Chlorothalonil

Chlorothalonil ndi mankhwala ophera tizilombo toyambitsa matenda

Chlorothalonil ndi Mancozeb ndi mankhwala oteteza ku fungicides omwe adatuluka m'ma 1960 ndipo adanenedwa koyamba ndi TURNER NJ kumayambiriro kwa zaka za m'ma 1960. Chlorothalonil idagulitsidwa mu 1963 ndi Diamond Alkali Co. (kenako idagulitsidwa ku ISK Biosciences Corp. yaku Japan) kenako idagulitsidwa ku Zeneca Agrochemicals (tsopano Syngenta) mu 1997. Chlorothalonil ndi mankhwala oteteza ku fungicide okhala ndi ma spectrum ambiri okhala ndi malo ambiri ogwirira ntchito, omwe angagwiritsidwe ntchito popewa ndi kuchiza matenda a udzu. Kukonzekera kwa chlorothalonil kudalembedwa koyamba ku United States mu 1966 ndipo kumagwiritsidwa ntchito pa udzu. Patatha zaka zingapo, idalandira kulembetsa kwa fungicide ya mbatata ku United States. Unali mankhwala oyamba oteteza ku fungicide omwe adavomerezedwa kuti azidya zakudya ku United States. Pa Disembala 24, 1980, mankhwala okonzedwa bwino a suspension concentrate (Daconil 2787 Flowable Fungicide) adalembetsedwa. Mu 2002, mankhwala opangidwa ndi udzu omwe kale anali olembetsedwa a Daconil 2787 W-75 TurfCare anatha ntchito ku Canada, koma mankhwala opangidwa ndi suspension concentrate akhala akugwiritsidwa ntchito mpaka pano. Pa Julayi 19, 2006, mankhwala ena a chlorothalonil, Daconil Ultrex, adalembetsedwa koyamba.

Misika isanu yapamwamba ya chlorothalonil ili ku United States, France, China, Brazil, ndi Japan. United States ndiye msika waukulu kwambiri. Mbewu zazikulu zomwe zimagwiritsidwa ntchito ndi zipatso, ndiwo zamasamba ndi tirigu, mbatata, ndi zina zomwe sizimalimidwa. Mbewu za chimanga ndi mbatata zaku Europe ndizo mbewu zazikulu za chlorothalonil.

Mankhwala oteteza bowa amatanthauza kupopera pamwamba pa chomera matenda asanayambe kufalikira kuti apewe kufalikira kwa tizilombo toyambitsa matenda, kuti chomeracho chitetezedwe. Mankhwala oteteza bowa oterewa adapangidwa kale ndipo akhala akugwiritsidwa ntchito kwa nthawi yayitali.

Chlorothalonil ndi mankhwala ophera tizilombo toyambitsa matenda omwe ali ndi mphamvu zambiri zoteteza. Amagwiritsidwa ntchito makamaka popopera masamba kuti apewe ndikuletsa matenda osiyanasiyana a mbewu zosiyanasiyana monga ndiwo zamasamba, mitengo ya zipatso ndi tirigu, monga matenda oyamba, matenda ochedwa, matenda a downy mildew, matenda a powdery mildew, madontho a masamba, ndi zina zotero. Amagwira ntchito poletsa kumera kwa spores ndi kuyenda kwa zoospores.

Kuphatikiza apo, chlorothalonil imagwiritsidwanso ntchito ngati chotetezera matabwa komanso chowonjezera utoto (choletsa dzimbiri).