Suddenly laugh what to do, suddenly laugh at the control of diseases and insect pests / 3 insect pests and 1 disease

In the process of breeding and laughing suddenly, if there are diseases and insect pests, the harm to the plant is very great, this kind of problem will not only affect its ornamental, but also lead to the phenomenon of death. So what should I do if I suddenly laugh and grow a bug? What do you need to do to control the diseases and insect pests of sudden laughter? Next, the editor will take you to learn about it.

First, suddenly laugh long worm how to do, find the reason

If you want to know what to do when you laugh suddenly, we must first understand what kind of insect is growing, so that we can carry out targeted prevention and control of it, because the prevention and control 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.

Second, the prevention and control of diseases and insect pests (pests)

1. Spodoptera litura

Spodoptera litura is a crop pest of the genus Spodoptera (Lepidoptera: Spodoptera: Lepidoptera), which is generally brown, with many markings on its forewings and a broad gray-white twill in it. This pest mainly threatens the leaves, buds and fruits of laughter. It gradually eats the mesophyll and eats the scape, resulting in the gradual withering of the plant.

Prevention and control methods: it is a high incidence period between the end of spring and November every year, so we should pay special attention to it. In dealing with this disease and insect pest, we can directly spray it with 2500 times of 5% Regent suspension.

two。 Spodoptera litura

This pest mainly invades the plant in the larval stage and directly eats the inside of the bulb. generally, the affected area usually leaves a large number of green or brown dung grains, which can be used to determine whether it is a pest or not.

Prevention and control methods: for this kind of diseases and insect pests, we can combine with the turning over in early spring, we can dig out the overwintering pupae and reduce the number of insect population. At the same time, we can also directly use the 1500 times liquid of Lesbon or phoxim EC to spray and kill the disease and insect pests.

3. Thrips

Thrips are the general name of Thysanoptera of Insecta. They are relatively small in size, generally between 0.5-2mm in length, and rarely larger than 7mm in volume. This pest mainly harms the leaves of the bulbs of Xiaodi, it will gradually absorb the nutrients, resulting in the gradual loss of green leaves and the phenomenon of yellow and dry.

Control method: when dealing with this disease and insect pest, we can use 3000 times of imidacloprid and 60, 000 times of Emile for rotational spray control.

3. Disease and pest control of Xiaodi (disease)

Rot disease

Rot, also known as skin rot, is a common disease of laughing suddenly. This disease appears irregularly and may appear in every season. There are many small black spots on the trunk when the disease occurs, and it will gradually spread to the lower part of the tree over time, eventually causing the plant to rot gradually.

Prevention and control method: when dealing with this kind of diseases and insect pests, we can use a bottle of mother liquid to add 30 kg of water diluent, and then apply it on the plant, generally about 15 days once, 2-3 times can be cured.

What to do when the hundred-day chrysanthemum grows insects? pest control of the hundred-day chrysanthemum / 1 insect pest and 3 diseases

In the process of breeding hundred-day chrysanthemum, the last thing we want to encounter is diseases and insect pests, this kind of problem is very harmful to the plant, which will not only affect the ornamental, but also lead to the phenomenon of plant death. So what should I do when the hundred-day chrysanthemum grows worms? What do you need to do to prevent and control diseases and insect pests of zinnia? Next, the editor will take you to learn about it.

What if the hundred-day chrysanthemum grows worms? find the reason.

If you want to know what to do when a hundred-day chrysanthemum grows, we must first understand 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, and the details are described in detail below. Friends who are troubled in this respect can learn about it. Of course, you can also take a look at what you don't have. After all, you can take precautions against it.

Control of diseases and insect pests of hundred-day chrysanthemum

Aphids

Aphids are one of the most destructive pests on earth, which are harmful to many plants, and zinzhihua is one of them. The main damage of this pest is that adults and nymphs feed on leaves, stems, tender heads and tender panicle sap, resulting in a large loss of plant nutrients and wilting.

Control method: when we deal with the diseases and insect pests of this hundred-day chrysanthemum, we can use 2000-fold spray of imidacloprid wettable powder to spray it.

White star disease

White spot disease mainly threatens the leaves of hundred-day chrysanthemum. Many dark brown disease spots appear on the leaves at the onset of the disease, and then become dark brown around and gray-white in the center. This disease mostly occurs on the lower leaves, and in severe cases, the leaves will also appear the phenomenon of curling and drying.

Prevention and control methods: in view of the diseases and insect pests of this hundred-day chrysanthemum, we can use 75% chlorothalonil wettable powder 500-800 times to spray the diseased plants, usually once every half a month or so, and can be cured after 1-2 times.

