In winter, there are beetles, aphids, and red spiders

In winter, there are longhorn beetles, aphids, and red spiders.

Such as: the national acacia, the tree type is tall, its branches and leaves are dense, the green shade is like a cover, it is an excellent greening tree species, and its insect pests are mainly longhorn beetles. The longhorn beetle, chewing mouthparts, sucking tree sap, is very harmful. Its larvae spend the winter in the hole of the tree, develop into pupae the following year, and then become an adult longhorn beetle.

In winter, there are longhorn beetles, aphids, and red spider larvae that hibernate in winter and hatch in large numbers in the coming year, so greening should do a good job of preventing and killing these insects before winter.

In winter, there are also beetles, aphids, and red spiders. In some places where the temperature is not too cold, when the sun is warm, you can also see these small insects. But in cold places, these small insects are not seen. will all freeze to death.

In winter, the greening will be colder, and it is not suitable for greening when it freezes or snows, so the weather is cold, and the beetles, aphids, and red spiders will hide, and they dare not go out, or freeze to death, or burrow underground to hide, and in the spring season, the beetles, aphids, red spiders and other pests will come out. For example, the optimal temperature is 29 31, and the optimal relative humidity is 35 55%. Therefore, the high temperature and dry weather in summer are beneficial to its occurrence.

Spider mites are omnivorous, and many weeds are its hosts, so plots with many weeds and extensive management are more heavy. There are also aphids, and when the average temperature reaches more than 12 degrees in spring, the aphids begin to hatch and reproduce. At 12-16 degrees, it is the best temperature for aphids to grow and reproduce, and too high or too low temperature is not conducive to the growth of aphids.

Yes, although the temperature is relatively cold in winter, many pests such as beetle, aphids, and red spiders will not all be frozen to death, they will hide in the roots of plants to help them survive the cold winter, and when the weather is warm, they will run out and continue to harm crops.

The adverse effects of winter, strong winds, cold waves, cold snaps and other weather brought by winter will continue to cool down in winter. Prepare some people who need to overwinter in advance, and the red spider and aphid beetle beetle in the wheat field are no exception, which can become very fragile and basically lack vitality in winter.

Many elderly people said: "Winter aphids, red spiders, as long as the winter is over, they will freeze to death, and there is no need to control them"! Is this true?

After the cold winter, there is no harm from red spiders and aphids? It doesn't seem to make sense, because every spring, the temperature rises, and aphids and red spiders do not know that they come out of the ** again, and continue to harm, if they are not controlled, the harvest of crops will be greatly affected.

Spider mites, aphids although the individual is small, has the ability to adapt to the cold and other adverse environments, after the arrival of winter, except for some larvae or nymphs The ability to adapt to the cold is relatively poor, and will freeze to death, but for the eggs or adults of red spiders or aphids, they can not all freeze to death at low temperatures in winter, and the adults lay their eggs in the roots of the plant, close to the soil part, or lay their eggs in the cracks of the soil at the roots of the crops.

Yes. Although most of the flower pests and diseases enter the overwintering (or dormant) state in winter, due to the influence of the abnormal climate in warm winter, and the strong adaptability of some pest and disease species, there are still some pest and disease species continue to be active in winter, harming garden plants.

The types of pests and diseases that can still be harmed on garden plants in winter mainly include gray and white silkworm moth, some scale insects, some aphids, blackthorn whitefly, fig mother tube thrips, termites, longhorn beetle, soot disease, osmanthus blight and so on. It is necessary to promptly prescribe the right medicine according to the characteristics of the hazards that occur, prevent and control them, and control the hazards.

In winter, there are no beetles, aphids, and red spiders, and generally appear in summer.

In winter, there are beetles, aphids, and red spidersIn winter, the temperature is very low, and there are no beetle, aphids, red spiders.

Because the temperature is too low in winter, there are no beetles, aphids, and red spiders in the greenery.

No, because the winter temperatures are cold, not adapted to the growth of these insects.

You want to see that you are in **? If you're in the north, I don't think there's anything, and there should be a higher temperature in the south in winter. However, the bull does not have winter bulls.

The main pests and diseases that often occur in garden plants are: scale insects, longhorn beetles, gidding insects, aphids, red spiders, white spiders (two-spotted leaf mites), pear web bugs, leafhoppers, planthoppers, stinging moths, American white moths, pine caterpillars, pine wood nematode disease, brown spot disease, rot disease, iron deficiency yellow leaf disease, etc.

There are many situations of this, and it cannot be discussed in one article. Special analysis of special circumstances, different plants also have different pests and diseases.

In the process of controlling garden plant pests and diseases, the following principles should be adhered to: back.

1) The principle of sustainable control.

Garden managers must adhere to the principle of sustainable control, complete the transformation from the prevention and control of garden plant pests and diseases to the management of pests and diseases, and transfer from the protection of the plant itself to the protection of the production system of the entire garden.

