What should we do if the Phoenix tree grows insects? pest control of Phoenix wood / 2 insect pests 2 diseases

When we cultivate Phoenix wood, 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 withering and death. What about the Phoenix wood worm? What does the pest control of Phoenix wood need to do? Next, the editor will take you to learn about it.

First, what if the Phoenix tree grows worms? find the reason.

If you want to know what to do with the Phoenix wood worms, first of all, we need to understand what kind of insects are growing, so that we can deal with them pertinently, because the treatment methods of different diseases and insect pests are also different, and the details are described in detail below. Friends who are troubled in this respect can learn about it.

II. Pest control of Fenghuang wood (pest)

1. Nocturnal moth

Nocturnal moth is a plant-eating pest of Lepidoptera. It mainly harms the leaves of Phoenix wood. Its larvae will eat plant leaves and often eat up the host leaves, which seriously affect the growth and ornamental of trees.

Control methods: the main damage period of nocturnal moth is from July to September every year, so we must pay special attention to this disease and insect pest of Phoenix wood. We can directly use 2.5% trichlorfon powder to spray and kill it.

two。 Shell worm

Phoenix wood prefers to grow in a warm and humid environment, and it is easy to suffer from shell insects if the growth environment is too dry. It mainly threatens the branches, leaves and fruits of Phoenix wood, which will cause the leaves to turn yellow gradually, the tree potential will gradually decline, and finally wither.

Control method: when we deal with the diseases and insect pests of this Phoenix wood, we can directly spray it with 1000 times of imidophos or 2.5% of deltamethrin 3000 times.

III. Pest control of Phoenix wood (disease)

1. Leaf spot disease

Leaf spot is a disease in many plants, and Phoenix wood is no exception. Many oval and long brown spots will appear on its leaves, which will spread gradually with the passage of time, and finally lead to the gradual death of the plant.

Control method: when we deal with the diseases and insect pests of this Phoenix wood, we can use 1000 times of silazolamine to spray the diseased plants, usually once every 5-7 days, and then recover after 2-3 times.

two。 Anthrax

Anthracnose this disease mainly occurs in the leaves of Phoenix wood, in the initial stage of the disease, there will be many watery yellow spots on the leaves, and then oval to irregular brown or yellowish brown spots will be expanded. in the later stage, the disease spots will cause the leaves to dry up and produce small black spots arranged in wheel patterns.

Prevention and control methods: the emergence of this disease is mainly due to poor ventilation in the maintenance environment, so we must maintain environmental ventilation when breeding. As for the treatment of this disease, we can use 1500 times of topiramate to spray the disease, usually once a week, 3-4 times can be cured.

What to do when Hypericum grows worms? pest control of Hypericum L. / 2 insect pests and 2 diseases

When we cultivate hypericum, 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 value, but also lead to its death. What do you need to do to control diseases and insect pests in Hypericum? Next, the editor will take you to learn about it.

First, how to do the hypericum worms? find the reason.

If you want to know what to do with the long worm of hypericum, we must first understand what kind of insect is growing, so that we can deal with it 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. Disease and pest control of hypericum (pest)

1. Red spider

Red spider is a common pest in many plants, and hypericum 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 methods: when we deal with the diseases and insect pests of this kind of hypericum, 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.

two。 Nocturnal moth

Nocturnal moth is a plant-eating pest of Lepidoptera. It mainly harms the leaves of Hypericum. Its larvae will eat plant leaves and often eat up the host leaves, which seriously affect the growth and ornamental of trees.

Control methods: the main damage period of night moth is from July to September every year, so we must pay special attention at this time. For this kind of hypericum, we can directly use 2.5% trichlorfon powder to spray and kill it.

III. Pest control of Hypericum (diseases)

1. Powdery mildew

Powdery mildew is a disease with a high incidence of hypericum. This disease mainly threatens the leaves of plants. There will be many dust-like mildew spots on the leaves during the disease, which will cause the leaves to turn green at the initial stage, and in severe cases, the whole leaves will be covered with powdery mildew layer. As a result, the plant is unable to carry out photosynthesis and gradually atrophied.

Control methods: in the prevention and control of diseases and insect pests of this kind of hypericum, we can use more than 1000 to 1500 times of antimycin to spray the plant, usually once every 10 days, about 2-3 times can be cured.

two。 Brown spot disease

Brown spot, also known as Rhizoctonia solani, is a fungal disease caused by Rhizoctonia solani. During the disease, many yellow-brown to light brown spots with a diameter of 0.1-0.5cm will appear on the leaves, and the disease spots will spread gradually with the passage of time, resulting in the phenomenon of plant death.

Prevention and control methods: when we find the diseases and insect pests of this kind of hypericum, if the number of diseased leaves is relatively small, we can remove and destroy them in time. If there are more, we will use 2000 times of Sukeling liquid to treat them. Generally, the diseased plants are sprayed once a week and can be cured about 3 times.

What to do with the growth of Chrysanthemum morifolium? pest control of Chrysanthemum morifolium / 2 insect pests 2 diseases

When we raise 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 cause the plant to die. What should we do if the chrysanthemum grows? How to control the diseases and insect pests of Chrysanthemum morifolium? Next, the editor will take you to learn about it.

First, what to do when the chrysanthemum grows? find the reason.

If you want to know what to do when the chrysanthemum grows, we must first understand what kind of worm it grows, so that we can deal with it 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 are troubled in this respect can learn about it.

2. pest control of Chrysanthemum morifolium

1. Aphids

Among the diseases and insect pests of Chrysanthemum morifolium, aphids are one of the most harmful, which mainly harms the leaves, stems, tender heads and ears of Chrysanthemum morifolium. It will gradually absorb the juice, resulting in a large amount of nutrient loss and gradually withered phenomenon.

Prevention and control methods: for aphids, this kind of chrysanthemum diseases and insect pests, if the number is small, we can carry out manual hunting, see one pinch one. If the quantity is large, we can use 40% imidacloprid water solvent 1500 × 2000 times to spray.

two。 Beetle

Beetle is a kind of invertebrate, which mainly harms the root system, leaves and buds of Chrysanthemum morifolium, which affects the yield and quality of flowering, and even causes the plant not to blossom.

Control method: when we deal with the diseases and insect pests of this kind of chrysanthemum, we can spray it with 2.5% deltamethrin 2000-3000 times, or trap it under light.

3. Rust disease

Rust is one of the most common diseases and insect pests of Chrysanthemum morifolium. This disease mainly threatens the leaves, stems and fruits of plants. When the disease occurs, there will be many blister spots in the affected parts, and when they are serious, the blister spots will be dense and the plants will die quickly.

Prevention and control method: when rust occurs on chrysanthemum, we can spray it with 2000 times of WP, which is usually sprayed once every 7-10 days, and can be cured once or twice.

4. Black spot disease

Black spot is a kind of disease caused by fungi. many black spots will appear on the leaves of Chrysanthemum morifolium, and the spots will spread gradually with the passage of time, resulting in the gradual death of the plant.

Control method: when preventing and controlling the diseases and insect pests of this kind of chrysanthemum, we can use 7% topiramate 800 times liquid to spray it, usually spray once every 7-10 days, and then recover after 2-3 times.