Brazil txoj cai tshiab los tswj kev siv tshuaj tua kab thiamethoxam hauv thaj av qab zib pom zoo kom siv cov dej ntws.

Tsis ntev los no, Brazilian Environmental Protection Agency Ibama tau tshaj tawm cov cai tshiab los kho kev siv tshuaj tua kab uas muaj cov khoom xyaw thiamethoxam.Txoj cai tshiab tsis txwv tsis pub siv cov tshuaj tua kab tag nrho, tab sis txwv tsis pub siv cov tshuaj tsis raug ntawm thaj chaw loj ntawm ntau cov qoob loo los ntawm lub dav hlau lossis tsheb laij teb vim tias cov tshuaj tsuag nyiam ya thiab cuam tshuam rau muv thiab lwm yam pollinators hauv ecosystem.
Rau cov qoob loo tshwj xeeb xws li qab zib pas nrig, Ibama pom zoo kom siv thiamethoxam uas muaj cov tshuaj tua kab hauv cov txheej txheem thov siv xws li cov dej ntws los kom tsis txhob muaj kev pheej hmoo.Agronomic kws txawj hais tias drip irrigation muaj kev nyab xeeb thiab zoo siv tshuaj tua kab rau cov qoob loo, Nws yog siv los tswj cov kab mob loj xws li Mahanarva fimbriolata, termites Heterotermes tenuis, qab zib borers (Diatraea saccharalis) thiab qab zib weevil (Sphenophorus).Tsawg cuam tshuam rau cov qoob loo.

Cov kev cai tshiab ua kom pom tseeb tias cov tshuaj tua kab thiamethoxam tsis tuaj yeem siv rau lub Hoobkas tshuaj kho cov khoom siv cog qoob loo.Txawm li cas los xij, tom qab cog qoob loo, cov tshuaj tua kab tseem tuaj yeem siv rau hauv av los ntawm drip irrigation systems.Txhawm rau kom tsis txhob cuam tshuam cov kab tsuag pollinator, nws raug nquahu kom tso tseg 35-50 hnub ntawm thawj drip irrigation thiab tom ntej.
Tsis tas li ntawd, txoj cai tshiab yuav tso cai rau kev siv cov tshuaj tua kab thiamethoxam rau cov qoob loo xws li pob kws, nplej, taum pauv thiab qab zib, siv ncaj qha rau hauv av lossis nplooj ntoo, thiab rau kev kho cov noob, nrog rau cov xwm txheej tshwj xeeb xws li kev noj tshuaj thiab hnub tas sij hawm yuav tsum tau ua ntxiv. qhia meej.

Cov kws tshaj lij tau taw qhia tias kev siv cov tshuaj precision xws li drip irrigation tuaj yeem tsis tsuas yog tswj cov kab mob thiab kab tsuag zoo dua, tab sis kuj ua kom muaj kev nyab xeeb ntawm kev ua haujlwm thiab txo cov tib neeg cov tswv yim, uas yog cov cuab yeej tshiab thiab muaj txiaj ntsig zoo.Piv nrog rau kev siv tshuaj tsuag, drip irrigation zam lub peev xwm ntawm cov kua drift rau ib puag ncig thiab cov neeg ua haujlwm, thiab ntau tus phooj ywg ib puag ncig thiab kev lag luam thiab siv tau rau tag nrho.