What to Do When Dieffenbachia Gets Pests? 6 Common Pest and Disease Control Methods

Growing Techniques Jan 1, 1970 0 views

Coming home and looking at the spotted, broad, thick leaves of the dieffenbachia, eye fatigue is instantly relieved. However, beautiful things need to be carefully cared for. Once improperly cultivated, dieffenbachia will get pests and diseases, which will seriously affect its ornamental value. So, what should you do when dieffenbachia gets pests?

I. When Dieffenbachia Gets Pests, Spray with Pesticide

During the growth of dieffenbachia, due to various reasons, the plant will inevitably suffer from pest and disease damage. The main diseases include: leaf spot, brown spot, anthracnose and root rot; the main pests include: scale insects, red spider mites, etc. Once discovered, you should immediately spray pesticide for control. As for what pesticide to spray, let's continue reading.

II. Pest and Disease Control for Dieffenbachia

1. Scale insects

Scale insects are the most common pests on dieffenbachia. They are small in size, often gather together, and secrete a waxy substance that looks like a pile of white wax powder, greatly damaging the plant's ornamental value. These insects often cluster on branches and leaves, sucking plant sap for sustenance, causing dieffenbachia leaves to turn yellow, and in severe cases causing branches to wither or the entire plant to die.

Control method: When there are few scale insects, simply pick them off with a wooden stick and crush them. When there are many, spray with 1000-15000 times diluted dichlorvos solution, or 50% malathion emulsion at 1000 times dilution for control.

2. Red spider mites

A mite pest of the arachnid class, it is one of the common pests harming dieffenbachia. This pest often occurs when ventilation is poor, and will damage the top of the plant, causing the top of the dieffenbachia to turn reddish-brown and develop spider webs, affecting the plant's growth and development.

Control method: After discovering the pest, you can treat it with decis, or spray with 25% anti-mite emulsifiable concentrate at 800 times dilution, 73% propargite at 2000 times dilution, or other such chemicals.

3. Leaf spot disease

When indoor temperatures fluctuate greatly in a short period, or when watered too much during the dormant period, dieffenbachia is prone to leaf spot disease. When the disease occurs, many small brown spots will appear on the dieffenbachia leaves, and in severe cases the spots will cover the entire leaf.

Control method: Promptly remove diseased leaves and destroy them in a centralized manner to reduce the source of infection; during the disease period, spray with 65% zineb at 500 times dilution or 25% myclobutanil emulsifiable concentrate at 800 times dilution for control. Spraying 1-2 times every 10-15 days will show results.

4. Brown spot disease

One of the pests and diseases of dieffenbachia, it mainly harms the leaves. When the disease occurs, grass-yellow wet lesions will appear on the edges and tips of diseased leaves; in severe cases, the leaf spots merge and expand, turning into brown-yellow patches, affecting plant growth and reducing ornamental value.

Control method: Upon discovering the above symptoms, spray pesticide for control. The chemicals can be 50% carbendazim wettable powder at 600 to 800 times dilution, or 50% thiophanate-methyl, sulfur suspension at 600 to 800 times dilution. Spray alternately 3 to 4 times, once every 7 to 8 days, for better control results.

5. Anthracnose

When it comes to what diseases dieffenbachia can suffer from, anthracnose is unavoidable. It mainly harms the fleshy stems, causing lesions to appear on the stems. The spots formed by this disease are relatively large, with a diameter of 2-3cm, some semicircular in shape and some oval, brown in color, and turning grayish-white in the later stage.

Control method: After discovering that dieffenbachia has anthracnose, immediately cut off the diseased parts, and apply copper oxychloride solvent once every 5 days; if the disease has not been present for long, use 30% copper oxychloride combined with 70% mancozeb, apply once every ten days, spraying 2-3 times is sufficient.

6. Root rot

During the growth of dieffenbachia, due to watering and other issues, beginners easily encounter root rot in the plant. When the disease occurs, dieffenbachia leaves begin to wither and die. When storing corms, the corms easily rot and become dry and hard.

