What about the bugs of tiger orchid? pest control of tiger skin orchid / 3 insect pests and 5 diseases

Tiger Pilan is a common plant in people's life, which has a great purification effect on people's home air and can effectively remove harmful substances in the air in the early Qing Dynasty, although Tiger Pilan is of great benefit to people's life. Its leaves are also the favorite habitat for all kinds of pests. About the tiger skin orchid long insect how to do, in fact, there are many treatment methods, tiger skin orchid pest control specific need how to carry out, the following editor to give everyone a popular science.

What about the tiger skin orchid worms?

If you want to know what to do with tiger skin orchid worms, you must first know what pests and diseases there are, and then of course it will be easier to deal with them. As the saying goes, it is necessary to prescribe the right medicine to the case. What are the specific diseases and insect pests of Tiger Pilan, and how to do pest prevention and control of Tiger Pilan? let's look down.

II. Prevention and control of diseases and insect pests of tiger skin orchid

1. Shell worm

Harm: usually suck juice on the leaves or stems of tiger orchid for a living.

Drug solution: when the shell of the nymph is not formed, spray with 1000 times of omethoate, 1500 times of malathion, 1000 times of imidophos, 1000 times of 50% dichlorvos, or 2.5% of deltamethrin 3000 times. Spray once every 7-10 days, 2-3 times in a row.

Manual solution: in the process of cultivating flowers, there are shell insects on a leaf, which can be cut off and burned in concentration, and do not throw it at random.

two。 Slug

Harm: feeding on leaves into holes, is a kind of harmful animals with complex feeding habits and large food intake.

Drug solution: 6% Mida molluscicidal granule 0.5kg~0.6kg or 3% Miaoling granule 1.5kg~3kg, mixed with dry fine soil 10kg~15kg, spread evenly around the plant.

Manual solution: put the slug's favorite food, such as young cabbage leaves, as bait in the place.

3. Mites

Harm: harm to the leaves of plants, prick and suck the stems and leaves of plants, and there are a large number of needle-sized yellowish-brown spots on the front of the early leaves. Sometimes it starts from the leaves in the middle of the plant, and the leaves turn yellow gradually.

Drug solution: when the above diseases are found, the ideal prevention and control effect can be achieved by using 1000-1500 times of diclofenac EC or 1.8% acarine EC 6000-8000 times.

4. Leaf spot disease

Symptoms: mainly occur in the leaves, leaf spots nearly round to oblong, light reddish brown, the edge of light yellow, slightly sunken, sometimes disease spot fusion. When cutting leaves with a single ring, the upper part of the disease spot is easy to die. In the later stage, the lesion often falls off into a perforation. The disease of leaves near the ground often causes local rot, and in serious cases, it causes stem base rot or whole plant inversion. It is easy to get sick in high temperature and rainy season.

Treatment: at the initial stage of the disease, Bordeaux solution, 53.8% can kill 2000 dry suspension 1000 times, spray 2-3 times, spray once every 5-7 days, one month effect can restore health.

5. Rot disease

Symptoms: occur on the leaves. The disease spot is water-stained spot in the initial stage; after expansion, the disease spot is from round to irregular, dark gray, soft rot, slightly sunken; in the later stage, the disease spot is dry and sunken, grayish brown, the edge is reddish brown, and black mildew spots appear under wet conditions.

Treatment: timely change of basin soil or soil mixed with pentachloronitrobenzene, soil can also be sprayed with soil fungicide; 50% carbendazim or 800 times thiophanate methyl solution can be sprayed at the initial stage of the disease.

6. Bacterial soft rot

Symptoms: after infection, the leaves changed from green to light yellow to grayish yellow, water-immersed soft rot appeared at the base of the stem near the ground, and the injured leaves were easy to reverse in the later stage. The rhizome is infected with disease, showing grass yellow soft rot, and the root is rotten and withered. The roots also died in the form of black rot when they were flooded. Especially in spring and summer, the weather of high temperature and heavy rain and typhoon rain is more serious.

Treatment: when the above symptoms are found, flower friends should be cut off and burned in time. At the initial stage of the disease, medical streptomycin sulfate 2000 times solution or 30% green suspension solution can be selected and sprayed every 5-7 days for 2-3 times prevention and treatment.