2) The principle of combining prevention and treatment.

According to the characteristics of the garden itself, we should thoroughly implement the principle of prevention first and combination of prevention and control, so as to achieve the goal of complete control of pests and diseases, but also not to affect the greening function and normal growth of plants, so as to ensure the safety of the environment, people and natural enemies of pests.

3) Principles of biological control.

It is necessary to intensify the development of biological control of garden diseases and insect pests, pay attention to protecting the world where insect pests occur, and create good conditions for their survival and reproduction, so as to achieve the goal of maintaining ecological balance. At the same time, attention should also be paid to cultivating and giving full play to the stress resistance of plants themselves, and adjusting the cold tolerance, defense, compensation and other induced resistance of plants to the best state.

4) The principle of using drugs with caution.

Gardeners should be fully aware of the negative effects of the use of chemicals to prevent and control garden pests and diseases, strengthen the natural control of pests and diseases, if it is necessary to use chemicals, should be based on the actual conditions of the region to choose those pollution-free pesticides or pollution-free control technology. In the management of pests, the management of adults should be the main content, the reason is that adult management belongs to the category of preventive management, and the management caused by the management is smaller and more targeted.

The insect pests of garden plants in China include aphids, red spiders, cotton bollworms and so on.

There are many pests of garden plants, generally there are the following categories, one is a leaf-eating pest, mainly by feeding on leaves, serious will eat up plant leaves, such as butterfly larvae. The second type is sap-sucking pests, which mainly rely on stinging-sucking mouthparts to suck the sap of plants, such as aphids. The third type is borer-eating pests, which mainly enter the inside of plants and feed on plant branches, such as longhorn beetle.

There is also a category called underground pests, which mainly damage the roots of plants.

The prevention and control of garden tree diseases and insect pests is simpler than that of field crops, mainly to pay attention to daily maintenance work, timely detection and timely prevention. For example, in winter, it is necessary to do a good job of whitening the trunk, which can not only prevent and control sunburn, but also effectively prevent the occurrence of germs and insect eggs, which plays a role in prevention. In addition, in the spring and summer, pests are found to spray drugs in time, such as dry borer pests, you can use happy forest borer dry pests to insert bottles and punch holes, knock down quickly, have a long effective period, and have outstanding effects on boring pests.

Aphids can use Flora 20% cyanopente. Marathon diluted 1000-1500 times liquid spray, mites can be used Avi. 10ml of pyridoxin is sprayed evenly with 15-25 kg of water.

1. Hibiscus leaf spot and rust hazards.

The control method of common pests and diseases of hibiscus, the control method: spray with 65% zeb wettable powder 600 times.

Other insect pests include whiteflies and beetles, mainly aphids, but also inchworms and leaf-curling moths.

The environmentally safe method of pest control is to use diluted detergent. Prevention and control method: It can be sprayed with 1000 times of 40% oxidized dimethoate emulsifiable concentrate.

Control methods of common pests and diseases of hibiscus, hibiscus planting technology.

2. Hibiscus brown spot disease.

Lesions are scarce, and the dorsal surface of the leaf is diffuse plaques, sometimes fused. When the humidity is high, there is dark brown velvet on the back of the leaves, that is, the conidia and conidia of pathogenic bacteria. Symptoms: Mainly damage leaves, lesions are polygonal, dark brown, 3-10mm in size. Prevention and control methods:

Control methods for common pests and diseases of hibiscus.

1. Careful maintenance, reasonable fertilization, and appropriate application of organic fertilizer.

2. At the end of autumn, completely diseased leaves and diseased leaves on branches should be buried or burned in a concentrated manner.

3. At the beginning of the disease, spray 50% thiophanate-methyl 800 times and 50% carbendazim 500 times, once every 10 days or so, 2-3 times in a row.

3. White Star Scarab.

The prevention and control methods of common pests and diseases of hibiscus, also known as "fine shell", harm hibiscus, yueji, goldenrod, etc., and feed on young buds, leaves, flowers and buds with adults.

Prevention and control methods: 1. Manually capture adult worms.

Control methods of common pests and diseases of hibiscus, hibiscus planting technology.

2. Before June, when the adults have not yet emerged, turn over the soil to pick up the larvae and pupae. The larvae are concentrated in places such as decaying dung mounds near flower beds.

3. When the adult worm is full of harm, spray 1000 times of 40% dimethoate emulsifiable concentrate for prevention and control.

Don't spray, the simple way is to put the pot in the shade, and it will be gone in a few days.

Use aphidrone + bifenazide 15oo times to spray and kill.

In the spring, cut off all the leaves and wait for the sprouts.

Aphids basically suck young leaf shoots and flower buds, so I put on gloves at the beginning and pinched, some branches are really annoying and cut directly, and then in the next few days, as long as I pinch the young shoots (just germinated and not still red), the aphids will be extinct, and now they have not appeared for two or three years. It is especially useful in the early days when it has just appeared and is not much.

