Izifo Eziyinhloko Zikakotini Nezinambuzane Nokuvimbela Nokulawula Kwazo (2)

I-Aphid Kakotini

Izimpawu zokulimala:

Ama-aphid ekotini abhoboza ngemuva kwamaqabunga kakotini noma amakhanda athambile ngomlomo ocindezelayo ukuze amunce ujusi. Uma ethintekile ngesikhathi sesigaba sokukhula, amaqabunga kakotini ajikajika futhi isikhathi sokuqhakaza nokuqhakaza kwezimbali siyabambezeleka, okuholela ekuvuthweni sekwephuzile kanye nokuncipha kwesivuno; Uma ethintekile ngesikhathi sokukhula, amaqabunga aphezulu ayagoba, amaqabunga aphakathi abonakala enamafutha, kanti amaqabunga aphansi ayabuna futhi awe; Amahlumela namahlumela alimele angawa kalula, okuthinta ukuthuthukiswa kwezitshalo zikakotini; Amanye abangela amaqabunga awile futhi anciphise ukukhiqizwa.

Ukuvimbela nokulawula amakhemikhali:

I-10% ye-imidacloprid 20-30g nge-mu, noma i-30% ye-imidacloprid 10-15g, noma i-70% ye-imidacloprid 4-6 g nge-mu, ifafazwa ngokulinganayo, umphumela wokulawula ufinyelela ku-90%, futhi ubude bungaphezu kwezinsuku ezingu-15.

I-Spider Mite enamachashazi amabili

Izimpawu zokulimala:

Izimbuzane ezinezicabucabu ezimbili, ezaziwa nangokuthi ama-fire dragons noma izimbuzane zomlilo, zidla kakhulu eminyakeni yesomiso futhi zidla kakhulu ujusi ngemuva kwamaqabunga kakotini; Kungavela kusukela esigabeni sokukhula kwezithombo kuya esigabeni sokuvuthwa, lapho amaqembu ezimbuzane nezimbuzane ezindala zihlangana ngemuva kwamaqabunga ukuze zimunce ujusi. Amaqabunga kakotini alimele aqala ukukhombisa amabala aphuzi namhlophe, futhi lapho umonakalo uba mubi kakhulu, kuvela amabala abomvu emaqabunga kuze kube yilapho lonke iqabunga liphenduka onsundu futhi libune bese liwa.

Ukuvimbela nokulawula amakhemikhali:

Ezinkathini ezishisayo nezomile, i-15% ye-pyridaben izikhathi eziyi-1000 kuya ku-1500, i-20% ye-pyridaben izikhathi eziyi-1500 kuya ku-2000, i-10.2% ye-avid pyridaben izikhathi eziyi-1500 kuya ku-2000, kanye ne-1.8% ye-avid izikhathi eziyi-2000 kuya ku-3000 kufanele isetshenziswe ngesikhathi esifanele ukuze ifuthwe ngokulinganayo, futhi kufanele kuqashelwe ukufuthwa okufanayo ebusweni beqabunga kanye nangemuva ukuqinisekisa ukusebenza kahle kanye nomphumela wokulawula.

I-Bollworm

Izimpawu zokulimala:

Kungokweqembu le-Lepidoptera nomndeni wakwaNoctidae. Kuyinkathazo enkulu ngesikhathi sesigaba se-cotton bud kanye ne-boll. Izibungu zilimaza izihloko ezithambile, amahlumela, izimbali, kanye namahlumela aluhlaza okotini, futhi zingaluma ingxenye ephezulu yeziqu ezimfushane ezithambile, zakhe ukotini ongenamakhanda. Ngemva kokuba ihlumela elincane lonakele, ama-bracts aba phuzi futhi avuleke, bese ewa ngemva kwezinsuku ezimbili noma ezintathu. Izibungu zikhetha ukudla impova kanye ne-stigma. Ngemva kokulimala, amahlumela aluhlaza okotini angakha amabala abolile noma aqinile, okuthinta kakhulu isivuno kanye nekhwalithi yokotini.

Ukuvimbela nokulawula amakhemikhali:

Ukotini omelana nezinambuzane unomphumela omuhle wokulawula i-bollworm yesizukulwane sesibili sikakotini, futhi ngokuvamile awudingi ukulawulwa. Umphumela wokulawula i-bollworm yesizukulwane sesithathu nesesine sikakotini uyancishiswa, futhi ukulawulwa ngesikhathi kuyadingeka. Umuthi ungaba yi-35% propafenone • phoxim izikhathi eziyi-1000-1500, ama-chlorpyrifos angu-52.25% • chlorpyrifos izikhathi eziyi-1000-1500, kanye nama-chlorpyrifos angu-20% • chlorpyrifos izikhathi eziyi-1000-1500.

I-Spodoptera litura

Izimpawu zokulimala:

Izibungu ezisanda kuchanyuselwa zihlangana ndawonye bese zidla i-mesophyll, zishiya ngemuva i-epidermis noma imithambo engaphezulu, zakha inethiwekhi efana nesihlungo sezimbali namaqabunga. Zibe sezihlakazeka futhi zilimaze amaqabunga namahlumela namahlumela, zidle amaqabunga kakhulu futhi zilimaze amahlumela namahlumela, zibangele ukuthi zibole noma ziwe. Uma kulimaza amahlumela kakotini, kunemigodi engu-1-3 phansi kwe-boll, enezimbobo ezingajwayelekile nezinkulu, kanye nendle enkulu yezinambuzane enqwabelene ngaphandle kwemigodi. 

Ukuvimbela nokulawula amakhemikhali:

Umuthi kumele unikezwe ngesikhathi sokuqala kwezibungu futhi ucinywe ngaphambi kwesikhathi sokudla ngokweqile. Njengoba izibungu zingaphumi emini, ukufafaza kufanele kwenziwe kusihlwa. Umuthi kufanele ube yi-35% probromine • phoxim izikhathi eziyi-1000-1500, 52.25% chlorpyrifos • cyanogen chloride izikhathi eziyi-1000-1500, 20% chlorbell • chlorpyrifos izikhathi eziyi-1000-1500, futhi ufafazwe ngokulinganayo.