Leha li-nematode tsa parasitic tsa semela li le kotsi ea nematode, ha se likokoanyana tse senyang lijalo, empa ke mafu a limela.

Lefu la nematode la semela le bolela mofuta oa nematode e ka senyang mefuta e fapaneng ea limela, ea baka ho tsitsipana ha limela, 'me ea fetisetsa likokoana-hloko tse ling tsa limela ha e ntse e tšoaetsa mohlokomeli, e baka matšoao a lefu la limela.Li-parasitic nematodes tsa limela tse sibolotsoeng ho fihlela joale li kenyelletsa nematode ea root-knot, pine wood nematodes, soybean cyst nematodes le stem nematodes, forerunner nematodes joalo-joalo.

Ka mohlala, nka nematode ea metso-knot:

Li-nematode tsa Root-knot ke sehlopha sa bohlokoa haholo sa limela tsa pathogenic nematode tse ajoang lefatšeng ka bophara.Libakeng tsa tropike le tsa tropike tse nang le lipula tse ngata le boemo ba leholimo bo itekanetseng, kotsi ea metso-knot nematode e mpe haholo.

Kaha mafu a mangata a nematode a hlaha metsong ea limela, ho thata ho sebelisa chefo e bolaeang likokoanyana.'Me ho bonolo haholo hore meloko e kene ka har'a li-greenhouses tsa meroho, tse hlahang ka ho teba, kahoo li-nematode tsa metso-knot hangata li thata ho li laola.

Root-knot nematode e na le mefuta e mengata e mengata, 'me e ka bolaea mefuta e fetang 3000 ea liphoofolo tse kang meroho, lijalo tsa lijo, lijalo tsa chelete, lifate tsa litholoana, limela tsa mekhabiso le lehola.Kamora hore meroho e tšoaelitsoe ke nematode ea motso-knot, limela tse kaholimo li khuts'oane, makala le makhasi a nyenyefalitsoe kapa a mosehla, kholo ea putlama, 'mala oa makhasi o bobebe joalo ka ha eka ha ho na metsi, kholo ea limela tse kulang haholo e ea fokola. e fokola, limela lia pona ka lebaka la komello, 'me semela sohle se shoa maemong a matla.

Li-nematicides tsa setso li ka aroloa ka li-fumigants le tse sa fumigants ho latela mekhoa e fapaneng ea ts'ebeliso.

Fumigant

E kenyelletsa li-halogenated hydrocarbons le isothiocyanates, 'me li-non fumigants li kenyelletsa organic phosphorus le carbamate.Methyl bromide le chloropicrin ke li-halogenated hydrocarbons, tse ka thibelang motsoako oa protheine ea methapo ea methapo ea metso le karabelo ea biochemical ts'ebetsong ea phefumoloho;Carbosulfan le Mianlong ke tsa methyl isothiocyanate fumigants, e ka thibelang phefumoloho ya lefito la metso ho isa lefung.

Mofuta o sa fumigation

Har'a li-nematicide tse se nang mofu, thiazolphos, phoxim, phoxim lechlorpyrifoske tsa organic phosphorus, carbofuran, aldicarb le carbofuran ke tsa carbamate.Li-non fumigant nematicides li senya tšebetso ea methapo ea kutlo ea metso ea li-nematode ka ho tlama acetylcholinesterase ka har'a synapses ea lefito la metso.Hangata ha li bolaee li-nematode tsa motso, empa li ka etsa feela hore li-nematode tsa lefito la metso li lahleheloe ke bokhoni ba ho fumana moeti le ho tšoaetsa, kahoo hangata li bitsoa "nematode paralysis agents".

Hona joale, ha ho na li-nematicides tse ngata tse ncha, tseo har'a tsona fluorenyl sulfone, spiroethyl ester, bifluorosulfone le fluconazole e leng baetapele.Abamectinle thiazolophos le tsona li sebelisoa khafetsa.Ho feta moo, ho latela chefo e bolaeang likokoanyana, Penicillium lilacinus le Bacillus thuringiensis HAN055 tse ngolisitsoeng Konuo le tsona li na le menyetla e matla ea 'maraka.