Lamulo latsopano la ku Brazil loletsa kugwiritsa ntchito mankhwala ophera tizilombo a thiamethoxam m'minda ya nzimbe limalimbikitsa kugwiritsa ntchito ulimi wothirira

Posachedwapa, bungwe la Brazilian Environmental Protection Agency Ibama linapereka malamulo atsopano oti asinthe kagwiritsidwe ntchito ka mankhwala ophera tizilombo okhala ndi thiamethoxam.Malamulo atsopanowa saletsa kugwiritsira ntchito mankhwala ophera tizilombo, koma amaletsa kupopera mbewu molakwika kwa madera akuluakulu pa mbewu zosiyanasiyana ndi ndege kapena mathirakitala chifukwa kupoperako kumakonda kugwedezeka ndi kuwononga njuchi ndi tizilombo toyambitsa matenda m’chilengedwe.
Kwa mbewu zinazake monga nzimbe, Ibama amalimbikitsa kugwiritsa ntchito thiamethoxam yomwe ili ndi mankhwala ophera tizirombo m'njira zolondola monga kuthirira kwadontho kuti tipewe ngozi.Akatswiri a zaulimi amati kuthirira kodontha kutha kugwiritsa ntchito mankhwala ophera nzimbe motetezeka komanso moyenera, Amagwiritsidwa ntchito pothana ndi tizirombo tambiri monga Mahanarva fimbriolata, chiswe Heterotermes tenuis, borers (Diatraea saccharalis) ndi nzimbe (Sphenophorus levis).Kuchepa kwa mbewu.

Malamulo atsopanowa akufotokoza momveka bwino kuti mankhwala ophera tizilombo a thiamethoxam sangathenso kugwiritsidwa ntchito popangira mankhwala a fakitale a zinthu zoweta nzimbe.Komabe, nzimbe zikakololedwa, mankhwala ophera tizirombo amatha kuthiridwabe m’nthaka kudzera m’njira zothirira m’dontho.Pofuna kupewa kukhudza tizilombo toononga mungu, ndi bwino kuti masiku 35-50 atsale pakati pa kuthirira kodontha koyamba ndi kotsatira.
Kuphatikiza apo, malamulo atsopanowa adzalola kugwiritsa ntchito mankhwala ophera tizilombo a thiamethoxam pambewu monga chimanga, tirigu, soya ndi nzimbe, zomwe zimagwiritsidwa ntchito mwachindunji kunthaka kapena masamba, komanso pochiza mbewu, ndi mikhalidwe yeniyeni monga mlingo ndi tsiku lotha ntchito. kufotokozedwa.

Akatswiri adanenanso kuti kugwiritsa ntchito mankhwala olondola monga ulimi wothirira kudontha sikungangowongolera bwino matenda ndi tizilombo toononga, komanso kuonetsetsa chitetezo chogwira ntchito ndikuchepetsa kuyika kwa anthu, chomwe ndiukadaulo watsopano wokhazikika komanso wogwira mtima.Poyerekeza ndi kupopera mbewu mankhwalawa, kuthirira kudontha kumapewa kuvulaza komwe kumabwera chifukwa cha kutengeka kwamadzi ku chilengedwe ndi ogwira ntchito, ndipo ndikochezeka ndi zachilengedwe komanso kopanda ndalama komanso kothandiza ponseponse.