7. Anthrax

Symptoms: anthrax spot begins at the leaf tip or leaf edge, brown, the spot surface appears obvious or not obvious wheel lines, and the diseased leaves form small black spots scattered or arranged regularly. The pathogen is a subphylum fungus, called Alternaria alternata. The high temperature in the south is favorable for the disease under shady and humid conditions, especially from April to June.

Treatment: cut off the diseased leaves and withered leaves in winter and spring, increase the application of phosphorus and potassium fertilizer, spray 1000 times of 50% anthrax Fumi wettable powder in the early stage of the disease, or 1000 times of 75% chlorothalonil + 70% topjin wettable powder (1 ∶ 1).

8. Sunburn disease

Symptoms: indistinct wrinkle and withering in the susceptible leaves, water accumulation in severe wilting, necrosis in the diseased area, yellowing and decay until the plaque dries up.

Treatment: from June to October to shade properly. It is necessary to strengthen ventilation or divert water to cool down. Plant leaves should not be sprayed with water around noon, so it is not easy to harvest plants at high temperature. Reduce mechanical damage during harvest.

Phnom Penh tiger skin orchid worm how to do, Phnom Penh tiger skin orchid disease and pest control / drug spraying

Phnom Penh Tiger Pilan, heard the name to know that it is a kind of Tiger Pilan, its characteristic is that the edge of the leaf is golden yellow, looks very beautiful. However, the beauty of Phnom Penh Tiger Pilan needs everyone to take good care of. Once it gets sick, it will destroy all this. What about Phnom Penh Tiger Pilan? The following is the pest control of Tiger Pilan in Phnom Penh. Let's take a look at it with the editor.

First, Phnom Penh tiger skin orchid long worm, spray with medicine

As a common foliage plant, the breeding method of Phnom Penh tiger skin orchid is not difficult, but because there are many newcomers, many of them do not maintain in accordance with the requirements, resulting in the symptoms of long insect disease, seriously affecting the ornamental of the plant. As for Phnom Penh tiger skin orchid worms how to do? In fact, it is very simple, find specific pests, and then aim at spraying.

II. Disease and insect pest control of Phnom Penh tiger skin orchid

1. Scale insects

In the case of proper water and fertilizer, Phnom Penh tiger skin orchid grows very luxuriantly, which is good, but if the room is not ventilated, for a long time, the plant will be vulnerable to shell insects. Symptoms of damage, plant leaves lose luster, golden change is also very dim, in severe cases, the whole plant will die.

Control methods: first, move the plant to a ventilated place, and cut off the diseased leaves to reduce the source of insects; when there are many shell insects, it is necessary to spray 1000 times of omethoate or 1500 times of malathion for control.

2. Mites (red spiders)

In addition to shell insects, mites are also one of the diseases and insect pests of Phnom Penh, among which red spiders are the most common. Symptoms: yellow and white spots appeared in Phnom Penh tiger skin orchid leaves, then gradually turned red and extended to the whole leaf, even causing the leaves to curl, withered and yellow shedding.

Prevention and control methods: after the red spider is found, it should be sprayed immediately. The medicament can choose 1500-2000 times of trichloropropanol EC or 1.8% acaridin EC 6000 times, spray once every 7 days, 2-3 times, the effect is good.

3. Slugs

After excluding shell insects and red spiders, slugs are generally the only insects that invade Phnom Penh tiger skin orchid. The insect is a kind of pest with complex feeding habits and large food intake, which will eat the leaves of Phnom Penh into holes and seriously affect the ornamental ability of the plant.

Control method: after the slug is found, the young cabbage leaves can be used for artificial trapping, or 6% Mida molluscicidal granule 0.5kg~0.6kg, mixed with dry fine soil, can be evenly sprinkled around the plant, and soon the slug will run away.

4. Leaf spot

In addition to the long worm, in the case of improper maintenance, Phnom Penh tiger Pilan will also get sick, of which the most common is leaf spot disease. Disease symptoms: in the early stage, the leaves appear nearly round or oblong spots; in the later stage, the disease spots fall off and perforate, and the disease spots near the ground are easy to rot, resulting in stem base rot or whole plant inversion.

Prevention and control methods: in peacetime maintenance, watering should be reduced to reduce soil moisture; when the above diseases are found, Bordeaux solution, 53.8% can kill 2000 dry suspension 1000 times liquid to spray, spray 2-3 times in a row, spray once every 5-7 days, one month effect can restore health.

