Nā te mea kua tino kitea haere ngā pepeke o raro whenua i ngā tau tata nei, ko te whakamahinga tonu o te kakau witi e hoki mai ana ki ngā mara me ngā hotoke mahana kua whakarato i ngā āhuatanga pai mō ngā pepeke o raro whenua. Mena kāore i te tika te patu pepeke i whiriwhiria mō te whakakakahu purapura witi, ka ara ake pea he raruraru pēnei i te ngaro o ngā tipu me te whati (te kore haere tonu o ngā rarangi) i roto i te witi. I tēnei wā, ko ngā mea whakakakahu purapura noa kei te mākete he patu pepeke kei roto i te nikotīni me ngā pānga mimiti pai ki roto. Ko ngā māngai noa ko ngā patu pepeke matua e toru kei roto i ngā mea whakakakahu purapura – imidacloprid, thiamethoxam, me te thiamethionam.
1. Imidacloprid
Ko te Imidacloprid te patu pepeke tuatahi i whakamahia ki te whakaranu purapura witi. Koinei te whakatupuranga tuatahi o te ranunga purapura witi. I tino angitu i roto i te whakatipu witi i taua tau, me te tino whai hua ki te whakahaere i ngā aphids witi. I muri i te whakaranu ki te imidacloprid, he tino iti noa ngā aphids i te wāhanga whakamutunga. Heoi, ko te raruraru o nāianei ki te imidacloprid ko te whakamahinga nui mō te wā roa, ka puta he ātete ki ngā pepeke. He pai anake mō ngā wāhi he iti noa te puta mai o ngā aphids, ngā wāhi rānei he ātete whānui ki ngā aphids, ngā wāhi rānei kāore i te whakamahi pinepine i ngā ranunga purapura. He iti te utu. Hei tāpiri, he toharite te whai huatanga o te imidacloprid ki ngā torongū me ētahi atu pepeke o raro whenua. Kāore i te tūtohutia kia whiriwhiria ngā ranunga purapura kei roto te imidacloprid mō ngā wāhi kua kino ngā pepeke o raro whenua.
2. Tiametoksam
I tēnei wā, koinei te patu pepeke matua e whakamahia ana mō te whakakakahu purapura o te witi hei ārai i ngā pepeke. Ko tētahi o ngā momo tino rongonui ko te hanganga wāhanga-toru o te benomyl·cyprodinil·thiamethoxam.
Ko te Thiamethoxam te patu pepeke tino whai hua i roto i ngā patu pepeke he nikotīni. Ka piri ki te mata o ngā purapura, ā, ka taea te mimiti e te pūnaha pakiaka i muri mai. Mēnā ka kai tonu ngā pepeke i ngā hua, ka paihana, ka mate. He roa te pānga toenga, ā, he tino whai hua ki te ārai i ngā pepeke pēnei i te aphids me te moko. Ki te whakatauritea ki te imidacloprid, he mārama ngā painga o te pānga patu pepeke pūnaha me te whai huatanga ki ngā pepeke o raro whenua. I tēnei wā, he ātete ki ngā pepeke he taurite. Hei tāpiri, ehara i te mea he pai noa ngā pānga whakahaere pepeke a te thiamethoxam engari he whakatairanga hoki i te tipu pakiaka o ngā hua, he mea tino ohanga me te whai hua hei patu pepeke whakakī purapura.
3. Clothiandin
I ngā tau e rua kua pahure ake nei, he maha ngā kaihanga kua whakatairanga i tēnei hua hei whakamahi i roto i te whakakī purapura witi. He tino pai tōna pānga, ā, he kaha tōna ki te whakakapi i te thiamethoxam hei hua matua i roto i ngā kaihoko whakakī purapura witi. He iti ake te pānga ā-tinana o te thiamethoxam i tērā o te thiamethionam, engari he roa ake te wā e mau ana ki te oneone.
Ngā Tuhipoka:
Tuatahi, mō te whakakakahu purapura, me whiriwhiri ēnei patu ngarara e toru kei roto te nikotīni. I te wā e whakamahia ana, me whakakotahi hoki e ngā kaimahi pāmu ēnei me ngā patu harore, pērā i te carbendazim, te benomyl, me ētahi atu. Me whakakotahi te maimoatanga mō ngā pepeke me ngā mate kia whai hua ai.
Tuarua, i te wā e whiriwhiri ana, ngana ki te whiriwhiri i te momo kaihoko paninga purapura whakatārewatanga mō te whakakī purapura. He mea hanga motuhake tēnei momo mō te whakakī purapura, ā, he nui ake te tere whakamahinga me te haumaru ake. Mena kāore e taea te hoko i tētahi kaihoko whakakī purapura motuhake, ka taea e koe te whiriwhiri tika i te momo kaihoko whakatārewatanga, i te momo kirikiri wai rānei (me te kore he momo hinu emulsable). Heoi, i te wā e whakamahia ana, me whakanui ake te horopeta kia tika ai te whai huatanga.
Wā tuku: Mei-27-2026