Control method: Upon discovering the above symptoms, if the condition is mild, spray with 500 times diluted zineb solution; if the rot is severe and the corms have seriously deteriorated, just throw them away.

Summary: In order to appreciate the beauty of dieffenbachia, everyone should strictly follow the cultivation methods for dieffenbachia to care for it. Of course, if pests and diseases appear, there is no need to panic. Just follow the above control methods to solve the problem. That's all for the pest and disease control of dieffenbachia. Hope it helps everyone.

What to Do When Chinese Evergreen Gets Pests: 5 Common Pest and Disease Control Methods for Chinese Evergreen

As a common foliage plant, Chinese evergreen is not difficult to cultivate, and it looks good, so it is kept in many homes. However, there are many beginner growers who do not systematically care for it according to the methods, resulting in the plant getting pests and diseases. So, what should you do when Chinese evergreen gets pests? In response, I have summarized 5 common pests and diseases of Chinese evergreen. Let's take a look!

I. When Chinese Evergreen Gets Pests, Spray with Pesticide

Coming home and looking at the large, green leaves of the Chinese evergreen, eye fatigue is instantly relieved. However, beautiful things need to be carefully cared for. Once improperly cultivated, Chinese evergreen will get pests and diseases, which will seriously affect its ornamental value. As for what to do when Chinese evergreen gets pests, it is actually very simple: identify the specific pest, then spray the corresponding pesticide to solve it.

II. Pest and Disease Control for Chinese Evergreen

1. Brown soft scale

When it comes to pests on Chinese evergreen, it is generally brown soft scale. This insect is small in size and often gathers together. It mainly attacks the plant's leaves, affecting photosynthesis, causing Chinese evergreen leaves to turn yellow and impairing its ornamental value.

Control method: When brown soft scale is discovered, brush it off with a writing brush, then rinse clean with water; then spray with 50% omethoate emulsion or 50% monocrotophos. Generally, one application is enough to achieve control.

2. Red spider mites

A type of mite, it is also one of the common pests of Chinese evergreen. This pest often occurs when ventilation is poor, and will damage the top of the plant, causing the top of the Chinese evergreen to turn reddish-brown and develop spider webs, affecting the plant's growth and development.

3. Leaf spot disease

When indoor temperatures fluctuate greatly in a short period, or when watered too much during the dormant period, Chinese evergreen is prone to leaf spot disease. When the disease occurs, many small brown spots will appear on the Chinese evergreen leaves, and in severe cases the spots will cover the entire leaf.

Control method: Upon discovering the above symptoms, promptly remove diseased leaves and destroy them in a centralized manner to reduce the source of infection; then spray with 65% zineb at 500 times dilution or 25% myclobutanil emulsifiable concentrate at 800 times dilution for control. Spraying 1-2 times every 10-15 days will show results.

4. Anthracnose

When it comes to what diseases Chinese evergreen can suffer from, anthracnose is unavoidable. This disease mainly harms the leaves. The affected areas initially show several pale yellow, dark brown or light gray small patches. As time goes on, it will infect the stems and branches, seriously affecting the plant's growth.

Control method: Upon discovering the above symptoms, promptly cut off diseased leaves and burn them in a centralized manner to reduce the source of infection; in severe cases, spray with 50% carbendazim at 1000 times dilution or 70% thiophanate-methyl at 1000 times dilution for anti-rot treatment. Results will show after 2-3 applications.

5. Brown spot disease

In addition to the above pests and diseases, brown spot disease is also a common disease of Chinese evergreen. This disease mainly harms the leaves, causing grass-yellow wet lesions on the leaf edges and tips; in severe cases, the leaf spots merge and expand, turning into brown-yellow patches, affecting plant growth and reducing ornamental value.

