Ib tsob ntoo muaj mob feem ntau qhia meej meej tias nws tsis ua zoo. Hauv phau ntawv qhia no koj yuav pom tias cov yam ntxwv twg ua rau tsob ntoo spruce puas thiab cov kab mob thiab kab tsuag yog lub luag haujlwm tseem ceeb.
Dab tsi yog tus yam ntxwv ntawm tus kab mob spruce?
Cov yam ntxwv ntawm tus kab mob spruce muaj xws li thinning ntxov ntxov, tsos nqaij daim tawv, yellowed koob thiab kev puas tsuaj saum toj kawg nkaus. Cov kab mob uas muaj xws li spruce koob xeb thiab spruce koob scab, thaum kab tsuag xws li bark beetle, loj xim av weevil thiab nun tuaj yeem tua tsob ntoo.
Yuav ua li cas thiaj paub txog tus mob spruce?
Plaub tus yam ntxwv ntawm tus kab mob spruce yog:
- Teeb pom kev zoo: Kev poob koob ntau heev tshwm sim ntxov ntxov, uas tuaj yeem ua rau lub cev. Rau kev sib piv: ib tug noj qab nyob zoo spruce khaws nws cov koob rau xya mus rau kaum xyoo.
- Disarray: Cov ntoo spruce zoo li disheveled. Nws cov ceg zoo li criss-crossed. Qhov no yog vim qee lub buds tsis sprout, thaum lwm cov tua loj hlob ntau zog.
- Yellowed koob: Cov koob spruce tshwm daj rau xim av.
- Top kev puas tsuaj: Spruce saum yog qhuav thiab tawg yooj yim.
Cov kab mob dab tsi tshwm sim hauv tsob ntoo spruce?
Ob kab mob hauv qab no tshwj xeeb yog pom ntau zaus hauv kev sib txuas nrog spruce:
- Spruce koob rust: Rust fungi los ntawm genus Chrysomyxa ua teeb meem rau spruce. Koj tuaj yeem paub txog kev kis kab mob los ntawm cov koob, uas yog xim daj thiab muaj qhov khoob, membranous spore txaj.
- Spruce koob scab: Nrog rau cov kab mob fungal no, cov koob ntawm spruce feem ntau pib tig xim av ua ntej lub cev elongated dub txiv hmab txiv ntoo siav nyob ib ncig ntawm lawv. Cov koob spruce scab feem ntau yuam cov kab mob spruce kom nyias nyias tawm.
Puas tsob ntoo spruce puas raug kab tsuag?
Yog lawm, cov spruce ua haujlwm zoo li cov nroj tsuag rau ntau yam kab, tshwj xeeb tshaj yog ntau hom kab kab. Tshwj xeeb tshaj yog qhov tseem ceeb ntawm no yogphau ntawv tshuab luam ntawv thiab cov engraver - nyob rau hauv sib piv rau lawv cov counterparts, lawv kuj muaj peev xwm tua thiab puas tseem ceeb, piv txwv li tsis tau yav tas los puas, spruce ntoo.
Cov kab no tseem ua phem rau kev noj qab haus huv ntawm spruce:
- Big brown weevil
- Nuj
- Spruce sawfly
- Sitka spruce vaj
- Green spruce kab laug sab
Tip
Xav kom zoo txog kev cawm dim
Txij thaum tus mob spruce feem ntau tsuas pom nws cov tsos mob nyob rau theem siab ntawm kev puas tsuaj, nws feem ntau nyuaj rau txuag nws. Nws raug nquahu kom txiav txim siab los ntawm rooj plaub seb puas muaj qee qhov kev ntsuas tseem ua tau zoo - ob qho tib si rau tsob ntoo cuam tshuam thiab hais txog ib puag ncig.
