almus america sent. crocks '

americi elm kaltiwar almus american 'sent. crocks 'haal hii mein (2008) ack chayan haye joe efton, minnesota key paas ack khet mein ugane vaale ack badey pedh seey pratiroopit kiya gayaa haye, jisane dutch elm roga (dee. dee.) key liye uchch pratirodh pradarshit kiya haye. 2009 mein yuu. aiss. patent, pee. pee. 20097, pradaan kiya gayaa thaa.
varnan.
aeye. crokes mein ack khula, faila huaa, phuldan key aakar kaa mukut hotaa haye. minnesota mein prajaati kii vriddhi darr tej aur vishisht haye. chhaal koo aam taur parr bhoore, sapaat-sheersh vaali katakon mein vibhajit kiya jaataa haye, joe motey taur parr heere key aakar key daraaron seey alag hotey hain aur joe chandwa mein anishchit roop seey pattern bunn jaate hain. chhoti shaakhaon kii chhaal aprabhedya daalon key saath chikani hoti haye. tahaniyaan patali, zigzag, braun, chamakdaar yaa thodi pubescent hoti hain; paarshv kaliyaan lagbhag 6 mimi lambi, andakar, teevra hoti hain lekin tej-nukili, chikani yaa cumm neechi, badam-bhoore rung kii naheen hoti hain. patte parnapaati, saral, vaikalpik, chhote-prishthiya, 2-crum, gahara haraa (aich. tii. aim. ell. vaastavik rung chart parr 006600 key nikatatam), 10-15 semi. (4-6 inch) lamba, 2.5-5 semi. (1-2 inch) chauda aur andakar key liye aaytaakaar, margine motey taur parr doguna searate, sheersh accuminate jabaki aadhar aamtaur parr asman hotaa haye; satahen oopar chamakdaar (chikani) yaa thodi khurdara (khurdara) hoti hain, aamtaur parr neeche, nasein vaikalpik, aarohi, samanantar aur sabse lambe serations key sheersh taka faili hoti hain. poorna appetalus pawan-paraagit phool vasantkal mein hotey hain, joe pattiyon key prakat honey seey pahale dikhaai dete hain, 3 yaa 4 key lambe-pedical vaale phosicals mein paida hotey hain. phal vasant mein paripakva honey vaalaa ack samara hotaa haye jaise hii patte failate hain; lagbhag 12 mimi (1⁄2 inch) lamba, andakar seey aaytaakaar-obet, sheersh parr gaharaai seey nokdar, chikani satahon key saath celiate kaa kinara.
afton mein mool pedh kaa dee thaa.bee.aich. 2008 mein maapa gayaa jaba 1.9 meater.
keat aur roga.
minnesota raajya vishvavidyalaya mein kiye gaye teekaakaran parikshanon dwara dutch elm roga key pratirodh kii pushti kii gaee haye. sthaapit kismon 'valley forge', 'miller park' aur jangli namoonon key saath pareekshan kiya gayaa, teenon kismein lakshanaatmak hoe gaeen lekin butch gaeen, jabaki jangli pedh marr gaye. haalaanki, teen kismon key apavitrata aur apavitrata key saapeksh pratishat kaa khulasa naheen kiya gayaa haye. samagr roop seey yeh prajaati elm peele rung key liye atisamvedansheel haye; ise vayask elm leaf beatle "zanthogeleruca luteola" dwara khilaane aur prajanan key liye bhee madhyam roop seey pasand kiya jaataa haye, aur sanyukt raajya mein japani beatle "popilia japonica" dwara khilaane key liye atyadhik pasand kiya jaataa haye. "yuu. americana "bhee verticillium wilt key liye sabhi elms mein sabse atisamvedansheel haye.
kheti karein.
iss pedh kaa prachaar aur vipanan newport, minnesota kii bellie nursory dwara kiya jaataa haye.
vyutpatti.
iss pedh kaa naam sent key naam parr rakhaa gayaa haye. crokes nadee ghaati.

