Ukuhlonza Izinambuzane Zezitshalo Zezolimo
Ukuhlonza izinambuzane zezolimo kuyisinyathelo sokuqala esibalulekile ekugcineni umkhiqizo kanye nekhwalithi yezitshalo. Abalimi abaningi balahlekelwa hhayi nje ngenxa yokuhlasela kwezinambuzane okukhulu, kodwa futhi ngenxa yokubambezeleka kokuqaphela uhlobo lwezinambuzane nezimpawu zalo. Izinambuzane ngayinye inezici, imikhuba, nezindlela ezihlukile zokulimaza izitshalo. Ngakho-ke, ikhono lokuhlonza izinambuzane ngendlela efanele lizosiza ekunqumeni izindlela zokulawula ezisebenza kahle kakhulu, ezisebenza kahle, nezinobungani nemvelo. Lesi sihloko sixoxa ngencazelo yezinambuzane, izimbangela zazo, indlela yokuzibona ngokusekelwe ezimpawini, kanye nezibonelo eziningana zezinambuzane ezibalulekile ezitshalweni zezolimo.
Ukuqonda Izinambuzane Nomthelela Wazo Kwezolimo
Izinambuzane ziyizinto eziphilayo—ngokuvamile izinambuzane, izibungu, ama-nematode, noma ezinye izilwane ezincane—ezibangela umonakalo ezitshalweni, zinciphise isivuno kanye nekhwalithi. Izinambuzane zingahlasela izitshalo kusukela esigabeni sokukhula kwezithombo, ngokukhula kwezitshalo, ukuqhakaza, ngisho nangaphambi kokuvuna. Imiphumela yazo iyahlukahluka, kusukela emaqabunga anezimbobo, iziqu eziphukile, izitshalo ezikhubazekile, ukuwa kwezimbali, izithelo ezikhubazekile, ngisho nokwehluleka kwezitshalo.
Ukulahlekelwa yizinambuzane akubandakanyi nje kuphela ukulahleka komkhiqizo kodwa futhi nezindleko zokulungisa ezikhuphukile, ukusetshenziswa kwezibulala-zinambuzane ngokweqile, kanye nengozi yezinsalela zamakhemikhali ezitshalweni. Ngakho-ke, ukuhlonza kuyingxenye ebalulekile yomqondo we-Integrated Pest Management (IPM), indlela yokulawula ebeka phambili ukuvimbela kanye nesenzo ngokusekelwe ekubonweni kwensimu.
Izinto Ezibangela Ukuvela Kwezinambuzane
Ukuvela kwezinambuzane endaweni yezolimo akuyona into eyodwa, kodwa kuthonywa yizici eziningi. Esinye sezici eziyinhloko ukushintsha kwesimo sezulu, njengokushisa nomswakama, okukhuthaza ukuzala kwezinambuzane. Ngaphezu kwalokho, amaphethini okutshala angashintshi (ukulima okukodwa) angasheshisa ukuqhuma kwezinambuzane ngenxa yokutholakala kokudla okuningi nokuqhubekayo.
Ukusetshenziswa kabi kwezibulala-zinambuzane nakho kungadala izinkinga ezintsha. Ukufutha njalo ngesithako esifanayo esisebenzayo kungaholela ekumelaneni nezinambuzane, okwenza izinambuzane zimelane futhi kube nzima ukuzilawula. Ngakolunye uhlangothi, izibulala-zinambuzane zingabulala izitha zemvelo ezifana nama-parasitoid kanye nezilwane ezidla ezinye, okubangela ukwanda kwezinambuzane.
Izimo zomhlaba ezingaphathwanga kahle, njengokhula oluningi, izinsalela zezitshalo ezisele, noma ukuhlanzeka kwengadi okungekuhle, nakho kunikeza indawo yokukhosela kanye nezindawo zokuzalela izinambuzane. Ngakho-ke, ukuhlonza izinambuzane kufanele kuhambisane nokuqonda okuphelele ngesimiso sezolimo.
