Old man's beard a New Zealand

Gemun tsohon mutum (Clematis vitalba) tsiro ne mai mamayewa a cikin New Zealand wanda ke shafar bambancin halittu na asali. An ayyana shi a matsayin kwayoyin da ba a so a ƙarƙashin Dokar Biosecurity 1993 wanda ke nufin ba za a iya sayar da shi, rarrabawa ko yada shi ba.

 Yaduwa 
An gabatar da gemu na tsoho a cikin New Zealand a matsayin tsire-tsire masu ban sha'awa wani lokaci kafin 1922 kuma Ma'aikatar Karewa da sauran kungiyoyin gwamnati yanzu suna kashe miliyoyin daloli akan iko. Ana ɗaukar tsaba a kan ƙuƙwalwar ƙuƙwalwa kuma tana iya kasancewa a kan itacen inabi a cikin watanni na hunturu. Tsuntsaye suna iya tsiro a kan ƙasa mai wahala inda matakin haske ya fi 5% na cikakken hasken rana. Ya fi zama ruwan dare a waje da gandun daji marasa damuwa a kan gandun daji da gefen rafi da gibin gandun daji.

 Tasirin 
Gemun tsoho mai hawa ne wanda zai damfarar bishiyoyi da aka kafa kuma ya samar da wani tudu mai yawa wanda zai hana hasken rana isa ga kasa. Wannan yana shafar lafiyar ciyayi da ke akwai kuma yana hana tsiro duk wasu nau'in.

 Gudanarwa 
Ana amfani da hanyoyi daban-daban don sarrafa shukar da suka haɗa da kawar da injiniyoyi, maganin herbicides da sarrafa kwayoyin halitta. Ana iya yanke manyan kurangar inabi a matakin ƙasa kuma a shafa gel na maganin ciyawa don hana tsiro. Dole ne a cire kurangar inabin da ke biye tunda za su iya sake toho, kuma ana iya tumɓuke ƙananan ciyayi. An gwada masu kula da kwayoyin halitta.

Ma'aikatar kiyayewa ta gudanar da wani gangamin hidimar jama'a wanda ke nuna barazanar gemun tsoho a cikin shekarun 1980 ta hanyar amfani da masanin dabi'ar Burtaniya David Bellamy a matsayin mai magana da yawun. 

 Dubi kuma 

 Dabbobi masu mamayewa a New Zealand
 Biodiversity na New Zealand
 Yin lambu a New Zealand

 Bayanan da aka ambata 

 Ƙarin karantawa 

 Atkinson. I.A.E., (1984). Rarraba da yiwuwar gemu na tsoho, Clematis vitalba, a New Zealand. A cikin: barazanar Clematis vitalba shafi na 6-24. Jerin bayanai 11, NZ Dept. na Lands da Survey, Wellington. 


 West, C.J. (1992). Nazarin muhalli na Clematis vitalba  (gemu na tsoho) a New Zealand. Ma'aikatar Binciken Kimiyya da Masana'antu, Rahoton Shuke-shuke na Land Resources No. 736, DSIR, Wellington.

 Haɗin waje 

 Shigar da gemu na tsoho a kan Yarjejeniyar Tsire-tsire ta Kasa
 Gishiri na tsoho a Cibiyar Kula da Gidajen Royal New ZealandCibiyar Kula da Horticulture ta Royal New Zealand
 Tsohon gemu & New Zealand clematis a Majalisar Birnin Christchurch
 Clematis vitalba a cikin Gidan Bayanai na Duniya
 "Dole ne gemu na tsoho ya tafi" - sanarwar hidimar jama'a da David Bellamy ya gabatar

 Bayanan Majalisar Yankin

 Auckland 
 Bay of Plenty 
 Canterbury 
 Otago
 Waikato