Domin rage barnar da kwari ke yiwa amfanin gona, mun samar da adadi mai yawa na kwari. Tsarin aikin kwari iri daban-daban iri daya ne, to yaya zamu zabi wadanda suka dace da amfanin mu sosai? A yau zamuyi magana game da magungunan kwari guda biyu tare da makamantan hanyoyin aiwatarwa ： imidacloprid da thiamethoxam.
Mu manoma mun saba da imidacloprid, don haka thiamethoxam sabon tauraro ne mai kashe kwari. Menene amfaninta akan tsoffin tsara?
01. Binciken banbanci na imidacloprid da thiamethoxam
Kodayake hanyoyin aikin guda biyu sunyi kama (na iya hana mai karɓar kwayar cutar kwayar cutar ta nicotinic acid acetylcholinesterase receptor, ta hakan yana toshe hanyar gudanar da kwayar cutar ta tsakiya, yana haifar da nakasa da mutuwar kwari), thiamethoxam yana da Babban Fa'ida 5:
Thiamethoxam ya fi aiki
Babban abin da ake amfani da shi a cikin kwari shi ne clothianidin, wanda ke da kusanci ga masu karɓar maganin acetylcholine na kwari fiye da thiamethoxam, don haka yana da aikin kwari mafi girma;
Ayyuka na hydroxylated metabolites na imidacloprid ya ragu.
Thiamethoxam yana da babban solubility cikin ruwa
Solubility na thiamethoxam a cikin ruwa ya ninka na imidacloprid sau 8, don haka koda a yanayi mai bushe, hakan baya shafan sha da amfani da tamamethoxam ta alkama.
Nazarin ya nuna cewa a cikin ƙasa mai danshi na yau da kullun, thiamethoxam yana nuna irin wannan tasirin sarrafawa kamar imidacloprid; amma a yanayin fari, ya fi imidacloprid kyau sosai.
Resistancearamin juriya na thiamethoxam
Tunda imidacloprid ya kasance a kasuwa kusan shekaru 30, ci gaban juriya na kwari ya ƙara zama mai tsanani.
A cewar rahotanni, iska mai kalar ruwan kasa, aphid auduga, da cizon sauro na chive sun samar da wani tsayayyen juriya gareshi.
Hatsarin juriya tsakanin thiamethoxam da imidacloprid akan bishiyoyin ruwan kasa, auduga auduga da sauran kwari yayi kadan.
Thiamethoxam na iya haɓaka haɓakar amfanin gona da haɓaka haɓakar amfanin gona
Thiamethoxam yana da fa'idar da sauran magungunan kwari ba zasu iya daidaitawa ba, ma'ana, yana da tasirin inganta tushensu da seedlingsarfafan seedlingsan itace.
Nazarin ya nuna cewa Thiamethoxam na iya kunna sunadaran juriya danniya, kuma a lokaci guda a samar da auxin, cytokinin, gibberellin, abscisic acid, peroxidase, polyphenol oxidase, da phenylalanine ammonia lyase a cikin tsirrai. Sakamakon haka, thiamethoxam shi kuma yana sanya tushen shuka da tushe da ƙarfi kuma suna haɓaka juriya na damuwa.
Thiamethoxam ya dade
Thiamethoxam yana da karfi da ikon gudanar da ganye da tushen kayan tsari, kuma wakili na iya zama cikin hanzari da cikakken nutsuwa.
Lokacin da aka shafa shi zuwa ƙasa ko seedsa ,an ƙasa, thiamethoxam yana saurin shanyewa daga tushen ko sabbin tsiro, kuma ana hawa zuwa sama zuwa duk sassan jikin tsirrai ta hanyar xylem a jikin tsiron. Yana zama a jikin tsirrai na dogon lokaci kuma yana raguwa a hankali. Kayan lalacewa na clothianidin suna da aikin kwari mai yawa, don haka thiamethoxam yana da tasiri mai tsawo fiye da imidacloprid.
Post lokaci: Jan-11-2021