Powdery mildew ndi matenda a fungal omwe amachititsa powdery imvi kapena yoyera pamalaya pambali komanso zimayambira matenda. Matenda a powdery mildew amayamba ngati nkhumba zochepa pamasamba koma mwamsanga amatha kufalikira. Pamwamba pamwamba pake pamakhala chophimba chachikulu cha fungi spores. Nkhungu zimangowonongeka mosavuta m'minda yakuda, ndipo ndizovuta kwambiri kuthetseratu. Zingathe kuchititsa kuti chikasu chikhale chobiriwira komanso tsamba lakuda la masamba.
Mbewu Zowonongeka ndi Powdery Mildew
Monga alimi ambiri amadziŵa, powdery mildew zimakhala bwino mvula ndi kutentha kwake. Mitundu yosiyanasiyana ya bowa kuti Erysiples iwononge matendawa, ngakhale kuti zizindikirozo zimakhala zofanana nthawi zonse. M'madera alionse okhala ndi mvula yamchere, powdery mildew pafupifupi nthawi zonse amaoneka. Ngakhale izo zingakhudze zomera zonse, pali mitundu yambiri yomwe imayambitsa matenda aakulu:
- Maapulo
- Begonia
- California poppy
- Dahlia
- Delphinium
- Hollyhock
- Hydrangea
- Lilacs
- Monarda
- Oak
- Phlox
- Maluwa
- Froberries
- Zinnia
Kuwonongeka kwa Mbewu
Kawirikawiri, powdery mildew sichiwononge zomera ndipo zimangokhala zosasangalatsa. Zomera zina zimayambitsidwa ndi powdery mildew kuti zitha kupezeka; Muyenera kuyembekezera zotsatirazi ngati mutasankha kukula. Amaluwa ambiri amangovomereza kuti powdery mildew idzawoneka pafupifupi chaka chilichonse ndipo musavutike kukamenyana nawo.
Koma kupatula kusakondweretsa, powdery mildew, nthawi zambiri, amachititsa kuti chikasu chikhale chikasu ndi kugwa; kukula kwakukulu kwa mbewu; kupotoza kwa masamba, maluwa ndi zipatso; ndipo pamapeto pake zimafooketsa za zomera.
Matenda a Moyo wa Matenda
Spores of powdery mildew overwinter pa ziwalo za matenda odwala ndikuyamba zinyama zakutchire kupanga zatsopano pamene nyengo ikuwomba.
Nkhumba zatsopano zimatengedwera mphepo kupita kumalo ena a chomera kapena kumadera ena oyandikana nawo. Spores samaleka kubzala spores zambiri, choncho ngati masamba omwe ali ndi kachilomboka sali owonongeka, vuto silikhoza kuthetsedwa ndipo lidzaipiraipira.
Kuchiza ndi Kuteteza
Powdery mildew amatha kutentha pakati pa 60 F ndi 80 F makamaka makamaka m'nyengo yamvula (koma osati mvula) komanso m'madera othunzi omwe alibe mpweya wabwino. Mankhwala a fungicides nthawi zambiri sagwira ntchito polimbana ndi powdery mildew; Njira zabwino kwambiri zimakhala zogwirizana ndi chilengedwe, monga kuchotsa komanso kuwononga zomera ndi zomera.
Kulima minda yosagonjetsa matenda ndikuonetsetsa kuti mumalola mpweya wabwino ndi njira ziwiri zopezera powdery mildew. Njira zina zowonetsera kuti ufa wa powdery muwoneke ndi awa:
- Mitengo yobzala yomwe imawopsyeza kwambiri pamalo omwe angalandire dzuwa la m'mawa kwambiri. Izi zimathandiza kuti mame ndi mame aziwuma mofulumira ndi kuchepetsa mvula yomwe imayambitsa bowa.
- Kupititsa patsogolo kayendetsedwe ka mpweya posiyanitsa zomera bwino. Kupuma mpweya wabwino kumachepetsa matendawa. Mitengo yowopsya ikhoza kupangidwira kuti ipange mpweya wabwino.
- Kufufuza zomera nthawi zonse pa nyengo yotentha, youma, ndi kuchotsa masamba alionse omwe amasonyeza zizindikiro za matenda. Nthawi zonse perekani (musati manyowa!
- Kugwiritsa ntchito supuni ya supuni ya 1/4 yosakaniza soda yosakaniza ndi 1 peresenti ya madzi. Kupopera mbewu tsiku ndi tsiku pa zizindikiro zoyamba za matenda zingateteze zomera kuti zisamawonongeke.
- Kugwiritsa ntchito mafuta a Neem , mankhwala opangidwa ndi malonda. Zonsezi zimagwira ntchito powdery mildew ndipo zimateteza chomera kuti zisapitirirebe matenda.
Chochititsa chidwi n'chakuti, njira yothandiza popewera ndi kuchiza mpweya wa powdery ndi kupopera masamba a zomera zanu tsiku ndi tsiku ndi madzi ozizira kuchokera ku payipi. Powdery mildew amadana ndi madzi! Malo okhawo omwe ali ndi njirayi ndikutsimikiza kuti mumachita izo kumayambiriro kwa tsiku kuti masambawo adye bwino asanafike ozizira madzulo kutentha. Apo ayi, mungayambe matenda ena oyambitsa matenda, monga malo wakuda , mumunda wanu.