What is wrong with weak plants?

Calla lily weakness can be understood as the lack of nutrients for some reason, resulting in unhealthy plants, more serious will die directly, let's take a look at how to treat calla lotus weakness!

The reasons for the weakness of calla lilies

Calla lily is a root plant, the main reason for plant weakness is root damage. The reasons are as follows:

Improper watering

Calla lilies need sufficient water during the growing period, but they can not be watered from top to bottom, so it is easy to irrigate the center of the leaves, which will cause tuber stagnant water, easy to suffer from bacterial soft rot, and cause root damage.

The soil is too wet and impervious.

Tuber root, bulb plant usually cultivate soil should be loose and breathable, avoid sticky heavy impermeable and poorly drained yellow clay. Tubers are buried too deep and rot easily. The soil is too dry, the root system is too dry will also lead to plant weakness.

Improper fertilization

When the temperature drops below 10 ℃ or 28 ℃, calla lilies will go into natural dormancy and the plant will stop growing, so watering must be controlled and fertilization must be stopped. Otherwise, the plant is weak and it is difficult to survive after the dormant period.

Red spider infestation

Red spiders suck plant sap and like to weave. When the whole leaf is entangled in the web, the calla will be extremely weak and will soon die.

Remove the basin and disinfect

Dig out the root tuber of Zantedeschia, eliminate the rotting part of the root, then soak it in 800x carbendazim solution and 1000 fold potassium permanganate solution for 30 minutes, dry and plant again in the pot.

For the original basin soil will be infected by bacteria, it is recommended to replace. After changing the basin, cut the leaves and stems as short as possible to promote root development.

Irrigation and fertilization

Watering with the method of soaking the basin, let the water slowly soak into the flowerpot through the basin, so as to soak the soil surface, this way can prevent rotting roots. Or when changing the basin, pile a small mound 1.5 square meters high directly above the root to prevent it from pouring directly into the foundation when watering.

Choose granular fertilizer for fertilization and sprinkle it on the surface. If the symptoms of plant weakness are not completely alleviated, try not to apply liquid fertilizer.

Control of diseases and insect pests

Open the window for ventilation, usually pay attention to frequent spray, maintain air humidity. When insect pests are found, spray the branches and leaves with 800 times of dimethoate, focusing on the back of the leaves. It's even easier to use a small amount.