Nkhani
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Fungicides wa soya: zomwe muyenera kudziwa
Ndasankha kuyesa mankhwala ophera fungicide pa soya koyamba chaka chino. Ndingadziwe bwanji kuti ndigwiritse ntchito mankhwala ophera fungicide ati, ndipo ndiyenera kuwagwiritsa ntchito liti? Ndingadziwe bwanji ngati angathandize? Gulu la alangizi a mbewu ovomerezeka ku Indiana omwe akuyankha funsoli akuphatikizapo Betsy Bower, Ceres Solutions, Lafayette; Jamie Bultemei...Werengani zambiri -
Ntchentche
Ntchentche, (dongosolo la Diptera), iliyonse mwa tizilombo tambirimbiri tomwe timadziwika ndi kugwiritsa ntchito mapiko awiri okha pouluka ndi kuchepetsa mapiko awiri achiwiri kukhala timizere (otchedwa halteres) omwe amagwiritsidwa ntchito polinganiza. Mawu akuti ntchentche amagwiritsidwa ntchito kwambiri pa tizilombo tating'onoting'ono touluka. Komabe, mu entomolog...Werengani zambiri -
Kukana Mankhwala Ophera Udzu
Kukana mankhwala ophera udzu kumatanthauza kuthekera kobadwa nako kwa mtundu wa udzu kuti upulumuke mu mankhwala ophera udzu omwe anthu oyambawo anali okhudzidwa nawo. Mtundu wa zomera ndi gulu la zomera mkati mwa mtundu womwe uli ndi makhalidwe achilengedwe (monga kukana mankhwala enaake ophera udzu) omwe si ofala kwa ...Werengani zambiri -
Fungicide
Fungicide, yomwe imatchedwanso antimycotic, mankhwala aliwonse oopsa omwe amagwiritsidwa ntchito kupha kapena kuletsa kukula kwa bowa. Mafangayi nthawi zambiri amagwiritsidwa ntchito poletsa bowa wa parasitic omwe amachititsa kuwonongeka kwachuma kwa mbewu kapena zomera zokongoletsera kapena kuyika pachiwopsezo thanzi la ziweto kapena anthu. Zambiri zaulimi ndi ...Werengani zambiri -
Matenda a Zomera ndi Tizilombo Toyambitsa Matenda
Kuwonongeka kwa zomera komwe kumachitika chifukwa cha mpikisano wochokera ku udzu ndi tizilombo tina kuphatikizapo mavairasi, mabakiteriya, bowa, ndi tizilombo kumawononga kwambiri zokolola zawo ndipo nthawi zina zimatha kuwononga mbewu kwathunthu. Masiku ano, zokolola zodalirika zimapezeka pogwiritsa ntchito mitundu yolimbana ndi matenda, zachilengedwe...Werengani zambiri -
Ubwino wa Mankhwala Ophera Tizilombo ku Zitsamba
Tizilombo toyambitsa matenda nthawi zonse timakhala nkhawa pa ulimi ndi minda ya kukhitchini. Mankhwala ophera tizilombo amakhudza thanzi kwambiri ndipo asayansi akuyembekezera njira zatsopano zopewera kuwonongeka kwa mbewu. Mankhwala ophera tizilombo ochokera ku zitsamba akhala njira yatsopano yopewera tizilombo kuti tisawononge...Werengani zambiri -
Kukana Mankhwala Ophera Udzu
Kukana mankhwala ophera udzu kumatanthauza kuthekera kobadwa nako kwa mtundu wa udzu kuti upulumuke mu mankhwala ophera udzu omwe anthu oyambawo anali okhudzidwa nawo. Mtundu wa zomera ndi gulu la zomera mkati mwa mtundu womwe uli ndi makhalidwe achilengedwe (monga kukana mankhwala enaake ophera udzu) omwe si ofala kwa ...Werengani zambiri -
Alimi aku Kenya akulimbana ndi kugwiritsa ntchito mankhwala ophera tizilombo kwambiri
NAIROBI, Novembala 9 (Xinhua) — Mlimi wamba waku Kenya, kuphatikizapo omwe ali m'midzi, amagwiritsa ntchito malita angapo a mankhwala ophera tizilombo chaka chilichonse. Kugwiritsa ntchito kwakhala kukuchulukirachulukira pazaka zambiri pambuyo pa kubuka kwa tizilombo ndi matenda atsopano pamene dziko la kum'mawa kwa Africa likulimbana ndi zotsatirapo zoyipa za kusintha kwa nyengo...Werengani zambiri -
Kuwonekera kwa arthropods ku Cry2A yopangidwa ndi mpunga wa Bt
Malipoti ambiri akukhudza tizilombo titatu tofunika kwambiri ta Lepidoptera, tomwe ndi Chilo suppressalis, Scirpophaga incertulas, ndi Cnaphalocrocis medinalis (onse ndi Crambidae), omwe ndi omwe amakhudzidwa ndi mpunga wa Bt, ndi tizilombo tiwiri tofunika kwambiri ta Hemiptera, tomwe ndi Sogatella furcifera ndi Nilaparvata lugens (bo...Werengani zambiri -
Kuchepetsa thonje la Bt poyizoni wa mankhwala ophera tizilombo
Kwa zaka khumi zapitazi pomwe alimi ku India akhala akubzala thonje la Bt - mtundu wa transgenic wokhala ndi majini ochokera ku bacterium ya nthaka ya Bacillus thuringiensis yomwe imapangitsa kuti isavutike ndi tizilombo - kugwiritsa ntchito mankhwala ophera tizilombo kwachepetsedwa ndi theka, kafukufuku watsopano wasonyeza. Kafukufukuyu adapezanso kuti kugwiritsa ntchito Bt c...Werengani zambiri -
Kusanthula kwa mgwirizano wa majini onse pa mphamvu ya chitetezo chochokera ku MAMP komanso kukana malo ofunikira pa tsamba mu manyuchi
Zipangizo za zomera ndi tizilombo toyambitsa matenda. Kujambula ma mapu a gulu la manyuchi lotchedwa sorghum conversion population (SCP) kunaperekedwa ndi Dr. Pat Brown ku University of Illinois (tsopano ku UC Davis). Linafotokozedwa kale ndipo ndi gulu la mizere yosiyanasiyana yomwe inasinthidwa kukhala photoperiod-inse...Werengani zambiri -
Gwiritsani ntchito fungicides kuti muteteze ku matenda a apulo musanayambe nthawi yoyembekezera.
Kutentha komwe kukuchitika ku Michigan pakadali pano sikunachitikepo ndipo kwadabwitsa anthu ambiri pankhani ya momwe maapulo akukulira mofulumira. Popeza mvula ikuyembekezeredwa Lachisanu, pa 23 Marichi, komanso sabata yamawa, ndikofunikira kuti mitundu yomwe ingakhudzidwe ndi nkhanambo itetezedwe ku matenda oyamba a nkhanambo...Werengani zambiri
