What to do if orchid leaves turn yellow. Haveorchids wither leaves: what to do, what are the causes of the diseaseflower

Пн, 13 июн 2016 Автор: Валерия Гришанова

The orchid in its wide variety is the pride of any
florist.

But to care for a beautiful and capricious plant,
relocated from tropical latitudes to our window sills is not easy.
Most often you can face the problem of yellowing leaves.

When you do not need to worry

The most common, but quite harmless
causes are a natural aging process and too narrow
flowerpot.

In the first case, only the lower leaves turn yellow, and no
needing to do something: they will dry out and separate themselves
from the barrel, then they can be thrown away. Leaf life cycle
varies from different types of orchids – renewal of foliage can
occur from once a year to five years.

If the whole flower looks healthy and the leaves turn yellow,
perhaps the old pot has become just a small plant and it is required
transfer. A new pot should be more than a maximum of 2 cm in
Otherwise the substrate will dry out worse and it will happen.
waterlogging and rotting roots.

What to do if the orchid leaves turn yellow due to watering

Sometimes excessive attention and care causes yellowing.
for the plant, namely abundant watering. Due to high humidity
the ground does not allow air, the roots begin to rot and cease
supply the leaves with nutrients.

The plant signals excessive watering,
if a:

• Leaf cover becomes yellow and soft, and this
applies to both lower and upper leaves.

• The plant is covered with black spots.

• The roots darken.

• The flower sits in the ground loosely, scrolls and easily
taken out.

In this case, you need to get the orchid out of the pot and inspect
its roots. If they are not completely destroyed, then the flower
transplanted into a new substrate.

Реже встречаются случаи болезни растения из-за
недостаточного полива
, поэтому необходимо убедиться в
cause yellowing of the leaves before watering the flower. For this
several layers of soil are removed – if the substrate is dry inside, then
the problem is really water shortage. In this situation, the flower
should be watered. If you encounter such a problem, despite
regular watering is worth reviewing the method itself. Many newbies
choose the classic method using a watering can, but
water flows into the pan, and the roots do not have time to feed on healthy
substances. It is necessary to switch to watering by dipping the pot in
dishes with water for half an hour.

The orchid is a fastidious plant, so the leaves can turn yellow
start because of hard watering. This leads to an increase in
содержания солей в грунте и ухудшению способности flower усваивать
iron. The solution will be a transfer to a new ground and the transition to the mixture
distilled and pipeline water in proportions 1: 1.

Совет: не рекомендуется беспокоить и
пересаживать растение в период цветения
.

Due to the lack of illumination of the orchid, the leaves wither: what
do

Light-loving species like Wanda, Cattleya or Lelia can
suffer due to inadequate lighting. Their leaves with it
become yellow, lethargic and soft. In this case, the flower
put in a lighted place.

However, you need to be careful: the plant is not recommended to be placed
on the windows of the south and west on hot days – it can
get sunburns. At the same time only the places on which
sun rays fall. The flower must be removed from under the direct
sun exposure, removing the affected leaflets is not necessary –
the affected area is dry, and the healthy green part of the leaf
continue to function and nourish the plant.

Что do, если листья орхидеи желтеют из-за паразитов и
fungal diseases

With the defeat of the plant by infectious diseases, in the first
queue, it must be isolated from healthy neighbors to
avoid the spread of infection. Return the orchid to the rest
colors are only possible if some time after
treatment symptoms do not recur.

1. Fusarium fungus

Excessive watering can cause fusarium
fungus, as a result of rotting roots, and the plant does not get
nutrients. Листья пораженного flower желтеют,
curl around the edges and darken over time. If not on time
take action, the orchid may die.

It is necessary to cut off the diseased roots and leaves, process the affected
plots with special antifungal drugs and transplant
flower in fresh substrate. After that, in order to avoid a new flash
diseases the plant is immersed three times a day for 10 days in
the base solution of 0.2%.

2. Bacterial spotting

Another dangerous disease is bacterial
spotting – at first the leaf begins to turn yellow, darken and
soften and then oozing ulcers appear on it. Required
cut the affected areas and treat the cut points with a solution
iodine. If the symptoms do not reappear within 10 days, the infection
gone, and the orchid can be returned to the rest of the flowers.

3. Whitefly

Houseplants, like street, may suffer from flying
insect parasites. The result of the life of the whitefly
it becomes white deposition on the leaves, under which they acquire
yellowish or reddish tint. To start the plant is necessary
wash with a solution of soap, and then process
drug “Aktilikt” according to the instructions.

4. Root Tick

The parasite affects only the roots and the main shoots of the plant, with
this leaves become soft, turn yellow and blacken. Flower
treated with the drug “Karbofos” or “Agrovertin” according to the instructions and
transplanted into fresh soil.

Без видимых причин у орхидеи вянут листья: что do

The reason for the deterioration of leaf cover may be a lack
or overabundance of growth stimulants and fertilizers. First, with
additional feeding must comply with the recommended rules
otherwise you can overdo it and destroy the plant. Secondly,
it is still necessary to fertilize the orchid, since the flower arrived from
tropical climate and may not receive all the necessary substances in
our conditions.

Often sellers overfeed plants with growth stimulants and
fertilizer to give it a more lush and attractive look.
However, visible symptoms can appear only after many
months. In this case, you need to put the plant in bright
place and refuse to lure for 15 days. Then you can
start using nitrogen fertilizers no more than once
in two weeks and in solution no more than 50%.

With the occasional use of a high concentration of the drug,
rinse the root system under running water. Proceed to
fertilizing plants can only be six weeks later.

With a sharp change in environmental conditions, such as temperature,
lighting or location, the plant may be stressed.
Стрессовое состояние сказывается на внешнем виде flower — листья
wither, become soft and turn yellow. Let Orchid
acclimatize in a new atmosphere and create optimal
условия для здорового роста flower.

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