What to do when magnolia grows insects? disease and pest control of magnolia / 3 insect pests and 2 diseases

In the growth process of magnolia, the last thing we want to encounter is diseases and insect pests, this kind of problem is very harmful to the plant, and even lead to the phenomenon of plant death. So what if the magnolia grows worms? How to prevent and control diseases and insect pests of magnolia? Next, the editor will take you to learn about it.

First, magnolia worms how to do, to find the reason

If we want to know what to do when magnolia grows, we must first find out the reason and know what kind of insect is growing, so that we can deal with it pertinently, because the prevention and control methods of each kind of diseases and insect pests are different. Specific prevention and control methods are described in detail below, interested friends can learn about it.

2. Disease and pest control of magnolia (pest)

1. Red wax scale

This pest mainly feeds on the juice of magnolia, and its excrement often causes coal fouling disease, which makes the plant weak, tree-shaped haggard, rarely or unable to blossom at all.

Prevention and control methods: for this kind of magnolia diseases and insect pests, if the damage is not less, we can carry out artificial scraping. If there are more affected parts, we can use 1500 times of omethoate EC to spray the plant.

two。 Red spider

Red spider is a common pest in many plants, magnolia is no exception, when this pest appears on the plant, the leaves will gradually turn yellow and white, and if it does not come out for a long time, it will lead to the phenomenon of plant wilting.

Control method: when we deal with the diseases and insect pests of this magnolia, we can spray it with 2000 times of the wettable powder.

3. Longicorn beetle

Longicorn beetle is a great harmful pest. It mainly eats the leaves of Magnolia, which will gradually erode its leaves, causing the leaves to be dilapidated, very beautiful, and even lead to the phenomenon of magnolia wilting in serious cases.

Control method: for this kind of magnolia plant diseases and insect pests, we can use 20% chrysanthemum EC and 25% chrysanthemum mixture 2000 times to spray it, usually once every 5-7 days, 1-2 times can completely eliminate this pest.

3. Disease and pest control of magnolia flower (disease)

1. Anthrax

Anthracnose is a disease that may occur in many plants, and Magnolia is no exception. There are many round brown disease spots on the leaves of Magnolia, the size of which is 2-8mm, which will gradually spread over time, and finally lead to plant rot.

Control methods: in the prevention and control of diseases and insect pests of this magnolia, we can use 70% anthrax Fumei 600 times liquid to spray it, usually spray once every 7-10 days, and then recover after 3-4 times.

two。 Leaf spot disease

Leaf spot is a kind of disease caused by fungi, many irregular brown spots will appear on the leaves of the plant, and with the passage of time, the disease spot will gradually spread to the petiole and stem, and in serious cases, it will cause plant death.

Control methods: when we deal with the diseases and insect pests of this magnolia, we can use the 4% pyrimidine nucleoside antibiotic 20ml-41% polypyrimidine 20ml to spray the diseased plants with water, usually once every 5-7 days, and then recover after 2-3 times.

What to do with the growth of sea taro flowers? disease and pest control of sea taro flowers / 2 insect pests and 3 diseases

Diseases and insect pests can be said to be a problem that all plants are afraid of, and taro flowers are no exception, this kind of problem will not only affect its ornamental, but also lead to the phenomenon of plant death. So what should I do if the sea taro flowers grow into worms? How to control the diseases and insect pests of taro flowers? Next, the editor will take you to learn about it.

First, the sea taro flower grows worm how to do, look for the reason

If you want to know what to do with the sea taro flower worms, first of all, we have to understand what kind of insects grow, so that we can deal with them pertinently, because the treatment methods of each kind of diseases and insect pests are different, and the details are introduced below. Friends who are troubled in this respect can learn about it.

II. Pest control of sea taro flowers (pests)

1. Shell worm

Sea taro flowers prefer to grow in a warm and humid environment, and shell insects are easy to occur if the growth environment is too dry. It mainly threatens the branches, leaves and fruits of taro flowers, which will cause the leaves to turn yellow gradually, the tree potential will gradually decline, and finally the phenomenon of wilting will appear.

Control method: when we deal with the diseases and insect pests of this kind of taro, we can spray it directly with 1000 times of imidophos or 2.5 times of deltamethrin.

two。 Red spider

Red spider is a common pest in many plants, and taro flowers are no exception. When this pest occurs on the plant, the leaves will gradually turn yellow and white, and if it does not come out for a long time, it will lead to the phenomenon of plant wilting.

