How to deal with pests, smooth sailing pest control/leaf spot disease without rescue

Because plain sailing means good, many flower friends choose to keep it indoors. However, the indoor is certainly no better than the wild, because the conditions are poor, plain sailing will be disturbed by insects, then smooth sailing will be long pest how to do? Soil, light, moisture and so on may cause plain sailing and sickness. the following is the plain sailing pest control carefully arranged by the editor. If you love flowers, you must come in and have a look.

First, plain sailing long pest how to do, find the cause

In the smooth farming methods, we introduce indoor farming, smooth sailing has requirements on soil, light, water, etc., once the standard is not up to the standard, the leaves will grow insects or get sick. As for plain sailing, what to do with bugs is actually very simple. We just need to find out what the bugs are, and then solve them. The following are the symptoms and solutions of several pests, as follows:

1. Scale insects

Shell insects, so flowers hate one of the insects, smooth sailing insects, may be it. It is understood that the insect often swarms on branches, leaves and fruits. The mouthparts of adults and nymphs are inserted into the leaves and branches of flowers to absorb juice, resulting in the symptoms of branch and leaf wilting and deformity, and coal fouling disease.

Control methods: when there are few scale insects, gently brush off with a soft brush or wipe off with cotton balls and towel gourd stems; when there are too many scale insects, you can choose 40% omethoate, 50% malathion, 80% dichlorvos EC 800-1000 times, spray every 7-10 days, continuously 2-3 times, can effectively prevent the damage of shell insects.

2. Red spider

As one of the plain sailing diseases, the red spider is very troublesome. The way it does harm is to suck the juice by piercing the mouthparts into the leaves of flowers, so that the chlorophyll of flowers is destroyed, the leaves show gray-yellow spots or patches, and the leaves become withered and yellow, even fall off.

Prevention and control methods: usually should pay attention to the observation of flowers, found that flowers leaves abnormal color, should carefully check the back of the leaves. When individual leaves are damaged, insect leaves can be removed; when more leaves are damaged, spraying should be carried out as soon as possible. The commonly used pesticides are propargite, dicofol, dimethoate, Huachongjing, and so on.

About plain sailing long pest how to do, mainly is the above content, in fact, as long as we pay more attention to maintenance, bugs will not appear. However, it doesn't matter if you are attacked by bugs, we can find the cause calmly and solve the problem. Small bugs can't afford any big waves.

Second, plain sailing disease symptoms and control methods

In addition to being attacked by insects, diseases are also something we need to pay attention to. It is understood that there are three main diseases that are smooth sailing, bacterial leaf spot, brown spot and blight, among which leaf spot is basically irreparable. The specific symptoms and solutions are as follows:

1. Brown spot

The disease is one of the main diseases of plain sailing, it mainly harms the leaves of plants, the disease starts from the basal leaves, produces light green water-stained small round spots at the initial stage, and then gradually turns brown or black, and with the passage of time, the plaques gradually expand, and the damaged leaves wither and finally scorch and die.

Prevention and treatment: at the initial stage of the disease, 75% chlorothalonil, 50% mancozeb, 50% carbendazim and other agents can be sprayed. Its concentration is generally 800 × 1000 times aqueous solution, sprayed once every 7 days for 2 times 3 times, or 50% Shawang 1000 times liquid, continuously sprayed 3 times 4 times every 7 times 10 days, has a very good control effect.

2. Bacterial leaf spot

There are two ways of infection of bacterial leaf spot: the first type of infection begins on the leaf, which is called leaf infection. Leaf infection usually begins at the edge of the leaf and where there are many stomata in the lower part of the leaf. In the early stage, water-immersed spots can be seen on the back of the leaf, but in the later stage, brown spots appear on the edge of the leaf, and there is a yellow halo on the edge.

The second type of infection begins on the stem and spreads rapidly throughout the plant through the vascular bundle system, which is called systematic infection. Systematic infection can be detected by yellowing leaves, and the color of new leaves is dim at the initial stage of bacterial infection. In a short period of time, this type of infection can cause pedicels and leaves to fall off from the plant, rapid decay of the growth point, and bacterial pus overflow. Systematic infection is irreparable.

3. Epidemic disease

The disease is characterized by leaf spot, seedling quenching, rhizome rot, crown rot, branch ulcer and rot, etc. the damaged part of the plant produces dark-brown watery spot with no obvious edge, which can quickly cause necrosis and decay of the diseased part.

Prevention and cure method: ① chooses the place with good drainage to plant or put flowerpots. Avoid overdense plants and ensure good ventilation and light transmission. The diseased plant was removed and burned by ② in time. Disinfect the soil before planting and irrigate 95% Luheng No. 1 3000 times.

What to do when the peacock taro grows, the disease and pest control of the peacock taro / pay attention to the leaf spot

The beauty of peacock bamboo taro lies not only in its evergreen leaves, but also in the pattern of peacocks on its leaves. In life, many people like to plant peacocks and taros at home, but for some reason, they will grow worms and get sick, so there is no appreciation at all. So, what should we do if the peacock and taro grow into worms? The following is 4 minutes of peacock bamboo taro pest control, follow the editor to understand and have a look.

1. Peacock bamboo taro worm, spray with medicine

As a common indoor potted plant, the breeding method of peacock taro can be said to be very simple, as long as it is placed in a warm and ventilated semi-shady environment and watered frequently to ensure that the potted soil is moist. But because the novice is in the majority, they often cause the emergence of diseases and insect pests due to improper breeding, thus affecting the ornamental nature of the plant. next, let's take a look at the peacock bamboo taro has several kinds of diseases and pests.

