Let me take you to know our common pests, see what their names are, and how to judge whether there are pests by the symptoms of plants, so that we can choose the appropriate drug treatment.
Slugs: Generally nocturnal, the active area has obvious traces of mucus adhesion, mainly harmful to the leaves. Can be killed with tetraacetaldehyde
If you want to control pests, you must start from the classification of pests, so that after classification, you can know how to control similar pests when you see them. Our common pests belong to the three mollusk phylums, the link animal phylum, and the arthropod phylum of the animal kingdom [Note (1)]. Among them, the mollusk phylum is the gastropod snail and slug (kuò yú). Belonging to the phylum of the link animals are the ringed earthworms. Most of our common pests belong to the arthropod phylum, such as crustaceans and other foot orders of rat women; the centipede of the multipod centipede, commonly known in the north as the money string; and the red spider of the order arachnid tick mphin (pí mǎn). Insects are also the most common pests, including locusts, crickets, and slugs (lóu gū of the order Pterophora; thistle (jì) horses of the order Taemona; chūn xiàng; aphids, aphids, shellworms, greenhouse whitefly, citrus lice, etc. of the order Elytraptera; scarab beetles, celestial cows, giddings, etc., whose larvae harm the underground rhizomes of plants or parasitize and nibble on internal tissues in the stems of plants; various moths, butterflies, etc. of lepidoptera. Their larvae harm the leaves on the leaves or sneak inside the leaf tissue; various leaf peaks, stem bees, ants, etc. of the order Hymenoptera; their larvae such as diptera leafminer flies and seed flies harm the mesophyll tissue in the leaves of the plant or the roots of the seedlings underground.
Earthworm, some people may say that it is a pest? It is beneficial to the earth, but in pots it affects the growth of the root system of the plant.
Rat women, commonly known as tide worms, feed on organic matter in the soil, and although they do not endanger plant growth, it is also annoying to run around under the pots.
The pleistocer's yóu yán, commonly known in the north as the money string, also lives in damp and dark places, generally at the bottom of the pot.
After the above enumeration, it is not found that many pests are the same purpose, so that they have many related living habits, and they can be comprehensively eliminated through their common points in prevention and control. Let me tell you what kind of mouth they eat with, saying that the mouth is actually not accurate, because some pests really do not have the mouth as an organ, and the part they call feeding is called the mouth organ. When the mouthparts [Note (2)] type are finished, there is a way to prevent them.
At home, try not to use pesticides to control, which is the larvae of the seven-star ladybird, feeding on aphids, which are natural enemies of pests, and spraying will also kill them.
Chewable mouthpiece: This mouthpiece is a bit similar to the way we eat when eating, but the specific operation is more complicated, so I will not introduce it here. They eat a lot of food, and when they harm the leaves, they can eat the leaves of one plant in a short period of time and then migrate to another plant to eat. Common pests are various moths, butterflies, scarab beetle larvae, leaf peak larvae, locusts, beetles and so on. There are also celestial cattle and gidding insects that harm the inside of the stem of the plant, and the larvae of the lunar stem bee. Some can also sneak into the leaf epidermis to eat leaf flesh or dive under the epidermis of fruit trees to harm the epidermis of fruit trees, commonly have South American spotted diving flies, tomato spotted flying flies, chrysanthemum leafminer moths and other pests that harm the leaves, pear submerged moths, citrus submersible moths and other pests that harm the epidermis under the trunk epidermis. There are also various leaf curls that roll up their leaves with spider silk, such as the tea leaf moth and the brown-banded leaf moth. This kind of body size is relatively large, so it is easy to find, such as the discovery of leaf-eating pests can be artificially removed from the affected leaves, catch the insect body and so on. Leafminers and leaf curlers are also easy to find on the leaves and can be pruned off the diseased leaves. If the flower pest is thin and weak, if it is relatively thick, it can be inserted with a wire from the excretion of the pest on the branch until it is inserted, and the insecticide can also be injected into the affected branch.
The larvae of the stinging moth are not sugar treasures, commonly known in the north as foreign spicy seeds, chewing mouth organs, villi stained on the skin on the redness and itching, do not scratch it with your hands.
