Chiyambi cha Sayansi ya Tizilombo Toyambitsa Zomera
Sayansi ya tizilombo towononga zomera ndi nthambi ya sayansi yomwe imaphunzira tizilombo towononga zomera (OPT) zomwe zimayambitsa kuwonongeka kwa zomera zomwe zalimidwa komanso zakuthengo, kuphatikizapo momwe mungazindikire, kumvetsetsa khalidwe lawo, ndikuzisamalira kuti muchepetse kutayika. Mu ulimi, tizilombo ndi chinthu cholepheretsa kupanga, kuchepetsa kuchuluka ndi mtundu wa zokolola. Chifukwa chake, kumvetsetsa koyambira kwa tizilombo towononga zomera ndikofunikira kwa alimi, ogwira ntchito zowonjezera, ophunzira a zaulimi, ndi aliyense amene akuchita nawo machitidwe opanga chakudya.
Tanthauzo ndi Chigawo
Kawirikawiri, "tizilombo toyambitsa matenda m'zomera" timatanthauza nyama kapena magulu a zamoyo zomwe zimaukira zomera, kusokoneza kukula, chitukuko, kapena kukolola. Mu ulimi, tizilombo nthawi zambiri timakhala ndi tizilombo, nthata, nsabwe, nkhono (monga nkhono ndi slugs), ndi zinyama zina zokhala ndi msana monga makoswe ndi mbalame. Sayansi ya tizilombo m'zomera (yomwe nthawi zambiri imagwirizanitsidwa ndi sayansi ya zaulimi ya tizilombo) simangoyang'ana kuzindikira tizilombo kokha komanso zachilengedwe, zamoyo, kuchuluka kwa anthu, kuyanjana kwa tizilombo ndi chilengedwe ndi zomera zomwe zimalandira, komanso njira zogwira mtima komanso zokhazikika zowongolera.
Sayansi ya tizilombo towononga zomera imaphatikizaponso kuzindikira zizindikiro za kuukira, kuwunika kuchuluka kwa kuwonongeka, kudziwa malire azachuma, ndi mfundo za kasamalidwe ka tizilombo tosakanikirana (IPM). IPM imalimbikitsa kasamalidwe ka tizilombo mwa kuphatikiza njira zosiyanasiyana zowongolera zachilengedwe komanso kuganizira za kulinganiza bwino zachilengedwe.
N’chifukwa Chiyani Tizilombo Ndi Vuto?
Mbewu zolimidwa nthawi zambiri zimalimidwa mochuluka, mofanana (monoculture). Izi zimathandiza kuti tizilombo tizikula bwino chifukwa cha kupezeka kwa chakudya chochuluka komanso malo okhala okhazikika. Kuphatikiza apo, kusintha kwa nyengo, kuyenda kwa zinthu pakati pa madera, komanso kugwiritsa ntchito mankhwala ophera tizilombo mopanda nzeru kungayambitse kuchuluka kwa tizilombo kapena kufalikira kwa tizilombo towononga m'madera atsopano.
Kutayika kwa tizilombo sikuti kumangobweretsa zokolola zochepa, komanso kumaphatikizapo kuwonongeka kwa zinthu (monga mabowo mu chipatso), kuchepa kwa ubwino (monga tirigu wopanda kanthu), kuwonjezeka kwa ndalama zopangira chifukwa cha zofunikira zowongolera, komanso kulephera kwa mbewu m'malo okhudzidwa kwambiri. Tizilombo tina timagwiranso ntchito ngati tizilombo toyambitsa matenda a zomera, monga nsabwe za m'masamba, zomwe zimatha kufalitsa mavairasi.
Kugawa ndi Zitsanzo za Magulu a Tizilombo
Kuzindikira magulu a tizilombo kumathandiza kudziwa njira yoyenera yowongolera. Mwachidule, magulu a tizilombo tomwe timamera amatha kufotokozedwa motere:
1. Tizilombo (Tizilombo)
Ili ndi gulu lalikulu la tizilombo tomwe timayambitsa matendawa. Zitsanzo zake ndi izi: tizilombo ta m'masamba mu mpunga, tizilombo ta armyworms mu chimanga, tizilombo toyamwa madzi m'nthaka, tizilombo ta zipatso mu mbewu za m'munda, ndi tizilombo ta thrips mu tsabola.
