Iris Blattfleck
Iris Blattfleck
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Diese Pilzkrankheit kann ein ernstes Problem auf Iris in den nassen Jahreszeiten sein.
Die Krankheit überwintert in infiziertem Blattgewebe. Böden mit niedrigem pH-Wert können die Entwicklung von Krankheiten begünstigen.
Das Hauptsymptom sind braune Flecken, die von gelbem Gewebe umgeben sind. Die Flecken vergrößern sich, werden oval und haben einen rotbraunen Rand. Moderate Infektionen können auf die obere Hälfte des Blattes beschränkt sein. Bei schweren Infektionen können die Blätter zerstört werden. Wiederholte Infektionen können die Pflanzen schwächen und töten.
Entfernen Sie die infizierten Blätter. Chlorothalonil kann verwendet werden, um die Krankheit zu kontrollieren.
Visuals mit diesem Text verbunden.
| Visual Titel - Visuelle Größe | Visual Titel - Visuelle Größe |
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| Bakterieller Blattfleck auf Iris - 31K |
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FAQ - 💬
❓ Is iris a shade or sun plant?
👉 Iris need at least a half day of sun. In extremely hot climates some shade is beneficial, but in most climates Iris do best in full sun. Be sure to provide your Iris with good drainage, planting either on a slope or in raised beds.
❓ How do you get rid of iris fungus?
👉 Remove and destroy infected bulbs. Apply a fungicide to protect plants. Remove and destroy infected leaves and leaf debris. Apply a fungicide to protect plants.
❓ How do you treat bacterial soft rot in iris?
👉 If only a small portion of the rhizome is infected, you may possibly save it by cutting off the diseased portion. Avoid wounding the rhizomes when digging them up. After dividing rhizomes, let the wounds heal for a few days before replanting. Plant irises in a sunny, well-drained location.
❓ What month do you divide iris?
👉 Late July through mid August is the best time to plant, move or divide iris. Iris is one of the most popular perennials in the garden and easy to grow. Although they provide pleasure for many years with little care, periodic dividing is an important cultural practice for maintaining plant health.
❓ Where should I plant walking iris sun or shade?
👉 Walking iris can be grown in full or partial shade. It can tolerate a range of soil types but does best in moist locations. Walking iris has a moderate growth rate and does well in mass plantings, too.
❓ Do you cut back iris for winter?
👉 Since the eggs overwinter on the foliage, it's critical that you cut back irises in the fall. Trim off the leaves all the way back to the rhizomes, and toss them in the trash or bury them. If you come across a soft, rotten rhizome, dig it out and throw it away.
❓ What does iris borer damage look like?
👉 Damage caused by iris borers Iris borer feeding causes streaks that appear tan or water-soaked and can allow the entry of a bacterial soft rot. Rhizomes infected by soft rot are slimy, soft and foul-smelling.
❓ How often walk irises bloom?
👉 Walking iris (Neomarica gracillis) is a sturdy, warm-climate plant that enhances the garden with fans of pale green, lance-shaped foliage and small, fragrant flowers that bloom prolifically through spring, summer and autumn.
❓ What does iris rot look like?
👉 With iris root rot, you'll first see yellowing at the center of the fan of leaves. In time, the center turns brown and collapses. Root rot in iris always produces a mushy, bad smelling rhizome. Often, you'll also see decay in the plant's leaves.
❓ Can I mow off my iris?
👉 Can I cut the flower stalk back? A: After your irises have bloomed, you can indeed cut down the flower stalk; this process is known as "deadheading". You can use a clean knife or pair of utility scissors for this process, if they are too thick to snap off by hand.
❓ When should irises be cut back?
👉 In mid summer, when the plants begin to look ratty, cut all the foliage down by half to create “fans” of leaves. Always cut at an angle. At the end of the growing season, after the leaves have been killed by a few fall frosts, completely remove all foliage. Most of iris diseases overwinter on the leaf debris.
Autor Des Artikels: Alexander Schulz. Unabhängiger Konstrukteur und technischer Experte. Arbeitserfahrung in der Baubranche seit 1980. Fachkompetenz in den Richtungen: Bau, Architektur, Design, Hausbau.
