Hiki i nā nematode maikaʻi ke kāohi i nā nematodes parasite mea kanu. He mea pono e hoʻoulu i nā nematode maikaʻi ma kahi o ka nānā wale ʻana i nā mea maikaʻi ʻole. "Hiki i nā mea ulu ke koho maʻalahi i ʻewalu mau ʻano maikaʻi ʻole he ʻumi, akā ʻaʻohe o nā kanaiwa maikaʻi," i ʻōlelo ʻia ʻo Piet van der Haas ka mea loiloi o ka mahi ʻai ʻo Mertens ma Horst.
Me ka mālama lepo maikaʻi, hāʻawi ka mea ulu i nā nematodes ʻino a emi iki ka manawa a me nā ʻano maikaʻi i kahi ākea. No laila, e like me kā Van der Haas, uku ia e hana hou me kēlā ʻoiaʻiʻo. Hoʻomaopopo ʻo ia i ka loaʻa ʻole o nā pilikia me nā nematodes i ka mahi ʻana o ka meaola. I loko o kēlā ʻōnaehana, hāʻawi ʻia nā ʻelala predatory a me nā fungi i 'hopu a ʻai' i nā nematodes i kahi nui aʻe. Hiki i nā mea kanu maʻamau ke hoʻokō i nā mea hou aʻe me ka hoʻokele lepo maikaʻi ke hiki mai i nā nematodes, i ʻōlelo ʻia e ka ʻōlelo aʻoaʻo.
Wahi a Van der Haas ua paʻi ikaika ʻia nā nematodes maikaʻi e nā mea hoʻomomona huhū e like me ka pua puaʻa a me ka fertrate (mineral concentrate). "Ke hoʻohana ʻia, ʻo nā nematode maikaʻi, e like me Dorylaimida a me Monochida species e hele wikiwiki aku, ʻoi aku ka wikiwiki ma mua o nā nematodes 'maikaʻi'."
ʻO nematodes maikaʻi - hoʻohuli i ka hua
I ka 2013 a me ka 2014, ua loaʻa ʻo Van der Haas a me nā mea ulu ʻO Gebroeders Leidsen i ka ʻike me ka mea kanu parasitic nematode Pratylenchus penetrans (root lesion nematode). Ulu ka ʻohana i nā leeks ma ka ʻāina ʻo Kronenberg.
E hoʻokuʻu i ka ʻāina ʻuala i hoʻololi ʻia mai ka nematode lesion root, ua mahi lākou i nā Tagetes ma hope o ka leek mua a ma mua o ka leek. Ua ʻōlelo ʻo Van der Haas e wāwahi pono ʻia ka lepo ma mua, i hiki i nā Marigolds ke aʻa hohonu a hiki i ka exudates aʻa ke hana i kā lākou hana hohonu. ʻO kēia no ka mea i ʻole e hiki i ka nematode ke ola hohonu i ka honua.
Hiki ke lūlū ʻana i nā Tagetes ma ka 13 ʻAukake, akā ua lawe ʻia naʻe i ka pae nematode lesion aʻa i ka ʻole.
Ua hōʻike ʻia kahi hāpana nematode aia nō kahi pae o 3 Trichodorus nematodes no 100 mau gram. ʻ saylelo nā loiloi 'ʻike ʻoe, marigolds multiply trichodorides'. ʻO ka mea pōmaikaʻi ua koi aku wau i kahi laʻana nematode piha, no laila me ke ana ʻana i nā nematode pololei. I ka hoʻomaʻamaʻa, hana iki ʻole kēia, no ka mea, ʻike nui nā mea kanu i ke kumu kūʻai. Hāʻawi kēia iā ʻoe i kahi kiʻi piha hou aʻe a hiki iā ʻoe ke hana e like me ia. Ua lilo ka pae Dorylaimida i 80 a me Monochida 120! ”
Ua manaʻo ʻo Van der Haas e hiki i nā nematode maikaʻi ke hoʻoneʻe i nā mea ʻino. ʻO kēia ka hihia me kahi laʻana ma Malaki: ua hele ka pae o Trichodorides i ka ʻole. Ua hana hou ʻia ke ʻano like i ka makahiki 2014 ma kahi papahana ʻē aʻe, i kēia manawa me ka lūlū ʻana i nā Tagetes ma ka 11 ʻAukake. Ua kūkākūkā ʻo Van der Haas i kāna mau ʻike me WUR nematode noiʻi ʻo Johnny Visser. ʻO Van der Haas: "Kākoʻo ia i ka manaʻo ma hope o ka barley hoʻoilo hiki iā ʻoe ke lūlū i nā marigolds no ka hopena ma Pp." ʻO ka makaʻu i ka hoʻonui ʻana o Trichodorus nematodes he kumu ʻole ia, e like me ka ʻōlelo aʻoaʻo.
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Ua ʻōlelo maikaʻi ʻo Van der Haas iā Mertens i Kekemapa. Makemake ʻo ia e hoʻomau e kaʻana like i kāna ʻike me ka lālā. "ʻO ka hopena o nā Tagetes i ka lepo no ʻekolu a ʻehā mau makahiki no laila ua ʻike ʻia no kekahi manawa." ʻ sayslelo ke kākāʻōlelo ʻo ke kumu no ka mahiʻai olakino hiki ke loaʻa mau i ka honua.