commiss decis octob emerg measur prevent spread commun diabrotica virgifera le cont notifi document number ec commiss european commun regard treati establish european commun regard council direct ec protect measur introduct commun organ harm plant plant product spread commun amend commiss direct ec articl sentenc thereof franc austria inform member state commiss outbreak diabrotica virgifera le cont hereinaft refer quot organ quot time respect territori measur control monitor conduct area itali infest organ area maiz monocultur potenti introduct place organ airport custom station appear erad measur veneto region prove effect organ popul level organ decreas lombardia piemont adult organ captur provinc whilst outbreak detect time friuli venezia giulia region recent commun research studi establish potenti organ commun demonstr main factor establish trophic climat condit present commun studi appar organ damag effect signific plant health concern commun maiz product potenti econom loss potenti increas relianc insecticid challeng find altern crop maiz rotat circl direct ec prohibit introduct spread commun organ commun measur outbreak record member state free area organ detect earli stage develop popul measur defin aim erad organ reason period time measur includ gener survei presenc organ member state measur appli control spread commun organ delimit demarc zone movement host plant soil machineri crop rotat demarc zone result measur continu assess subsequ measur consid light result assess measur provid decis accord opinion stand committe plant health adopt decis articl member state ensur suspect occurr confirm presenc diabrotica virgifera le cont hereinaft refer quot organ quot report respons offici bodi mean direct ec articl member state year conduct offici survei presenc organ area territori maiz grown prejudic articl direct ec result survei provid paragraph notifi commiss member state decemb year articl result survei refer articl confirm presenc organ area previous free organ member state defin demarc zone consist part focu zone field organ captur km radiu safeti zone focu zone km radiu addit member state defin buffer zone focu safeti zone exact delimit area zone refer paragraph base sound scientif principl biologi organ level infest product system host plant organ member state concern presenc organ confirm point origin point captur organ situat focu zone delimit demarc zone chang captur organ detect year year captur demarc zone ceas exist erad measur refer articl member state inform member state commiss area zone refer paragraph provid suitabl scale map articl part demarc zone member state monitor presenc organ sex pheromon trap arrang grid check regularli type number trap method trap account local circumst characterist demarc zone addit provis paragraph member state ensur focu zone movement fresh plant zea mai fresh part thereof zone date year occurr harm organ set basi biologi organ level captur organ climat condit prevail relev member state ensur spread organ movement soil maiz field insid focu zone focu zone maiz harvest date year occurr organ set basi biologi organ level captur organ climat condit prevail relev member state ensur spread organ maiz field crop rotat take place period consecut year maiz grown maiz cultiv year year captur entir focu zone treatment maiz field end oviposit period carri organ year occurr year agricultur machineri maiz field clean soil debri leav zone volunt maiz plant remov maiz field addit provis paragraph member state ensur safeti zone crop rotat take place period consecut year maiz grown treatment maiz field carri organ year occurr year addit provis paragraph member state lai buffer zone crop rotat take place period consecut year maiz grown articl member state provid commiss member state decemb year inform area zone refer articl date set justif thereof refer articl treatment carri refer articl articl articl member state adapt decemb latest measur adopt view prevent spread organ manner measur compli decis forthwith inform commiss adapt measur articl commiss review oper decis februari februari subsequ year articl decis address member state brussel octob commiss david byrn member commiss oj oj