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 ka 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 he hiki ke hoʻopuka ʻia nā wahi ʻeleʻele 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 puka 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 ka mea kūpono i ka hanana a me ka laha o ka maʻi. ʻOi aku ka maʻi ma nā ʻāpana me ka lepo maikaʻi ʻole, ka hoʻokele 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/mu, a i ʻole 5% kasugamycin·copper hydroxide pauka 1kg/mu hiki ke hoʻohana ʻia. no ke kanu ʻana ma nā wahi i mālama ʻia.