5. Anthrax

One of the common diseases of Phnom Penh tiger skin orchid mainly occurs under the conditions of high humidity and muggy environment, stagnant water in flowerpots, poor ventilation and so on. Symptoms: Phnom Penh tiger skin orchid leaves appear yellow-brown and sunken spots, and then expand called dark brown round spots, the leaf tip withered, and then the whole plant died.

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.

Generally speaking, Phnom Penh tiger skin orchid is not difficult to raise, just put it in a ventilated place, and be careful not to pour too much water, it is not easy to grow insects and get sick. Of course, do not be afraid to find diseases and insect pests in Phnom Penh. You can solve them according to the above prevention and control methods. On the prevention and control of diseases and insect pests in Phnom Penh Tiger Pilan, the editor has introduced this, hoping to bring help to everyone.

New to the conservation of succulent plants-fertilization, temperature, reproduction, and pest control fertilization winter-type and intermediate plants are applied mature dilute liquid fertilizer or compound fertilizer every 20 days or so. Fertilizing time can be in the morning when the weather is clear, and be careful not to spill the fertilizer on the plant. Summer type species do not need to be fertilized. The temperature of 15: 28 is the most suitable, and the temperature of 5: 35 is the plant tolerance limit. After rooting, the reproductive leaves have to wait until the leaves have withered, and the buds grow up before moving. Wait until the seedlings grow to two or three cm, use large pots when inserting leaves, do not spray, water the soil when it is dry, and do not pour it on them. It is suitable to be beheaded in the middle of April every year, leaving three or four leaves below, and then leave them to dry for five days before cutting. Many succulent plants can be propagated by cutting branches from stems with a sharp knife, and any tool used to cut plants must be sterilized with alcohol in advance. The best cutting site, such as the stem is jointed under the node, or below the petiole or the base of the new bud on the stem. Pay attention to the use of cutting branches, do not destroy the beauty of the mother plant shape, it is best to pick branches from more than one stem node. The cuttings are planted in a sandy medium sterilized at high temperature, which can be pure sand, coarse sand or vermiculite. Sometimes the cuttings can be cut off and planted directly, or they can be hung for a day or two to heal the wound tissue and avoid fungal infection. Many succulent plants need only one leaf to get a new plant by cutting. Such as Rhodiola, Euphorbia, Cymbidium and many epiphytic cacti. Shark palms can sometimes reproduce by inserting leaves. Leave the leaves to dry for a few days, close the wound and produce healing tissue, and then put the leaves into the propagation basin, so that the base of the leaves only come into contact with the cultivation substrate, which feels better than inserting the lower part of the leaves into the substrate and is not easy to rot. After a period of time, new roots can be observed, and then new buds and new leaves will appear. Cuttings are best carried out at the beginning of the growing season, usually in spring, except for winter plants. Place the cuttings in a well-ventilated, brightly lit place with a room temperature of 20 ℃, but away from the sun. It is also a good idea to put the cuttings in a closed environment where proper humidity can be maintained until they take root. The easy way is to put a large polyethylene plastic bag on a large flowerpot or cut the upper part of a clean transparent plastic bottle and buckle it upside down on a flowerpot of the same size. It is better to water the cuttings less than more, and then increase the amount of water until obvious growth can be observed. Ramet propagation: many succulent plants are tufted or have thick tuberous roots, which can be propagated by ramet. After taking out the plant from the pot, remove the basin soil as far as possible, and the specific method of ramet operation depends on the growth type of the plant. For example, the multi-headed varieties of Rumoraceae, crassulaceae and Cactaceae can be divided into plants when they are poured out, and the young plants that grow well and have taken root independently can be separated and put on the pot alone. Lateral bud propagation: many cacti and succulent plants produce lateral buds or bulbs on the base of adult plants, which are usually easily picked or cut off, dried and placed in pots for a few days. This is also good for the mother plant, and these lateral buds or bulbs consume a lot of nutrients. Some plants will sprout tillering buds on the edge of leaves and scape, and they can also be plucked and cultivated. Pest control 1. Red spiders mainly harm succulent plants of Asclepiaceae, Euphorbiaceae, Compositae and Liliaceae. Suck the juice of young stems and leaves with mouthparts, and the injured leaves show yellowish-brown stains or withered yellow and fall off. This scar never fades. Generally speaking, you can see if there are cobwebs on the back of the leaves, and there are very small red / white / dark worms. If there is, it's usually a red