There is a lot of time, and I use a tooth to pick out the aphids on the flowers and leaves, and feed them directly to the home-raised sundew.

My method of treating firethorn aphids is to fill a bucket with water, soak all the leaves in water for 20 minutes, take them out and spray them with a showerhead to clean them.

Aphids, cigarette butts soaked in water, the effect is not very good.

Laundry detergent, soap powder like a little added, used many times, the effect is very good, (single sample has not been tried, anyway, there are two at home, after using it once, I have been using it like this).

I'll say a simple one. There may be people in the house who smoke and put their cigarette butts in water for a period of time, and having this water to water the flowers can control pests. Because nicotine is highly toxic to pests, it can be used as a plant-derived pesticide.

What to do with small flying insects? I have a few pots of orchids with small flying insects, and the pot surface is dripping with a lot of wind oil, and the taste is faint and coming.

Abamectin for red spiders and imidacloprid for aphids.

Make a big cover and sell dozens of seven-star ladybugs to put inside.

There are not many flowers and plants at home, and if there are aphids and red spiders, they will be artificially exterminated. I also made myself so troublesome.

Mosquito gunner spray. Or 5 Fill it with ice-cold water and spray it in a sprayer.

Simple, soapy and watery spray, done.

I usually serve directly with imidacloprid, and the spray can not be sprayed directly to irrigate the roots of aphids, scale insects and other hanging up

It's simple, put 3g of 5g laundry detergent in a household handheld sprayer, add a can of water to dissolve and spray, and the next day all the aphids will die.

I'll just use it"Exterminate the spirit"Sprays. Available in a watering can filled with water"Squirt in"Exterminate the spirit"Reduce the concentration before spraying onto the flowers.

Soak fresh peppers in water and dilute them and spray them on the plants; I raised a few pots of pitcher plants by myself, and when I was bored, I caught them in the pig cages, and sometimes the little spiders would run into the pitcher plants' cages, and in recent days I have found that there are fewer aphids.

For the deep flower farmers to tell you what to do, the drug avi high chlorine is diluted and sprayed on the flowers with water, and the results are immediate.

The branches of the royal begonia are dark purple, the new leaves are red, and when mature, they are purple with a green halo. The flowering period is late April, the fruit ripening period is 6-10 months, the flowers, leaves and fruits of the royal begonia are dark rose red, noble and elegant, and it is a rare variety of color-leaved begonia. Royal Begonia is light-loving, cold-resistant, drought-resistant, not water-resistant, not strict on soil requirements, barren and thin, and resistant to mild saline-alkali soil.

It is one of the most ideal tree species for beautifying, coloring, fruiting and greening gardens.

The application of royal begonias in landscaping is introduced as follows:

1. In urban landscaping: Begonia is an excellent ornamental small tree, which can green flower beds, roads, parks, and communities. The ornamental value is high, the greening effect is outstanding, and the planting of royal begonias can quickly reflect the greening effect.

2. Green Island and Green Belt in the parking lot: the use of royal begonias has an excellent effect. They make people feel happy when shopping, going to work, traveling and parking, or when they get back into the car at the end of a day's work, and play a role in eliminating fatigue and sleepiness.

Of course, the background of the royal begonia is more perfectly expressed against the background of tall trees and shrubs with dignified and single colors.

3. Courtyard and building periphery: The background of the building wall is the first thing to consider, because the color of the royal begonia changes in four seasons, so not only the color of the flowers or leaves can be considered. The fruit varies from generation to ripening to fruit dropping, and some fruits appear in a variety of colors in different seasons, and the leaf color is constantly changing, and only in winter when only the fruit is left can be relatively stable for a period of time.

Therefore, colored walls should be avoided for a long time, and white or plain walls are better.

4. Recruit birds to project interforest species: choose varieties with large fruit quantity and birds love to eat, if the fruit amount is large but the birds do not love the varieties will have no meaning. The fruit of the royal begonia is eaten by birds from the "snow fall", a small fruit but large yield variety, which is fully ripe in late September.

Every week thereafter, begonias pulp and become the target of bird attacks, and this edible fruit** lasts until the early spring of the following year.

Pests and diseases: The main insect pests of Begonia royal are: aphids, leafhoppers, scale insects, yellow thorn moths, red spiders and longhorn beetles; The main diseases are: leaf perforation, leaf spot, rot, red star disease, etc.

If there are pests and diseases, dichlorvos, dimethoate and other insecticides can be sprayed to control aphids, leaf hoppers and other stinging pests and leaf-eating pests, and green Weilei can be used to control longhorn beetles; For diseases, the method of prevention should be adopted, which can be prevented by spraying stone sulfur mixture and Bordeaux solution in early spring, and if it occurs, it can be prevented with chlorothalonil, carbendazim or methyl tobuzine solution.