What to do when the green orchid grows, the pest control of the green orchid / 2 insects and 3 diseases

As a kind of ornamental and drug-taking plant, green orchid is kept at home by many flower friends. However, there are many people and novices, and many of them are not raised in accordance with the breeding methods of green orchids, which often make the plant worms sick, thus affecting the ornamental quality. What about the green turnip orchid worm? Next, let's go with the editor to take a look at the pest control of green orchid.

First, the green orchid growing worm, looking for medicine to spray

Generally speaking, the green orchid has strong adaptability and less occurrence of diseases and insect pests, but when it is poorly grown or poorly cared for, it will also be disturbed by diseases and insect pests. As for the green orchid long worm how to do, in fact, it is very simple, determine the pest, and then spray with medicine. The following are four common diseases and insect pests of green orchid, let's take a look at the prevention and control methods.

2. Disease and pest control of green orchid

1. Aphids

Green orchid is one of the main insect pests, it mainly harms leaves and buds, absorbs a lot of juice, resulting in poor plant growth. Because aphids multiply, they are usually found densely packed, not only frightening, but also very disgusting.

Control method: a small number of aphids can be removed by rinsing with plant ash on the leaf surface; when there are many aphids, spray 1000 times of omethoate EC or 1000 times of fenitrothion EC to control aphids, the effect is good.

2. Scale insects

Once the green orchid worm is found, we can consider it to be a scale insect. The insect is easy to break out in a poorly ventilated environment, and it will attach to the leaves and make them lose their luster. Symptoms of damage: the leaves of green orchid turn yellow, and the plant will die in severe cases.

Control methods: if there are few scale insects, you can wipe off the live insects with 75% spraying essence of cotton, or wipe off the insects with laundry powder; for a long time, spray 1000-15000 times of dichlorvos or 1000 times of 50% marathon emulsion for control.

3. Root rot

In the process of breeding, green orchid often suffers from root rot, which mainly harms the roots of green orchid. Symptoms: root rot, leaves withered and yellow, until death.

Prevention and treatment methods: when the above diseases are found, 50% carbendazim wettable powder can be sprayed 500 times, or it can be irrigated directly; when the disease is serious, pull out the green orchid, remove its rotten roots, and change the soil and basin to plant again.

4. Anthrax

Anthracnose is also a disease easily caused by breeding green orchid, which mainly harms leaves. Symptoms: the diseased leaves will appear at the beginning of a number of light yellow, dark brown or light gray areas, there are many black spots, with the passage of time, it will be infected to the stems and branches, seriously affecting the growth of the plant.

Prevention and treatment: cut off the diseased leaves and burn them centrally to reduce the source of the disease; in severe cases, spray 1000 times of carbendazim or 1000 times of methyl topiramate for antiseptic, which can be effective after 2-3 times.

5. Leaf spot

When the indoor temperature fluctuates greatly in the short term, or too much watering during the dormant period, the green orchid is easy to suffer from leaf spot disease. Symptoms: in the early stages of the disease, there will be many small brown spots on the leaves, and in severe cases, the spots will spread throughout the leaves.

Prevention and control methods: timely removal of diseased leaves and centralized destruction, in order to reduce the source of the disease; spray 65% Dysen zinc 500 times or 25% nitrilazol EC 800 times to prevent and cure the disease, spraying twice every 10 to 15 days can be effective.

What if Phnom Penh Cymbidium grows insects? disease and pest control of Phnom Penh Cymbidium / 3 insects and 2 diseases

As a kind of hanging orchid, Phnom Penh has inherited many advantages of its ancestors. It not only has strong adaptability and good growth, but also can absorb formaldehyde, which is the reason why flower friends keep it at home. However, in indoor farming, the plant inevitably grows sick for a variety of reasons. So, what should we do if Phnom Penh hanging orchids grow worms? The following is the pest control of several kinds of Phnom Penh orchids, follow the editor to have a look.

First, Phnom Penh hanging orchid long worm, spray with medicine

Although Phnom Penh orchids are not prone to diseases and insect pests, if they are not maintained according to the cultivation methods of Phnom Penh orchids, once there is stagnant water in the basin soil and poor ventilation, they will also suffer diseases and insect pests. As for the Phnom Penh hanging orchid worm how to do, in fact, it is very simple, indeed insect pests, and then aimed at spraying can be solved. The specific symptom is the method of prevention and treatment, and let's move on.

II. Pest control of Phnom Penh Cymbidium

1. Aphids

When it comes to Phnom Penh orchid worms, more than 80% are long aphids, which mainly harm leaves and buds, absorb a lot of juice, and lead to poor plant growth. Because aphids multiply, they are usually found densely packed, not only frightening, but also very disgusting.

Control method: find a small number of aphids, can take artificial control aphids, brush aphids with brush, buried in the basin soil. Aphids for a long time, the use of 40% of the concentration of imidophos diluted into 1000 times solution spray generally 7-10 days, continuous spraying 2-3 times can relieve the harm.

Other control methods: ① use 50 grams of fresh chili or dry red wine pepper, add 30 to 50 grams of water, boil for about half an hour, spray the parts attacked by aphids with its filtrate; ② washing powder 3-4 grams, add 100g water, stir into a solution, spray 2 to 3 times in a row, the control effect of aphids is excellent.

2. Scale insects

In the case of dense plant clusters and poor ventilation, Phnom Penh is vulnerable to scale insects, which will adsorb on the leaves and make the leaves lose their luster. Symptoms of damage: the leaf tip of Phnom Penh Cymbidium is dry, and the plant will die in severe cases.