2. Disease and pest control of peacock bamboo taro

1. Peacock bamboo taro leaf spot

Peacock bamboo taro is adaptable and rarely gets sick, but it can also suffer from leaf spot disease in a hot and unventilated environment.

Symptoms of the disease: at the initial stage, there are small yellow-brown spots on the peacock taro leaves, and halos will appear on the edges; in severe cases, the spots will quickly spread to every branch and leaf of the peacock taro, eventually leading to the withering and death of the peacock taro.

Prevention and control methods: in order to reduce the source of the disease, all the diseased branches should be cut off in order to reduce the source of the disease, and then the relevant agents should be sprayed. 38% cuproloxil 800 × 1000 times liquid, or 4% fluorosilazole 1000 times solution, sprayed once every other week, three times in a row can be effective.

2. Scale insects

In addition to diseases, peacock taro will be infested by insect pests, of which the most common is the shell insect, which will attach to the leaves and absorb nutrients and water.

Symptoms of damage: peacock taro will grow badly, and the leaves eaten by shell insects will also cause other diseases, which will directly lead to the withering and death of peacock taro.

Prevention and control methods: when a small amount of shell insects are found, they can be manually treated with brushes; if a large number of shell insects are found, they need to be sprayed with 50% malathion 1500 times or 1000 times of imidophos, spraying once a week and twice in a row.

3. Red spider

Mites are arachnid pests, which are one of the common pests that harm peacocks and taros. The insect often occurs when there is poor ventilation and harms the top of the plant.

Symptoms of damage: the top of peacock taro is reddish brown and there are cobwebs, affecting plant growth and development.

Prevention and control methods: after discovering diseases and insects, you can use enemy killing to deal with them, and you can also spray anti-mite 25% EC 800x solution, 73% Ketate 2000 times liquid and other drugs.

4. Aphids

If a peacock taro worm is found, it is likely to be an aphid, which generally appears in young leaves and newly grown buds and feeds on the sap in the leaves.

Symptoms of infringement: peacock bamboo taro leaves turn yellow, and black or yellow disease spots appear at the same time.

Control methods: in the initial stage of aphid occurrence, 40% omethoate 1500 times liquid or 90% trichlorfon solution can be sprayed to control aphids, and usually pay attention to reasonable watering and fertilization to improve its resistance to diseases and insect pests.

In the process of raising peacocks and taros, for various reasons, it is inevitable to encounter the illness of long worms. At this time, we should not be in a hurry, but should calmly find the cause, and then follow the above prevention and treatment methods to solve. With regard to the prevention and control of diseases and insect pests of peacock taro, the editor has introduced this, hoping to give you some help.

Control methods of common diseases and insect pests of pineapple, powdery mildew / leaf spot / aphids / beetles

Although pineapple is very tenacious in vitality and has a strong ability to adapt to the environment, in the process of planting, pineapple is sometimes infected with diseases and insect pests because of negligence in management, sudden changes in the environment, and so on. Once the consequences are unimaginable, here the editor will tell you a few common pest control methods to avoid tragedies.

Prevention and control of common diseases and insect pests of pineapple

1. Leaf spot

The main symptoms: pineapple leaves appear black-brown disease spot, the disease spot on the stem and petiole is long strip, the color is brown, at first small but will continue to expand, and finally become irregular, the disease spot will also produce wheel patterns, resulting in leaf withering, yellowing, plant growth weakening.

Prevention and control measures: usually pay attention to pruning to ensure that the density of branches and leaves of pineapple is moderate, increase the ventilation of the environment, and reduce air humidity. After the onset of the disease, it was sprayed with 38% cuproloxil 800-1000 times and 50% topiramate 1000 times.

2. Powdery mildew

Main symptoms: yellow dots appear on pineapple leaves, these dots will gradually expand and develop into round or oval, there will be a white powdery mildew layer on the surface of the disease spot, and usually the lower leaves suffer more seriously. as the leaves are covered with powder, resulting in the lack of photosynthesis, decline will be earlier.

Prevention and control methods: among the common diseases and insect pests of pineapple, powdery mildew is relatively easy to prevent. the law of its incidence is excessive application of nitrogen fertilizer, excessive density of branches and leaves, opaque light, and so on. Avoiding these two situations can well prevent powdery mildew, and when the disease occurs, it is necessary to spray with 1000 times of trimethoprim.

3. Beetles

The beetle is a kind of pest with many kinds. It will eat the root and stem of the pineapple, causing damage to the underground part, especially in the process of reproduction, which is easy to be invaded by the beetle, resulting in a decline in the success rate of reproduction. In addition, it may also harm the leaves, flowers, fruits and so on.

Prevention and control methods: choose good and robust pineapple varieties when planting, usually do a good job of environmental hygiene, ensure that the air humidity is moderate, the temperature is not too high, and let pineapple receive sufficient light at the same time. After the onset of the disease, the beetle can be sprayed with 2500 times of deworming essential oil.

4. Aphids

Aphids are very small, but they reproduce very fast. They are one of the most common pests. They suck juice from pineapple leaves and cause plant malnutrition. Aphids are one of the most troublesome pests in flower culture, but their control methods are relatively mature.

Prevention and control methods: when aphids are small, you can use a brush to gently scrape off the aphids to reduce the harm of aphids to the plant, and then cut off the damaged branches and leaves, and then need to spray drugs to completely eliminate aphids. Commonly used drugs have 40% omethoate emulsion 2000 times, and so on.