How do geraniums grow bugs? pest control of geraniums / 2 insect pests and 4 diseases

Geranium is not a common plant in people's life, which has a very high ornamental value. However, in beautiful flowers, if there are diseases and insect pests, they will gradually wither. So what should we do about geraniums growing worms? In fact, the method is very simple, as long as you confirm the cause of the disease and prescribe the right medicine. What should be done about pest control of geraniums? Next, the editor will take you to learn about it.

1. What to do with geranium worms / 2 insect pests

The two most common pests of geranium are nematode pest and whitefly pest, which are very harmful to geranium. As for how to treat geraniums, there are detailed measures below. Let's move on.

II. Pest control of geraniums

1. Nematode pests

Nematode is a common kind of pest control of geranium. This pest mainly occurs when the soil moisture is too high, it will inhabit the soil and slowly harm the roots of plants, resulting in slow plant growth, long time will make the roots rot and die.

Control method: when this kind of pest is found, it is necessary to cover the soil surface with a layer of pesticide sand in time, so that the nematode can not absorb air in the soil and drill out, then the worm body and sand will be clear together.

two。 Whitefly pest

Whitefly this pest is mainly harmful to the leaves of the geranium, it will suck the occupation of the leaves, thus causing the leaves to turn yellow, and eventually will gradually wither, so the encounter of this pest must be dealt with in time.

Control methods: the most effective way to produce this kind of pest is to use chemical treatment directly at the initial stage, you can choose insect chitinase inhibitor to spray, usually spray once every 5-7 days, lasting 2-3 times, you can thoroughly understand this pest.

3. Leaf spot disease

As the name implies, the disease mainly harms the leaves of the geranium. when the disease occurs, there will be a large number of water-like spots on the leaves of the plant, which will gradually link together with the passage of the event, resulting in the death of the plant.

Prevention and treatment methods: when this disease occurs, we must deal with it as soon as possible. Generally, Bordeaux solution can be selected for spray control when the initial symptoms are mild, and if it is in the later stage, we can only choose to pull out the root of the disease and return to the middle.

4. Grey mold disease

This disease mainly threatens the flowers of geranium. the disease usually occurs when the weather is humid. In the early days, gray mold will appear on the flowers, making the flowers gradually rot and wither. It's a very harmful disease.

Prevention and treatment: the most direct way to appear this disease is to spray the diseased plant with 2000 times of 50% Sukeling wettable powder, once every 5-6 days, lasting 3-4 times. The disinfection of the diseased plant must be carried out after the prevention and treatment is completed, which we have to remember.

5. Rust disease

As the name implies, when the geranium is infected with this disease, there will be a half spot like black rust on the leaves, which will become more and more with the passage of time, and the development will eventually make the leaves fall off.

Prevention and treatment: in the treatment of this disease, the first step is to remove the diseased leaves in time, and then use 1000 times of the wettable powder to prevent and cure the diseased plants, which can be basically cured after spraying several times.

6. Root cancer disease

Root cancer is a disease that mainly harms the rhizome of the geranium. at first, a nodule-like substance will appear in the rhizome, which will slowly become bigger and harder with the passage of the event, making the plant dry and the leaves falling. in the end, it will cause the death of the whole plant.

Frequently asked questions and answers to geranium culture

Geranium is a plant that can be raised at home. Its shape is spherical and the color of the geranium is very rich. Today, the editor will tell you about some of the troubles we will encounter in our daily life. If you also have some confusion about breeding geraniums, let's learn about it.

Common problems in geranium culture:

Question1: I like geraniums very much, but I don't know if I can raise them well. Is it suitable for my climate here?

Answer: geranium is very easy to use, compared with delicate Phalaenopsis, cyclamen and other flowering plants, less investment, more extensive management, but can see the same or even beyond the flowering effect, suitable for beginners. Everything starts from the beginning, no one can guarantee that the first planting will be successful, even the veterans who have been cultivated for many years are constantly summing up and making progress. Believe in yourself is the most important, how can you know if you don't practice? Geranium is suitable for the climate of most areas, because it belongs to balconies, windowsills and other semi-indoor flowers, the climate requirements are not strict, the temperature is 0-35 degrees Celsius, there are 4 hours or more sunshine can be cultivated.

Question2: what kind of flowerpot should I use, what kind of soil should I use to grow geraniums, and do I need any fertilizer?

Answer: the selection of geraniums is too small, enough can be used, turn the pot frequently, generally speaking, according to different series of varieties, the growth rate is different from the plant type, such as the angel series, the plant type is compact and compact, suitable for 9-12cm caliber flowerpot cultivation, through more than half a year cultivation, grow larger, turn the pot for 15cm caliber is also suitable. Of course, for the florists of the training competition type (mentioned below), the 30cm diameter flowerpot is not big, but it is not a common training mode.

