suav tsis txheeb me tsiaj cavort hauv vaj av. Qee hom tsiaj zoo sib xws. Tsis tshua muaj leej twg paub ncaj nraim qhov lawv yuav nthuav tawm thaum khawb. Nws yog ib qho tseem ceeb kom tsis txhob muaj kab mob thiab kab tsuag sib nrug. Raws li feem ntau cov ntaub ntawv, qhov sib txawv nyob rau hauv cov ntsiab lus. Rose beetle larvae, piv txwv li, tuaj yeem yooj yim tsis meej pem nrog lwm cov grubs. Yuav qhia kom meej li cas?
Ntxhais Rose Beetle
Tus kab kab zoo nkauj ntawm tsev neeg kab laug sab tuaj yeem pom buzzing thiab fluttering hauv lub vaj txij lub Plaub Hlis txog Lub Kaum Hli. Nyob rau hauv lub teb chaws no nws yog ib tug ntau sawv kab, hu ua Cetonia aurata. Cov kab yoov mus rau ntau cov paj ntoo thiab pub rau lawv cov nectar thiab paj ntoos. Nws zoo li tshwj xeeb tshaj yog nyiam cov paj ntoo, uas tau pom hauv lub npe.
- tuaj yeem pom tshwj xeeb tshaj yog hnub sov
- feem ntau thaum noj su
- hlub rose petals thiab umbelliferous nroj tsuag
- kab txaij ci ntsuab ntsuab saum toj
- lub hauv qab yog tooj liab liab
- nws yog kwv yees li 14 txog 20 mm ntev
Rab kab larvae hatch los ntawm nws nteg qe. Beetles thiab larvae tsis ua kev puas tsuaj ntau rau peb cov nroj tsuag. Ntawm qhov tsis sib xws, raws li paj pollinators thiab humus tsim, lawv yog ib feem tseem ceeb ntawm ecosystem. Xyoo 2000, cov kab rose txawm raug xaiv los ua kab ntawm lub xyoo.
Note:
Rose beetles yog hom kev tiv thaiv thiab yuav tsum tsis txhob tua. Yog leej twg raug tus lej loj tuaj sau tau thiab tso rau lwm qhov.
Rose beetle larvae in compost
Tus kab mob rose larvae nyob zais hauv av. Thaum lub sij hawm tag nrho lawv txoj kev loj hlob ntawm ob mus rau peb xyoos, lawv tsis tuaj yeem tuaj ntawm lub ntiaj teb. Yog li ntawd peb tsuas ntsib lawv thaum peb "nkag mus" lawv thaj chaw ntawm lub neej. Nyob rau hauv cov qus, cov larvae feem ntau nyob rau hauv rotten seem ntawm ntoo qhib, poplar thiab willow ntoo. Nyob rau hauv lub vaj tsev, cov poj niam rose beetles nyiam nteg lawv cov qe rau hauv lub compost heap.
- Larvae pub rau cov nroj tsuag tuag
- lawv tau ntev thiab tuab
- molts ntau zaus
- lawv excretions pab rau humus tsim
- Pupated larvae kuj tuaj yeem tshawb pom
- txawm tus kab mob nyob hauv nws ib pliag tom qab hatching
Cov kab uas muaj txiaj ntsig zoo no thaum pib tseem tsis pom rau peb. Tsuas yog thaum cov khib nyiab txav mus ua me me dawb maggots tshwm. Txawm li cas los xij, lo lus no tsis yog qhov tseeb hauv kev sib txuas nrog rose beetle larvae. Lawv raug xa mus raws li grubs. Ib yam li cov larvae ntawm lwm hom kab cab kab. Piv txwv li, cov cockchafers, June beetles thiab rhinoceros beetles.
