Kodi permetrin ndi chiyani?

Kodi permetrin ndi chiyani?
thonje, Ukhondo tizirombo, tiyi, masamba,

Permethrin ndi mankhwala ophera tizilombo tochepa.Kachitidwe kake kamakhala makamaka kukhudza kupha ndi kupha m'mimba, osatulutsa fumigation, ma insecticidal sipekitiramu ambiri, ndipo ndikosavuta kuwola ndikulephera mumchere wamchere ndi dothi.Ili ndi kawopsedwe kakang'ono kwa nyama zapamwamba ndipo imawola mosavuta ndi kuwala kwa dzuwa.
Itha kugwiritsidwa ntchito polimbana ndi tizirombo tosiyanasiyanathonje, masamba, tiyi ndi mitengo ya zipatso, makamaka yoyenera kulamulira tizirombo taukhondo.
Malangizo
1. Katetezedwe ndi kuwononga tizirombo ta thonje Mazira a thonje akafika pachimake, thirirani ndi 1000-1250 nthawi za 10% EC.Mlingo womwewo ukhoza kulamulira bollworm wofiira, bridge worm, tsamba lodzigudubuza.Thonje nsabwe za m'masamba ndi sprayed ndi 2000-4000 nthawi 10% EC pa zochitika nthawi, amene angathe kulamulira mmera nsabwe za m'masamba.Mlingo uyenera kuwonjezeredwa kuti muchepetse nsabwe za m'masamba.
2. Kupewa ndi kuwononga tizirombo zamasamba Kabichi mbozi ndi njenjete za diamondback zimayendetsedwa patsogolo pa 3rd instar, ndikupopera ndi 1000-2000 nthawi za 10% EC.Pa nthawi yomweyo akhoza kuchiza masamba nsabwe za m'masamba.
3. Katetezedwe ndi kuwononga tizirombo ta mitengo ya zipatso Opera masamba a Citrus amawapopera madzi 10% EC 1250-2500 nthawi atangoyamba kumene kutulutsa mphukira, zomwe zimathanso kuthana ndi tizirombo ta citrus monga zipatso za citrus, koma sizigwira ntchito ku nthata za citrus.Pichesi yaing'ono yamtima nyongolotsi imayendetsedwa pa nthawi yobereketsa dzira ndipo pamene dzira ndi zipatso zimafika 1%, utsi ndi 1000-2000 nthawi za 10% EC.Mlingo womwewo ndi nthawi zimathanso kuwongolera mphutsi za mapeyala, komanso kuwongolera tizirombo tamitengo ya zipatso monga njenjete zamasamba ndi nsabwe za m'masamba, koma sizigwira ntchito polimbana ndi akangaude.
4. Kupewa ndi kuwongolera tizirombo ta tiyi Kuwongolera tiyi inchworm, njenjete zabwino za tiyi, mbozi ya tiyi ndi njenjete, kupoperani ndi madzi 2500-5000 nthawi ya 2-3 instar kukula kwa mphutsi, komanso kuwongolera mphutsi zobiriwira. nsabwe za m'masamba.
5. Kupewa ndi kuwononga tizilombo towononga fodya Pichesi wobiriwira nsabwe za m'masamba ndi mbozi ya fodya ayenera kupopera mbewu mankhwalawa mofanana ndi madzi a 10-20mg/kg pa nthawi yomwe yachitika.
6. Kupewa ndi kuletsa tizirombo taukhondo
(1) Ntchentche yapanyumba imapopera 10% EC 0.01-0.03ml/m3 pamalo omwe amakhala, omwe amatha kupha ntchentchezo.
(2) Udzudzu umathiridwa ndi 10% EC 0.01-0.03ml/m3 m'malo ochitira udzudzu.Kwa mphutsi, 10% EC ikhoza kusakanizidwa mu 1mg/L ndikupopera m'thambi momwe mphutsi zimaswana, zomwe zimatha kupha mphutsi.
(3) mphemvu amapopera pamwamba pa mphemvu ntchito malo, ndipo mlingo ndi 0.008g/m2.
(4) Chiswe chimapopera pa nsungwi ndi matabwa zomwe zimaonongeka mosavuta ndi chiswe, kapena kubayidwa mumagulu a nyerere, pogwiritsa ntchito nthawi 800-1000 za 10% EC.