Golden bronze is a large beetle with a beautiful body color: the chitinous coating has an emerald green color with a metallic tinge. It is hard to believe, but this beautiful insect is a malicious garden pest mercilessly destroying the ovary of fruit trees. In order not to be left without a harvest, gardeners came up with several methods of fighting the beetle.
Golden bronzovka belongs to the order of beetles, the genus Cetonia (this name from the ancient Greek language translates as "metal beetle"). The insect's body is 1.3–2.3 cm long, 0.8–1.2 cm wide, its chitinous coating is covered with fine hairs, the color varies depending on the angle at which sunlight falls on the body. Mostly the color of chitin is bright green, at a certain angle copper, violet, nacreous or golden tint appears.
Often you can hear how the bronze is called the May green beetle. The name is wrong, as insects belong to different genera. In addition to the different colors, they have a different nature of behavior, a different device of aircraft.
Within the bronzovka beetle species, seven subspecies were found, each of which has its own habitat and color. But all beetles have a common feature - a shiny metallic casting of the body.
Golden Bronze is common in Eurasia, it feels great in the forest and forest-steppe zones, in well-lit areas. This species of beetles does not settle in the highlands, in the steppe zone.
Bronzovka - slow insects, they are active only in warm sunny weather. The rest of the time, the beetles sit motionless on bushes and trees, when they fall to the ground they become numb, then they cannot turn over and fly for a long time. During cold weather, insects fall to the ground and burrow into it.
Bronzovka reproduces and develops as follows:
- The female beetle lays eggs in rotten stumps or tree trunks, anthills, compost pits. After laying eggs, she dies.
- The eggs appear yellow-white larvae with a curved body covered with hairs. The larva feeds heavily on organic residues, reaches the size of 6 cm by the end of its development.
- The larva pupates in the same substrate in which it lived and ate. The pupa resembles an adult beetle with short wings; it is in this condition for 2 weeks.
- The beetles emerge from the pupae in autumn or summer, the time of their release depends on the time of laying eggs by the female. If bronzovki come out of the state of the pupa in the fall, then they appear in the gardens and gardens in early spring, wintering in the underground shelter.
Harm of a bronzovka for a garden
Large emerald beetles can cause significant damage: they feed on flowers and ovaries of fruit trees and shrubs. Insects gnaw out the reproductive organs of plants - pistils and stamens of flowers. Experienced gardeners immediately determine that the plants have been bronzovka: individual flowers wither, when they are examined, there is a lack of centers.
Also, bronzovki can attack the young shoots of peonies, corn, grapes, roses, damage the fruits of cherries, raspberries, grapes and mulberries. They feed on beetles and wild plants: plantain, elder, clover, yarrow, tansy are in their “menu”.
Scientists do not consider green beetles to be too dangerous for the garden and vegetable garden, justifying their opinion by the fact that most of the beetles emerge from the pupae by the middle of summer, when fruit trees and shrubs have already faded. Therefore, there are no developed insect control measures that would be approved by experts.
But gardeners do not agree with the opinion of scientists and annually come up with new methods of dealing with a handsome pest.
Methods of struggle
All existing methods of dealing with green Bronzka are inventions of amateur gardeners who do not want to tolerate the invasion of uninvited guests. To increase the efficiency, it is recommended to combine several methods of insect control.
The following methods are used to destroy bronze in the garden and in the garden.
Mechanical methods. This is the safest method of getting rid of bronzovok, which consists in the manual collection of insects. It is very easy to do this due to the behavior of beetles: in cool weather they become slow-moving, they are easy to assemble by hand. It is most convenient to collect bronzovok in the morning when they climb flowers in anticipation of the warm sun: insects are removed by hands one by one and placed in a can of kerosene. If the invasion of pests is massive, they can be shaken from branches to litter.
The second method of collecting bronzovok - using the lamp. It is turned on in the garden with the arrival of darkness, and a can of kerosene is placed under it. Bronzovka flock to the light and immediately fall into the bank. The disadvantage of this method is that many other insects will fly into the light.