2. Nthata (Acarina)
Ndi ang'onoang'ono kwambiri ndipo nthawi zambiri amaukira masamba, zomwe zimapangitsa kuti pakhale madontho, chikasu, kapena kupindika. Mwachitsanzo, nthata zofiira zimakhudza zomera za masamba ndi zipatso.
3. Nsabwe za m'masamba
Nyongolotsi za microscopic zomwe zimakhala m'nthaka ndipo zimatha kuukira mizu, zomwe zimapangitsa kuti mizu itukuke, ikule movutikira, komanso ifote. Zitsanzo zake ndi monga root knot nematodes (Meloidogyne spp.).
4. Nkhono
Nkhono ndi nkhono nthawi zambiri zimaukira zomera zazing'ono, makamaka m'malo ozizira. Kuwonongeka kumaonekera m'masamba, omwe amawoneka ngati ali ndi mabowo kapena amadyedwa.
5. Mitsempha ya msana
Makoswe, mbalame, kapena nguluwe zakuthengo zimatha kuwononga mbewu mwachindunji. Mwachitsanzo, makoswe akumunda wa mpunga ndi vuto lalikulu pakulima mpunga.
Mtundu wa Pakamwa ndi Chitsanzo Chowonongeka
Mbali yofunika kwambiri ya sayansi ya tizilombo towononga zomera ndi kulumikiza mtundu wa pakamwa pa tizilombo ndi zizindikiro za kuwonongeka kwa zomera. Tizilombo tomwe timaluma kapena kutafuna pakamwa (monga mbozi) nthawi zambiri timasiya zizindikiro zoluma, monga mabowo kapena masamba odyedwa. Tizilombo tomwe timayamwa kapena toyamwa pakamwa (monga ziwala, nsabwe za m'masamba, ndi thrips) timayambitsa masamba achikasu, kukula movutikira, kapena kuwoneka ngati madontho. Kuwonongeka kwa tizilombo towononga nthawi zambiri kumaonekera chifukwa cha mabowo olowera mu tsinde kapena zipatso ndi minofu yamkati yowonongeka.
Kumvetsetsa njira zowononga izi kumathandiza kuzindikira msanga matendawa m'munda. Kuzindikira molondola kudzateteza kugwiritsa ntchito mankhwala ophera tizilombo molakwika ndikuchepetsa chiopsezo cha zotsatirapo zoyipa kwa adani achilengedwe.
Lingaliro la Chiwerengero cha Tizilombo ndi Chiwerengero cha Zachuma
Si tizirombo tonse tomwe timafunika kuthetsedwa. Mu zaulimi, kuchuluka kwa tizilombo nthawi zambiri kumasinthasintha ndipo kumatha kuponderezedwa mwachilengedwe ndi adani achilengedwe monga majeremusi, zilombo zolusa, ndi tizilombo toyambitsa matenda. Chifukwa chakuti kulamulira kuli ndi mtengo, sayansi ya tizilombo towononga zomera imazindikira lingaliro la malire azachuma, omwe ndi kuchuluka kwa anthu kapena mphamvu ya kuukira kwa tizilombo komwe, ngati kupitirira apo, kungayambitse kutayika kwachuma kwakukulu kuposa mtengo wolamulira.
Mwa kuyankhula kwina, njira zowongolera ziyenera kukhazikika pakuwunika zotsatira ndi kuganizira zachuma, osati kungoyang'ana mawonekedwe a tizilombo toononga. Mfundo imeneyi ndiyo maziko opangira zisankho mwanzeru komanso moyenera.
