Nordmann fir tsis yog ib haiv neeg conifer. Hauv lub tebchaws no nws yuav tsum tau ua raws li cov kev ua neej sib txawv uas yuav ua rau muaj kev cuam tshuam rau nws qhov tseem ceeb. Yog li lo lus nug yog seb qhov no ua rau lawv yooj yim raug rau cov kab tsuag hauv zos.
Ob hom kab tsuag tshwm sim ntau zaus
Nyob hauv nws haiv neeg Caucasus, Nordmann fir tsis tshua muaj kab mob kab tsuag. Tej zaum nws tau hloov kho kom zoo rau nws qhov chaw nyob hauv ntau pua xyoo lossis ntau txhiab xyoo thiab txhim kho kev ua haujlwm zoo. Tej yam tab tom nrhiav phem rau lawv hauv peb lub latitudes. Cov kab kab hauv qab no tuaj yeem tsim kev phom sij tshwj xeeb:
- Small Pine bark beetle
- Pine tua aphid
Small Pine bark beetle
Cov kab kab tawv nqaij zoo li zoo dua thaum Nordmann fir tau muab tso rau hauv qhov chaw tshav ntuj heev. Cov kab no kuj nyiam cov qauv hluas thiab tsis muaj zog. Nyob rau hauv lub xyoo thaum lawv cov pejxeem loj, txawm tias cov ntoo noj qab haus huv tsis tau dim. Lawv ua kom cov tawv ntoo ntawm tsob ntoo kom nteg lawv cov qe hauv qab. Yuav ua li cas paub cov kab tsuag:
- Lub cev yog 1 txog 2 mm ntev thiab oval
- dub xim av
- Cov tis muaj cov nplai thiab plaub hau
- Cov qe yog 0.5 txog 0.8 mm ntev
- Cov larvae hatched yog dawb thiab 2 mus rau 3 mm ntev
Koj tseem tuaj yeem paub txog kev kis kab mob thaum tua thiab cov ceg tig liab, suav nrog cov yas hauv qee kis. Yog hais tias tus kab mob loj tuaj, cov tawv ntoo kuj yuav tev tawm hauv qhov chaw. Nws tsis tuaj yeem tawm tsam cov kab kab ncaj qha, uas yog vim li cas cov ntoo cuam tshuam feem ntau yuav tsum tau muab tshem tawm.
Pine tua aphid
Lub grey-ntsuab tua xiav kuj nyiam hnub ci Nordmann firs. Ib qho kab mob tuaj yeem pom tau yooj yim los ntawm cov quav ciab dawb uas cov kab tsuag tawm tom qab ntawm cov tawv ntoo ntawm tsob ntoo fir. Nws yog ib qho tseem ceeb uas koj nrhiav tau txoj haujlwm ntawm cov ntshauv thaum ntxov, vim tias qhov xwm txheej phem tshaj plaws nws tuaj yeem ua rau tsob ntoo fir ua rau nws tuag.
Siv cov tshuaj tiv thaiv ib puag ncig tiv thaiv cov ntshauv thaum lub caij ntuj no, piv txwv li cov roj rapeseed.
Tip
Tsis txhob cog cov Nordmann fir hauv nroog, vim cov kab thiab kab mob tsis yog ib qho kev hem thawj rau lawv. Cov pa phem kuj tiv thaiv kev loj hlob zoo vim tsob ntoo tsis tuaj yeem hloov mus rau nws.
