I-Bacillus thuringiensissisibulali-zinambuzane esinobungozi obuphantsi. Sivelisa ikakhulu iintlobo ezimbini zetyhefu, ezizezi ii-endotoxins (iikristale inclusions) kunye nee-exotoxins, ezibangela ukuba izinambuzane ziyeke ukutya kwaye ekugqibeleni zife ngenxa yendlala, ukuwohloka kwegazi kunye ne-neurotoxicity.
Indlela yokubulala izinambuzane
Emva kweI-Bacillus thuringiensisXa ityiwe sisinambuzane, siyayifunxa emathunjini omntu osiphetheyo. Kwindawo efanelekileyo ye-alkaline emathunjini, siyakhula size sizale. Iityhefu zekristale zifakwa kwi-hydrolyzed yi-proteases emathunjini omzimba wesinambuzane, zenze ii-subunits ezincinci ezinetyhefu. Ezi subunits zisebenza kwiiseli ze-epithelial zamathumbu zomzimba wesinambuzane, zibangele ukukhubazeka kwamathumbu, ukugqobhoka, ukukhubazeka komzimba wesinambuzane, kunye nokuyeka ukutya. Emva koko, i-Bacillus thuringiensis ingena kwigazi ukuze izale, ibangele i-septicemia kwaye ikhokelele ekufeni kwesinambuzane.
Iingenelo zeBacillus thuringiensis:
(1) Inkqubo yemveliso ihambelana neemfuno zokhuseleko lokusingqongileyo. Emva kokutshiza isibulali-zinambuzane, kushiyeke intsalela encinci endle.
(2) Iindleko zemveliso ziphantsi. Izinto zayo ezisetyenzisiweyo zifumaneka ngokubanzi kwaye zonke ziimveliso zezolimo nezecala, ezinamaxabiso aphantsi kakhulu.
(3) Le mveliso ineziphumo ezahlukeneyo zokubulala izinambuzane. Inetyhefu kwiintlobo ezingaphezu kwama-200 zezinambuzane ze-lepidopteran.
(4) Ukusetyenziswa rhoqo kuya kwenza indawo yobhubhane wezinambuzane, okubangela ukusasazeka ngokubanzi kwembewu yezinambuzane ezibangela izifo, kufezekiswe injongo yokulawula ngokwendalo ubuninzi bezinambuzane.
(5) Ayinangcoliso kwindalo esingqongileyo nakwimithombo yamanzi, ayinabungozi ebantwini nakwimfuyo, kwaye ikhuselekile kwizinambuzane ezininzi zendalo eziziintshaba.
(6) Ingaxutywa kwaye isetyenziswe ngoko nangoko kunye nezinye izinto ezahlukeneyo zebhayoloji, abalawuli bokukhula kwezinambuzane, iityhefu ze-pyrethroid spirochete, i-carbamate, izibulala-zinambuzane ze-organophosphorus, kunye nezinye izibulali-zinambuzane kunye nezichumisi zeekhemikhali.
(7) Ukutshintshanisa ukusetyenziswa kwezibulali-zinambuzane kunye nezibulali-zinambuzane zeekhemikhali kunokuphucula ukumelana kwezinambuzane nezibulali-zinambuzane zeekhemikhali.
Imiyalelo yokusebenzisa
Lawula izinambuzane ezitya amagqabi ezifana neencukuthu zejujube, i-jujube moth, i-toxic moth, kunye ne-prickly moth. Futha i-Bt emulsion kuxinzelelo oluphindwe ka-500-600 ngexesha lokuqala kokukhula kwe-larvae. Le ndlela inika iziphumo ezilungileyo ekulawuleni izinambuzane nasekukhuseleni amagqabi.
Lawula i-jujube kunye ne-apple codling moth, kunye ne-pear codling moth. Ngexesha lokuzala kwamaqanda kwe-moth endala kunye nexesha lokudla iziqhamo kwe-larvae, fafaza i-Bt emulsion (equlethe i-0.2% synthetic pyrethroid) kuxinzelelo lwezihlandlo ezingama-500-600 ngaphambi kokuba i-larvae ihlasele isiqhamo. Le ndlela inika iziphumo ezilungileyo ekubulaleni izinambuzane kunye nokukhusela iziqhamo.
Ukulumkela
① Ayinakuxutywa nezibulali-ntsholongwane.
② Indawo yokukhulisa isilika mayingasetyenziselwa kangangoko ukuthintela ityhefu yesilika.
③ I-Bacillus thuringiensis isebenza kakuhle xa amaqondo obushushu ephezulu (ngaphezu kwama-20℃). Kucetyiswa ukuba isetyenziswe ukususela ngoJuni ukuya kuSeptemba.
④ Le arhente ithambekele ekufunxeni umswakama kwaye iya kwenza amaqhuma. Ifanele igcinwe kwindawo evaliweyo, eyomileyo nepholileyo.
Ixesha leposi: Februwari-27-2026