Feem ntau, magnolias tsis tshua muaj kab mob los yog lwm yam kab mob. Txawm li cas los xij, ob kab tshwj xeeb - kab kab thiab whiteflies - muaj ntau heev ntawm magnolias thiab tuaj yeem ua rau tsob ntoo tsis muaj zog mus tas li.
Dab tsi kab tsuag tua magnolias thiab koj tua lawv li cas?
Magnolia tuaj yeem tawm tsam los ntawm kab kab thiab kab laug sab, ob qho tib si uas nqus cov kua txiv hmab txiv ntoo thiab ua rau cov kua txiv hmab txiv ntoo. Kev tiv thaiv thiab kev tswj hwm suav nrog kev saib xyuas zoo, mulching, cog nasturtium thiab siv qej, nettle lossis dos decoction. Cov tshuaj tua kab kuj tseem siv tau los kho cov kab mob whiteflies.
Sale kab
Scale kab yog cov nroj tsuag thiab yog cov kab me me ntawm 0, 8 thiab 6 millimeters ntev, nyob ntawm hom. Mealybugs thiab mealybugs tshwj xeeb yog txuas lawv tus kheej mus rau cov tub ntxhais hluas tua nrog rau hauv qab ntawm nplooj thiab nplooj axils thiab nqus tawm cov kua txiv hmab txiv ntoo. Cov ntsiab lus qab zib siab ntawm cov zaub mov ua rau cov kua qab zib heev, uas yog hu ua honeydew. Qhov no nyob rau hauv lem magically attracts aphids thiab ntsaum - yog li sai li sai tau raws li koj pom loj tsub zuj zuj ntawm ntsaum ntawm koj magnolia, koj yuav tsum ua tej yam txawv. Lub greasy, dub txheej qhia tias honeydew yog colonized nrog sooty pwm, kab mob fungal. Mealybugs kis tau sai heev thiab nyuaj rau tswj.
Tiv thaiv thiab tua kab kab
Scale kab feem ntau tua cov nroj tsuag uas tsis muaj zog lossis tshaj-fertilized nrog nitrogen. Overwintering lub magnolia tsis raug - piv txwv li hauv chav tsev sov - kuj txhawb kev kis kab mob. Yog hais tias magnolia twb kis tau lawm, txau cov nroj tsuag cuam tshuam thiab tawm ob peb zaug nrog qej, nettle los yog dos decoction yuav pab tau. Loosen cov av nyob rau hauv tsob ntoo disc tsis hoeing los yog khawb tob. Mulch koj cov magnolia lossis cog nasturtiums hauv qab.
Whitefly
Tshwj xeeb, me me tshauv whitefly (Siphoninus phillyreae) feem ntau tawm tsam tsis muaj zog thiab / lossis dhau-fertilized magnolias. Kab, uas tsuas yog nyob ib ncig ntawm 1.5 millimeters loj, nteg nws cov qe ntau nyob rau hauv qab ntawm nplooj. Cov larvae uas hatch thiab cov neeg laus kuj pub cov kua txiv hmab txiv ntoo uas lawv nqus los ntawm nplooj ntawm magnolia. Lawv kuj excrete honeydew, uas nyob rau hauv lem txhawb kev tsim ntawm pwm thiab sooty fungi. Yog li ntawd, magnolia tawm ntau nplooj.
Sib ntaus sib tua whitefly
Tus kab dawb muaj ntau yam yeeb ncuab ntuj, suav nrog ladybirds thiab cab kab mob. Txawm li cas los xij, cov no nyuaj rau siv tshwj xeeb ntawm magnolias cog dawb hauv lub vaj, yog li cov tshuaj tua kab tshwj xeeb tuaj yeem pab.
Tips & Tricks
Yog tias koj cov magnolia tshem nws cov nplooj zoo li tsis muaj laj thawj, cov hauv paus kev puas tsuaj los ntawm qee yam larvae, grubs, kab ntsig lossis txawm tias voles kuj yog qhov ua rau. Cov kab dub weevil tshwj xeeb nyiam gnaw ntawm cov hauv paus hniav thiab nplooj ntawm magnolia; zoo li lawv cov nroj tsuag, lawv nyiam xoob thiab humus-nplua nuj av.
