ʻO nā mea ʻino maʻamau i nā māla pīnati: ka ʻōpala lau, ka pala aʻa, ka pala kumu, nā aphids, ka ilo pulupulu, nā mea ʻino ma lalo o ka honua, a pēlā aku.
Hoʻolālā ʻoki ʻōpala i ka mahina ʻai pīnati:
Paipai ka ʻoki ʻana i ka māla pīnati i ka mālama ʻana i ka lepo ma hope o ka lūlū ʻana a ma mua o nā mea kanu. Hiki iā mākou ke koho i ka 0.8-1L 960 g/L Metolachlor EC no ka hectare,
a i ʻole 2-2.5L 330 g/L Pendimethalin EC no ka ʻeka etc.
Pono e pīpī like ʻia nā herbicides ma luna ma ka lepo ma hope o ka lūlū ʻia ʻana o nā pīnati a ma mua o ka ulu ʻana, a pono e uhi ʻia nā pīnati me ka ʻiliʻili ma hope koke iho o ke kau ʻana.
No ka mālama ʻana i ke kumu a me ka lau ma hope o ka puka ʻana mai, hiki ke hoʻohana ʻia he 300-375 ml no ka hectare o 15% Quizalofop-ethyl EC, a i ʻole 300-450 ml no ka hectare o 108 g/L Haloxyfop-P-ethyl EC i ke kahua lau 3-5 o nā nāhelehele mauʻu;
I ka wā o ka lau 2-4 o ka mauʻu, hiki ke hoʻohana ʻia he 300-450 ml no ka hectare o 10% Oxyfluorfen EC no ka pīpī ʻana i ka mea hoʻomalu ma nā kumu wai a me nā lau.
Hoʻolālā kaohi hoʻohui ʻia i ka wā ulu
1. Ka wā lūlū
He wā koʻikoʻi ka wā lūlū no ka kaohi pono ʻana i nā ʻano mea ʻino a me nā maʻi like ʻole. ʻO ka pilikia nui ma ka mālama ʻana a me ka pale ʻana i nā hua, he mea nui loa ke koho ʻana i nā pesticides kiʻekiʻe ka pono, haʻahaʻa ka ʻawahia, a lōʻihi ka lōʻihi e kaohi ai i nā maʻi aʻa a me nā mea ʻino ma lalo o ka honua.
Hiki iā mākou ke koho i ka 22% Thiamethoxam + 2% Metalaxyl-M + 1% Fludioxonil FS 500-700ml e hui pū ana me nā hua 100kg.
A i ʻole 3% Difenoconazole + 32% Thiamethoxam + 3% Fludioxonil FS 300-400ml e hui pū ana me nā hua 100kgs.
Ma nā wahi i nui loa ai nā mea ʻino ma lalo o ka honua, hiki iā mākou ke koho i ka 0.2%
ʻO Clothianidin GR 7.5-12.5kg. E kau ma mua o ka lūlū ʻana i ka pīnati, a laila e lūlū ma hope o ka ʻūlū ʻana i ka ʻāina me ka like.
A i ʻole 3% Phoxim GR 6-8kg, e hoʻopili ana i ka wā e lūlū ana.
Pono e lūlū ʻia nā hua i kāhiko ʻia a i ʻuhi ʻia paha ma hope o ka hoʻomaloʻo ʻana i ka ʻili hua, ʻoi aku ka maikaʻi i loko o 24 mau hola.
2. Mai ka wā ulu a hiki i ka wā pua
I loko o kēia wā, ʻo nā maʻi nui ka maʻi ʻōhū lau, ka pala aʻa a me ka maʻi pala kumu. Hiki iā mākou ke koho i 750-1000ml no ka hekita o 8% Tebuconazole + 22% Carbendazim SC, a i ʻole 500-750ml no ka hekita o 12.5% Azoxystrobin + 20% Difenoconazole SC, e pīpī ana i ka wā mua o ka maʻi.
I loko o kēia wā, ʻo nā mea ʻino nui ʻo Aphis, Cotton bollworm a me nā mea ʻino ma lalo o ka honua.
No ke kāohi ʻana i nā aphids a me ka ilo pulupulu, hiki iā mākou ke koho i 300-375ml no ka hectare o 2.5% Deltamethrin EC, e pīpī ana i ka wā mua o Aphis a me ke kolu o ka manawa o ka ilo pulupulu.
No ke kāohi ʻana i nā mea ʻino ma lalo o ka honua, hiki iā mākou ke koho i 1-1.5kg o 15% Chlorpyrifos GR a i ʻole 1.5-2kg o 1% Amamectin + 2% Imidacloprid GR, e hoʻopuehu ana.
3. Ka wā o ka ʻōpuʻu a hiki i ka wā oʻo piha ʻana o ka hua
Manaʻo ʻia kahi hoʻopili hui ʻia (insecticide + fungicide + plant growth regulator) i ka wā hoʻonohonoho ʻana o ka pīnati, hiki ke kaohi pono i nā maʻi like ʻole a me nā pepeke i nā pae waena a me ka hopena, e pale ana i ka ulu maʻamau o nā lau pīnati, e pale ana i ka ʻelemakule mua, a e hoʻomaikaʻi i ka oʻo ʻana.
I loko o kēia wā, ʻo nā maʻi nui ka ʻōpala lau, ka pala o ke kumu, ka maʻi ʻūlū, ʻo nā pepeke nui ka ilo pulupulu a me ka aphis.
Hiki iā mākou ke koho i 300-375ml no ka hectare o 2.5% Deltamethrin + 600-700ml no ka hectare o 18% Tebucanozole + 9% Thifluzamide SC+ 150-180ml o 0.01% Brassinolide SL, Pīpī ʻana.
Ka manawa hoʻouna: Mei-23-2022
