Wahi a ka noiʻi i alakaʻi ʻia e Produce Solutions, kahi hui o nā agronomists potato, kahi ala e hoʻohana ai i ka nematocide wai me kahi hana hou o ka hana, me kahi huahana granular i loaʻa, ʻo ia ka hoʻolālā maikaʻi loa no ka mālama ʻana i ka nematode potato cyst.
Ua hoʻohana ka hui i ʻekolu mau makahiki i ka hoʻāʻo ʻana iā Velum Prime (fluopyram) ma Shropshire, me ka hoʻohana ʻana iā ia wale nō a me ka sequentially me nā nematocides granular ma nā ʻano like ʻole. I kēia manawa ua loaʻa i ka ʻoihana kahi kiʻi maʻalahi o kona wahi i nā hoʻolālā hoʻokele potato cyst nematode (PCN) a me nā kumukūʻai pili.
No ka agronomist James Lee, ka mea nāna i mālama i nā hoʻokolohua, ua hōʻoia ka hana ʻaʻole ʻo Velum Prime (fluopyram) kahi mea pani no nā nemicides granular. "Ma hope o ʻekolu mau makahiki, ua ʻike mākou iā Velum Prime i kahi kuleana nui i ka hoʻokō ʻana i nā huahana ʻē aʻe," wahi āna. "Ma kēia ʻano, pili kā mākou ʻike i ka mea a Bayer i ʻōlelo mau ai."
A hiki i ka makahiki i hala, ua hoʻokumu ʻia ka mālama ʻana i nā pest kemika ma ka hoʻohana ʻana i nā nematicides granular e like me vidat (oxamil). A laila hele mai ʻo Velum Prime i ka pūnāwai o 2019, i hoʻokumu ʻia ma ka SDHI fungicide fluopyram, kamaʻāina i nā mea kanu palaoa e hakakā nei i nā maʻi foliar e like me septoria.
I ka hoʻāʻo 2019, ua loaʻa nā hua maikaʻi loa a me ka palena kiʻekiʻe loa ma ka hoʻohana mau ʻana iā Velum Prime a me Vydate piha piha ma mua o ka hapalua. ʻO kēia ala e loaʻa ai nā kumukūʻai kemika nui o ka wā mua no nā mea kanu, ʻo ia ke kumu kūʻai nui loa no ka pale ʻana i nā mea kanu.
"ʻOi aku ka kiʻekiʻe o nā kumukūʻai mua, akā ʻo ia ke koho ʻoi aku ka maikaʻi. Ua lawe mai ʻo ia i nā hua kiʻekiʻe loa a me nā loaʻa kālā maikaʻi loa.
Ua hōʻike ʻia nā hoʻāʻo ʻana ʻo G pallida wale nō nā ʻano nematode i loaʻa, me kahi hoʻāʻo ma mua o ke kanu ʻana e hōʻike ana i ka helu mua o 27/g lepo. Ma nā papa ma nā lālani ʻelua, kēlā me kēia 12 m ka lōʻihi, ua hana ʻia ka mālama ʻana me ka hoʻohana ʻana i nā mea mahiʻai: Ua hoʻohana ʻia ʻo Velum Prime ma kahi seeder, a ua hoʻohana ʻia ʻo Vydate i kahi mālama moena.
"He hopena maikaʻi nā lāʻau lapaʻau a pau i ka ulu ʻana o ka hua a me ka hopena hope i hoʻohālikelike ʻia me nā lāʻau lapaʻau ʻole, e hōʻike ana i ka mana nematode," wahi a Mr. Li. ʻOiai ʻoi aku ka kiʻekiʻe o nā pōmaikaʻi palekana o Velum Prime ma mua o Vydate ke hoʻohana wale ʻia, ʻo kā lākou hoʻohana mau ʻana i hopena i nā hua kiʻekiʻe loa.
"ʻO kēia ʻokoʻa ʻokoʻa wale nō e hōʻoia i ka hoʻohana ʻana i nā huahana ʻelua i ko lākou hiki piha," i ʻōlelo ai ʻo ia. "Ke kākoʻo pū nei ka ʻikepili margin i kēia a hōʻike i ke kaomi nematode i ka hua." A i ʻole, ua hoʻopaʻa ʻia nā pōmaikaʻi physiological maopopo ma nā wahi i mālama ʻia, me ka hopena ʻole o ka lapaʻau ʻana i ka mea maloʻo a i ʻole ka loaʻa ʻana o nā hemahema o loko.
ʻAʻole liʻiliʻi ka ʻokoʻa o ka germination a me ka hoʻomohala haulm ma waena o nā lāʻau lapaʻau, me nā mea āpau a hiki i 50% germination 31 mau lā ma hope o ke kanu ʻana. "E like me ka mea i manaʻo ʻia, ʻoi aku ka maikaʻi o ka pale ʻana mai ka nematode i nā mea kanu ikaika ma muli o nā kumukūʻai noi huahana kiʻekiʻe."
ʻO ka anomaly wale nō i ka hoʻokolokolo ʻana ʻo ia ka nānā ʻana i ka lepo ma hope o ka ʻohi ʻana i hōʻike ʻia ʻaʻole i loli ka ratio ma waena o ka helu mua o nā hua (Pi) a me ka helu hope o nā hua (Pf). "He mea kāhāhā kēia. Ua hōʻike ʻia nā hopena agrotechnical e ʻoi aku ka nui o ka hoʻonui ʻana o nā ʻāpana i mālama ʻole ʻia, akā ʻaʻole hiki ke piʻi i kekahi o nā lapaʻau. ʻAʻole maopopo iā mākou pehea e wehewehe ai. "
He mea hoʻohui maikaʻi ʻo Velum Prime i ka mea kaua e kūʻē i nā nematodes ʻuala a hiki i ka manawa kūpono, hōʻuluʻulu ʻo James Lee o Produce Solutions.
No ka mea ʻaʻole maopopo ka lōʻihi o ka wā e hiki mai ana o nā nemicides granular, pono nā mea hana e lawe i nā manawa āpau e hoʻāʻo i kahi huahana hou a ʻike inā kūpono ia iā lākou.
