Ama-nematode amahle angacindezela ama-nematode ezitshali zezitshalo. Kuyafaneleka ukuvuselela ama-nematode amahle esikhundleni sokunaka nje okubi. “Abalimi bangasho kalula izinhlobo eziyisishiyagalombili kweziyishumi ezimbi, kodwa ayikho kulezi ezingamashumi ayisishiyagalolunye ezinhle,” kusho uchwepheshe wezitshalo uPiet van der Haas womhlinzeki wezolimo uMertens eHorst.
Ngokuphathwa kahle kwenhlabathi, umlimi unikeza ama-nematode amabi amathuba amancane nezinhlobo ezinhle isikhala esiningi. Ngakho-ke, ngokusho kukaVan der Haas, kuyakhokha ukwenza okuningi ngalelo qiniso. Uchaza ngaleyo ndlela ukuthi azivamile ukuba nezinkinga ngama-nematode kulimo oluphilayo. Kulolo hlelo, ama-eel and fungi 'abamba futhi adle' ama-nematode anikezwa isikhala esithe xaxa. Abalimi abajwayelekile bangafeza okuningi ngokuphathwa kahle kwenhlabathi uma kukhulunywa ngama-nematode, kusho umeluleki.
UVan der Haas uthi ama-nematode amahle ashaywa kakhulu omanyolo abanolaka kakhulu njenge-pig slurry ne-fertrate (mineral concentrate). “Lapho esetshenziswa, ama-nematode amahle, anjengezinhlobo ze-Dorylaimida neMonochida aya kuziro ngokushesha okukhulu, ngokushesha okukhulu kunama-nematode 'amabi'.”
Ama-nematode amahle - ukujikeleza kwezitshalo
Ngo-2013 nango-2014, uVan der Haas kanye nabalimi uGebroeders Leidsen bathola ulwazi ngalesi sitshalo semithi yematode Pratylenchus penetrans (impande lesion nematode). Umndeni utjala amateki endaweni yeKronenberg.
Ukukhulula umhlaba wamazambane oshintshiwe kusuka emsukeni we-lesion nematode, balima amaTagetes ngemuva kwelike langaphambi kwesikhathi nangaphambi kwelike eliseduze. UVan der Haas uncome ukuthi inhlabathi ihlukaniswe kahle kuqala, ukuze abakwaMarigolds bakwazi ukugxila ngokujulile futhi nezimpande ze-exudates zenze umsebenzi wazo ujule. Lokhu kungenxa yokuthi uma kungenjalo i-nematode ingaphila ijule enhlabathini.
Ukuhlwanyelwa kwamaTagetes kwenzeka ngo-13 Agasti, kepha nokho kwaletha izinga lempande lesion le-zero.
Isampula le-nematode likhombisile ukuthi kwakusekhona izinga lama-3 Trichodorus nematode ngama-gram ayi-100. Abagxeki bathi 'uyabona, ama-marigolds andisa ama-trichodorides'. Ngenhlanhla ngangiphikelele kwisampula ephelele ye-nematode, ngakho-ke ngokulinganisa ama-nematode afanele. Ngokwenzayo, lokhu akuvamile ukwenzeka, ngoba abalimi bakuthola kubiza kakhulu. Lokhu kukunikeza isithombe esiphelele kakhulu futhi ungaziphatha ngokufanele. Izinga iDorylaimida libe ngama-80 neMonochida 120! ”
UVan der Haas wayelindele ukuthi ama-nematode amahle azokwazi ukususa ababi. Lokhu bekulokhu kunjalo nangesampula ngo-Mashi: izinga le-Trichodorides liye kuziro. Isimo esifanayo saphindwa ngo-2014 kwelinye icebo, kulokhu futhi ngokuhlwanyelwa kwamaTagetes ngomhlaka 11 Agasti. UVan der Haas uxoxe ngokuhlangenwe nakho kwakhe nomcwaningi we-WUR nematode uJohnny Visser. UVan der Haas: "Isekela isiphakamiso sokuthi ngemuva kwebhali lasebusika usengakwazi ukutshala ama-marigolds ukuze asebenze ku-Pp." Ukwesaba ukuphindaphindwa kwama-Trichodorus nematode akunasisekelo, ngokusho komxhumanisi.
- funda futhi: I-NVWA ishicilela umthetho olandelwayo wamazambane
UVan der Haas wavalelisa uMertens ngoDisemba. Ufuna ukuqhubeka ahlanganyele okuhlangenwe nakho kwakhe nomkhakha. "Umphumela amaTagetes anawo emhlabathini iminyaka emithathu kuya kwemine ngakho-ke sewaziwa isikhathi esithile." Umeluleki uthi isisekelo sokulima okunempilo singahlala sitholakala emhlabathini.