Aspiration mouthparts: This mouthpiece can penetrate the tissues of animals and plants to suck blood and juice. Our common aphids, whiteflies, ticks, bugs, red spiders, leafhoppers, etc. are all such mouth organs. Most of the pests of the stinging mouthpiece can also spread diseases, just like the previously mentioned viral diseases are transmitted by whiteflies, aphids, etc. To kill this pest to choose a drug with systemic suction, ordinary agents are no way to kill them all, after all, the juice they suck is below the leaf epidermis, ordinary insecticides are only adhered to the surface of the plant, if the insect body is more, it will increase the function of egg killing.
Aphids, stinging mouthparts, generally live on the back of the leaves, sucking the juice inside the leaves. It is difficult to find when the number is small, and it is generally very large by the time of the outbreak, mainly to prevent it
Filing suction mouthpiece: This mouthpiece is unique to thrips. Feeding is done by using the left upper jaw (è) to break the epidermis of the plant, and then using its short beak (huì) to suck (shǔn) juice.
Thrips, which feed on the flowers of the files sucking plants, are small and difficult to detect without careful observation.
Siphon mouthparts: This mouthpiece is the mouth organ of adult moths and butterflies. By this time, moths and butterflies no longer harm the plant, they only suck nectar or exposed juices and other juices. However, their larvae do harm the plant's pests, and if they cannot be driven away or caught, they can be booby-trapped with venom or semi-fluid bait made of gastric poison [note (3)] insecticides.
Butterfly, very beautiful! Its larvae are caterpillars.
Having said all that, what do these pests look like? Let's take a look at them in combination with pictures.
Leaf-eating pests are the most numerous and the most complex family, so let's see what they look like.
Acetollus, a shield worm, adheres to the back of the leaf.
Whiteflies, as the insect body grows, carries the skin under the insect body to the back of the insect body, looks hairy, and the touch insecticide is difficult to work.
Japanese turtle wax bug, there are more bonsai, anyway, I know it is seen on the bonsai tree.
This is the picture of my pest tree, if you don't look closely, I think the plant is sick, in fact, it is the insect body of the insect shell insect, is it similar to the shield worm in front
The moon tick can't see exactly what kind of bug, that is, it can still survive on the branches.
The finch moth is an adult, most moths and butterflies grow like this, and their larvae are basically pests.
The larvae of the finch moth, the insect body is very large, generally acting alone, eating a large amount. I've seen it on grapes.
The larvae of the American white moth belong to the biological invasion insect pest, so when you play abroad, do not bring plant products that have not been inspected and quarantined into the country.
The larvae of the twill moth should be a relatively common pest, at least I have found it in my vegetable garden.
The larvae of the brown-edged green thorn moth are actually a kind of thorn moth, which is also the kind that pierces people.
Adult leaf-cutting bees, cut leaves to take home to build a nest, in preparation for the production of small peaks, feed on nectar, pollen.
Cut into this way, like a person bite, the temperature is around 20 ° C when the sunny day activity.
Peach aphid, see those white spots? It was their molting skin, and if you find such white spots on the leaves, you should check the back of the leaves.
The monthly aphid, in some places called greasy worms, shows how annoying it is.
Coal pollution caused by aphids, mainly aphids have honeydew secretion, dust stained on the leaves will appear mold, so cut it off!
Spotted bugs suck the sap of the young leaves, young stems, fruits, and ears of the host plant. In severe cases, the leaves are curled and the young stems wither.
Rhododendron web bugs, which suck the sap from the leaf backs of host plants, are somewhat similar to the red spider hazards, and the plant grows weakly when severe.
Hemp skin bugs, which suck the young stems, young leaves and fruit juice of host plants, will cause leaf fall and young stems to die in severe cases.
The larvae of the hemp-skin bug, called the bed bug in the north,
Our common red spider looks like this, which is actually a photo after enlargement. Feeding on the back of the leaf, it is difficult to control due to the small size of the insect.
