Yog tias cov txheej txheej dawb kis ntawm cacti, lawv cov tsos thiab qhov tseem ceeb yog sib npaug. Koj tuaj yeem pom ob qho laj thawj ntawm qhov teeb meem ntawm no. Siv peb cov lus qhia rau kev sib ntaus sib tua zoo nrog cov tshuaj ntsuab.
Dab tsi ua rau cov quav hniav dawb ntawm cacti thiab koj tuaj yeem tawm tsam nws li cas?
Ib txheej dawb ntawm cacti tuaj yeem tshwm sim los ntawm powdery mildew, kab mob fungal, lossis mealybugs, kab tsuag. Mildew tuaj yeem tswj tau nrog dej mis lossis cov hmoov pob zeb thawj, thaum cov kab mob tuaj yeem kho nrog cawv, ntsuj plig lossis cov xab npum mos.
Cause 1: Mildew
Powdery, txheej dawb ntawm ntsuab epidermis qhia txog cov kab mob fungal mildew. Raws li tus kab mob loj tuaj, cov kab mob ntawm cov nroj tsuag tig xim av thiab tuag. Yuav ua li cas kom raug tam sim no:
- Txiav cov nroj tsuag uas raug mob hnyav thiab muab pov tseg hauv tsev pov tseg
- Kho cov cactus nrog kev sib tov ntawm 1/8 liter ntawm mis nyuj tshiab thiab 1 liter dej tsis muaj txiv qaub
- Txau cov kua mis txhua 2 mus rau 3 hnub
- Xwb, plua plav cov nroj tsuag cuam tshuam nrog thawj pob zeb hmoov
Rau cacti hauv tsev cog khoom, tau txais kev pab los ntawm lub nceeg vaj tsiaj. Mushroom ladybirds (Psyllobora vigintiduopunctata), kaum rau-spotted ladybirds (Halyzia sedecimguttata) thiab squirrel hoverflies (Myathropa florea) enthusiastically xauj lub nceb nyom.
Cause No 2: Mealybugs
Yog tias cov txheej txheej zoo li cov paj rwb me me, cov paj dawb dawb, koj tau ntsib nrog cov kab tsuag. Cov no yog 1-5 hli me me kab kab thiab lawv cov larvae. Cov kab mob tiv thaiv lawv tus kheej nrog lub plhaub waxy thiab nqus cov kua txiv hmab txiv ntoo. Thaum sib cuag, muaj roj, dawb cov quav hniav tsim, yog li cov kab tsuag kuj hu ua mealybugs. Nov yog qhov koj ua rau tus kab mob plague:
- Dab ib tus neeg kis kab mob nrog cawv-soaked paj rwb swabs
- Txau thaj chaw loj nrog cawv lossis txiv qaub tshuaj
- Xwb, sib ntaus nrog 1 liter dej thiab 15 ml ntawm ib tug mos xab npum thiab plig
Kev siv cov kab muaj txiaj ntsig kuj tau ua pov thawj tiav hauv kev sib ntaus sib tua kab mob. Qhov no tshwj xeeb tshaj yog siv rau cov chaw xws li tsev cog khoom, hothouse lossis lub vaj lub caij ntuj no. Australian ladybird (Cryptolaemus montrouzieri) muaj ntshauv nyob rau saum nws cov ntawv qhia zaub mov. Cov kab uas muaj txiaj ntsig zoo yog bred hauv cov liaj teb tshwj xeeb thiab tseem tuaj yeem yuav muaj.
Tip
Yog tias txheej txheej ntawm cacti zoo li greyish dua li dawb, koj tab tom cuam tshuam nrog grey pwm (Borytis). Cov kab mob fungal no feem ntau tshwm sim ntawm cov suab puam cacti uas muab tso rau hauv qhov chaw ntub dej. Nyob rau theem pib, kev hloov tam sim ntawm qhov chaw mus rau qhov chaw tshav ntuj, huab cua qhuav tuaj yeem pab tau. Txwv tsis pub, koj yuav tsis tuaj yeem zam kev pov tseg ntawm cov cactus cuam tshuam.
