Spring treatment irises.
Iris (Iris), growing in our suburban garden, we harboring the winter lutrasilom (60g / m2) and polyethylene film. Need shelter bearded irises (especially Tb), Japanese, and Spurrier arilbredy. Alpine irises (such as onkotsikly (I. iberica)) overwinter under air-dry shelter. Without shelter, you can leave a bearded irises undersized (MDB, MTB), Siberian and hybrids I. versicolor.
In the period of active snowmelt main task grower - to provide rapid outflow of meltwater from planting irises and other perennials. Growers, who at this time are in no hurry to visit your site when it has snow, make a big mistake. If vodoottoka not, under the snow formed clusters of water covering the plants.
In such circumstances, even one week enough to start rotting rhizomes of bearded irises and other aerial parts of perennial flowers. Not tolerate standing water spring even moisture-loving plants: Lungwort, hostas, daylilies, trilliums, arizema etc. Typical view of irises after the winter: a little rhizome "retracted" in moist soil, visible rotten base of the leaves and mold.
In the cold winter frost is more likely to suffer kidney young irises, but with an increasing number of adult plants frostbitten rhizomes. If frostbite rhizomes of iris tissue to soften it (the final stage like thick cream), getting a milky white color.
Before removing the cover with irises in advance preparing the necessary preparations for the treatment of rhizomes, tools and supplies: mat below the knees, a teaspoon, a scalpel, a mixture of green fodder with antibiotics (kanamycin 50 ug / ml ampicillin 100 mg / ml; PPM 50 ug / ml) powder pounded charcoal.
After removing the cover with irises, rhizomes start processing.
This procedure consists of six steps:
1 Carefully shovel topsoil, clearing and inspecting lateral buds irises - they grow over the summer and will "harvest" this year.
2 All the leaves of irises with rotten (brown) remove the base completely. I cut the green leaves turned yellow and rotten leadership.
3 Spoons we clean the back of the iris rhizomes, probing the back of a spoon place mounting remote leaves: if the fabric is solid, the rhizome healthy. If a spoon fabric prominaetsya - means within the rot that must be removed to healthy tissue.
4 accumulates in the leaf axils irises water leads to decay of the base of the fan. If the plants rot went too far inside, we cut off with a scalpel along with rotten fan base. It is important to make a cut right: with a steep slope and a groove for drip-water cutoff. Iris bloom in spring this will not be, but it will save the rest of the rhizome and lateral buds from the plants further spread of rot.
5.Vyskablivaem spoon all detected in the rhizomes rot to healthy tissue. Thanks to early treatment, rot does not have time to spread and damage the lateral buds iris, which then develop into healthy plants.
All 6 sections and "risky" places iris rhizomes plastered zelyonkoj. When cut dries, process it pounded charcoal.
Cutting off the summer irises, do not leave "stump" of the flower stalk, which in the spring of rots and becomes a focus of infection. Spike is necessary to break out at the bottom, and it is better to cut off "at zero" with a slope for drainage. If this was not done, rotted stalks should be cut irises, clean up the rot of living tissue and to cover cuts zelyonkoj and then priporoshit coal.
Old iris rhizome - another source of decay. As a rule, the two-year rhizome begins to rot from below - from the dying roots, so probing the back of iris in this case can not detect hidden rot.
The two-year rhizome best to remove the fission of irises in July or early spring. Cutting off a rhizome sections explore his young delÑ‘nok - they can affect the rot has spread from rhizomes. In this case, the next cut on delÑ‘nke, removing rot, will show how far gone the disease. Sectioned tissue damaged by rot at delÑ‘nki iris need until until healthy tissue.