University City, Pennsylvania — He whānuitia te whakatipu i te witi hotoke i ngā pāmu heihei i te rohe o Mid-Atlantic o te Hononga o Amerika hei whakaputa witi me te kakau witi. Ka whakamahia te witi hei whāngai kararehe, ā, ka whakamahia te kakau witi hei moenga.Te whakamahinga o ngā kaiwhakahaere tipuka taea te whakanui ake i te hua witi mā te pehi i te tipu poutū me te whakaiti i te tūponotanga o te noho, he āhuatanga e tino whakaiti ana i te hua witi. Heoi, kāore anō kia mārama te pānga o ngā kaiwhakahaere tipu ki te hua me te kounga o te kakau witi. Nō reira, i whakahaerehia e tētahi rōpū rangahau mai i te Whare Wānanga o Pennsylvania State tētahi rangahau hei aromatawai i ngā pānga o te whakakotahi i ngā kaiwhakahaere tipu me ngā tere tono tongi hauota rerekē. I whakahaerehia te rangahau i roto i ngā whakamātautau mara witi hotoke i te Russell E. Larson Agricultural Research Center i te Whare Wānanga o Pennsylvania State.
"Kāore ngā kaimahi pāmu e hiahia kia nui rawa te tupu o te witi, kia kore ai e pirau te witi, nō reira he maha ngā kaimahi pāmu kua roa e whakamahi ana i tēnei tikanga."ngā kaiwhakahaere tipu tipu,"E kī ana a Daniela Carrijo, he ahorangi hono mō te whakaputa witi me te tohunga toronga i te Kāreti o ngā Pūtaiao Ahuwhenua i te Whare Wānanga o Pennsylvania State. "E mōhio ana mātou ka taea e ngā kaiwhakahaere tipu tipu te whakaiti i te mōrearea o te noho me te whakanui ake i te hua witi, engari e hiahia ana ngā kaimahi pāmu me ētahi kaipupuri whai pānga ki te mōhio ki tōna pānga ki te hua me te kounga o te kakau witi. He kaupapa tēnei me ngā pānga mahi, ā, i whakamatauria e mātou tētahi hua e whakamahia whānuitia ana ko te tricyclazole ethyl ester hei whakatau i tōna pānga ki te hua me te kounga o te kakau witi, he mea nui hoki mō ngā pāmu hua whakaranu."
Neke atu i te rua tau te roa, i whakamātauhia e ngā kairangahau ngā huinga e iwa o ngā tono tongi hauota e toru me ngā maimoatanga tricyclazole ethyl ester e toru. I kitea e rātou i whakaitihia e te tricyclazole ethyl ester te teitei o te tipu engari kāore i whakanui ake i te matotoru o te kakau. E rua ngā maimoatanga tricyclazole ethyl ester i whakaitihia te hua kakau mā te 8%, i te mea kotahi te maimoatanga i whakaitihia te hua kakau mā te 5%, ahakoa kāore tēnei rerekētanga i te tino hiranga. I kitea anō e rātou kāore te tricyclazole ethyl ester i whakarerekē i te kounga kakau, i te mimiti wai rānei—ko te tikanga kāore i pā ki te kaha o te kakau ki te pupuri wai, nō reira ka taea tonu te whakamahi i te kakau hei moenga kararehe. I kōrero ngā kairangahau kāore i kitea he wāhi noho i roto i tētahi o ngā māra whakamātautau, ā, ko te whakanui ake i te tono tongi hauota i whakapai ake i te ihirangi pūmua witi.
"He rerekē ā mātou hua—i kitea e mātou ka whakaitihia pea e te tricyclazole ethyl ester te hua o te kakau witi, engari kāore e pā ki te kounga o te kakau witi, ki te hua rānei o te witi," te kī a Carrijo. "Me paunatia e ngā kaipāmu e whakamahi ana i te tricyclazole ethyl ester ngā painga me ngā huakore: ka āwhina pea ki te whakaiti i te noho (mēnā he raruraru tēnei), engari ka whakaitihia pea te hua o te kakau witi. He mea nui rawa tēnei tauwhitiwhiti mēnā he hua pāmu nui te kakau witi, ā, e whakamahia ana hei moenga."
Ko te kaituhi tuatahi o te rangahau, a Larissa Correa, he hoa rangahau manuhiri i te Tari Pūtaiao Tipu i te Whare Wānanga o Pennsylvania State. He hoa rangahau paerua ia i tēnei wā i te Whare Wānanga o Wisconsin-Madison. I whai wāhi atu hoki a Ronald Hoover, te kaiwhakahaere kaupapa matua hono i te Tari Pūtaiao Tipu, ki te rangahau.
I tautokona te rangahau e Syngenta me te Whare Wānanga Kai me te Ahuwhenua o te Tari Ahuwhenua o Amerika.
Wā tuku: Mei-13-2026
