Kodi powdery mildew ndi chiyani chomwe chikuwonekera pa petunias? Kodi mungatani kuti muthane ndi matendawa?

Petunia ndi lowala, lokongola komanso lalitali maluwa. Maluwa awa ndi angwiro osati zokongoletsa flowerbeds m'munda zowonongeka, komanso m'mabwalo am'tawuni. Ndi chisamaliro chaching'ono komanso chovala cha panthaŵi yake petunia amatha kukondwera ndi maluwa ake kuyambira pachiyambi cha chilimwe mpaka kumapeto kwa autumn. Koma ngakhale kuti maluwawa amadzichepetsa, nthawi zina amakhudzidwa ndi matenda. Imodzi mwa matenda owopsa kwambiri a petunias ndi powdery mildew.

Ndi chiyani?

Mildew ndi matenda a fungal omwe amakhudza zomera.. Matendawa amayamba ndi bowa la powdery-mildew, masamba a piritsi ndipo amatha kufa. Sizisankha zomwe zimakonda ndipo zingakhudze chiwerengero cha zomera, kuchokera ku zokongoletsa ku mbewu ndi masamba.

Chithunzi

Ndiye inu mukhoza kuwona chithunzi cha powdery mildew pa petunia:

Zimayambitsa

Kawirikawiri, matendawa amayamba chifukwa cha nyengo komanso kusamalidwa bwino kwa zomera. Bowa limakhala m'nthaka. Sichidziwonetsera mu nyengo yozizira ndi youma, ngati malamulo a chisamaliro cha mbeu akutsatiridwa mosamala. Koma ngati zinthu sizikuyenda bwino, zinyama zonse zimakula, zomwe zimangoyambitsa matenda.

Bowa - mavitamini amadyetsa kupuma kwa mbeu, ndikuzisiya popanda zakudya. Zimayambitsa matendawa nthawi zambiri:

• Nyengo yozizira komanso chinyezi. Ngati palinso kuchepa kwa dzuwa, zizindikiro za kukula kwa zomera zimakhala zosasangalatsa kwambiri.
• Mchere wa nayitrogeni wambiri.
• Choncho, kubzala mobwerezabwereza kwa zomera, kumayendera mpweya wokwanira pakati pawo.
• Mothi wothirira sichiwonetsedwa. Musamwe madzi zomera nthawi zambiri. Sichiyeneretsanso kusefukira chomera kwambiri pambuyo pa chilala chambiri. Zochita izi zimawononga chitetezo cha mbeu, ndipo, monga mukudziwa, matenda ambiri amakhudza kubzala kofooka.

Mukapezeka pa tsamba la zomera zomwe zimakhudzidwa ndi powdery mildew, nkofunika kukumbukira kuti njira imodzi yofalitsira matenda ndiyo kunyamula spores mumlengalenga.

Pamene mukusamalira zomera, zakhudzana ndi chomeracho ndikukhudza wathanzi - matendawa ndi powdery mildew amapezeka.

Kodi mungadziwe bwanji matendawa?

Powdery mildew pa masamba a petunia amawonekera pachimake choyera. Pa nthawi yoyamba ya matendawa, zimakhala zosavuta kuti munthu wina azipaka mafuta pang'onopang'ono ndi ufa kapena shuga wambiri. Koma mosiyana ndi zimenezi, matendawa akuthamangira maluwa ndi masamba.

Powdery mildew ikufulumira kwambiri, masamba omwe ali ndi kachilombo amayenda chikasu ndikugwa. Ngakhalenso chomera chikakhala ndi nthawi yokhala ndi masamba atsopano, amawoneka opsinjika komanso opweteka kwambiri. M'masiku awiri okha, matendawa amatha kuwononga zonse za petunias. Ngati mankhwalawa atachedwa, zomera zimamwalira.

Kodi mungamenyane bwanji?

Kodi mungathetse bwanji matendawa? Mwamsanga pachimake chopezeka pachimake pa masamba a petunia, m'pofunika kuti nthawi yomweyo ayambe mankhwala a zomera:

1. Choyamba ndi kuchotsa madera omwe akukhudzidwa ndikuwotcha kuti matendawa asapitirire.
2. Pansi pa chomera ndi kofunika kudula dothi la pamwamba ndikukhalanso ndi latsopano, lopangidwa ndi wothandizira.
3. Mbewu yokha imapulitsidwa ndi fungicide.

Mankhwala amakono amagwiritsidwanso ntchito kwambiri polimbana ndi powdery mildew. Musanayambe kugwiritsa ntchito njirayi, matendawo a mbewuyo amachotsedwanso pano.

