Baƙi mai aiki: daga ina Colorado dankalin turawa ƙwaro ya fito daga Rasha
Voracious Colorado beetles a kan gadaje dankalin turawa sun riga ya zama ruwan dare gama gari. Kwaro mai haɗari yana jin daɗi ba kawai a Turai ba, har ma a cikin ƙasa na tsoffin ƙasashen CIS. Saboda haka, yawancin matasa sun yi imanin cewa Colorado ya kasance yana zaune a wannan yanki, amma a gaskiya shi ɗan gudun hijira ne daga Arewacin Amirka.
Abubuwa
Tarihin gano ƙwayar dankalin turawa na Colorado
Ƙwaƙwalwar dankalin turawa ta Colorado ɗan ƙaura ce daga Amurka.
Ƙwaƙwalwar dankalin turawa ta Colorado ta fito ne daga Dutsen Rocky. A cikin 1824, masanin ilimin halitta Thomas Say ya fara gano wannan ƙwaro mai tagulla. A wancan zamani, kwaro mai haɗari na gaba bai ma yi zargin kasancewar dankali ba kuma abincinsa ya ƙunshi tsire-tsire na daji na dangin nightshade.
Wannan nau'in ya sami sanannen sunansa shekaru da yawa bayan haka. A lokacin, ya riga ya sauko daga tsaunuka kuma ya tashi don ya ci sababbin yankuna. A cikin 1855, ƙwayar dankalin turawa ta Colorado ta ɗanɗana dankali a cikin filayen Nebraska, kuma a cikin 1859 ya haifar da mummunar lalacewa ga shukar Colorado.
Kwaro mai laushi ya fara motsawa cikin sauri zuwa arewa kuma an sanya darajar kwaro mai haɗari da sunan girman kai na ƙwayar dankalin turawa na Colorado.
Yaya Colorado dankalin turawa ƙwaro ya isa Turai?
Bayan Colorado dankalin turawa ƙwaro ya mamaye yawancin Arewacin Amurka, ya ci gaba da ƙaura zuwa sababbin nahiyoyi.
Colorado irin ƙwaro.
Tun da, a ƙarshen karni na 19, yawancin jiragen ruwa na kasuwanci sun riga sun yi tafiya a cikin Tekun Atlantika, ba shi da wahala ga kwaro ya isa Turai.
Ƙasar farko da ta fuskanci matsalar "tsitsi" ita ce Jamus. A cikin 1876-1877, an gano ƙwayar dankalin turawa ta Colorado kusa da birnin Leipzig. Bayan haka, an lura da kwaro a wasu ƙasashe, amma adadin mazauna ƙanana ne kuma manoma na gida sun yi nasarar magance su.
Yadda ƙwayar dankalin turawa ta Colorado ta ƙare a Rasha
Tafiya na Colorado dankalin turawa, irin ƙwaro a Turai.
Kwarin ya yadu a lokacin yakin duniya na farko kuma a karshen shekarun 1940 ya zauna a kasashen gabashin Turai. A cikin ƙasa na Rasha, irin ƙwaro ya fara bayyana a 1853. Yankin farko na kasar wanda mamayewar kwari ya shafa shine yankin Kaliningrad.
A tsakiyar 70s, Colorado dankalin turawa, irin ƙwaro ya riga ya yadu a cikin Ukraine da Belarus. A lokacin fari, bambaro daga filayen Ukrainian an shigo da shi sosai zuwa Kudancin Urals, kuma tare da shi babban adadin kwaro mai tsiro ya shiga cikin Rasha.
Bayan da ya tabbatar da kansa a cikin Urals, ƙwayar dankalin turawa ta Colorado ta fara mamaye sabbin yankuna kuma ta ci gaba, kuma a farkon karni na 21 ya isa yankin Gabas mai Nisa.
Tun daga wannan lokacin, ana ci gaba da yaƙar kwari a duk faɗin ƙasar.
ƙarshe
Ko da ƙasa da shekaru 200 da suka wuce, ƙwayar dankalin turawa ta Colorado ba matsala ba ce kuma mutane ba su san game da wanzuwarsa ba, amma kamar yadda ka sani, babu wani abu a duniya da ke dawwama. Akwai hujjoji da yawa akan haka, kuma ɗaya daga cikinsu ita ce hanyar ɗan ƙaramin ƙwaro, wanda ya mamaye yankuna masu yawa kuma ya zama ɗaya daga cikin kwari mafi haɗari a duniya.
