Zvimwe zvemavara akanaka ekuvhara mubindu redu ndeye asters . Kukura kwavo dzimwe nguva kunoda simba rakawanda uye kushivirira, nokuti aster inotambura nezvirwere uye inotyisidzirwa nezvipembenene zvakawanda, izvo zvinoreva kuti kurwisana navo kunofanira kunge kuri nguva dzose uye inoshanda.
Zvirwere zveperennial uye gore negore asters
Zvinoratidzwa kuti aster inotarisana nezvirwere zvinopfuura makumi maviri, kunze kwekurwiswa nezvipembenene, asi kunyatsosarudzwa mushonga uye kuparadzwa kwezvipembenene zvinogona kukanganisa kukanganisa kwavo. Zvimwe zvirwere zvinotanga kuchinja mbeu dzave dziri mumabhosi, dzimwe dzinomuka pane imwe mamiriro ezvinhu emamiriro ekunze, uye vamwewo vanovanda kusvikira nguva yekutumbuka. Ngatitarisei pane zvakajairika zvinowanzoitika munzvimbo yedu yemamiriro ekunze.
Mheto yemavara
Ichi ndicho chirwere chefungal, iyo inomera yakawanda uye astra inosangana nayo. Inobata zvose zvirimwa mbeu isati dzadyara pasi, uye vanhu vakuru vakura. Chiratidzo chechirwere chine tsvina yakasvibiswa ndeyekudzika kwegadziri mumudzi wenharaunda, iyo inogona kusvika kusvika pakakwirira 10-15 cm.Mbeu, sekutonga, inonyangarika zvakakurumidza, kusvika kune vanhu vakuru vanokura zvishoma nezvishoma zvishoma nezvishoma uye zvinowedzera zvakakwana.
Kuchengetedza mbeu yembeu, mbeu inobatwa neine simba yakakura yean manganese isati yadyarwa, kunyatsodzivisa ivhu. Kana kakatozomera michero inorwara, yakabviswa zvachose, ichipiswa, uye ivhu rinodururwa nesarudzo yakarongwa yekudzivirira kupararira kwefungus.
Mosaic (jaundice)
Ichi chirwere chetachiona hachigoni kungoita asters chete, asi mamwe maruva mbeu. Iyo inoratidzirwa nekupenya kwemashizha, ayo anova asingasviki akaonekwa - ane chiedza uye nzvimbo dzakaoma, uko zita racho rakabva. Chirwere ichi chinotanga nepakati penheyo, zvishoma nezvishoma kutora muti zvachose. Mabhesi anotamburawo uye ane mavara akangoita tsvuku panzvimbo pemumvuri wakajeka. Zvirwere zvinorwara zvinobviswa kubva mumudzi uye zvinoraswa, kana kupiswa, semakemikari anoshandiswa asina simba kurwisa chirwere ichi.
Powdery mildew
Bhokisi, rakafanana neupfu hwakasviba pamatemu uye mashizha e-aster inokonzerwa nefungus. Inogona kubviswa nechinangwa checolloidal sulfuri kana musanganiswa we soda uye yekushamba sesepa. Kana chirwere ichi chapararira, zviri nani kuparadza kusima nekupisa, zvisinei kuti wintering mycelium zvakare inoparadza asters pasi pemamiriro akanaka.
Fusarium
Kubva pakugadzirira, kupfuura zvinokwanisika kushandura asters kubva zvirwere zvakadai sefusarium wilt, kutarisirwa kunokodzera kudzidzazol, cobalt chloride, Topsin-M, magnesium sulphate. Iyi ndiyo chirwere chinonyanya kuonekwa muvasikana chinotanga nekukoma uye kushizha mashizha, mushure mokunge vaoma, uye maronda-mavara-machena anooneka pamatemu. Kana nguva isingatori matanho, mbeu yacho inofa.
Nzira yekusvitsa asters kubva kumapukanana?
Mukuwedzera kune zvirwere, asters uye zvipembenene zvakasiyana-siyana zvinopisidzirwa. Izvi ndezvi:
- foshoro;
- spider mite;
- bug;
- penny slobbering;
- earwig;
- chando astrova;
- slug.
Zvirwere izvi zvose zvinokuvadza zvinomera zvinowanzosvibirira - vanonwisa mauto anopa upenyu,
Kunyora pamwe neklorophos kuchaparadza kupikiswa kwechikwata, uye "Kudzizol" ichaparadza hutuko. Mukuwedzera, pamberi pezvipembenene panzvimbo iyi, zvakakosha kuchengetedza kushandiswa kwezvirimwa - usasima miti yemakore maviri akatevedzana munzvimbo imwe chete. Inofanirwa kurima ivhu rakawanda uye kubvisa masora. Kuchengeta mitemo yehutsanana muzviitiko zvizhinji kuchachengetedza bindu remaruva kubva mumatambudziko ane maitiro ezvirwere uye zvipembenene-zvirwere.