ʻO ka pōʻino a me ka mālama ʻana i ka maʻi lau ʻuala

ʻO ka ʻuala, ka palaoa, ka raiki, a me ke kulina ka mea i ʻike nui ʻia ʻo ia nā meaʻai meaʻai nui ʻehā o ka honua, a he kūlana koʻikoʻi lākou i ka hoʻomohala ʻana i ka ʻoihana mahiʻai o Kina.ʻO ka ʻuala, i kapa ʻia hoʻi ʻo ʻuala, nā mea kanu maʻamau i ko mākou ola.Hiki iā lākou ke hana i nā mea ʻono he nui.Loaʻa iā lākou ka waiwai kūpono ma mua o nā huaʻai a me nā mea kanu ʻē aʻe.He waiwai nui lākou i ka starch, nā minerala a me ka protein.Loaʻa iā lākou nā "ʻāpala lalo".Poʻo inoa.Akā i ke kaʻina o ke kanu ʻana i ka ʻuala, ʻike pinepine ka poʻe mahiʻai i nā ʻano pest a me nā maʻi like ʻole, kahi e hoʻopilikia nui ai i nā pono kanu o ka poʻe mahiʻai.I ke kau mahana a me ka haʻahaʻa, ʻoi aku ka kiʻekiʻe o ka maʻi o ka lau ʻuala.No laila, he aha nā hōʻailona o ka maʻi lau ʻuala?Pehea e pale aku ai?

ʻO nā hōʻailona pōʻino E hōʻino nui i nā lau, ʻo ka hapa nui o ia mau mea ka maʻi mua ma nā lau haʻahaʻa haʻahaʻa ma waena a me nā pae hope o ka ulu.Hoʻopili ʻia nā lau ʻuala, e hoʻomaka ana mai kahi kokoke i ka ʻaoʻao o ka lau a i ʻole ka piko, ua hoʻokumu ʻia nā kiko necrotic ʻōmaʻomaʻo-ʻulaʻula i ka pae mua, a laila e ulu mālie a kokoke i ka "V"-ʻano hina-ʻeleʻele nui necrotic kiko, me nā ʻano apo i ʻike ʻole ʻia. , a ʻo nā ʻaoʻao o waho o nā kiko maʻi he Chlorescence a melemele, a ʻo ka hope o nā lau maʻi he necrotic a wela, a i kekahi manawa hiki ke hoʻopuka ʻia kekahi mau kikoʻeleʻele ʻeleʻele ma nā wahi maʻi, ʻo ia hoʻi, ka conidia o ka pathogen.I kekahi manawa hiki iā ia ke hoʻopōʻino i nā kumu a me nā kumu waina, e hana ana i nā ʻāpana necrotic hina-ʻeleʻele, a ma hope hiki ke hoʻopuka i nā kikoʻeleʻele liʻiliʻi i ka ʻāpana maʻi.

Ma muli o ka ma'i o ka fungus imperfect fungus Phoma vulgaris.Hoʻopau kēia pathogen i ka hoʻoilo i ka lepo me ka sclerotium a i ʻole hyphae me nā ʻiʻo maʻi, a hiki ke hoʻopau i ka hoʻoilo ma nā koena hoʻokipa ʻē aʻe.Ke kūpono nā kūlana o ka makahiki e hiki mai ana, e pipiʻi ka wai ua i nā pathogens lepo ma luna o nā lau a i ʻole nā ​​kumu kumu e hoʻomaka ai ka maʻi.Ma hope o ka loaʻa ʻana o ka maʻi, hana ʻia ka sclerotia a i ʻole conidia ma ka ʻāpana maʻi.ʻO nā maʻi hou me ke kōkua o ka wai ua e laha ai ka maʻi.ʻO ka mahana a me ka haʻahaʻa kiʻekiʻe e kūpono i ka hanana a me ka laha o ka maʻi.ʻOi aku ka nui o ka maʻi ma nā ʻāpana me ka lepo maikaʻi ʻole, ka mālama nui ʻana, ke kanu nui ʻana, a me ka ulu ʻana o nā mea kanu nāwaliwali.

Kāohi a me ka hoʻomalu ʻana Nā hana mahiʻai: koho i nā ʻāpana momona ʻoi aku ka maikaʻi no ke kanu ʻana, e hoʻopaʻa i ka nui o ke kanu kūpono;e hoʻonui i nā mea kanu kūlohelohe, a hoʻopili pono i ka phosphorus a me ka pālolo pālolo;e hoʻoikaika i ka hoʻokele i ka wā ulu, ka hoʻoinu ʻana a me ka topdressing i ka manawa, e pale i ka ʻelemakule o ka mea kanu;ka manawa ma hope o ka ʻohi ʻana Wehe i nā kino maʻi ma ke kula a luku iā lākou ma ke ʻano kikowaena.

Ka hoʻomalu kemika: ka pale ʻana a me ka hoʻōla ʻana i ka hoʻomaka ʻana o ka maʻi.I ka pae mua o ka maʻi, hiki iā ʻoe ke koho e hoʻohana i ka 70% thiophanate-methyl wettable pauka 600 manawa wai, a i ʻole 70% mancozeb WP 600 mau manawa wai, a i ʻole 50% iprodione WP 1200 Multiplying wai + 50% Dibendazim wettable pauka 500 mau wai. , a i ʻole 50% Vincenzolide WP 1500 manawa wai + 70% Mancozeb WP 800 manawa wai, a i ʻole 560g/L Azoxybacter · Manawa 800-1200 manawa wai o Junqing suspending agent, 5% chlorothalonil pauka 1kg-2kg/muuga, a i ʻole 1kg-2kg/muuga. Hiki ke hoʻohana ʻia ka pauka copper hydroxide 1kg/mu no ke kanu ʻana i nā wahi i pale ʻia.