Me yasa amfani da raga mai hana kwari?

Babban maƙasudin raga na rigakafin kwari shine kiyaye kwari irin su kabeji farin malam buɗe ido kuma ƙuma irin ƙwaro kashe amfanin gona. Ƙirƙirar shingen jiki na iya zama mai tasiri da kuma canza amfani da magungunan kashe qwari. 

Rukunin ya yi kama da labulen net amma an yi shi da polythene bayyananne. Girman raga sun fi buɗewa sosai fiye da kayan lambu ulu ma'ana yana ba da ƙarin zafi kaɗan. Duk da haka, yana ba da kyakkyawan iska, ruwan sama da ƙanƙara kariya.

Amfani

Kariya daga kwari 

Ana amfani dashi azaman shinge na jiki, kwaro proof meshes ba da kariya daga tsiron da ke cin kwari sau da yawa ba tare da haɓakar zafin jiki mai yawa ba (ya danganta da girman raga) amma tare da kyakkyawan kariya daga iska da ƙanƙara. Suna kuma hana ruwan sama mai yawa yana rage barnar da manyan ɗigon ruwan sama kan yi wa tsarin ƙasa, gadaje iri da tsiro. Hakanan ana rage zubar da ƙasa wanda zai iya gurɓata amfanin gona mai ganye.

Many problems including root feeding insects such as karas tashi kuma tushen kabeji tashi 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.

Bai kamata tsire-tsire su kasance masu matsewa yayin da suke girma a ƙarƙashin suturar raga kuma yakamata a haɗa su da kasala yayin rufewa don ba da damar girma shuka.

Ko da yake 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.

Juyawa amfanin gona 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.

Rashin amfani

Iyakance kama zafi

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

Ƙarfafa cututtuka da slugs

Raised humidity levels and subsequent soft, lush growth produced when growing under insect proof mesh may encourage diseases such as Botrytis kuma downy mildew. Slugs kuma dodunan kodi ana iya ƙarfafa shi ta wurin mafi girman zafi a ƙarƙashin raga.

Ƙuntata hanyar ciyawa

Abin baƙin ciki shine yawanci ya zama dole a buɗe shuke-shuke kowane mako biyu zuwa uku don farattura, sako da kuma siraran iri da aka shuka. Wannan yana haifar da kamuwa da kwari waɗanda da zarar cikin raga zasu iya ninka.

Kwai kwanciya ta cikin raga

Wani lokaci kwari na iya yin ƙwai ta cikin raga idan raga ya taɓa ganyen amfanin gona. Tabbatar da raga ba ya taɓa tsire-tsire yana rage yiwuwar faruwar hakan. 

Matsalolin pollination

Kayan amfanin gona masu gurbatar kwari kamar strawberries kuma jaruntaka ba su dace da girma a ƙarƙashin raga mai hana kwari ba yayin lokacin furanni.

Netting da namun daji

Dabbobin daji na iya zama cikin haɗari daga ƙaƙƙarfan kafa da sarrafa gidan yanar gizo. Rana mai kyau sosai, kamar raga mai hana kwari ko Furen kayan lambu, yana ɗaya daga cikin mafi aminci zažužžukan, amma yana da muhimmanci don tabbatar da gefuna na raga ta hanyar binne a ƙarƙashin ƙasa ko kuma angaya zuwa allon matakin ƙasa rabin nutse a cikin ƙasa. Tsuntsaye na musamman na iya shiga cikin ragamar ragargaza wanda zai iya haifar da mutuwa ko rauni. 

Dorewa

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, yana ba da zaɓi mai dacewa ga masu lambu. 

Zaɓin samfur

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.

Hakanan ana siyar da raga da nau'ikan girman raga. Karamin ragar ƙaramar kwarin ba a haɗa shi ba amma mafi girman farashi da kuma yuwuwar haɓakar zafin jiki (mafi kyawun kayan gwajin kwarin na iya haifar da ɗumamar amfanin gona da aka rufe) da zafi a ƙasa. A gefe guda, mafi kyawun raga suna zama masu sauƙi da sauƙi don amfani ba tare da goyan bayan hoops ba.

Daidaitaccen raga: 1.3-1.4mm. Mai kyau ga kwari irin su tushen kabeji tashi, albasa tashi, irin wake tashi kuma 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 aphids, ƙwaro ƙwaro, allium leaf ma'adinai kuma lek asu.

Rana mai kyau: 0.8mm. Good for very small insects such as flea beetles, cabbage whitefly, moth and butterflies, leaf miners (including allium leaf miner), greenfly, blackfly, da kuma tushen kabeji gardawa, albasa gardawa, irin wake gardama da karas gardama. Tsuntsaye da dabbobi masu shayarwa ma ba a cire su.

ultrafine raga: 0.3-0.6mm. Wannan girman yana ba da kariya mai kyau thrips, ƙuma beetles da sauran ƙananan invertebrates. Tsuntsaye da kwari masu shayarwa ma ba a cire su.

Butterfly netting: Kyakkyawan raga tare da raga na 4-7mm suna ba da kariya mai kyau daga farin malam buɗe ido matukar dai ganyen bai taba gidan yanar gizo ba, kuma ba shakka tsuntsaye da dabbobi masu shayarwa.