Detailed Guide to Pest and Disease Control Methods for Morning Glory

Pest and Disease Prevention for Morning Glory:

[Symptoms] The affected parts are mainly leaves, leaf stalks and tender stems. On affected leaves, small light green spots appear initially. They gradually turn pale yellow with indistinct edges, and in severe cases expand into large lesions. Later, white scar-like protrusions form on the underside of the diseased area, and when they rupture, a white powdery substance is released, which consists of the pathogen's sporangia. When tender stems are affected, flowers and stems become twisted. When lesions encircle leaf stalks or tender shoots, the host parts above the girdle grow poorly, shrivel and die.

[Pathogen and Disease Pattern] The pathogen is Convolvulus white rust, a fungus of the genus Albugo. The pathogen overwinters as oospores within diseased tissue. In the following spring, the oospores germinate and produce sporangia, which infect morning glory and other plants of the Convolvulaceae family. The disease generally peaks from August to September. Morning glory seeds can carry the fungus and become a source of infection the following year.

[Control Methods]

① Promptly pull out and destroy diseased plants to reduce infection of seeds.

② Select and keep disease-free seeds for propagation, and disinfect seeds before sowing. Avoid crop rotation with plants of the Convolvulaceae family.

③ At the early stage of disease, spray 1% Bordeaux mixture or 50% Yimeijing (metalaxyl) at 500 times dilution, once every 10-15 days, for a good control effect.

2. Damping-off

Symptoms: Morning glory normally grows prostrate, but damping-off can also occur. When the disease strikes, the entire plant wilts and lies flat on the ground, and the leaves gradually turn yellow and rot.

Control methods: Once the disease occurs, promptly pull out diseased plants and drench the soil with pesticides such as Pulike (propamocarb), Yishuangling (metalaxyl), and Genbingzhi. You can also use chlorothalonil or thiophanate-methyl at 800-1000 times dilution.

What to Do When Morning Glory Gets Bugs, Common Pest and Disease Control for Morning Glory / Aphids Cause Great Damage

Morning glory is one of the most common flowers in daily life. It is often seen along roadsides in the wild, and is now grown in pots at home by many flower lovers. But indoors is not the same as outdoors; the environment for morning glory needs to be created by us, and with the slightest mistake, morning glory will be troubled by pests and diseases. So what should you do when morning glory gets bugs? It is very simple: find out which insect it is and deal with it accordingly. Below is the common pest and disease control for morning glory. Come and take a look.

I. What to Do When Morning Glory Gets Bugs: Spray Pesticides to Kill Them

In the methods for growing morning glory, we learned that morning glory has requirements for soil, water, light and so on. Once these fail to meet the standard, insects will come. As for what to do when morning glory gets bugs, it is very simple: just spray pesticides to kill them. Pest and disease control for morning glory is something flower lovers should master. As for the specific pests and diseases, let's continue reading below.

(1) Pest Symptoms and Solutions for Morning Glory

Potted morning glory generally suffers little from insect infestation, but if your home is especially messy, it will naturally attract many pests. Overall, the common pests of morning glory are aphids and leaf-rolling moths, and after discovering them you can spray relevant pesticides to kill them. Specifically what to use is as follows:

1. Aphids

Aphids are the most common and also the main pest of morning glory. They mainly harm the leaves and tender stems of morning glory, causing relatively severe damage. Not only that, the honeydew secreted by aphids attracts ants and triggers sooty mold or other fungal diseases.

Solution: You can use natural enemies to kill them, such as the red-spotted ladybird, Japanese square-headed beetle, and red-ringed ladybird, which are effective in preying on aphids. However, when a large number of aphids appear, isolation measures should be taken, and omethoate or pyrethrin at 1000 times dilution should be sprayed alternately.

2. Red Spider Mites

This pest is one of the main pests of morning glory, though it is not commonly seen. But once infested by red spider mites, it is very troublesome. They harm plants by piercing their mouthparts into flower leaves to suck sap, damaging the chlorophyll of the flowers, causing the leaves to show grayish-yellow spots or patches, and the leaves become withered and yellow, or even fall off.

Solution: When the above symptoms are found, pay attention. If only individual leaves are affected, the infested leaves can be removed; when more leaves are affected, pesticide should be sprayed early for control. Commonly used pesticides include propargite, dicofol, dimethoate, Huachongjing, and fenvalerate.

(2) Disease Symptoms and Solutions for Morning Glory

What to do when morning glory gets bugs -- after reading the above, everyone should know what to do! But besides insect infestation, diseases also constantly threaten morning glory. The common diseases of morning glory are: white mold disease, leaf spot disease, viral disease, and seedling damping-off. The specific symptoms and solutions are as follows:

1. White Mold Disease

This disease is one of the main diseases of morning glory. It mainly harms the leaves of morning glory. The symptoms are: patches of white spots appear on the leaves, and in later severe stages the diseased leaves fall off.

Solution: After discovering the above symptoms, remove the diseased leaves as soon as possible and promptly spray 75% chlorothalonil at 600-800 times dilution.

2. Leaf Spot Disease

Leaf spot disease generally appears after wind damage, sunscald and frost damage. It mainly harms the leaves of petunia, and in severe cases can likewise cause the death of the entire plant.

Solution: Promptly remove and burn the diseased leaves, and clear away the surrounding fallen leaves as soon as possible; spray 50% amobam at 1000 times dilution.

3. Brown Spot Disease

This disease is also one of the main diseases of morning glory. When it occurs, round or angular lesions appear on the leaves, with a dark gray center and dark brown edges. Many pale black mold layers form on the surface of the lesions, and in severe cases the lesions do not cover the entire leaf, and the leaves wither.

Solution: Promptly remove diseased leaves when found; at the early stage of disease, promptly spray Guoguang Bixian, once every 7-10 days, and spraying 2-3 times in succession is enough.

4. Viral Disease

Viral disease is one of the main diseases of morning glory. Symptoms: morning glory shows slow growth and weak roots and stems, which very likely means it has been infected with viral disease; in severe cases, the leaves show yellowing.

Solution: Remove the diseased leaves, and in addition spray 40% omethoate at 1000 times dilution.