Cov kab tsuag twg Bacillus thuringiensis tswj tau?

Bacillus thuringiensis, tseem hu ua Bacillus thuringiensis var. popilliae, yog ib hom kab mob zoo li tus pas. Thaum nws tsim tawm, ib kawg tsim ua ib lub noob, yog li ua ib hom kab mob tsim cov noob, thaum lwm qhov kawg tsim cov protein siv lead ua. Cov protein siv lead ua no muaj cov nyhuv tua kab zoo heev, tshwj xeeb tshaj yog rau ntau dua 100 hom kab tsuag lepidopteran xws li kab laug sab paj rwb, npauj npaim me me, npauj npaim diamondback, kab laug sab mov, kab laug sab silkworm, kab laug sab ntoo thuv, kab laug sab luam yeeb, kab laug sab pob kws, kab laug sab paj rwb, kab laug sab mov, kab laug sab nyom, thiab kab laug sab hauv av. Nws yog ib hom tshuaj tua kab mob uas tau raug tshawb fawb tob tshaj plaws, kev loj hlob sai tshaj plaws, thiab kev siv dav tshaj plaws hauv xyoo tas los no. Vim nws tsis muaj tshuaj lom, tsis ua rau ib puag ncig puas tsuaj, thiab muaj cov nyhuv tua kab zoo heev, nws tau txais kev nyiam los ntawm cov neeg ua liaj ua teb.

I. Cov yam ntxwv tseem ceeb ntawmBacillus thuringiensis

1. Ntau yam ntawmkev tswj kab tsuagl: Cov tshuaj lom uas Bacillus thuringiensis tsim tawm tuaj yeem tswj tau ntau pua tus kab tsuag, tshwj xeeb tshaj yog muaj txiaj ntsig zoo rau cov kab laug sab lepidopteran. Nws feem ntau yog siv rau kev tswj cov kab ntsig cabbage, cov kab laug sab paj rwb, cov npauj npaim hmo ntuj turnip, cov npauj npaim hmo ntuj kab txaij, cov npauj npaim hmo ntuj qab zib beet, cov npauj npaim me me cabbage, cov npauj npaim haus luam yeeb, cov kab laum taub dag tiam ob, cov kab laum pob kws, cov kab laug sab tshuaj yej, cov kab laug sab ntoo thuv, cov npauj npaim tshuaj yej, cov kab laug sab taum, cov kab laug sab pob kws nplaum, cov npauj npaim hmo ntuj tis nyiaj, thiab cov kab laug sab yoov tshaj cum, nrog rau qee cov kab tsuag xws li cov kab, cov qwj, thiab cov kab laug sab.

2. Kev Xaiv: Bacillus thuringiensis feem ntau yog tua cov kab tsuag uas muaj ib puag ncig alkaline hauv lawv txoj hnyuv thiab muaj zog tua tau. Nws tsis muaj tshuaj lom rau tib neeg, tsiaj txhu, muv, ntses, cws, roob ris thiab lwm yam tsiaj txhu hauv dej.

3. Kev siv dav dav: Bacillus thuringiensis siv tau dav hauv paj rwb, txiv laum huab xeeb, taum pauv, qos yaj ywm, mov, txiv lws suav, eggplant, kua txob, zaub qhwv, zaub qhwv Suav, paj noob hlis, thiab lwm yam zaub, nrog rau txiv apple, txiv pear, txiv hmab, txiv ntoo walnut, txiv hmab txiv ntoo citrus, lychees, kiwis, longans, txiv nkhaus taw, thiab lwm yam ntoo txiv hmab txiv ntoo, thiab tseem siv rau ntau yam qoob loo xws li paj, tshuaj ntsuab Suav, thiab lwm yam.

4. Tsis muaj kev tiv thaiv: Bacillus thuringiensis yog ib hom kab mob uas tsim cov noob uas tuaj yeem tsim cov protein siv lead ua rau noob thiab ua haujlwm sab nraud thiab sab hauv rau cov kab tsuag. Cov kab tsuag tsis tuaj yeem tsim kev tiv thaiv. Txawm hais tias nws tau siv rau ntau xyoo lawm, nws tseem yog cov tshuaj tua kab mob zoo heev txog niaj hnub no.

5. Kev sib haum xeeb zoo: Bacillus thuringiensis muaj kev sib haum xeeb zoo thiab tuaj yeem sib xyaw nrog cov tshuaj tua kab uas ua haujlwm sai xws li methomyl, avermectin, thiab indoxacarb, ua rau muaj kev cuam tshuam zoo.

6. Tsis muaj kuab paug los ntawm tsib yam tshuaj lom: Bacillus thuringiensis yog cov kab mob zoo li tus pas uas tsis muaj tshuaj lom rau tib neeg, ntses, cw, roob ris, thiab lwm yam, thiab tsis ua rau muaj kuab paug rau ib puag ncig. Yog li ntawd, nws tau dhau los ua cov tshuaj tua kab uas nyiam tshaj plaws rau kev tsim cov khoom ua liaj ua teb ntsuab thiab tsis muaj kuab paug.

II. Cov txheej txheem siv Bacillus thuringiensis

Rau kev tswj cov kab tsuag xws li npauj npaim qab zib beet, npauj npaim zaub qhwv me me, thiab kab ntsig zaub qhwv, nws tuaj yeem siv thaum lub sijhawm ua kab thaum cov kab tsuag tseem hluas. Siv 30-40 grams ntawm 2% Avisept Bacillus thuringiensis hmoov ntub dej rau ib daim av, sib tov nrog 30-40 kilograms dej rau kev txau sib npaug. Qhov no tuaj yeem tua cov kab tsuag sai sai thiab muaj txiaj ntsig ntev nrog kev ua haujlwm sai.

Yog xav tswj cov kab tsuag xws li kab npauj npaim me me, kab laug sab mov, kab laug sab ntoo thuv, kab laum pob kws, kab laug sab loj, thiab kab laug sab koob, siv 25-35 grams ntawm 1% Avisept Bacillus thuringiensis hmoov ntub dej rau ib daim av, sib tov nrog 30 kilograms dej kom txau sib npaug. Qhov no tuaj yeem tswj tau qhov kev puas tsuaj ntxiv uas cov kab tsuag ua rau.

III. Kev ceev faj rau Bacillus thuringiensis

1. Siv ua ntej: Ua ib hom kab mob, thaum siv ib leeg xwb, qhov tua kab qeeb qeeb. Yog li ntawd, nws yuav tsum tau siv thaum pib muaj kab tsuag kom tswj tau qhov kev puas tsuaj los ntawm cov kab tsuag.

2. Siv thaum tav su: Lub hnub ci muaj zog yuav tua tau cov kab mob no. Yog li ntawd, thaum siv cov tshuaj tua kab no, nws yog qhov zoo tshaj plaws los xaiv siv ua ntej 10 teev sawv ntxov lossis tom qab 4 teev tsaus ntuj, nrog rau cov txiaj ntsig zoo dua.

3. Siv rau qhov kub siab: Bacillus thuringiensis ua haujlwm thaum kub siab. Thaum qhov kub tshaj 20 ℃, qhov cuam tshuam zoo dua.