Folk ways. To repel bronzovok from plants spend spraying onion extract. To prepare it, take a liter jar of onion peel, pour two liters of hot water at a temperature of 40−50 ° C, insist two days. Then the infusion is filtered, add another 4 liters of water, used for spraying. In order to better stick to the plants and longer served as protection against green bugs, it adds 10 g of liquid soap.
Spraying is also carried out with a solution of ash: a tablespoon of wood ash is added to 5 liters of water, mixed, infused for two days. In the solution add a teaspoon of liquid soap.
Chemical method. It uses the means to destroy the Colorado potato beetle: Regent, Colorado, Bankol and others. Drugs are diluted in water, guided by the instructions of the instructions, then the earth is watered with a solution near trees and bushes. They do this in the evening, just before sunset, so that the beetles, buried in the ground at night, are poisoned.
For the prevention of breeding bronzovok on the garden is recommended:
- Plowing the soil right after the winter, with the beetle larvae hibernating in the ground being moved to the surface. Colds that stay in early spring are disastrous for bronze larvae.
- Remove from the site humus heaps, rotted leaves, rotten stumps - habitats of larvae.
Many gardeners still do not know the name of the beautiful emerald-green beetle, what danger it presents to the garden. If not to take measures, the bronzovka can fairly spoil the future harvest.
Beetle-bronzovka presented on the photo
belongs to the family of plate, subfamily beetles. There are five subspecies of these beetles, differing in habitat and appearance. They can be found in the whole of Eurasia, excluding mountainous and desert regions. A characteristic difference of insects of this species is the metallic bright color and the ability to fly.
During flight, the elytra, which is rather rigid in the bronzovok, is folded - this is their main difference from other beetles. In this case, the release of transparent and thin wings is due to the special side grooves. Therefore, the size absolutely does not prevent these beetles from maneuvering well in the air. The most common are bronze golden, shaggy and small green.
Under the bronze do not understand the name of the beetle, and the name of the genus, which includes a large number of species, the main ones are:
- Smooth bronze. Widely distributed in temperate regions. Most often found in gardens and forests with sick old trees. Practically does not harm the flowers, as the basis of its diet is the juice of overripe fruits and plants. The body has a golden-green, in some cases with a blue or red tint, the length of such a beetle is about 30 mm.
- Smelly bronzovka. It prefers a warm climate. Larvae develop in the ground, feeding on the roots of plants, adult beetles - pollen. The insect has a black shiny color with white patches and a body length of about 12 mm. On the body of imago there are white hairs that disappear with age.
- Marble bronze. Dwells in the forest and forest-steppe zone, preferring the old gardens and forests with many sick and rotten trees. It is the juice flowing from such trees that it feeds on. Insect length 27 mm, color - black and bronze with a green tint.
- Green Bronzovka. The main source of food for it are the stamens, pistils and flower petals. The beetle got its name due to its green color, often with a golden hue. Body length reaches 20 mm.
- Congolese Bronze. Occurs in places where the tropical climate, lives in the bushes and trees. It feeds on fruits, leaves and flowers. It has a rather short life cycle - about 2 months. Exotic lovers like it with their yellow-orange color, some of them have such bugs at home.
Like all insects, bronzovki during life pass through several stages of development: the formation of a larva from an egg, the appearance of a pupa from a larva, an exit from an adult pupa. The development cycle occurs within 2–3 years, and the bug itself lives for about a year.
Laying females eggs occurs in the summer. After a few weeks, the larvae that feed on organic matter. The larvae are quite voracious, but it should be noted that their digested food serves as a means to enrich the soil.
Cultivated plants do not touch the golden bronze larvae. Wintering of larvae occurs in the ground, and with the onset of summer, they turn into pupae. Their short legs do an excellent job with the formation of a cocoon around them from the special secret that they single out. By the end of summer, an adult bronze beetle appears. Visually, males can be distinguished from females only by a larger size. The most active beetles are in spring and summer.