The symptoms of the red spider harming the moon season, like the appearance of the web bug hazard, the killing requires multiple sprays, and the egg killing drugs are also coordinated.
Greenhouse whitefly, which has migratory properties and several generations a year when warm, is also a relatively difficult type to control.
Chrysanthemum leafminer fly larvae endanger the leaves, basically leaf-diving pests are this symptom, if the insect body is small, you can cut the leaves, more insects need to be killed by drugs
Dried moth pests are more difficult to detect, but they are very harmful pests, they not only eat the stems of the plant themselves, their excrement will cause diseases, so the adult insects found to be destroyed.
Star sky cattle, a lot of spring, interested in catching some of the insect specimens, but also can be regarded as a pest removal.
The peach-necked celestial bull, which is also a moth pest,
The larvae of the celestial cow, which eat the tissues in the stem, can kill a large tree when severe, and are also the pests that the garden department focuses on preventing.
The accumulation of excrement into the mouth of the cave will cause disease, and it can be pierced from here with wire, and the soft thing that touches it is the insect body.
The symptoms of the moon stem bee harming the moon season are often mistaken for lack of water, but the lack of water is the wilting of the whole plant.
The worm body has been living inside for a long time, the excrement has accumulated inside the stem, and if there are fewer endangered plants, the diseased branches can be pruned.
Underground pests are the most difficult to detect, sometimes the underground rhizomes of the plant are eaten, the plant is on the verge of death, but the appearance is often mistaken for the plant is dehydrated or diseased. For this pest, it is necessary to start from the time of planting, choose the soil without insect eggs, the soil dug in the wild should be used after killing insects, and check whether the root system has been eaten by pests every year when changing pots, and check whether there are any eggs gathered at the bottom of the pot. Pests should be removed immediately when found, and in order to prevent pests from laying eggs on the pelvic floor, the pelvic floor should be kept dry. Conditionally, the pot can be tiptoed up, which not only strengthens the ventilation of the plant pot floor, but also prevents pests from laying eggs here.
The larvae of the ground tiger, the adult insects are nocturnal moths, which bite off the roots of the plant in the soil for food, which will seriously cause the entire plant to die.
The larvae of the scarab beetle, grubs, feed on the underground tissues that harm the plant. The insect body is large, and it can be found when carefully observing the potting soil when changing the soil.
It is more difficult to find in this pot, but it should also be noted when fetching soil in the wild, it feeds on plant seeds, young shoots, and seedlings.
All right! Pests are introduced so much, these pictures basically cover the types of pests I have seen, if I see pests that are not mentioned here again in the future, I will send micro headlines with pictures, if you like to hope to click a point of attention. If you feel that this article is still written well, welcome to forward it and let more friends understand these.
This is root-knot nematode disease, the infectious factor is the harm of wired insects, and the treatment after the onset of the disease is more complicated, and nematodes can be added to the soil for prevention.
Plants, talk about plants, talk about plants!
Note (1): A phylum is a branch of the taxonomy system. Taxonomy usually includes seven main levels: boundaries, phylums, orders, families, genera, and species. Species (species) are the basic units, and the species of the close relatives are grouped into the genus, the genus of the close relatives are grouped into the family, the family is subordinate to the order, the order is subordinate to the order, the class is subordinate to the gate, and the gate is subordinate to the boundary. For example, the moon season belongs to the plant kingdom, angiosperm phylum, dicotyledonous plants, rosaceae, rosaceae, rosaceae. If we subdivide the orders, orders, families, and genera, there are suborders, suborders, subfamilys, subgenera, and some families and groups, this will be more finely divided. If you like plant taxonomy, you can study it, you will find it very interesting, some different plants are actually very close to each other.
Note (2): The mouthparts are the feeding organs of animals in the insect order, and because they could not find a suitable name, animals other than insects also used this name.
Note (3): Gastric toxic insecticides, pesticides kill pests in the way is divided into gastric poisons, contact inhibitors, fumigants, systemic agents, avoidant agents, sterile agents, food repellents, insect growth regulators, sexual attractants. Gastric poison is a drug that enters the digestive organs of pests with food, is absorbed by pests and causes poisoning and death.