Tshuaj ntsuab kab mob
Ntxhais kab npis larvae zoo ib yam. Tab sis muaj qee qhov nta uas ua rau nws yooj yim kom paub qhov txawv ntawm lawv. Cov larvae loj loj nyob rau hauv compost feem ntau yog los ntawm cov kab roses los yog rhinoceros beetles. Ob hom yog cov kab uas muaj txiaj ntsig zoo vim tias lawv pub rau cov khoom cog tuag. Ob hom sib txawv, yog li koj tuaj yeem paub lawv yooj yim. Ntawm no yog cov yam ntxwv zoo uas koj tuaj yeem siv los txheeb xyuas tus kab mob rose beetle:
- kwv yees. 4-5 cm ntev
- dawb nrog greyish shimmer
- ntsuab taub hau capsule
- lub cev muaj zog
- ntau plaub hau daj
- lub qab kawg yog tuab dua li pem hauv ntej
- muaj cov xim liab liab me me ntawm ob sab
- peb luv, tsis zoo tsim khub ntawm sternums
- tus larva yog nkhaus hauv C duab
Txoj kev tsis meej pem nrog lwm tus larvae
Lub larvae ntawm rose beetles, cockchafers thiab June beetles yog zoo sib xws nyob rau hauv tsos. Tab sis thaum rose beetles yog kab muaj txiaj ntsig, lwm ob hom yog kab tsuag. Ib lub tswv yim yuav pab koj sib txawv ntawm lawv. Muab cov grub koj pom ntawm ib qho chaw du thiab saib nws. Rose beetle larva yuav ncaj thiab nkag mus zoo li kab ntsig. Ntawm nws nraub qaum nrog nws ob txhais ceg lo. Tej zaum beetle larvae thiab June beetle larvae, ntawm qhov tod tes, yuav khoov los yog pw ntawm lawv lub plab hauv kev sim kom khiav tawm. Koj tseem tuaj yeem paub cov kab tsuag vim lawv tuab tuab thoob plaws hauv lawv lub cev.
Tip:
Yog hais tias koj tau txheeb xyuas cov kab dawb li cov kab kab kab larvae, npog lawv tam sim nrog av dua. Lawv ntshai qhov kaj. Lawv qhuav sai sai hauv lub hnub thiab ntsws.
Pupated larvae
Nyob rau hauv lub compost koj kuj tuaj yeem hla tus kab kab larva uas twb pupated lawm. Kev txiav txim siab tsis yooj yim:
- tus larva feem ntau pupates nyob rau lub caij nplooj zeeg
- lub qe zoo li lub qe
- txog 2 cm ntev
- kwv yees 1 cm dav ntawm qhov tuab tshaj plaws
- Muaj ntau lub plhaub nyias nyob ib ncig ntawm cocoon
- ua los ntawm cov xuab zeb, lub ntiaj teb thiab cov ntoo me me
Tus kab no tawm ob mus rau peb lub lis piam tom qab pupation. Tab sis nws nyob hauv av mus txog lub caij nplooj ntoo hlav.
Grubs in paj pots
Koj tuaj yeem ntsib cov kab kab larvae tsis yog nyob ze cov khoom cog tuag. Txawm tias thaum repotting paj lossis khawb hauv vaj av, ib lossis ntau qhov qauv tuaj yeem tshwm sim. Yog li ntawd, koj yuav tsum ua tib zoo saib cov larvae thiab txheeb xyuas lawv raws li lawv cov yam ntxwv. Thaum cov kab tsuag yuav tsum raug rhuav tshem, lwm yam tseem ceeb ntawm rose beetle larvae yuav tsum tau hloov chaw. Nws yog zoo nyob rau hauv lub compost. Vim yog tias nws tsis muaj cov khoom cog tuag, nws tseem yuav nibble ntawm cov cag ntoo nyob. Qhov no yog tib txoj kev uas nws muaj sia nyob.
Tip:
Sift koj compost ua ntej siv. Qhov no txhais tau hais tias rose beetle grubs tsis tuaj yeem nyob ze rau cov nroj tsuag muaj sia. Hloov chaw, koj tuaj yeem muab lawv rov qab rau hauv cov pob zeb hauv av uas lawv tuaj yeem ua lawv txoj haujlwm tseem ceeb.
