Mancozeb

Cholinga cha kupewa ndi kuwongolera

Mancozebzimagwiritsa ntchito kupewa ndi kulamulira masamba downy mildew, anthracnose, bulauni banga matenda, etc. Pakali pano, ndi yabwino wothandizira kulamulira oyambirira choipitsa wa tomato ndi mochedwa choipitsa wa mbatata, ndi ulamuliro zotsatira za 80% ndi 90% motero. Nthawi zambiri amapopera masamba, kamodzi pa masiku 10 mpaka 15.

Pofuna kuthana ndi choipitsa, anthracnose ndi matenda a masamba mu tomato, biringanya ndi mbatata, gwiritsani ntchito 80% ufa wonyowa pamlingo wa 400 mpaka 600. Utsi koyambirira kwa matendawa, 3 mpaka 5 motsatana.

(2) Pofuna kupewa kunyowa kwa mbande ndi kuvulala kwa mbande, thirani 80% ufa wonyowa panjere pamlingo wa 0.1-0.5% wa kulemera kwa mbeu.

(3) Pofuna kuthana ndi downy mildew, anthracnose ndi matenda a mawanga a bulauni mu mavwende, tsitsani madzi osungunuka maulendo 400 mpaka 500 kwa maulendo 3 mpaka 5 zotsatizana.

(4) Pofuna kuthana ndi downy mildew mu kabichi waku China ndi kale komanso matenda amtundu wa udzu winawake, thirirani ndi 500 mpaka 600 madzi osungunuka kwa 3 mpaka 5 motsatizana.

(5) Kuti muchepetse matenda a anthracnose ndi mawanga ofiira a nyemba zaimpso, tsitsani madzi owiritsa 400 mpaka 700 kwa 2 mpaka 3 motsatizana.

Ntchito zazikulu

Izi ndi mankhwala opha tizilombo toyambitsa matenda oteteza masamba, omwe amagwiritsidwa ntchito kwambiri mumitengo ya zipatso, ndiwo zamasamba ndi mbewu zakumunda. Imatha kuthana ndi matenda oyamba ndi mafangasi ofunikira a masamba, monga dzimbiri mu tirigu, matenda a mawanga aakulu mu chimanga, phytophthora blight mu mbatata, matenda a black star m’mitengo ya zipatso, anthracnose, ndi zina zotero. Chifukwa cha ntchito zake zambiri komanso kugwiritsa ntchito bwino, yakhala yofunikira kwambiri pakati pa ma fungicides omwe si a systemic zoteteza. Mukagwiritsidwa ntchito mosinthana kapena kusakaniza ndi systemic fungicides, zimatha kukhala ndi zotsatira zina.

2. Mankhwala oteteza mafangasi ambiri. Amagwiritsidwa ntchito kwambiri m'mitengo yazipatso, ndiwo zamasamba ndi mbewu zakumunda, ndipo amatha kuteteza ndikuwongolera matenda ambiri ofunikira amasamba. Kupopera mbewu mankhwalawa 500 mpaka 700 kuchepetsedwa 70% ufa wonyowa kumatha kuwononga choipitsa choyambirira, nkhungu yotuwa, downy mildew ndi anthracnose wa mavwende. Itha kugwiritsidwanso ntchito kuteteza ndi kuwongolera matenda a black star, matenda a red star, anthracnose ndi matenda ena pamitengo ya zipatso.