Harlequin willows tsis yog tsuas yog yooj yim heev rau tu, tab sis kuj yog piv rau cov kab tsuag thiab kab mob. Vim li no, koj yuav tsum tau ua sai sai yog tias cov nplooj xim av dheev tshwm sim ntawm tsob ntoo lossis kev loj hlob ntawm cov tua pom tsis muaj zog. Ntawm no koj tuaj yeem nyeem qhov laj thawj yuav ua li cas thiab koj yuav ua li cas kom koj lub harlequin willow noj qab nyob zoo dua.
Cov kab mob dab tsi tuaj yeem tshwm sim hauv harlequin willows?
Harlequin willows feem ntau tiv taus cov kab mob, tab sis tuaj yeem tawm tsam los ntawm willow borer. Cov tsos mob muaj xws li noj cov cim nyob rau hauv ntoo, larvae ntawm nplooj, xim av nplooj thiab nplooj poob. Cov tshuaj tiv thaiv suav nrog kev txiav tawm radical, tshem tawm cov kab mob tua thiab tshuaj tiv thaiv.
Kev mob lossis kev saib xyuas yuam kev?
Harlequin willows tsis tshua muaj kab mob. Yog tias koj cov nroj tsuag tseem zoo li tsis noj qab haus huv, koj yuav tsum xub xyuas cov nroj tsuag rau kev saib xyuas tsis raug. Cov no ua rau cov tsos mob zoo sib xws xws li nplooj wilted.
- Puas yog koj lub harlequin willow tshav ntuj dhau lawm?
- Koj puas ywg dej tsob ntoo tsawg heev?
- Puas muaj cov as-ham txaus?
- Koj puas tau fertilize tsob ntoo?
- Puas muaj waterlogging nyob rau hauv lub thoob?
Vajtswv Txoj Kev Hlub
Tom qab koj tau kuaj xyuas cov harlequin willow rau qhov tshwm sim ntawm kev saib xyuas tsis raug thiab hloov kho rau hom kab mob uas tsim nyog, cov tsos mob yuav tsum sai sai no. Txwv tsis pub, koj yuav tsum xav tias koj muaj mob. Hauv qhov no, harlequin willow tshwj xeeb tshaj yog raug rau cov kab mob cab, tus kab mob willow.
Symptoms
- Cov qub teb qub chaw tshwj xeeb raug cuam tshuam
- Nyob hauv cov ntoo
- dub liab lossis dawb larvae nrog lub cev ntev txog kaum centimeters ntawm nplooj
- Brown nplooj
- Nkauj tawm tshiab
- Tus harlequin willow tuag nyob rau theem kawg
Measures
Tsuas yog radical pruning pab tawm tsam txhua yam kab mob. Txawm li cas los xij, koj yuav tsum tau ceev faj tsis txhob txiav rau hauv qhov chaw grafting ntawm lub cev. Txwv tsis pub, koj yuav tsum ua tib zoo tshem tawm tag nrho cov cuam tshuam tua. Tsis txhob ntshai txiav rov qab lub willow hnyav. Tsis tu ncua thinning ntawm lub crown kuj txhawb qhov xwm txheej ntawm lub teeb. Yog hais tias cov ceg ceg tawm ntau dhau ntawm no, harlequin willow kuj yuav muaj kev loj hlob tsis zoo. Tsob ntoo yuav sprouts sai sai no. Tsis txhob muab cov cuttings tso rau hauv lub compost. Tus kab mob tuaj yeem sib ntxiv ntawm no thiab kis mus rau harlequin willow dua xyoo tom ntej.
Kev tiv thaiv
Vim nws feem ntau lig dhau los ntawm lub sijhawm thawj cov tsos mob tshwm sim, kev tiv thaiv yog qhov kev kho mob zoo tshaj plaws uas koj tuaj yeem noj. Ib txwm tshuaj xyuas koj lub harlequin willow rau txhua qhov txawv txav kom paub txog tus kab mob tuaj yeem ntxov txaus.
Ceebtoom: Rau qee cov kab mob koj tsis tuaj yeem zam kev siv cov tshuaj fungicide. Hauv qhov no, koj yuav tsum tsuas yog siv cov tshuaj chemical thaum muaj xwm txheej ceev heev. Nug ua ntej ntawm cov khw muag khoom tshwj xeeb txog kev xaiv cov organic thiab ib puag ncig tus phooj ywg.
