Mancozeb

Cholinga cha kupewa ndi kuwongolera

Mancozebimagwiritsidwa ntchito makamaka popewa ndi kuwongolera matenda a downy mildew a masamba, anthracnose, matenda a brown spot, ndi zina zotero. Pakadali pano, ndi njira yabwino kwambiri yothanirana ndi matenda oyamba a phwetekere ndi matenda otsiriza a mbatata, omwe ali ndi zotsatira zowongolera pafupifupi 80% ndi 90% motsatana. Nthawi zambiri imapopera masamba, kamodzi pa masiku 10 mpaka 15 aliwonse.

Pofuna kuthana ndi matenda a blight, anthracnose ndi mawanga a masamba mu tomato, biringanya ndi mbatata, gwiritsani ntchito ufa wonyowa wa 80% pa chiŵerengero cha nthawi 400 mpaka 600. Thirani kumayambiriro kwa matendawa, katatu mpaka kasanu motsatizana.

(2) Pofuna kupewa ndi kuletsa kunyowa kwa mbande ndi matenda a mbande m'masamba, ikani ufa wonyowa wa 80% ku mbewuzo pamlingo wa 0.1-0.5% wa kulemera kwa mbewu.

(3) Kuti muchepetse downy mildew, anthracnose ndi matenda a bulauni m'mavwende, thirani ndi yankho lochepetsedwa madzi nthawi 400 mpaka 500 kwa nthawi zitatu mpaka zisanu motsatizana.

(4) Kuti muchepetse downy mildew mu kabichi waku China ndi kale ndi matenda a madontho mu seleri, thirani ndi yankho lochepetsedwa madzi ka 500 mpaka 600 kwa nthawi zitatu mpaka zisanu motsatizana.

(5) Kuti muchepetse matenda a anthracnose ndi mawanga ofiira a nyemba za impso, thirani ndi madzi osungunuka okwana 400 mpaka 700 kwa nthawi ziwiri kapena zitatu motsatizana.

Ntchito zazikulu

Mankhwalawa ndi mankhwala ophera bowa omwe amagwiritsidwa ntchito kwambiri poteteza masamba, omwe amagwiritsidwa ntchito kwambiri m'mitengo ya zipatso, ndiwo zamasamba ndi mbewu zakumunda. Amatha kuletsa matenda osiyanasiyana ofunikira a bowa m'masamba, monga dzimbiri mu tirigu, matenda a mabala akuluakulu m'chimanga, matenda a phytophthora mu mbatata, matenda a black star m'mitengo ya zipatso, anthracnose, ndi zina zotero. Mlingo wake ndi 1.4-1.9kg (chogwiritsidwa ntchito) pa hekitala. Chifukwa cha kugwiritsa ntchito kwake kosiyanasiyana komanso kugwira ntchito bwino, wakhala mtundu wofunikira pakati pa mankhwala ophera bowa omwe si a systemic. Akagwiritsidwa ntchito mosinthana kapena kusakanikirana ndi mankhwala ophera bowa m'thupi, amatha kukhala ndi zotsatirapo zina.

2. Fungivi yoteteza ku matenda a fungal. Imagwiritsidwa ntchito kwambiri m'mitengo ya zipatso, ndiwo zamasamba ndi m'minda, ndipo imatha kupewa ndi kulamulira matenda ambiri ofunikira a bowa m'masamba. Kupopera ufa wonyowa wa 70% wochepetsedwa nthawi 500 mpaka 700 kungathandize kuthana ndi matenda oyamba ndi bowa, nkhungu ya imvi, downy mildew ndi anthracnose m'masamba. Ingagwiritsidwenso ntchito kupewa ndi kulamulira matenda a black star, matenda a red star, anthracnose ndi matenda ena pamitengo ya zipatso.