Izifo Kakotini Eziyinhloko Nezinambuzane Nokuvinjelwa Nokulawulwa Kwazo (2)

I-Cotton Aphid

Izimpawu zokulimala:

Izintwala zikakotini zibhoboza ngemuva kwamaqabunga kakotini noma amakhanda athambile ngomlomo ohlabayo ukuze amunce ijusi. Ethintekile ngesikhathi sezithombo, amahlamvu kakotini ayagoqeka futhi isikhathi sokuqhakaza nesembongolo siyabambezeleka, okuholela ekuvuthweni sekwephuzile nokuncipha kwesivuno; Ethinteka phakathi nesigaba somuntu omdala, amaqabunga angenhla ayagoqa, amaqabunga aphakathi abonakala enamafutha, futhi amaqabunga aphansi ayabuna futhi awe; Ama-buds awonakele nama-bolls angawa kalula, athinte ukuthuthukiswa kwezitshalo zikakotini; Ezinye zidala amaqabunga awile futhi zinciphisa ukukhiqizwa.

Ukuvimbela nokulawula amakhemikhali:

I-10% imidacloprid 20-30g mumu ngayinye, noma 30% imidacloprid 10-15g, noma 70% imidacloprid 4-6 g ngemu, isifutho esilinganayo, umphumela wokulawula ufinyelela ku-90%, futhi ubude besikhathi bungaphezu kwezinsuku ezingu-15.

I-Spider Mite Enamabala Amabili

Izimpawu zokulimala:

ama-spider mite enamabala amabili, abuye aziwe ngokuthi ama-fire dragons noma ama-fire spider, adlangile eminyakeni yesomiso futhi adla kakhulu ijusi engemuva kwamaqabunga kakotini; Ingenzeka kusukela esigabeni sezithombo kuye esigabeni esivuthiwe, ngamaqembu ezibungu kanye nezibungu ezindala ziqoqana ngemuva kwamaqabunga ukuze zimunce ijusi. Amaqabunga kakotini awonakele aqala ukukhombisa amachashaza aphuzi namhlophe, futhi lapho umonakalo uba mkhulu, kuvela amabala abomvu emaqabunga kuze kube yilapho lonke iqabunga liphenduka libe nsundu futhi libune futhi liwe.

Ukuvimbela nokulawula amakhemikhali:

Ezinkathini ezishisayo nezomile, 15% pyridaben 1000 kuya 1500 izikhathi, 20% pyridaben 1500 kuya 2000 izikhathi, 10.2% avid pyridaben 1500 kuya ku-2000 izikhathi, futhi 1.8% ngokushelela 2000 izikhathi 2000 kufanele isetshenziswe ngisho izikhathi 30 kuya ku-30. ikhokhwe kwisifutho esifanayo endaweni yamaqabunga nangemuva ukuze kuqinisekiswe ukusebenza kahle nokulawula umphumela.

Isikelemu

Izimpawu zokulimala:

Kungokwe-oda i-Lepidoptera nomndeni wakwaNoctidae. Yisilokazane esikhulu ngesikhathi sehlumela likakotini kanye nesiteji se-boll. Izibungu zilimaza amathiphu amathenda, imiqumbe, izimbali, namabhola aluhlaza kakotini, futhi zingaluma isiqongo seziqu zethenda ezimfushane, zenze ukotini ongenakhanda. Ngemva kokulimala kwehlumela, ama-bracts aphenduka aphuzi futhi avuleke, bese ewa ngemva kwezinsuku ezimbili noma ezintathu. Izibungu zithanda ukudla impova kanye nokucwaswa. Ngemva kokulimala, ama-green bolls angakha amachashaza abolile noma aqinile, athinte kakhulu isivuno sikakotini kanye nekhwalithi.

Ukuvimbela nokulawula amakhemikhali:

Ukotini ongazweli ezinambuzaneni unomphumela omuhle wokulawula ku-cotton bollworm yesizukulwane sesibili, futhi ngokuvamile awudingi ukulawulwa. Umphumela wokulawula ku-cotton bollworm yesizukulwane sesithathu nesesine uba buthaka, futhi ukulawula okufika ngesikhathi kuyadingeka.Umuthi ungaba ngu-35% we-propafenone • phoxim 1000-1500 izikhathi, 52.25% chlorpyrifos • chlorpyrifos 1000-1500 izikhathi, kanye no-20% chlorrifos 10pylopy • 50 chlorrifos 10py chlorrifos • 10py chlorrifos 10py izikhathi.

I-Spodoptera litura

Izimpawu zokulimala:

Izibungu ezisanda kuchanyuselwa ziyabuthana futhi zidla i-mesophyll, zishiya ngemuva kwe-epidermis noma imithambo, zenze isisefo njengenethiwekhi yezimbali namaqabunga. Bese behlakaza futhi balimaze amaqabunga kanye nama-buds kanye nama-bolls, ngokudla ngokungathí sina amaqabunga futhi kulimaze ama-buds nama-bolls, okubangela ukubola noma ukuwa.Lapho kulimaza amabholi kakotini, kunemigodi engu-1-3 ngaphansi kwebholi, enobukhulu obungajwayelekile futhi obukhulu be-pore, kanye nendle yezinambuzane ezinkulu ezihlanganiswe ngaphandle kwemigodi. 

Ukuvimbela nokulawula amakhemikhali:

Umuthi kufanele unikezwe ngesikhathi sokuqala kwezibungu futhi ucishwe ngaphambi kwesikhathi sokudla ngokweqile. Njengoba izibungu zingaphumi emini, ukufafaza kufanele kwenziwe kusihlwa.Umuthi kufanele ube 35% probromine • phoxim 1000-1500 izikhathi, 52.25% chlorpyrifos • cyanogen chloride 1000-1500 izikhathi, 20% chlori00 chlorifoll • 10 chlorifoll izikhathi 1 ifuthwe ngokulinganayo.