Mosaic disease

Mosaic disease is a worldwide virus disease. During the onset of the disease, chlorotic horny spots will appear on the leaves of the hundred-day chrysanthemum, and the color will gradually turn brown with the passage of time, and at the same time, it will also lead to the problem of deformation and yellowing of the leaves. in serious cases, it will also affect the yield and quality of cut flowers.

Control methods: in view of the diseases and insect pests of this hundred-day chrysanthemum, we can use healthy seedlings, not to propagate separately from the diseased plants, or to spray insecticides to control the plants.

Black spot disease

Black spot, also known as brown spot, is a disease that may occur in many plants, and the hundred-day chrysanthemum is no exception. Its leaves, stems and flowers can all be harmed by this disease. This disease will lead to brown and dry leaves, shrinking petals and other symptoms. In serious cases, it can also lead to plant death.

Prevention and control methods: when dealing with the diseases and insect pests of this zinnia, we can use 5000 times of mancozeb or mancozeb spray to spray the disease, and pay special attention to spraying evenly on the back surface of the leaves when spraying.

What to do with the growth of forsythia? control of diseases and insect pests of Forsythia suspensa / 3 insect pests and 3 diseases

In the growth process of Forsythia suspensa, the last thing we want to encounter is diseases and insect pests, this kind of problem is very harmful to the plant, which will not only affect its ornamental, but also lead to the phenomenon of plant wilt. So what to do when forsythia has grown into worms? How to control the diseases and insect pests of Forsythia suspensa? Next, the editor will take you to learn about it.

First, how to do forsythia forsythia long worm, find the reason

If you want to know what to do with Forsythia suspensa 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 described in detail below. Friends who have trouble in this respect or not can all come to know about it. After all, it is a precaution.

II. Pest control of Forsythia suspensa (pest)

1. Liriomyza sinensis

Liriomyza huidobrensis this pest will gradually eat the leaf tissue of Forsythia suspensa, thus forming a serpentine white submersible channel, its excreta is black continuous linear production in the passageway, adults lay eggs and feed on round spots, and in serious cases, it will also lead to the phenomenon of plant death.

Control method: the high incidence period of this pest is from February to April every year, at this time we must pay more attention to it. When dealing with the diseases and insect pests of Forsythia suspensa, we can directly use 5000 times the solution of miramine wettable powder to spray and kill it.

two。 Spodoptera litura

Spodoptera litura is a kind of leaf-eating pest, its high incidence period is in the summer every year, so we must pay special attention at this time. This pest mainly feeds on the leaves of Forsythia suspensa, and even causes plant death in severe cases.

Control method: for this kind of forsythia plant diseases and insect pests, we can use 2.5% cypermethrin EC 2000-3000 times to spray it.

3. Slug

Slug, also known as Snotlout, is a mollusk that looks like a snail without a protective shell. It mainly threatens the leaves of Forsythia suspensa, which will gradually erode, resulting in a lot of wormholes in its leaves.

Prevention and control methods: when we deal with the diseases and insect pests of Forsythia suspensa, we can make use of its habit of climbing out and feeding activities after watering, after rain, early morning, evening, and cloudy days, and catch them manually with wire strings.

3. Pest control of Forsythia suspensa (disease)

1. Leaf spot disease

Leaf spot disease, through its name, we know that it is harmful to plant leaves, in the onset of Forsythia suspensa leaves will appear a lot of irregular disease spots, and with the passage of time, there will be small black spots, which will affect the ornamental.

Control methods: when we deal with the diseases and insect pests of Forsythia suspensa, we can use 50% carbendazim wet powder 500 times to spray the diseased plants, which is generally sprayed once every 7-10 days, and can be cured after 3-4 times.

two。 Rot disease

Rot, also known as skin rot, is a common disease of Forsythia suspensa. This disease appears irregularly and may appear in every season. There are many small black spots on the trunk when the disease occurs, and it will gradually spread to the lower part of the tree with the passage of time. Finally, the plant gradually rotted.

Prevention and control methods: when dealing with the diseases and insect pests of Forsythia suspensa, we can use a bottle of mother liquid to add 30 kg of water diluent, and then apply it on the plant, generally about 15 days once, 2-3 times can be cured.

3. Powdery mildew

Powdery mildew is a kind of disease with high incidence of Forsythia suspensa. This disease mainly threatens the leaves of plants. There will be many dust-like mildew spots on the leaves when the disease occurs, which will cause the leaves to turn green at the initial stage, and in serious cases, the whole leaves will be covered with powdery mildew layer. As a result, the plant can not carry out photosynthesis and gradually atrophy.

Control method: in the prevention and control of forsythia's diseases and insect pests, we can use 1000 times of methyl topiramate wettable powder to spray the plant, usually once every 10 days, about 2-3 times can be cured.