Control methods: when we deal with the diseases and insect pests of this kind of taro flower, we can avoid its reproduction by increasing the humidity of the environment. It can also be sprayed directly with 1000 times of 10% phenyledalin EC.

III. Disease and pest control of taro flowers (diseases)

1. White silk disease

White silk disease is a major threat to the leaves of sea taro flowers. In the initial stage, its leaves will be withered and yellow, the stems will become withered with the passage of time, and white whiskers will appear on the surface and roots of the soil. In serious cases, it will lead to the phenomenon of plant death.

Prevention and control methods: for this kind of sea taro flower diseases and insect pests, we can directly eat 50% topiramate 500-800 times liquid spray to use its medicine, generally once every 10 days, 2-3 times can be cured.

two。 Grey mold disease

Botrytis cinerea is a disease that may occur in many plants, and the sea taro flower is no exception. This disease mainly infects the leaves and flowers of the plant, and some watery brown spots appear on the leaves and flowers during the disease. and gradually turn into a black mildew layer over time.

Control method: when we deal with this kind of sea taro flower diseases and insect pests, we can use 1500 times of Nongliling wettable powder to spray the plant, usually once every 7-12 days, about 3 times can be cured.

3. Mosaic disease

Mosaic disease is a worldwide virus disease, which does great harm to sea taro flowers. At the initial stage of the disease, chlorotic angular disease spots appear on the leaves, and finally turn brown. In serious cases, it will also affect the yield and quality of cut flowers.

Control method: when we deal with the diseases and insect pests of this kind of sea taro, we can use 1000 times of dimethoate EC to spray the plant, usually once every 7-10 days, and then recover after 2-3 times.

What to do when the snow lotus grows insects? disease and pest control of snow lotus / 2 insect pests and 2 diseases

When we breed snow lotus, the last thing we want to encounter is the problem of diseases and insect pests, which do great harm to the plant, and it is easy to make the plant withered if it is not dealt with in time. So what should we do if the snow lotus grows worms? How does the pest control of snow lotus need to be done? Next, the editor will take you to learn about it.

First, what if the snow lotus grows worms? find the reason.

If you want to know what to do with snow lotus worms, we must first understand what kind of insects grow, so that we can deal with them pertinently, because the prevention and control methods of each kind of diseases and insect pests are different, and the details are described in detail below. Interested friends can learn about it.

II. Pest control of Saussurea involucrata (pest)

1. Small land tiger

The small land tiger is also called the soil silkworm, it is a kind of silkworm insect, the body surface is black, it is easy to appear in the humid environment, so we must pay special attention at this time, this pest mainly harms the seedlings of the snow lotus, it will gradually cause the young leaves of the seedlings, and finally lead to the nutrient loss of the snow lotus, thus withering to death.

Prevention and control methods: because the seedlings are relatively fragile, we must control them as soon as possible. to deal with this pest, we can choose 40% chrysanthemum EC 2000, 000, 000 times the solution to directly spray.

two。 Nocturnal moth

In the pest control of snow lotus, nocturnal moth is a relatively common pest, which mainly harms the leaves of snow lotus. It will gradually erode the leaves, affect the beauty of the plant, and even eat up the leaves of snow lotus in the later stage. So that the plant can not grow.

Prevention and control methods: the high incidence period of this pest is from August to September every year, and special attention must be paid during this period. 2.5% trichlorfon powder can be used to spray snow lotus flowers when controlling this pest.

3. Pest control of Saussurea involucrata (disease)

1. Black spot disease

Among the diseases and insect pests of Saussurea involucrata, black spot is one of the most common diseases of Saussurea involucrata. Many gray-brown spots will appear on the leaves when the disease occurs, and some very colored moldy objects will be produced on the disease spots, which will lead to the gradual death of Saussurea with the development of time.

Control method: in the prevention and control of this disease, 75% chlorothalonil 500 × 600 times can be used, the plant can be sprayed once every 10-15 days, and can be basically cured after 1-2 times.

two。 Powdery mildew

Among the diseases and insect pests of Saussurea involucrata, powdery mildew is a common disease. when this disease occurs, some powdery mildew layers appear on the leaves of Saussurea involucrata, which will gradually spread to the whole leaf, making it impossible for Saussurea to carry out photosynthesis. resulting in premature senescence and other phenomena.

Control method: in the prevention and control of this disease, we can use 80% sulfur 400 times plus 72% benzothiourea cyanide 600 times spray to spray the plant.