That's all for the pest and disease control of Chinese evergreen. I believe everyone now knows what to do when Chinese evergreen gets pests or diseases! In general, if you are not careful, Chinese evergreen is easily troubled by pests and diseases, so everyone must care for it attentively. Only then will pests not come knocking. Finally, may everyone's Chinese evergreens grow beautifully~

What to Do When the Thick-Leaf Plant Gets Pests: 4 Common Pest and Disease Control Methods for the Thick-Leaf Plant

The thick-leaf plant, a plant with extremely strong adaptability, can immediately take root when a single leaf falls into the soil! Such a plant should not easily get pests and diseases, but there are many beginners who simply do not know how to care for it, and end up attracting pests. So what should you do when the thick-leaf plant gets pests? Below are 4 pest and disease control methods for the thick-leaf plant. Let's take a look!

I. When the Thick-Leaf Plant Gets Pests, Spray with Pesticide

During the growth of the thick-leaf plant, the plant will inevitably get pests and diseases. The main pests are scale insects and aphids, and the main diseases are gray mold and powdery mildew. Their appearance will all affect the growth of the thick-leaf plant. So once discovered, pesticide should be sprayed immediately for control. As for what pesticide to spray, let's continue to look at the pest and disease control for the thick-leaf plant.

II. 4 Pest and Disease Control Methods for the Thick-Leaf Plant

1. Scale insects

Although the thick-leaf plant is not prone to pests, it can also get scale insects when the environment is not well ventilated and care is improper. This insect uses its piercing-sucking mouthparts to suck sap from leaves and small branches, affecting the plant's normal growth and development, and in severe cases causing branches or leaves to die.

Control method: After discovering a small number of scale insects, gently brush them off with a soft brush, then rinse clean with water; when there are many scale insects, you need to spray pesticide. The chemical can be Kuangshajie at 800-1000 times dilution. Generally, one application is enough to achieve control.

2. Aphids

The most commonly occurring pest of indoor potted plants, it also harms the health of the thick-leaf plant. Aphids mainly harm the tender leaves and stems of the thick-leaf plant. They parasitize on the leaves and suck sap. Once aphids appear, they are densely packed and look very frightening, so protection must be timely.

Control method: When a small number of aphids is discovered, you can brush them off with tools like a writing brush; when there are many aphids, you need to use related insecticides. I recommend using 2.5% derris extract emulsifiable concentrate at 1200 times dilution. After continuous spraying several times, the effect is excellent.

3. Gray mold

This disease mainly invades through weakened host tissues, and can harm the plant's stems, leaves and flowers, with flowers being the main target. When the thick-leaf plant's leaves and petioles appear grayish-white, water-soaked, or even the tissue softens to the point of rotting, it may have contracted gray mold.

Control method: Upon discovering the above symptoms, promptly cut off diseased leaves to reduce the source of infection; in the early stage of the disease, spray with 70% thiophanate-methyl wettable powder at 1000 times dilution, or 50% carbendazim wettable powder at 800-1000 times dilution for control. Spray once a week, and 2-3 consecutive sprays give excellent results.

4. Powdery mildew

Powdery mildew, another disease of the thick-leaf plant, mainly harms leaves, tender stems, flower buds and buds. Disease symptoms: many white powdery lesions will appear on the thick-leaf plant's leaves. These lesions greatly affect photosynthesis, and over time can even cause the plant to die.

Control method: Promptly cut off severely diseased plants or severely diseased parts and burn them in a centralized manner to reduce the source of infection; in the early stage of the disease, spray with 50% carbendazim wettable powder at 800 times dilution, 80% zineb at 500 times dilution, or 75% chlorothalonil at 500 times dilution for control. Alternating them gives better results.

That's all for the pest and disease control of the thick-leaf plant. I believe everyone now knows what to do when encountering pests or diseases! In general, the thick-leaf plant is still not prone to pests. As long as everyone follows the cultivation methods for the thick-leaf plant to care for it, pests will not come knocking. Finally, may everyone's thick-leaf plants grow green and strong!