Control method: first move the plant to a ventilated place, and then observe the disease. If there are few scale insects, you can wipe off the insects with laundry powder; when the disease and insect pests are long, you can spray with 1000 times the concentration of omethoate. You can also use 50% malathion diluted into 1500 solution for spray control.

3. Red spider

In addition to aphids and shell insects, red spider is also one of the diseases and insect pests of Phnom Penh, which mainly harms the leaves of the plant. After being attacked by red spiders, the diseased leaves of Phnom Penh showed small yellow and white spots at the initial stage, gradually turned red and extended to the whole leaf, and even caused the leaves to curl, wither and fall off.

Control methods: after the discovery of red spiders, 1500-2000 times trichloropropanol EC can be sprayed every 7 days, 2-3 times, and the effect is good.

4. Root rot

In the process of breeding, because of the stagnant water in the basin soil and poor ventilation, it will cause the roots of Phnom Penh to rot, thus causing the plant to suffer from root rot. Symptoms: root rot, leaves withered and yellow, until death.

Prevention and treatment methods: when the above symptoms are found, 50% carbendazim wettable powder can be sprayed 500 times, or it can be irrigated directly once a week; when the disease is serious, pull out Phnom Penh, remove its rotten roots, change soil and basin and replant.

5. Anthrax

One of the common diseases of Phnom Penh orchid mainly occurs under the conditions of high humidity and stifling heat, stagnant water in flowerpots, overdense plant clusters, poor ventilation and so on. Symptoms: the diseased leaves appear yellowish-brown and sunken spots, then expand called dark brown round spots, the leaf tip withered, and then the whole plant dies.

Prevention and treatment: cut off the diseased leaves and burn them centrally to reduce the source of the disease; in severe cases, spray 1000 times of carbendazim or 1000 times of methyl topiramate for antiseptic, which can be effective after 2-3 times.

What to do with the growth of peony orchid insects? pest control of peony orchid / 3 insects and 2 diseases

As a common indoor potted plant, the efficacy of peony orchid is very strong, it is not only good-looking, but also not vulnerable to diseases and insect pests, but also has good value in edible. But in indoor farming, for some reasons, peony orchid will inevitably be infected with disease and be disturbed by insects. So, what should I do if the peony orchid grows worms? Here are five kinds of peony pest control, let's go and have a look!

First, peony hanging orchid long worm, spray with medicine

The breeding method of peony orchid is not difficult, only need to pay a little attention to water and fertilizer, and give it enough light, it can grow very well. But in the breeding process, because of the basin soil stagnant water, poor ventilation and other conditions, it will suffer diseases and insect pests. As for the peony hanging orchid worm how to do, in fact, it is very simple, indeed insect pests, and then aimed at spraying can be solved.

II. Disease and pest control of peony orchid

1. Aphids

Indoor potted plant is the most common pest, which also endangers the health of peony orchid. The insect mainly harms leaves and buds and absorbs a lot of juice, resulting in poor plant growth. Because aphids multiply, they are usually found densely packed, not only frightening, but also very disgusting.

Prevention and control methods: if the number of aphids is very small, you can take artificial aphid control, brush off the aphids with a brush and bury them in the basin soil; if there are many aphids, you need to spray related agents, such as 1000 times of omethoate or 1000 times of dichlorvos, sprayed once every 10 days and sprayed for 3 times in a row.

2. Scale insects

In addition to aphids, in the case of dense plants and poor ventilation, peony orchids are also vulnerable to scale insects. The insect will attach to the leaves and make the leaves lose their luster, resulting in the yellowing of peony orchid leaves, and in severe cases, the whole plant will die.

Control method: move the plant to a ventilated place, cut off the diseased leaves to reduce the source of insects; then spray 40% omethoate diluted into 1000 times solution or 50% malathion diluted into 1500 solution for control.

3. Red spider

In addition, the red spider is also one of the peony hanging orchid diseases and insect pests, although it is very rare, but once the occurrence of great harm. It is understood that the insect mainly harms the leaves of the plant, causing small yellow and white spots on the leaves of the peony orchid, then gradually turning red and extending to the whole leaf, even causing the leaves to curl, wither and fall off.

Control methods: after the discovery of red spiders, 1500-2000 times trichloropropanol EC can be sprayed every 7 days, 2-3 times, and the effect is good.

4. Root rot

When it comes to peony orchid diseases and insect pests, the most common is root rot, which is mainly caused by stagnant water in basin soil and poor ventilation. Symptoms: root rot, leaves withered and yellow, until death.

Prevention and treatment methods: when the above diseases are found, 50% carbendazim wettable powder can be sprayed 500 times, or it can be irrigated directly once a week; when the disease is serious, pull out the peony orchid, remove its rotten roots, and change the soil and basin to replant.

5. Leaf blight

Under the conditions of high ambient temperature, high humidity and poor ventilation, peony orchid will also suffer from leaf blight. Disease symptoms: peony hanging orchid leaves first turn yellow, and then become brown disease spots, and finally spread to the whole plant.

Prevention and treatment method: when the above symptoms are found, 70% of the concentration of Dysen zinc is diluted into 600 times solution to spray for prevention and treatment, once every 15-20 days, 2-3 this can be effective.

Generally speaking, in the process of cultivating peony orchids, as long as we put it in a ventilated place and be careful not to pour too much water, it will not suffer from diseases and insect pests. Of course, do not be afraid to find that the peony orchid worm is sick, just solve it according to the above prevention and control methods. With regard to the pest control of peony hanging orchid, the editor has introduced this, hoping to bring help to everyone.