Bacillus thuringiensisHe patu pepeke iti-paitini te patu pepeke. E rua ngā momo paitini ka puta i a ia, arā, ko ngā endotoxins (ngā whakaurunga tioata) me ngā exotoxins, e mutu ai te kai a ngā pepeke, ā, ka mate i te hemokai, i te pirau o te toto, me te paitini o te roro.
Te tikanga patu pepeke
I muri i teBacillus thuringiensisKi te horomia e te pepeke, ka noho pirinoa ki waenganui o te puku o te kaihautū. I roto i te taiao kawakore tika i roto i te puku, ka tipu, ka whakaputa uri. Ka waikurahia ngā paitini tioata e ngā protease i roto i te ara puku o te tinana pepeke, ka hanga he wāhanga paitini iti ake. Ka mahi ēnei wāhanga ki ngā pūtau epithelial puku o te tinana pepeke, ka pāngia te puku, ka pakaru, ka pāngia te tinana pepeke, ka mutu te kai. Muri iho, ka uru te Bacillus thuringiensis ki te kōhao toto hei whakaputa uri, ka pāngia te pepeke e te mate pūkahukahu, ā, ka mate te pepeke.
Ngā painga o Bacillus thuringiensis:
(1) Ka tutuki te tukanga whakaputa i ngā whakaritenga tiaki taiao. I muri i te rehu i te patu ngarara, he iti noa iho ngā toenga e toe ana i te mara.
(2) He iti te utu whakaputa. He whānui te wātea o ngā rauemi mata, ā, he hua ahuwhenua me ngā hua taha katoa, he iti noa iho ngā utu.
(3) He whānuitia ngā pānga patu pepeke o tēnei hua. He paitini ki te neke atu i te 200 ngā momo pepeke pepeke.
(4) Mā te whakamahi tonu ka puta he wāhi mate urutā mō ngā pepeke, ka horapa whānuitia ngā purapura o ngā mate pepeke, ā, ka tutuki ai te kaupapa o te whakahaere ā-taiao i te kiato o te taupori pepeke.
(5) Kāore he poke i te taiao me ngā puna wai, kāore he kino ki te tangata me ngā kararehe, ā, he haumaru hoki mō te nuinga o ngā pepeke hoariri tūturu.
(6) Ka taea te whakaranu me te whakamahi tonu me ētahi atu momo rongoā koiora, ngā kaiwhakahaere tipu pepeke, ngā paitini pyrethroid spirochete, te carbamate, ngā patupatu organophosphorus, me ētahi patu harore me ngā maniua matū.
(7) Mā te whakamahi i ngā patu pepeke me ngā patu pepeke matū ka taea te whakapai ake i te ātete o ngā pepeke ki ngā patu pepeke matū.
Ngā tohutohu whakamahi
Whakahaerehia ngā pepeke kai rau pērā i te anuhe jujube, te pūrerehua jujube, te pūrerehua paitini, me te pūrerehua koikoi. Rehuhia te wai Bt i te kukū o te 500-600 wā i te wā tōmua o te whanaketanga o ngā torongū. He pai ngā hua o tēnei tikanga mō te whakahaere i ngā pepeke me te tiaki i ngā rau.
Whakahaerehia te pūrerehua jujube me te pūrerehua aporo, tae atu ki te pūrerehua pea. I te wā e whānau hua ana te pūrerehua pakeke me te wā e kai hua ana ngā torongū, rehuhia te wai Bt emulsion (kei roto ko te 0.2% pyrethroid hangai) i te kukū o te 500-600 wā i mua i te whakaekenga a ngā torongū i te hua. He pai ngā hua o tēnei tikanga ki te patu i ngā pepeke me te tiaki i ngā hua.
Ngā Whakatūpato
① Kāore e taea te whakaranu ki ngā patu huakita.
② Kaua e whakamahia te wāhi whakatipu noke hiraka i ngā wā katoa e taea ana hei ārai i te paihana o te noke hiraka.
③ He pai te mahi a Bacillus thuringiensis ina teitei te pāmahana (neke atu i te 20℃). He mea tika kia whakamahia mai i Hune ki Hepetema.
④ He ngāwari tēnei matū ki te mimiti i te makuku, ā, ka hanga he puranga. Me rongoa ki te wāhi hiri, maroke, me te hauhautanga.
Te wā tuku: 27-Pepuere-2026