spider. Prevention and control measures can be used to increase environmental humidity, reduce and avoid spread, can be killed by 1000-1500 times of dicofol, or avermectin. The red spider removal method manually removes the red spider, which has the advantages of low cost, convenient sampling and excellent effect. Materials: a toothpick, a small amount of double-sided glue. Methods: cut the double-sided glue into small pieces of 0.5-1CM square and put it flat on the table; take a toothpick, press one end on the glue surface to fix it, and then gently rub the toothpick in one direction to wrap the double-sided glue on one end of the toothpick; in this way, a simple miniature "dust roller" is made. Put the plant with red spider disease in bright light (because the pest is too small, the light is not good enough to see clearly), and then use the "dust roller" to roll on the sphere, the red spider is absolutely difficult to escape, because the "dust roller" is very small, it can be flexible to shuttle between edges and thorns, so that the red spider has no place to hide. When a "dust roller" is full of pests, you can have a rest and then make a new one. This method is suitable for the initial stage of the disease, when the sphere is not damaged in a large area, and the effect is good. two。 Scale insects are harmful to a wide range of succulent plants such as tequila and Twelve genera with compact leaves, sucking sap from stems and leaves, resulting in poor growth of plants, and in serious cases, wilting and death. Its high incidence period is earlier than that of red spiders and often multiplies in large numbers in early spring. But its harm is also easy to control, that is, it is often concentrated on a small number of plants, sometimes one plant is covered with scale insects, but the neighboring one has none. Prevention and control measures: when the quantity is small, it can be removed with a brush. In addition, it can also be used to kill 800 murmurs with double liquid spray. Mixed with a certain amount of carbofuran in the culture soil has a preventive effect, but the effect is only 3 months. 3. The harm of whitefly is small, and it often occurs in Caiyun Pavilion, Tiger prickly Plum, Jade Kirin, Dijin and other shrubby succulent plants of Euphorbiaceae, which absorb juice on the back of leaves, causing leaves to yellowing, falling off, and inducing coal pollution at the same time. There will be a large piece of ugly black powder on the stems and leaves, which will directly affect the ornamental value of the plant. Prevention and control measures: in addition to improving environmental ventilation, 40% omethoate EC can be sprayed at the initial stage with 1000-2000 times liquid, and can also be sprayed with marathon 500 times liquid or dimethoate mixed dichlorvos 1000 times liquid. After spraying for 2 days, the dead insects together with black powder can be washed away with strong water flow. Rot treatment is a common disease of succulent plants, which is usually caused by fungal infection caused by too much watering or too moist culture environment. Some insects, such as pink scale, can also cause rot, especially the root pink scale. The wounds caused by these pests when they feed on plant juices can cause fungal infections. Decay takes many forms, and it's often too late by the time you find it. Always watch out for faded areas of plants, as well as softened, mushy stems and leaves. Once there is a place on the succulent plant that fades and softens and the hair is rotten, it should be cut off immediately, knives and hands should be sterilized before and after to avoid infecting other plants, and fungicides should be used to spray the plant in case of fungal infection. the wound must be completely dry before it can be buried. There are many kinds of decay, which are briefly introduced as follows: Crown decay: internal decay of the plant, causing the plant to fall; stem rot (mainly Euphorbiaceae): stem rot, usually at the bottom of the stem; stem spot rot: caused by Orange stink bugs; fungal rot: brown, watery stains on the plant Apricot rot: occurs in branch black rot: often occurs after cotton aphid or root powder infection. Treatments for rotten succulent plants be sure to keep the utensils clean and sterile when handling rotten plants and wash your hands carefully before touching other plants. Crown decay: cut off the infected part with a sharp knife and then insert charcoal and sulfur into the wound. The wound should be completely dry. Neck rot: cut off the rotten part and treat the rest as a branch. Remember not to bury the wound until it is completely dry. Fungal rot: cut off the damaged parts with a clean knife and cover them with sulfur. The plants were sprayed with a mixture of benzoate and mancozeb. Black rot: cut off the infected part with a clean knife, spray it with benzoate and cover it with sulfur. Those who do not have the above-mentioned drugs can make do with some commonly used disinfection and sterilization drugs. The most important thing is to remove the rotten part, then put the plant in a ventilated place and wait for the wound to dry and heal. as long as it is removed, it will generally survive with the tenacious personality of succulent plants, with the exception of some varieties that are difficult to cultivate.