ʻO nā hopena o kekahi mau hoʻāʻo ʻōmaʻomaʻo i kēia hoʻoilo a me ka pūnāwai a me nā hopena o nā haʻawina kula i kēia kau ulu i hōʻike i ka pale ʻana i ka Palmer Palm vegetable dicamba (DR).Ua hoʻokumu ʻia kēia mau heluna DR ma Crockett, Gibson, Madison, Shelby a me Warren a me nā kalana ʻē aʻe paha.
ʻO ke kiʻekiʻe o ke kū'ē dicamba he haʻahaʻa, ma kahi o 2.5 manawa.I kēlā me kēia mahina ʻai, hoʻomaka ke kiʻekiʻe o ka infestation me kahi ʻeke liʻiliʻi, kahi i lūlū ʻia kahi mea kanu makua wahine i 2019, a uhi ʻia kahi ʻāpana i kekahi mau ʻeka.Hiki ke hoʻohālikelike ʻia kēia me ka mea kanu Palmer mar glyphosate-resistant mua i loaʻa ma Tennessee i ka makahiki 2006. I kēlā manawa, ʻoi aku ka maikaʻi o ka mālama ʻana o ka hapa nui o nā mea kanu i ka glyphosate Palmer mar, ʻoiai nā mea kanu ʻē aʻe Ua ʻike ke kanaka i kahi pakele i kāna māla.
I ka wā i ʻike mua ʻia ai nā huaʻai Xtend ma ke kahua, ʻaʻole ia he mea maʻamau ka pakele ʻana o nā huaʻai Palmer mar i ka dicamba, kahi i hele hewa ma nā wahi āpau.E ulu liʻiliʻi a ʻaʻole ulu kēia mau pakele i loko o 2 a 3 mau pule.A laila, uhi ʻia ka hapa nui o nā mea kanu e nā mea kanu a ʻaʻole e ʻike hou ʻia.Eia naʻe, i kēia lā ma kekahi mau wahi, e hoʻomaka hou nā kīʻaha DR Palmer mar i nā helu i ʻike ʻole ʻia i loko o 10 mau lā.
ʻO kekahi o nā hiʻohiʻona kūikawā o kēia haʻawina ʻo ia ka nānā ʻana i nā mauʻu DR i loko o nā hale ʻōmaʻomaʻo ma ke Kulanui o Tennessee a me ke Kulanui o Arkansas.Hōʻike kēia haʻawina ʻo ka ʻae ʻana o Palmer kahi mea kanu i pakele i ka dicamba mai nā māla he nui ma Tennessee i 2019 ʻo Palmer kahi mea kanu i ulu ʻia mai nā hua i hōʻiliʻili ʻia mai Arkansas a me Tennessee he ʻumi makahiki i hala.ʻOi aku ma mua o 2 mau manawa.Ua hōʻike ʻia nā hoʻāʻo ʻōmaʻomaʻo ma hope o Texas Tech University he 2.4 manawa ʻoi aku ka hoʻomanawanui ʻana o nā heluna kanaka mai Shelby County, Tennessee i ka dicamba ma mua o Parma a ma Lubbock, Texas (Figure 1).
Ua mālama ʻia nā hoʻokolohua hoʻāʻo ma luna o kekahi o nā poʻe i manaʻo ʻia ʻo Palmer ma Tennessee.Hōʻike nā hopena o kēia mau hoʻāʻo kahua i nā pale i loko o ka hale kōmaena, e hōʻike ana i ka 1x dicamba application rate (0.5 lb/A) i kapa ʻia e hiki ke hāʻawi i 40-60% Palmer mar vegetable control.Ma kēia mau ho'āʻo, ua hoʻomaikaʻi iki ka hoʻohana ʻana o dicamba i ka mana (Nā Kiʻi 2, 3).
ʻO ka mea hope loa, hōʻike ka nui o nā mea kanu e pono lākou e pīpī i ka mea kanu Palmer mar like 3 a 4 mau manawa e loaʻa ai ka mana.ʻO ka mea pōʻino, hōʻike kēia mau hōʻike e hōʻike ana ka hale ʻōmaʻomaʻo a me nā haʻawina kula i ka mea a kekahi mau mea aʻoaʻo, nā mea kūʻai aku a me nā mea mahiʻai ma Tennessee e ʻike ai i nā kula.
No laila, ʻo ka manawa kēia e makaʻu ai?ʻAʻole.Eia naʻe, ua hiki i ka manawa e loiloi hou i ka mālama ʻana i ka weed.I kēia manawa, ʻoi aku ka nui o ka mālama ʻana i ka herbicide ma mua o ka wā.ʻO ia ke kumu i koʻikoʻi ai mākou i ka hoʻohana ʻana i nā herbicides hooded i ka pulupulu, e like me ka paraquat, glufosinate, Valor, diuron, metazox a me MSMA.
Ke nānā nei mākou i ka 2021, pono ia e hoʻohana pono i ke koena PRE spray ma Palmer.Eia kekahi, pono e hoʻohana koke ʻia ke kūʻokoʻa ma hope o ka hoʻohana ʻana o dicamba e hoʻopau i ka pakele.ʻO ka hope, ua hōʻike ʻia nā haʻawina mua e ʻoi aku ka pale ʻana o DR Palmer mar i ka 2,4-D.
No laila, hoʻolilo ʻo Liberty i ka herbicide koʻikoʻi i ka ʻōnaehana hoʻokele weed o Xtend a me Enlist mea kanu.
He loea ʻo Kauka Larry Steckel ma ke Kulanui o Tennessee.E nānā i nā moʻolelo mea kākau a pau ma aneʻi.