Izimiso Eziyisisekelo Zokuhlonza Izinambuzane
Ukuhlonza izinambuzane kungenziwa kusetshenziswa izindlela ezimbili eziyinhloko: ukubheka ngqo into ebangela lesi sifo kanye nokubona izimpawu zomonakalo ezitshalweni. Empeleni, abalimi bavame ukubona izimpawu ngokushesha bese belandela imbangela. Izimiso eziyisisekelo zokuhlonza zifaka:
1. Bheka ingxenye yesitshalo ehlaselwe: kungakhathaliseki ukuthi amaqabunga, isiqu, izimpande, izimbali noma isithelo.
2. Thola uhlobo lomonakalo: ukulunywa, ukubhobozwa, ukumuncwa koketshezi, izibhobozi, noma izibhubhisi zezimpande.
3. Bheka isikhathi sokuhlasela: ekuseni, ntambama, kusihlwa, noma isigaba esithile sokukhula kwesitshalo.
4. Bheka ukuthi kukhona yini izinambuzane: ebusweni bamaqabunga, ngaphansi kwamaqabunga, phansi kwesiqu, enhlabathini, noma ezicutshini zezitshalo.
5. Qopha iphethini yokusabalalisa: hlakazeka ngokulinganayo, ngamaqembu, noma ezindaweni ezithile kuphela.
Ukuqaphela kufanele kwenziwe njalo, isibonelo kabili ngesonto, ikakhulukazi lapho izitshalo zisencane noma lapho isimo sezulu sisekela ukukhula kwezinambuzane.
Ukuhlonza Ngokusekelwe Ezimpawini Zomonakalo
Izimpawu zokutheleleka kwezinambuzane zingaba yisibonakaliso sokuqala esisebenzayo. Nazi ezinye zezinhlobo eziyinhloko zezimpawu:
1. Amaqabunga anezimbobo futhi imiphetho yamaqabunga yonakele
Lezi zimpawu ngokuvamile zibangelwa izinambuzane ezidla amaqabunga njengezibungu nezintethe. Imigodi ingaba mincane noma ibe mikhulu kuye ngohlobo lwezinambuzane. Uma imigodi ingajwayelekile futhi kukhona amaconsi ezibungu azungeze isitshalo, izibungu (izibungu) cishe ziyimbangela.
2. Amaqabunga aphenduka aphuzi, agobe, noma ashwabane
Lezi zimpawu zivame ukuvela ngenxa yezinambuzane ezimunca amanzi njenge-aphid, i-mealybugs, noma i-thrips. Ukumunca amanzi kubangela ukuntuleka kwezakhamzimba esitshalweni, okubangela ukuthi amaqabunga aguge. Ngezinye izikhathi kubonakala uqweqwe olunamathelayo (i-honeydew), olukhuthaza ukukhula kwesikhunta esimnyama esinomswakama.
3. Isiqu noma isithelo esingenalutho
Imigodi eziqwini noma ezithelweni ivame ukubangelwa yizinambuzane ezidla izitshalo. Lezi zinambuzane zivame ukumba imigodi ezicutshini zezitshalo, okwenza kube nzima ukuzibona. Izimpawu zingase zihlanganise impova yezinambuzane ezidla izitshalo, imigodi yokungena, noma ukubuna okungazelelwe kwezingxenye zezitshalo.
4. Izitshalo ziyabuna noma zinamanzi anele
Uma isitshalo sibonakala sibunile yize umswakama wenhlabathi wanele, kungenzeka ukuthi kuwukuhlasela kwezimpande. Izinambuzane zomhlabathi ezifana nezikelemu noma ama-nematode zingalimaza izimpande, ziphazamise ukumuncwa kwamanzi. Ezinye izimpawu zifaka phakathi ukubola kwezimpande noma ukubonakala kwamaqhubu ezimpandeni (ikakhulukazi ama-nematode e-root knot).
5. Amabala kanye nomonakalo ezimbalini noma ezithelweni ezincane
Ama-thrip kanye nezimpukane zezithelo zivame ukubangela umonakalo ezingxenyeni ezikhiqizayo. Ama-thrip abangela amabala acwebezelayo kanye nokuwa kwezimbali, kuyilapho izimpukane zezithelo zibangela ukubola kwezithelo ngaphakathi futhi zivame ukutholakala zigcwele izimpethu.
Izibonelo Zezinambuzane Ezibalulekile Ezitshalweni Zezolimo
1. I-Armyworm (Spodoptera litura)
Ama-Armyworm ayizinambuzane ezihlasela izitshalo ezahlukahlukene njengesoya, upelepele, ummbila, nemifino. Izimpawu zawo zifaka phakathi izimbobo ezinzima emaqabungeni, okushiya imithambo kuphela. Ama-caterpillar ayasebenza ebusuku, acashe enhlabathini noma ngaphansi kwamaqabunga emini. Amaqanda avame ukutholakala emaqenjini futhi ambozwe izinwele ezincane.