Insects of this species live in gardens, forests, gardens and parks. The main places where eggs are laid by females are manure or compost heaps or rotten stumps. Wintering of larvae and adults occurs here. Bronze trees prefer deciduous tree species - conifers do not interest them.
These bugs have natural enemies. Thus, the typhi and scolium wasps, the tahina fly, parasitize on their larvae. Adult individuals very often risk becoming prey of different birds. As for animals, they do not eat bronzovok as food. And the toxin contained in the body of these beetles is detrimental to small predators. Bronzers are especially active during the day, in sunny and dry weather.
What is harmful bronze
Bronzoviki - quite frequent visitors to gardens and orchards. Because of their voracity and destruction of flowers of ornamental, fruit and berry crops, they are considered pests. After they suck out the juice and gnaw the leaves, there are areas with damaged and yellowed plants.
This bug is especially harmful to the flowers of fruit and berry plants, young fruit of fruit trees, carrot and cabbage ovaries, and beet leaves.
It is worth noting that the bronzoviki gnaw out completely the pistils and stamens, as a result of which the process of pollination and fertilization becomes impossible, which means that the ripening of seeds and fruits is impossible.
To use poisons for spraying a flowering garden is impossible - in this case, beneficial insects involved in pollination. There are other methods to combat bronze. For example, knowing that bugs bury themselves in the ground at night, you need to bury the Medvetoks drug (or its equivalent) to a depth of 2-6 cm. For beneficial insects, this procedure will be harmless, but pests should be killed.
You also need to examine the manure and peat heaps that are nearby. If larvae are found there, the preparation should be applied in granules “Basudin” (15 g per 10 sq. M). You can spray plantings with liquid soap or use a solution of green soap.
If you find a large number of bronzovok on any tree, you need to shake the crown, pre-spread a film under it. Fallen beetles must be collected and then burned or poured with water.
If bronzoviki found on low ornamental plants, beetles are best collected manually. Do not forget that this pest in landscaped gardens rarely appears, as it prefers to eat rotten wood. Therefore, the site should not be sick trees, and small damage to them need to cover up with special means. It is important to remember that plantations in order are not attractive to these beetles.
Golden Bronzovka: classification and habitat
Bronzovka belong to the family of Plastinous (Scarab-like) and the order Cetonea ("metal" beetles). Their closest relatives are crunches, scarabs, copra, rhinoceros beetles and deer beetles. The largest member of the family is the goliath beetle, whose weight is about 100 g. Bronzovka vulgaris, along with copper, is one of the most numerous species. It is found in all regions of Europe (except for some regions of Portugal and Spain), in the Crimea, Eastern Siberia, the Caucasus and some countries of Central Asia. Bronzovka feels comfortable only in a relatively humid climate, so these beetles do not live in deserts. Some species of these insects (in particular, beautiful and smooth) are listed in the Red Book, but the golden bronze is not threatened with extinction.
Even in regions with an unfavorable environmental situation, the population of the common bronze is not declining.
Her exotic relatives prefer a tropical climate. Especially a lot of them in India and Africa.
What does a golden bronze look like?
The length of the body of this beetle - from one and a half to two centimeters, width - up to 1.4 cm. From the bottom it has a golden-bronze, brownish color. For elytra, numerous variants are possible - from the most common emerald green to reddish, purple, bright blue, or even black. The main distinguishing feature of golden bronze is a bright metallic (mostly copper) luster. The elytra are decorated with several light transverse stripes. Bronzka looks smoother and less “woolly” compared to the May beetle. Another interesting feature is manifested in its movement: this beetle does not lift the elytra. To take off, it spreads its wings, folded in half, through special side slots. This trick improves the aerodynamic characteristics of an insect, making its flight more maneuverable. As you can see for yourself, the picture below shows a characteristic colored bronze golden (photo in flight).
