.+Portable+trenches+may+offer+a+means+of+selectively+excluding+root+weevils+but+not+ground+beetles.+&rft.publisher=Entomological+Society+of+America&rft.date=2005-08&rft.type=Journal+paper&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Forgprints.org%2F13317%2F2%2F13317.pdf&rft.identifier=Bomford%2C+Michael+K.+and+Vernon%2C+Robert+S.+(2005)+Root+Weevil+(Coleoptera%3A+Curculionidae)+and+Ground+Beetle+(Coleoptera%3A+Carabidae)+Immigration+into+Strawberry+Plots+Protected+by+Fence+or+Portable+Trench+Barriers.+Environmental+Entomology%2C+34+(4)%2C+pp.+844-849.&rft.relation=http%3A%2F%2Forgprints.org%2F13317%2F