Neutral PH is the best cultivation medium for Xiaotian, or slightly acid, generally PH6-7 is the most ideal, with good permeability and filtration and deep bottom fertilizer, it is generally recommended to use mixed cultivation medium, or special cultivation medium for geranium, garden soil or humus soil is not recommended because of a large number of bacteria, poor ventilation and drainage performance or difficult to predict acidity and alkalinity, so family pot planting is not recommended. According to the description of the cultivated soil purchased, decide whether to add base fertilizer or not. Aolu 501315318 and other slow-release fertilizers rich in trace elements such as calcium, magnesium, iron and zinc are usually used.

Question3: do I need to water and fertilize every day after planting? Where should I put it?

Answer: the geranium is more resistant to drought, is more afraid of stagnant water, does not need to be watered every day, and how often it is difficult to generalize. The general judgment method is: the weight of the flowerpot becomes obviously light, and the color of the cultivated soil is light, and probe into it with your fingers. Feel dry and granular and not sticky, indicating that the basin soil is relatively dry and can be watered properly. If not, there is no need for watering. The application of water-soluble fertilizer should be carried out when the temperature is cool and pleasant in spring and autumn, usually once or twice a week, depending on the description of the water-soluble fertilizer used. When the temperature is 5-30 degrees, try to put the small sky where there is plenty of light. Geraniums are light accumulators. At this temperature, the more light, the better. Below 0 degrees, higher than 35 degrees climate conditions, must take artificial protection measures, specifically: below 0 degrees, put in an indoor warm place, stop watering, as far as possible so that it can receive light through the glass indoors. Get through the cold winter. Higher than 35 degrees, the geranium has been unable to produce nutrients in normal photosynthesis, and even its own synthesis of chlorophyll will be hindered. It can be found that the leaves turn yellow, wither, and the new leaves appear white, which are all signs of excessive temperature. At this time, the seedlings are moved to indoor cool and ventilated places to reduce watering as much as possible. if possible, they can be put on the windowsill of the air-conditioned room to spend the summer safely.

Question 4: will geraniums get sick and grow worms? How can I prevent and treat it?

Answer: no plant will grow insects and diseases on its own. These are all caused by exogenous invasion. Like us, diseases and colds are caused by the environment. Geraniums have a special smell, which is disgusting to insects. Therefore, pests are not common, because they are afraid of waterlogging, too damp and stuffy environment, without ventilation and high air humidity, they are prone to bacteria and fungal diseases, mainly Botrytis cinerea. Mildew spot, black shank, soft rot and so on. Attention should be paid to the cleanliness of the cultivation environment, regular disinfection, keeping dry and ventilated, which can effectively prevent the occurrence of diseases. The cultivated soil of unknown source must be exposed to the sun for more than a day and fully disinfected and reused with disinfectant before use. For the diseased plants, the diseased leaves and stems should be removed as far as possible, and treated with bacterial fungus disinfectant and root irrigation, the effect is better.

Question 5: when will geraniums blossom? Why do I blossom rarely and not as much as in the picture?

A: unlike most plants, the flowering of geraniums is not limited by age, that is to say, only seedlings with long fingers may have the ability to blossom, and most geraniums bloom continuously, crop after crop, as long as the environment permits. You can see flowers all the year round. So what are the conditions for geraniums to bloom? Lighting: direct light for more than 4 hours, temperature: temperature between 10-30 degrees, nutrients: flowering is a very hard thing, if the lack of nutrients, Xiaotian may also strike out!

Although Xiaotian can blossom at a very young age, such seedlings should usually remove the buds and carry out heart-picking and pruning of the terminal buds, so that more lateral buds can germinate and make the plant type more robust and full. although after 2-3 times of removal of terminal buds and buds, the florescence will be delayed, but when it blossoms again, it will be full of brilliant pots, such labor and waiting is very worthwhile, in addition. When the flowers begin to wither, be sure to clean them in time to avoid wasting nutrients. Delay the development of new buds.

Geranium culture, flower friends answer frequently asked questions

Before summed up the likes and dislikes of geraniums, this is some of the elements and roots of the flower seedlings, of course, to plant well, or need more subtle care and skills. Let's summarize some skills in the form of questions and answers.

Question1: I like geraniums very much, but I don't know if I can raise them well. Is it suitable for my climate here?

Answer: geranium is very easy to use, compared with delicate Phalaenopsis, cyclamen and other flowering plants, less investment, more extensive management, but can see the same or even beyond the flowering effect, suitable for beginners. Everything starts from the beginning, no one can guarantee that the first planting will be successful, even the veterans who have been cultivated for many years are constantly summing up and making progress. Believe in yourself is the most important, how can you know if you don't practice? Geranium is suitable for the climate of most areas, because it belongs to balconies, windowsills and other semi-indoor flowers, the climate requirements are not strict, the temperature is 0-35 degrees Celsius, there are 4 hours or more sunshine can be cultivated.