Stages of development
Bronzovka, like all insects, undergoes several metamorphoses during life: a larva develops from an egg, a pupa develops from a larva, and an imago from it develops. The whole cycle takes about two to three years, and the beetle lives no more than a year. Bronze females lay eggs in the summer, at the end of June or in July, and die after some time. After a few weeks, the larvae hatch. They are thick, white or gray, reaching 6 cm in length. The larvae actively feed on cellulose and organic matter (weed roots, rotting plant remains, bark, hay, manure, fungi), and digest the food to enrich the soil. Due to the gluttony of the larvae, this process is very fast. Living cultural plants golden bronze (staying in the larvae stage) does not touch.
The larvae winter, buried in the ground. Next summer they turn into pupae. To do this, the larvae form a cocoon around themselves from the sticky secretion they excrete using short legs. In late summer, an adult beetle emerges from the cocoon. Males differ from females only in size: they are larger, in general, Bronze women have not developed sexual dimorphism. The activity of the beetle lasts from late spring to mid-summer.
Insect bronzovka lives in forests, gardens, parks, meadows and gardens. Females lay eggs in compost and dung heaps, rotten stumps, in hollows of dead trees. Both larvae and adults overwinter in approximately the same places. It is important to note that bronze woods prefer hardwood, rotten spruces and pines do not attract them.
It is believed that the natural enemies of the bronzovok not so much. The larvae are parasitic wasps of Scolia and Typhus, as well as the Tahina fly. Adult beetles become prey of birds. Bronze animals, as a rule, do not eat animals, since these insects produce a special toxin, which can be fatal for a small predator.
Beetles are active in the daytime, especially if the weather is dry and sunny.
Bronze larvae are beneficial: by utilizing rotting wood, weed roots and organic remains, they contribute to the formation of a fertile soil layer, which has a positive effect on the state of the latter.
But the mouth apparatus of adult beetles is not adapted for the absorption of coarse food. Golden bronze, the photo of which is located below, feeds on flowers of plants (stamens, pistils and ovaries).
Также от бронзовок страдают молодые листья и плоды. Не брезгуют жуки и древесным соком. К сожалению, бронзовки любят декоративные растения: розы (из-за этого их даже называют «розовыми жуками»), пионы, малину, виноград, землянику, а также цветы плодовых деревьев (вишни, яблони). Для них представляют интерес любые полевые, луговые или декоративные растения со сладким соком.
Gardeners do not like bronze for ugly eaten flowers and "skeletal" leaves.
Bronzovka in the garden
However, the golden bronze is not recognized as a harmful insect. Its larvae are uniquely useful, the pupae are harmless, and the damage from adult beetles is insignificant. Experts say that bronzovki do not affect the yield of fruit trees. In addition, unlike the larvae, adult beetles are not voracious and can not cause much harm. Therefore, the fight against bronzovki (method of manual collection or using chemicals) in most cases does not make sense.
Golden bronze beetle (photo), bronze larva
On warm days, glittering sides in the sun golden bronze beetle (photo), and the unsightly bronze larva hides in the ground. The question arises - is it a pest or not? Let's take a look at how this insect lives and how it feeds.
Bronzovka come in different types:
- color with a characteristic metallic shine (golden, marble, metallic),
- without shine (smelly, shaggy).
Golden bronze beetle reaches a length of slightly more than 2 cm and is very noticeable on plants due to its bright color. Usually sitting motionless on flowers, not paying attention to the presence of a person. He moves slowly and reluctantly leaves his place. During the flight, it can easily hit a passing person and fall to the ground. If you take it in hand, it does not bite, does not stink, behaves quite peacefully.
Golden Bronze larva, pest or not
Golden bronze larva does not cause concern to man. But it is often confused with the larva of the May beetle, which brings a lot of trouble and destroys the plants of our site. What is the difference between them?
Outwardly, only at first glance the bronze larva looks like a May one. In the grub beetle powerful head and body, legs longer, have claws. Chews are able to gnaw through the roots. Bronzovka is weaker in appearance, the head is not large, without powerful chewing. The legs are short and weak, without claws. She does not need to gnaw anything, and she does not move with the help of her legs, but cuts her body.
