Ib txoj kev tshawb fawb tshiab los ntawm North Carolina State University qhia tias cov kab mob pob kws pob ntseg tuaj yeem txhim kho ntau dua aerodynamic, ntev - nrug - lub dav hlau tis duab tom qab pub rau ntawm kev sib xyaw ntawm cov noob qoob loo hloov Bt thiab tsis yog -Bt pob kws. Cov kev tshawb pom no ua rau muaj kev txhawj xeeb tias cov noob sib xyaw tsim los pab tswj kev tiv thaiv yuav, qee zaum, pab txhawb kev sib kis ntawm cov kev tiv thaiv thoob plaws cheeb tsam qoob loo.
Cov kws tshawb nrhiav pom tias kab ntsig noj cov khoom noj sib xyaw ntawm cov tshuaj lom - tsim thiab tsis yog - cov pob kws tshuaj lom tau tsim cov kab npauj uas ntev dua, nqaim dua thiab ntau dua - zoo li cov profile ntawm lub dav hlau fighter. Raws li pab neeg no, cov yam ntxwv tis no tau ua kom nruj thiab txhim kho cov kab muaj peev xwm kom nyob twj ywm hauv huab cua hauv cua nrawm dua.
Dominic Reisig, tus kws tshaj lij thiab tus kws tshaj lij txuas ntxiv ntawm entomology ntawm NC State thiab co-tus kws sau ntawv ntawm txoj kev tshawb no tau hais tias "Cov kab noj cov tshuaj lom neeg sib xyaw thiab tsis yog- cov pob kws muaj kuab lom thiab muaj peev xwm taug kev hauv cov cua nrawm dua," said Dominic Reisig. "Cov kab no muaj peev xwm nce mus rau hauv cua thiab caij lawv mus ntev dua."
Txoj kev tshawb no piv cov npauj uas tau tsa rau plaub yam khoom noj: cov pob kws ntshiab tsis yog -Bt pob kws, pob kws ntshiab Bt nrog ob co toxins, ntshiab Bt pob kws nrog peb cov co toxins, thiab cov noob sib xyaw ntawm 80% peb-toxin Bt pob kws thiab 20% non-Bt pob kws. Moths tsa ntawm cov khoom noj sib xyaw ua ke pom qhov kev hloov pauv huab cua tshaj plaws tis-thiab ua li ntawd hauv ib tiam. Los ntawm qhov sib txawv, cov kab tau tsa ntawm ib qho ntawm peb cov khoom noj uas tsis muaj kev sib xyaw ua ke tsim tsis tshua muaj aerodynamic, tis tis ntau dua.
Pob kws earworm (Helicoverpa zea) yog ib qho kab mob kis thoob plaws hauv North America. Thaum cov qoob loo cog qoob loo feem ntau tswj tau, cov tsiaj kuj tseem ua rau cov taum pauv, txiv lws suav thiab paj rwb, ua rau nws txoj kev txav thiab cov qauv kev tiv thaiv ib qho kev txhawj xeeb tseem ceeb rau cov neeg ua liaj ua teb thoob plaws ntau qhov chaw. Vim tias cov kab mob pob ntseg tau tshwm sim hauv cov neeg coob ntawm cov pob kws hauv lub caij ntuj sov, txhua qhov kev hloov pauv hauv lawv lub peev xwm ya ncaj qha cuam tshuam txog kev tiv thaiv sai npaum li cas tuaj yeem tawg mus rau lwm cov qoob loo thiab cheeb tsam.
Reisig tau hais tias "Nws zoo nkaus li qhov kev tawm tsam tshwm sim sai dua thaum cov kab mob noj cov khoom sib xyaw no, tsim cov npauj ib tus neeg uas muaj ntau yam kev hloov pauv hloov," Reisig tau hais. "Qhov no yog ib qho pov thawj ntxiv tias kev sib xyaw Bt thiab tsis yog - cov paj noob hlis tshuaj lom yog qhov txaus ntshai heev rau kev tiv thaiv."
Txoj kev tshawb no ntxiv rau kev sib cav txog kev tshawb fawb tsis tu ncua txog cov noob- sib xyaw cov tswv yim chaw nkaum, uas sib xyaw Bt thiab tsis yog -Bt noob hauv ib lub hnab. Thaum cov khoom sib xyaw yog npaj los ua kom yooj yim rau kev ua raws li qhov chaw nkaum, qee cov kws tshawb fawb tau sib cav tias lawv tuaj yeem ua kom muaj zog tiv thaiv kab mob hauv qee hom kab tsuag.
Txoj haujlwm tau txais kev txhawb nqa los ntawm Biotechnology Risk Assessment Grant los ntawm US Department of Agriculture's National Institute of Food and Agriculture thiab los ntawm University Global Partnership Network.
Cov kws tshawb fawb hais tias kev ua haujlwm ntxiv tab tom ntsuas los ntsuas cov txiaj ntsig lom neeg ntxiv, suav nrog kev sib tw ua tiav, hauv cov kab mob pob ntseg raug rau cov pob kws sib xyaw.
