Ama-Biopesticides: I-Bacillus thuringiensis ne-Spinosad

Abalimi babheka izibulala-zinambuzane ezivamile ezithatha indawo yazo. Abanye bakhathazekile ngomphumela wekhemikhali ethile empilweni yabo.

Abanye bayashintsha ngenxa yokukhathazeka ngemithelela eyingozi ezweni elibazungezile. Kulaba balimi, ama-biopesticides angaba yindlela elula kodwa esebenzayo.

Ama-Biopesticides abizwa nangokuthi izibulala-zinambuzane zemvelo noma zebhayoloji. Imvamisa ayinabo ubuthi obuncane ezintweni ezingahlosiwe kanye nemvelo.

I-Bacillus thuringiensis ne-Spinosad yizibulala-zinambuzane ezimbili ezivamile. Ikakhulukazi, zingama-microbial insecticides.

Ngokuvamile, izinhlobo ze-Bacillus thuringiensis ziqondene nezinambuzane ezithile kuyilapho i-Spinosad iwububanzi obubanzi.

Ayini ama-Microbial Insecticides?

I-Microbe igama elifushane lama-microorganisms. Lezi izinto eziphilayo ezincane kangangokuthi asikwazi ukuzibona ngamehlo enyama.

Endabeni yama-microbial insecticide, sikhuluma ngama-microbes angenabungozi kubantu, kodwa abulalayo ezinambuzaneni.

Isithako esisebenzayo ku-microbial insecticide yi-microbe ngokwayo. Kungase kube amabhaktheriya, isikhunta, i-protozoa, ama-nematode athwala amagciwane, noma igciwane.

I-Bacillus thuringiensis (Bt) itholakala ngokwemvelo emhlabathini, emanzini, nasezindaweni zezitshalo.I-Saccharopolyspora spinosa (Spinosad) ihlala emhlabathini futhi.

Asebenza kanjani ama-Microbial Insecticide?

Njengabantu nezitshalo zabo zasengadini, izinambuzane zisengozini yokungenwa amagciwane. Ama-microbial insecticide asizakala ngalobu buthakathaka.

Ziqukethe ukugcwala okuphezulu kwe-microorganism etholakala emvelweni futhi eyaziwa ukuthi ithinta izinambuzane eziwuhlupho ezihlukene. I-microbe idla izinambuzane.

Ngenxa yalokho, isilokazane sigula kakhulu ukuthi singaqhubeka nokudla noma singakwazi ukuzala.

I-Bt ithinta isigaba sezibungu (isibungu) samaqembu ezinambuzane eziningi. Lapho amacimbi, njengama-hornworms, edla i-Bt, iqala ukubila emathunjini azo.

Ubuthi obukhiqizwayo bubangela ukuba amacimbi ayeke ukudla futhi afe ngemva kwezinsuku ezimbalwa.

Izinhlobo ezithile ze-Bt eziqondiswe kumaqembu ezinambuzane ezithile. I-Bt va. i-kurstaki iqondise izibungu (uvemvane nezibungu zebhu), isibonelo.

I-Bt va. I-israelensis ihlose izibungu ezindizayo, kuhlanganise nomiyane. Qiniseka ukuthi ukhetha izinhlobonhlobo ezifanele ze-Bt yesilokazane sakho.

I-Spinosad iyisibulala-zinambuzane esine-spectrum esibanzi. Ihlasela amacimbi, abavukuzi bamaqabunga, izimpukane, ama-thrips, amabhungane, nezibungu zesicabucabu.

I-Spinosad isebenza ngokuhlasela isimiso sezinzwa lapho izinambuzane seziyidlile. Njenge-Bt, izinambuzane ziyeka ukudla futhi zife ngemva kwezinsuku ezimbalwa.