Common diseases and insect pests of lilies and their control measures

Diseases and insect pests can be said to be the greatest harm to plant development, so diagnosis and treatment should be done in time. The following is a brief introduction to several diseases and insect pests that lilies are prone to infection and how to prevent them.

Common diseases and insect pests of lilies and their control measures

Lily mosaic disease

Symptom

Also known as "lily latent mosaic disease". The specific symptoms are that the leaves will have deep and light brown green spots and withered spots, the infected plants will grow short, the leaves will become smaller and curl at the edges, and occasionally the petals will grow light brown fusiform spots, the flowers are abnormal in shape and can not stretch out.

Prevention and cure method

The remaining seeds should be selected on the virus-free bulbs, and the control of insect pests such as aphids and leafhoppers should be done well. Once the disease is infected, the diseased branches should be pulled out and destroyed immediately.

Lilium spot

Symptom

In the early stages of the disease, the leaves grow small brown spots, which may expand into brown spots with darker brown edges. Then there will be a lot of black spots in the center of the disease spot, which will seriously blacken the whole leaf and die.

Prevention and cure method

The diseased leaves were removed and sprayed with 65% concentration of Dysen zinc wettable powder to cut off the spread of the virus.

Lily bulb rot

Symptom

The specific symptom is that the bulbs of lilies appear brown spots, and in severe cases, all the bulbs turn brown and rot.

Prevention and cure method

At the beginning of the disease, 50% concentration of Dysen zinc solution was selected for spraying.

Lily mosaic blight

Symptom

In the early stage of the disease, it appeared at the tip of the lower part of the leaf, and concentrated on the leaf. Irregular round disease spots of large and small appeared on the diseased leaf, and the color was divided into light yellow and grayish brown due to different varieties. Leaves that are seriously ill will die.

Prevention and cure method

The cultivation of lilies in the greenhouse should ensure ventilation and light transmission and improve the intensity of management. when the disease occurs, the diseased leaves should be removed, and the 50% concentration of Bacterin wettable powder or the equivalent Bordeaux solution of 1% concentration should be sprayed every 7-10 days. Spray 3-4 times.

Control methods of Lily Diseases

It is said that "a long illness makes a good doctor", but we flower friends are the only ones who can become flower friends to prop up an airtight umbrella for their beloved flowers.