Kuyang'anira Tizilombo Tophatikizana (IPM)
IPM ndi njira yomwe imaphatikiza bwino njira zosiyanasiyana zowongolera ndipo imayang'ana kwambiri pakukhazikika. Njira izi zikuphatikizapo:
1. Kulamulira chikhalidwe chaukadaulo
Mwachitsanzo, kusinthana kwa mbewu, kubzala nthawi imodzi, ukhondo wa nthaka, mtunda pakati pa zomera, kugwiritsa ntchito mulch, ndi feteleza woyenera kungachepetse chakudya cha tizilombo ndikusokoneza moyo wawo.
2. Kulamulira kwa makina ndi thupi
Mwachitsanzo, kuyika misampha, kusonkhanitsa mazira kapena mphutsi pamanja, kugwiritsa ntchito maukonde oteteza, kapena kulima nthaka kuti musokoneze tizirombo m'nthaka.
3. Kulamulira kwa zamoyo
Podalira adani achilengedwe monga tizilombo toyambitsa matenda (monga Trichogramma), nyama zolusa (monga tizilombo tolusa), kapena tizilombo toyambitsa matenda (monga Bacillus thuringiensis ya mbozi), kulamulira kwachilengedwe n'kosamala zachilengedwe ndipo kumatha kusunga bata la chilengedwe.
4. Kulamulira mitundu yosagonja
Kugwiritsa ntchito mitundu yambiri ya zomera zomwe sizimadwala tizilombo kungathandize kuchepetsa kuwonongeka msanga. Izi zikuphatikizapo kuswana zomera zomwe zimalimbana ndi matenda kapena kupirira kuukira.
5. Kulamulira mankhwala
Mankhwala ophera tizilombo angagwiritsidwe ntchito ngati pakufunika kutero, makamaka pamene kuchuluka kwa tizilombo kupitirira malire a zachuma. Komabe, kugwiritsa ntchito kwawo kuyenera kukhala kosamala: kusankha chogwiritsira ntchito choyenera, mlingo woyenera, nthawi yoyenera yogwiritsira ntchito, ndikuganizira za chitetezo cha ogwiritsa ntchito komanso momwe angakhudzire chilengedwe ndi adani achilengedwe. Kugwiritsa ntchito kwambiri mankhwala ophera tizilombo kungayambitse kukana tizilombo, kubwereranso (kuchuluka kwa anthu), komanso kuipitsa chilengedwe.
Kuzindikira ndi Kuyang'anira: Chinsinsi cha Kasamalidwe
Gawo loyamba poyang'anira tizilombo ndi kuzindikira. Kuwonongeka kwa mbewu zambiri kumafanana, koma zomwe zimayambitsa zimasiyana. Kuzindikira molakwika kungayambitse njira zowongolera zosagwira ntchito. Kuzindikira kumatha kuchitika kudzera mu kuyang'ana mawonekedwe a zomera, zizindikiro za kuukira, kupezeka kwa tizirombo (mazira, mphutsi, ma pupae, ndi akuluakulu), komanso momwe chilengedwe chilili. Kuyang'anira m'munda nthawi zonse (kuyang'ana nthawi ndi nthawi) kumathandiza kuzindikira tizilombo msanga kuti njira zowongolera zigwiritsidwe ntchito moyenera, mwachangu, komanso mopanda mtengo.
Kutseka
Sayansi ya tizilombo towononga zomera imapereka maziko ofunikira omvetsetsa tizilombo towononga zomera, momwe timawonongera mbewu, ndi momwe tingaziyang'anire bwino komanso moyenera. Ndi njira yokhazikika pazachilengedwe monga Integrated Pest Management, ulimi ukhoza kuwonjezeka popanda kuwononga thanzi la chilengedwe komanso mgwirizano wa zachilengedwe. Pamapeto pake, kuyang'anira bwino tizilombo sikungokhala "kupha tizilombo," koma kumakhudza kusunga machitidwe aulimi okhazikika, opindulitsa, komanso otetezeka kwa anthu ndi chilengedwe.
Ngati mukufuna, nditha kuwonjezera magawo ena apadera (monga, "owononga kwambiri mpunga," "owononga zomera," kapena "chitsanzo cha pepala lowunikira munda") kuti nkhaniyi ikhale yogwirizana ndi zosowa zanu.