Question2: what kind of flowerpot should I use, what kind of soil should I use to grow geraniums, and do I need any fertilizer?

Answer: the selection of geraniums is too small, enough can be used, turn the pot frequently, generally speaking, according to different series of varieties, the growth rate is different from the plant type, such as the angel series, the plant type is compact and compact, suitable for 9-12cm caliber flowerpot cultivation, through more than half a year cultivation, grow larger, turn the pot for 15cm caliber is also suitable. Of course, for the florists of the training competition type (mentioned below), the 30cm diameter flowerpot is not big, but it is not a common training mode.

Neutral PH is the best cultivation medium for Xiaotian, or slightly acid, generally PH6-7 is the most ideal, with good permeability and filtration and deep bottom fertilizer, it is generally recommended to use mixed cultivation medium, or special cultivation medium for geranium, garden soil or humus soil is not recommended because of a large number of bacteria, poor ventilation and drainage performance or difficult to predict acidity and alkalinity, so family pot planting is not recommended. According to the description of the cultivated soil purchased, decide whether to add base fertilizer or not. Aolu 501315318 and other slow-release fertilizers rich in trace elements such as calcium, magnesium, iron and zinc are usually used.

Question3: do I need to water and fertilize every day after planting? Where should I put it?

Answer: the geranium is more resistant to drought, is more afraid of stagnant water, does not need to be watered every day, and how often it is difficult to generalize. The general judgment method is: the weight of the flowerpot becomes obviously light, and the color of the cultivated soil is light, and probe into it with your fingers. Feel dry and granular and not sticky, indicating that the basin soil is relatively dry and can be watered properly. If not, there is no need for watering. The application of water-soluble fertilizer should be carried out when the temperature is cool and pleasant in spring and autumn, usually once or twice a week, depending on the description of the water-soluble fertilizer used. When the temperature is 5-30 degrees, try to put the small sky where there is plenty of light. Geraniums are light accumulators. At this temperature, the more light, the better. Below 0 degrees, higher than 35 degrees climate conditions, must take artificial protection measures, specifically: below 0 degrees, put in an indoor warm place, stop watering, as far as possible so that it can receive light through the glass indoors. Get through the cold winter. Higher than 35 degrees, the geranium has been unable to produce nutrients in normal photosynthesis, and even its own synthesis of chlorophyll will be hindered. It can be found that the leaves turn yellow, wither, and the new leaves appear white, which are all signs of excessive temperature. At this time, the seedlings are moved to indoor cool and ventilated places to reduce watering as much as possible. if possible, they can be put on the windowsill of the air-conditioned room to spend the summer safely.

Question 4: will geraniums get sick and grow worms? How can I prevent and treat it?

Answer: no plant will grow insects and diseases on its own. These are all caused by exogenous invasion. Like us, diseases and colds are caused by the environment. Geraniums have a special smell, which is disgusting to insects. Therefore, pests are not common, because they are afraid of waterlogging, too damp and stuffy environment, without ventilation and high air humidity, they are prone to bacteria and fungal diseases, mainly Botrytis cinerea. Mildew spot, black shank, soft rot and so on. Attention should be paid to the cleanliness of the cultivation environment, regular disinfection, keeping dry and ventilated, which can effectively prevent the occurrence of diseases. The cultivated soil of unknown source must be exposed to the sun for more than a day and fully disinfected and reused with disinfectant before use. For the diseased plants, the diseased leaves and stems should be removed as far as possible, and treated with bacterial fungus disinfectant and root irrigation, the effect is better.

Question 5: when will geraniums blossom? Why do I blossom rarely and not as much as in the picture?

A: unlike most plants, the flowering of geraniums is not limited by age, that is to say, only seedlings with long fingers may have the ability to blossom, and most geraniums bloom continuously, crop after crop, as long as the environment permits. You can see flowers all the year round. So what are the conditions for geraniums to bloom? Lighting: direct light for more than 4 hours, temperature: temperature between 10-30 degrees, nutrients: flowering is a very hard thing, if the lack of nutrients, Xiaotian may also strike out!

Although Xiaotian can blossom at a very young age, such seedlings should usually remove the buds and carry out heart-picking and pruning of the terminal buds, so that more lateral buds can germinate and make the plant type more robust and full. although after 2-3 times of removal of terminal buds and buds, the florescence will be delayed, but when it blossoms again, it will be full of brilliant pots, such labor and waiting is very worthwhile, in addition. When the flowers begin to wither, be sure to clean them in time to avoid wasting nutrients. Delay the development of new buds.