The bronze larva does not feed on the roots of living plants. She eats decaying plant debris. Occurs in rotting stumps, humus heaps, in pereperevayuschim leaves forest litter. If you meet them in the soil, then most likely it will be some kind of buried organic matter, prikatanny plant residues.
But the Maybot larva can live in plant debris only in the early period of development. Then she needs juicy roots. Therefore, we will meet it in the soil, often under fading plants.
Therefore, it is not necessary to call the golden bronze larva a pest.
Is there any harm from the golden bronze beetle
So is there anyway harm from the bronze gold beetle? We have already eliminated the larva from pests. And what about an adult insect. Outwardly cute, does not bite. What feeds on? First of all flowers. Fortunately, their massive years are not early and fruit trees already have time to bloom. I often observe a small amount on a wild rose and sunflower. No harm from their activities is not noticed. On the flowers in the flower garden, too, have seen, but the harm can not be called catastrophic. More trouble from various beetles - clickers.
Bronze can gnaw leaves, the ends of young shoots, eat the sap of plants flowing from cracks, even feast on fruits. But from all this they can not be called malicious pests and special measures to combat them are not developed.
The golden bronze beetle is guarded, listed in the Red Books of some regions. Harm can only be with a very large number of bugs, but this is not observed. In my area for the last couple of years, there has been a noticeable increase in the amount of golden bronze. Maybe this is due to three composting plants, in which the larvae develop very comfortably. No harm yet. In extreme cases, we will collect the beetles and carry them away into the woods, let them live. Who - the same need to recycle plant residues. And we will leave the struggle for the May beetle, whoever is really a plant pest, is he.
The bright beetle named "green bronze" is a typical representative of the forest insect category. He loves the sunny edges of the forest, often migrates to gardens and vegetable gardens. Penetrating into residential homes, eats potted plants. Sometimes wrecking is significant. It is because of the bronzovka have to fight.
Bronzovka fine green
Features of the anatomy and life of bronzovok
Bronzovka is attributed to the family of scarab beetles. The subfamily includes 5 subspecies, individuals of which differ in appearance and habitat. The green beetle is similar to the may, with which it is sometimes confused.
- green with metallic overflow color, which makes bronzovok very visible, beautiful,
- medium-sized, forward-extended and slightly tilted head, wide, oblong body,
- the nature of the flight - the rigid wings of the bronze remain in the process of flights folded, and transparent thin at this time are released through the side grooves.
Interesting! Regardless of the impressive size of the calf (varies from 18 to 20 mm), these beetles feel freely and easily in the air.
The departure period begins in May, lasts 2 - 4 months. There is increased activity in the dry heat. On cloudy days, beetles sit motionless on the branches. At night, they prefer to dig into the ground.
Individuals of the female size smaller than the representatives of the male. Females lay their eggs in anthills, compost or dung heaps, dilapidated soft wood. Larvae differ in large parameters, they are thick and large. Twice occurs molting. Movement is carried out on the back, because they do not have claws.
How do bronze damage plants?
Colorful shiny beetles differ gluttony. Bronzovka green after introduction on the garden plot, the kitchen garden or in the house, starts active deterioration of the flora growing there.
- inflorescences fruit crops,
- decorative flowers
- fruits of various fruit specimens,
- cabbage, carrot ovaries, seeds,
- beet leaves, etc.
Important! Bugs are capable of mercilessly eating away the stamens and pistils that are hidden inside the inflorescences. As a result, pollination, seed ripening and fruiting crops are threatened.
Ornamental plant variants, when damaged by bronze, cease to perform the decorating function. They become faded, lose their pleasant aroma.
Principles of struggle
Absolutely accurate data on the effect to which the most susceptible Bronze green is, does not exist. Until recently, the beetle did not represent a significant threat to gardens or gardens.
Many summer residents are convinced that this species of insects cannot cause large-scale damage to plantings due to a sufficiently late summer - plants have time to bloom for this period.
Tip! Although the plants are devoured by adults, the struggle with them must begin with the destruction of the larvae.