2. Ama-Aphid (i-Aphis spp.)
Ama-aphid ahlasela ngokumunca uju oluvela emahlumela amancane nasemaqabungeni. Izimpawu zokutheleleka zihlanganisa amaqabunga agobile, ukukhula okulimele, kanye nokuvela kwe-honeydew, okuheha izintuthwane. Ama-aphid asebenza futhi njengezinto ezithwala amagciwane ezitshalo, ngakho-ke imiphumela yawo ingaba mibi kakhulu kunomonakalo ongokwenyama.
3. Ama-Thrips (ama-Thrips parvispinus nezinye izinhlobo)
Ama-thrip mancane futhi avame ukucasha ezimbalini noma emaqabungeni amaqabunga. Ukutheleleka kwawo kubangela amaqabunga anombala wesiliva, amabala, kanye nokuwa kwezimbali. Kupelepele, ukutheleleka kwama-thrip kunganciphisa ikhwalithi yezithelo ngokubangela izindawo ezimaqhubu nezinamaqhubu.
4. Izinambuzane eziboza isiqu (isibonelo elayisini nakummbila)
Elayisini, izimbobo zesiqu zingadala izimpawu ezifana ne-"sundep" (amahlumela afile ngesikhathi sesigaba sokukhula) kanye ne-"beluk" (ama-panicles amhlophe ngesikhathi sesigaba sokukhula). Emmbileni, izimbobo zihlasela iziqu kanye nezikhwebu, zivimbele ukugcwala kokusanhlamvu. Ukuhlonza kwenziwa ngokuthola izimbobo kanye nezibungu eziqwini noma ezisekelweni zamaqabunga.
5. Izimpukane zezithelo (i-Bactrocera spp.)
Izimpukane zezithelo ziyinkinga enkulu ezitshalweni zezithelo nemifino ezifana nomango, amagwava, utamatisi, kanye nopelepele. Izinsikazi zibekela amaqanda esithelweni, bese izibungu zidla inyama. Izimpawu zifaka phakathi amaphuzu amancane okubhoboza, ukuphuzi ngaphambi kwesikhathi, ukubola, kanye nokuwa kwesithelo ngaphambi kwesikhathi.
Amathuluzi Namasu Okusekela Ukuhlonza Ensimini
Ukuze kuthuthukiswe ukunemba kokuhlonza, abalimi bangasebenzisa amathuluzi alula njengengilazi yokukhulisa ukuze babone izinambuzane ezincane, izicupho eziphuzi ukuze ziqaphe izinambuzane ezindizayo, kanye nezicupho ze-pheromone zezinambuzane ezithile njengezinambuzane ezinwabuzelayo. Izincwadi zokuqondisa ezinemifanekiso noma izinhlelo zokusebenza zokuhlonza nazo zingasiza, ikakhulukazi uma zifaka izithombe zezimpawu zezinambuzane kanye nokubonakala kwazo esigabeni ngasinye sokuphila (iqanda, i-larva/nymph, i-pupa, i-adult).
Ngaphezu kwalokho, kubalulekile ukurekhoda okubonwe: usuku, ubudala besitshalo, uhlobo lwezimpawu, inani lezinambuzane ezitholakele, kanye nezimo zezulu. Lolu lwazi luwusizo ekubikezeleni amaphethini okuhlasela ngesizini elandelayo.
I-Penutup
Ukuhlonza izinambuzane zezolimo kuyikhono elibalulekile kwezolimo zanamuhla, eligxile ekusebenzeni kahle nasekuzinzeni. Ngokubona ngokunembile izinhlobo zezinambuzane nezimpawu zazo, abalimi banganquma izindlela ezifanele zokulawula, banciphise ukusetshenziswa ngokweqile kwezibulala-zinambuzane, futhi balondoloze uhlelo lwemvelo lomhlaba olulinganiselayo. Ukubheka njalo, ukuqonda izinhlobo zomonakalo, nokusebenzisa amathuluzi alula kuzosiza inqubo yokuhlonza ukuthi ibe nenembile kakhudlwana. Ekugcineni, ukuhlonza izinambuzane okuphumelelayo akuvikeli nje kuphela izitshalo kodwa futhi kusekela ukuvikeleka kokudla kanye nenhlalakahle yabalimi.
