Kunyangwe chirimwa cheparasitic nematodes chiri chenematode njodzi, haisi tupukanana, asi zvirwere zvezvirimwa.

Chirwere chePlat nematode chinoreva rudzi rwenematode inogona kupararisa matishu akasiyana ezvirimwa, kukonzera kumira kwechirimwa, uye kutapurira mamwe utachiona hwechirimwa ichitapurira mugadziri, zvichikonzera zviratidzo zvechirwere chezvirimwa.Plant parasitic nematodes dzawanikwa kusvika parizvino dzinosanganisira root-knot nematodes, pine wood nematodes, soybean cyst nematodes uye stem nematodes, forerunner nematodes etc.

Tora midzi-knot nematode semuenzaniso:

Root-knot nematodes ikirasi yakakosha kwazvo yezvinomera pathogenic nematodes izvo zvakapararira pasi rose.Munzvimbo dzinopisa uye dzinopisa dzine mvura zhinji uye mamiriro ekunze ari pakati nepakati, kukuvadzwa kwemidzi-knot nematode kwakanyanya.

Sezvo hosha zhinji dzenematode dzichiitika pamidzi yezvirimwa, zvakaoma kushandisa mishonga yezvipembenene.Uye zviri nyore kuti zvizvarwa zvipindire mumagreenhouses, izvo zvinonyanya kuitika, saka midzi-knot nematodes kazhinji yakaoma kudzora.

Root-knot nematode ine mahombe akasiyana siyana, uye inogona kuparadzisa marudzi anopfuura 3000 emhando dzakaita semuriwo, zvirimwa zvekudya, zvirimwa zvekutengesa, miti yemichero, miti yekushongedza nesora.Mushure mekunge miriwo yatapukirwa nemidzi-knot nematode, iyo iri pamusoro-yepasi zvirimwa zvipfupi, matavi nemashizha akaonda kana kutsvuka, kukura kunomira, ruvara rweshizha rwunoreruka sekunge kushaikwa kwemvura, kukura kwezvirimwa zvinorwara zvakanyanya. isina simba, zvinomera zvinopera mukusanaya kwemvura, uye chirimwa chose chinofa mumamiriro ezvinhu akaoma.

Traditional nematicides inogona kupatsanurwa kuita fumigants uye non fumigants zvichienderana nenzira dzakasiyana dzekushandisa.

Fumigant

Inosanganisira halogenated hydrocarbons uye isothiocyanates, uye isiri fumigants inosanganisira organic phosphorus uye carbamate.Methyl bromide uye chloropicrin ndiwo halogenated hydrocarbons, iyo inogona kuvharidzira mapuroteni ekugadzirwa kwemidzi knot nematodes uye biochemical reaction mukufema;Carbosulfan neMianlong ndezvemethyl isothiocyanate fumigants, iyo inogona kutadzisa kufema kwemidzi mapfundo nematodes kusvika pakufa.

Non fumigation type

Pakati peasiri fumigant nematicides, thiazolphos, phoxim, phoxim uyechlorpyrifosndeye organic phosphorus, carbofuran, aldicarb uye carbofuran ndeye carbamate.Non fumigant nematicides inoparadza tsinga dzetsinga dzemidzi mapfundo nematodes nekusunga kuacetylcholinesterase mumasynapses emidzi knot nematodes.Kazhinji haauraye midzi mapfundo nematodes, asi anogona kungoita kuti midzi mapfundo nematodes irasikirwe nekwaniso yenzvimbo uye utachiona, saka ivo vanowanzonzi "nematode paralysis agents".

Parizvino, hapana akawanda matsva nematicides, pakati peiyo fluorenyl sulfone, spiroethyl ester, bifluorosulfone uye fluconazole ndivo vatungamiri.Abamectinuye thiazolophos zvakare inowanzoshandiswa.Pamusoro pezvo, maererano nemishonga yezvipembenene, Penicillium lilacinus neBacillus thuringiensis HAN055 yakanyoreswa muKonuo zvakare ine mukana wakasimba wemusika.