CLEMSON, SC - Kulamulira ntchentche ndi vuto kwa alimi ambiri a ng'ombe za ng'ombe m'dziko lonselo. Ntchentche za m'nyanga (Haematobia irritans) ndi tizilombo towononga kwambiri chuma cha alimi a ng'ombe, zomwe zimapangitsa kuti makampani a ziweto aku US awononge ndalama zokwana $1 biliyoni pachaka chifukwa cha kunenepa, kutaya magazi, komanso kupsinjika maganizo. 1,2 Bukuli lithandiza alimi a ng'ombe za ng'ombe kupewa kutayika kwa ulimi komwe kumachitika chifukwa cha ntchentche za m'nyanga mwa ng'ombe.
Ntchentche zimatenga masiku 10 mpaka 20 kuti zimere kuyambira dzira mpaka kukula, ndipo moyo wa munthu wamkulu ndi pafupifupi sabata imodzi mpaka ziwiri ndipo amadya nthawi 20 mpaka 30 patsiku. 3 Ngakhale kuti ma tag a makutu opangidwa ndi tizilombo toyambitsa matenda amapangitsa kuti kulamulira ntchentche kukhale kosavuta. Zolinga zoyang'anira ntchentche, wopanga aliyense ayenerabe kupanga zisankho zokhudzana ndi kulamulira ntchentche. Pali mitundu inayi ikuluikulu ya ma tag a makutu ophera tizilombo kutengera zosakaniza zake zogwira ntchito. Izi zikuphatikizapo mankhwala ophera tizilombo a organophosphorus (diazinon ndi fenthion), mankhwala ophera tizilombo a synthetic pyrethrin (nyama ya nkhosa cyhalothrin ndi cyfluthrin), abamectin (mtundu watsopano), ndi mankhwala atatu ophera tizilombo omwe amagwiritsidwa ntchito kwambiri. Mtundu wachinayi wa mankhwala ophera tizilombo. Zitsanzo za kuphatikiza mankhwala ophera tizilombo zimaphatikizapo kuphatikiza kwa organophosphate ndi pyrethroid yopangidwa kapena kuphatikiza kwa pyrethroid yopangidwa ndi abamectin.
Ma tag oyamba a khutu analipo okhamankhwala ophera tizilombo otchedwa pyrethroidndipo zinali zothandiza kwambiri. Patangopita zaka zochepa, ntchentche za nyanga zinayamba kukana mankhwala ophera tizilombo a pyrethroid. Chinthu chachikulu chomwe chimayambitsa vutoli ndi kugwiritsa ntchito kwambiri komanso kugwiritsa ntchito molakwika zilembo za pyrethroid. 4.5 Kuyang'anira kukana kuyenera kuphatikizidwa mu chilichonsekulamulira ntchentchepulogalamu, mosasamala kanthu za mankhwala kapena njira yogwiritsira ntchito. Pali milandu yotsutsana ndi mankhwala ambiri ophera tizilombo omwe amagwiritsidwa ntchito poletsa ntchentche za nyanga, makamaka pyrethroids ndi mankhwala ophera tizilombo a organophosphate. North Dakota inali yoyamba kupereka malangizo othandizira kupewa kukula kwa ntchentche za nyanga zomwe sizimadwala mankhwala ophera tizilombo. 6 Kusintha kwa malangizowa kwafotokozedwa pansipa kuti kuthandize bwino kuwongolera ntchentche za nyanga pamene kuletsa kukula kwa ntchentche zomwe sizimadwala mankhwala ophera tizilombo.
FARGO, ND - Ntchentche zooneka ngati nkhope, ntchentche za horn ndi ntchentche zokhazikika ndi tizilombo tomwe timachiritsidwa kwambiri komanso tomwe timachiritsidwa kwambiri mumakampani a ziweto ku North Dakota. Ngati sitisamala, tizilomboti tingawononge kwambiri ziweto. Mwamwayi, akatswiri a North Dakota State University Extension amati njira zoyenera zoyang'anira tizilombo zitha kupereka mphamvu yothandiza. Ngakhale kuti tizilombo tomwe timagwiritsidwa ntchito pamodzi […]
Yunivesite ya AUBURN, Alabama. Ntchentche zotchedwa slingshot zimatha kukhala vuto lalikulu kwa ziweto za ng'ombe nthawi yachilimwe. Njira zodziwika bwino zopewera ntchentche zimaphatikizapo kupopera, kuchotsa madzi m'thupi ndi kufumbi. Komabe, chizolowezi chaposachedwa cha ziweto ndikupeza njira zina zopewera ntchentche. Njira imodzi yomwe yatchuka kwambiri padziko lonse lapansi ndi kugwiritsa ntchito adyo, sinamoni ndi […]
LINCOLN, Nebraska. Kumapeto kwa Ogasiti ndi Seputembala nthawi zambiri kumakhala nthawi yomwe nyengo ya ntchentche zodyetsera ziweto iyenera kutha. Komabe, m'zaka zingapo zapitazi, nthawi yophukira yakhala yotentha nthawi zonse, nthawi zina imafika kumayambiriro kwa Novembala, ndipo ntchentche zakhala zikuvutitsa kwa nthawi yayitali kuposa masiku onse. Malinga ndi kulosera kwa nyengo zambiri, nthawi yophukira ikubwerayi sidzakhala yosiyana. Ngati […]
MARYVILLE, Kansas. Sikuti ntchentche zimangokwiyitsa kokha, komanso zimathanso kukhala zoopsa, kaya zimayambitsa kuluma kopweteka komwe kumasokoneza luso la kavalo wanu lokwera, kapena zimafalitsa matenda kwa akavalo ndi ng'ombe. "Ntchentche zimakhala zovuta komanso zovuta kuzilamulira. Nthawi zambiri sitingathe kuzilamulira bwino, timango […]
Nthawi yotumizira: Juni-17-2024