Kutheni usebenzisa umnatha wokuthintela izinambuzane?

Injongo ephambili ye-mesh-proof mesh kukugcina izinambuzane ezifana ikhaphetshu ibhabhathane elimhlophe kwaye intakumba bhungane ngaphandle kwezityalo. Ukudala umqobo womzimba kunokusebenza kwaye kube yinguqulelo ekusebenziseni izibulali-zinambuzane. 

Umnatha ujongeka kancinane njengeekhethini zomnatha kodwa zenziwe ngepolythene ecacileyo. Iisayizi zeMesh zivuleke kakhulu kunoko uboya bezityalo oku kuthetha ukuba inika ubushushu obuncinane. Nangona kunjalo, inika ukhuseleko lomoya olungileyo, imvula kunye nesichotho.

Iingenelo

Ukukhuselwa kwizinambuzane 

Isetyenziswa njengesithintelo somzimba, imingxuma yobungqina bezinambuzane zikhusela kwizinambuzane ezitya izityalo rhoqo ngaphandle kokunyuka okuphawulekayo kobushushu (kuxhomekeke kubungakanani bomnatha) kodwa ngokhuseleko olululo emoyeni nakwisichotho. Zikwathintela imvula enkulu enciphisa umonakalo onokwenziwa ngamathontsi emvula kwisakhiwo somhlaba, iibhedi zembewu kunye nezithole. Ukuchaphaza komhlaba okunokonakalisa izityalo ezinamagqabi nako kuyancipha.

Many problems including root feeding insects such as umnqathe fly kwaye bhabha ingcambu yekhaphetshu are better managed by insect proof mesh than pesticides and the extra shelter leads to better plants and heavier crops.

Stretching mesh, even by placing over hoops, can widen the gaps and reduce efficacy. Check manufacturer’s instructions. The edges of the mesh are best buried under at least 5cms of soil.

Izityalo akufunekanga zixinaniswe njengoko zikhula phantsi kophahla lwemesh kwaye kufuneka kuqukwe ukucotha xa kugqunywa ukuvumela ukukhula kwezityalo.

Nangona horticultural fleece can exclude invertebrates very effectively, it is much less durable and can be easily damaged when removed for weed control. Fleece can also raise temperatures and humidity to levels that might be undesirable.

Ukujikeleziswa kwezityalo should be practised, as some invertebrates can get through the mesh and might persist until the following year, ready to multiply when the same crop is planted and the mesh replaced.

Iingxaki

Ukubanjwa okulinganiselweyo kokufudumala

Uboya begusha should be used where crops need to be provided with extra warmth or frost protection.

Ukukhuthaza izifo kunye ne-slugs

Raised humidity levels and subsequent soft, lush growth produced when growing under insect proof mesh may encourage diseases such as Botritis kwaye i-downy mildew. Slugs kwaye isineyile inokukhuthazwa kukufuma okuphezulu ngaphantsi komnatha.

Ukuthintela ukufikelela kukhula

Ngelishwa kuye kufuneke ukuba kutyhilwe izityalo rhoqo kwiiveki ezimbini ukuya kwezintathu ukuhlakula, ukhula kunye nezityalo ezicekethekileyo ezihlwayelweyo. Oku kubeka ingozi ekungeneni kwezinambuzane ezinokuthi xa zingaphakathi kumnatha ziphindaphindeke.

Iqanda libeka ngomnatha

Izinambuzane ngamanye amaxesha zinokubeka amaqanda ngomnatha ukuba umnatha uchukumisa amagqabi esityalo. Ukuqinisekisa ukuba umnatha awuchukumisi izityalo kunciphisa amathuba okuba kwenzeke oku. 

Iingxaki zomvumvuzelwano

Izityalo ezinomvumvuzelwano wezinambuzane njenge amaqunube kwaye iicourgettes azikufanelanga ukukhula phantsi komnatha wokuthintela izinambuzane ngexesha lokudumba kwazo.

Ukunetha kunye nezilwanyana zasendle

Izilwanyana zasendle zinokuba semngciphekweni ngenxa yokungamiswa kakuhle kwesefu yasegadini. Umnatha omhle kakhulu, onjenge-mesh-proof mesh okanye uboya behorticultural, yenye yeendlela ezikhuselekileyo, kodwa kubalulekile ukukhusela imiphetho yomnatha ngokugqumelela phantsi komhlaba okanye i-ankile kwibhodi ekumgangatho ophantsi etshone nesiqingatha emhlabeni. Iintaka ingakumbi zisenokubhajiswa kumanethi okhululekileyo nto leyo enokubangela ukufa okanye ukwenzakala kwazo. 

Uzinzo

Insect proof mesh may last five to ten years but unfortunately cannot be easily recycled. However, local recycling facilities should be checked. Insect netting made from biodegradable plant starch is now available from Andermatt, ukubonelela ngenketho eco-friendly kubalimi begadi. 

Ukhetho lwemveliso

Insect-proof mesh is offered in pre-cut sizes, a variety of widths and any length can be ordered ‘off the roll’. The larger the sheet and the closer it is to manufactured sizes the less it costs per square metre.

Umnatha nawo uyathengiswa ngokweesayizi ezahlukeneyo zemesh. Okukhona umnatha omncinci ungabandakanyiweyo kodwa kokukhona ixabiso liphezulu kunye nokwanda kobushushu obunokubakho (izinto ezinokumelana nezinambuzane ezinomnatha ocolekileyo zinokukhokelela kubushushu obubonakalayo bezityalo ezigqunyiweyo) kunye nokufuma ngaphantsi. Kwelinye icala, iimeshes ezicolekileyo zithande ukuba khaphukhaphu kwaye kulula ukuzisebenzisa ngaphandle kweehupu ezixhasayo.

Umnatha osemgangathweni: 1.3-1.4mm. Ilungele izinambuzane ezifana ingcambu yekhaphetshu iyabhabha, bhabha itswele, bhabha imbewu yembotyi kwaye carrot fly, as well as moth and butterfly pests.  Birds and mammals can also be excluded. Although theoretically capable of penetrating mesh, mammals and larger birds seldom do, so there is rarely any need to add further protection such as bird netting. However, this size is unreliable in excluding small insects such as iintwala, ibhungane, umgodi wamagqabi we-allium kwaye inundu leek.

Umnatha olungileyo: 0.8mm. Good for very small insects such as flea beetles, cabbage whitefly, moth and butterflies, leaf miners (including allium leaf miner), impukane eluhlaza, impukane emnyama, kunye nempukane yengcambu yekhaphetshu, impukane yetswele, impukane yembewu yembotyi kunye nebhabhathane lomnqathe. Iintaka nezilwanyana ezanyisayo nazo azibandakanywa.

Umnatha ocolekileyo: 0.3-0.6mm. Lo bungakanani bunika ukhuseleko olulungileyo ngokuchasene iithrips, ooqongqothwane kunye nezinye izilwanyana ezincinci ezingenamqolo. Iintaka kunye nezinambuzane ezincancisayo nazo azibandakanywa.

Inethi yebhabhathane: Iminatha ecolekileyo ene-4-7mm mesh inika ukhuseleko olululo amabhabhathane amhlophe okoko nje amahlamvu angawuchukumisi umnatha, kwaye kunjalo intaka nezilwanyana ezanyisayo.