Ngakhale kuti kupopera mbewu sikumalandiridwa pakadwala ndi powdery mildew, isanafike kufalikira kwa fungicidal kukonzekera, wamaluwa amalimbana bwino ndi matenda mothandizidwa ndi kupopera mbewu mankhwalawa:

1. Mkuwa wa sulfate. Pakani malita 5 a madzi, tengani 5 g wa sulphate wamkuwa, kuwonjezera 50 g sopo ndikusakaniza bwino. Njira yothetsera mbeu kamodzi pa sabata kwa mwezi.
2. Potaziyamu permanganate. Mu 10 malita a madzi, sungunulani pafupifupi 3 g wa manganese, tsatirani chomera 3-4 nthawi iliyonse masiku asanu ndi njirayi.
3. Soda Ash. Konzani yankho la soda: 5 malita a madzi otentha, tengani supuni 2 ya soda ndi supuni imodzi ya sopo yophika zovala. Petunia baka spray ofunda yankho 3 nthawi masiku 7.
4. Dairy whey. Sungunulani 1 lita imodzi ya seramu mu 10 malita a madzi ndikupopera zomera ndi njirayi.
5. Mpiru wa mpiru. Sungunulani supuni 2 za mpiru wa mpiru mu 10 malita a madzi owiritsa. Njira yothetsera ikhoza kuthiriridwa ndi kuthiridwa ndi petunias.

Amagwira ntchito kwambiri polimbana ndi powdery mildew ndipo amatha kuletsa kufalikira kwa matendawa pamtunda. Pangani petunias anu madzulo komanso nyengo yopanda mphepo.

Zimene mungachite: mankhwala

• Amadziwika kwambiri polimbana ndi powdery mildew fungicidal mankhwala "Topaz", mtengo wake wonse ndi ma ruble 75.
• Mankhwala ovomerezeka "Ndikuthamanga", mtengo wake wokwanira ndi ma ruble 25.
• Wotchuka ndi wamaluwa kuti azitsatira powdery mildew "Fundazole"Zopezeka mu mawonekedwe a ufa, mtengo ndi pafupifupi makina makumi anayi.
• "Vitaros"- Mtundu wina wotchuka wa fungicide wolimbana ndi powdery mildew. Mtengo wa makilomita 50 mpaka 60.

Njira zothandizira

Njira yabwino yolimbana ndi powdery mildew ndikuteteza matendawa. Inde, kuti mupewe mavuto, mukhoza kubzala mitundu ya petunias yomwe imatsutsidwa ndi matenda a fungal. Koma ngati simukutsatira malamulo oyambirira pa chisamaliro cha zomera, ndiye kuti zomera zomwe zimatetezedwa ndi majini sizidzakana matenda. Choncho, choyamba, yesetsani kupereka zomera bwino:

1. Madzi a petunias pokha atatsimikiza kuti dziko lapansi luma ndi louma mokwanira, koma osati louma. Gwiritsani ntchito madzi ofunda, osungunuka kuti mumwe madzi.
2. Kubzala kumafunika kuchepetsedwa nthawi zonse, kuchotsa, choyamba, kuphulika.
3. Pamene mukudyetsa petunias, pitirizani kukula ndipo musatengedwe ndi feteleza-based feteleza.
4. Perekani makina a potaziyamu-phosphorous, zomwe zimathandiza kuti pakhale chitetezo cha petunias.
5. Yang'anani tsiku ndi tsiku kuyendera kwa petunias.
6. Chitani nthawi ndi nthawi kupopera mbewu mankhwala a zomera ndi biofungicide. N'zotheka kugwiritsa ntchito "Fitosporin" kapena "Pseudobacterin".

Mwa kusunga malamulo ophweka awa, mukhoza kupereka zomera kwa moyo wautali, ndipo dzipatseni chimwemwe cha zotsatira zabwino za ntchito yanu.

Ndi bwino kuteteza matendawa kusiyana ndi kulimbana nawo. Musaiwale za kupewa matenda, ndipo simukuyenera kugwiritsa ntchito fungicidal kukonzekera pa ziwembu zanu. Kugwirizana ndi luso lamakono la ulimi lidzakuthandizani, ngati silingathetsetu matenda, ndiye kuchepetsa mwayi wawo mwa 90% ndendende.

Zomwe anakumana nazo wamaluwa amadziwa zimenezo Matenda ambiri amayamba pa zomera chifukwa chosamalidwa bwino. Yang'anirani zolima zanu, mutenge nthawi yambiri yofufuza zamasamba tsiku ndi tsiku, ndipo adzakuthokozani chifukwa cha maluwa awo obiriwira, kukhala chokongola chenicheni cha flowerbeds ndi makonde.