Large bronze larvae inhabit rotten trees, humus heaps. If we get rid of spoiled wood in a timely manner, clean the area from fallen leaves, then the risk of the further emergence of an adult malicious “neighbor-insect” in the garden and garden beds is reduced several times.
Important! Environmentalists at the same time are sounding the alarm, because the Bronzians are threatened with extinction. Conservationists recommend resorting to the destruction of bugs only in extreme cases.
Methods of extermination of the small parasite
Apply several ways to get rid of green bugs. Techniques do not fundamentally differ from those used to eliminate other such pests.
Mechanical method. Manual removal of bronzovok is carried out. The action is performed according to the following algorithm:
- with cold water, a plant filled with a beetle is plentifully splashing (from the cold, a green bronze loses activity and dexterity),
- spreading oilcloth under a tree, shaking off branches - insects will fall off. You can manually collect bugs from low ornamental plants:
Collecting beetles hands
- after collecting the beetles are placed in a vessel filled with kerosene liquid.
The technique is not distinguished by high efficiency. In place of the dead bronzovok new bugs arrive. But the method used by those people who are opponents of spraying fruit plants with aggressive chemicals. Also used mechanical method in the period of active flowering plants.
Folk recipes. The method attracts with its safety for humans. The plants on which the May green bug has settled are treated with various herbal decoctions. Scare away the pest, for example, solutions of dandelions, tansy, wormwood. Do not like beetles and garlic, onions, horseradish, because they can also be actively used.
Chemical method The essence of the technique consists in applying various chemical agents to plants inhabited by beetles or adding pesticides to the soil in order to remove individuals hibernating or sleeping there.
Attention! It is forbidden to spray flowering trees with pesticides: this is how you can kill beneficial insects that pollinate the garden. In this case, there is a chance to remain without a crop at all.
Apply such means:
- "Medvetoks" - to bury the drug to a depth of 3 - 5 cm in the soil, closer to the dark time of day, when the green bronze begins to hide in the ground at night. The drug will destroy the bronzovka, but it does not harm the useful bugs.
- “Basudin”, “Thunder” or “Pochin” - they bring in dung heaps to destroy the larvae.
- "Liquid" smoke - sprayed crown (you can use a solution of green soap).
Important! Before use, you should carefully read the instructions. Be sure to comply with the dosage, take measures of individual protection against chemicals.
Predicting the soil immediately after the winter period can be attributed to prophylactic methods - this way you can get rid of the bugs that are in hibernation and prevent their active reproduction in the future.
You can look at bugs and learn how to deal with them here:
Bronzovka (Cetoniinae) is a subfamily of beetles belonging to the family of plate (Scarabaeidae). Includes five subspecies, which differ from each other in appearance and habitat. Within each subspecies several forms are distinguished, differing in color and presence or absence of hairs. These beetles are spread throughout Eurasia, except for desert and mountain regions.
Bronzka is often mistaken for an ordinary May beetle, as they belong to the same family. These insects can be distinguished by their bright metallic color and flight. When flying, the hard elytra of the bronze-plated remains folded, unlike most beetles, and thin transparent wings are released through the notches on the sides. Therefore, despite the size, these beetles maneuver well in the air.
The most common are Bronzovka golden, Bronzovka shaggy and Bronzovka small green.
Smooth bronze (Protaetia aeruginosa) and Marble bronze (Protaetia marmorata) are listed in the Red Book of the Moscow Region.
- Departure: in bronzovok begins in late May - early June and lasts for 2.5-4 months.
- Activity: most active in the heat, at night hiding in the soil.
- Nutrition: flowers, ovaries and young fruits, leaves, and sap secreted by trees.
Bronzovka is a typical forest dweller, preferring sunny glades. Due to their frequent visits to garden plots in search of food, they are recognized as pests. Beetles are very voracious, destroy the flowers of fruit and berry and ornamental crops, suck the sap from the plants, leaving behind yellowed patches, gnaw the leaves. If the bugs get into the house, then begin to eat indoor plants.
The harm done by the bronze to the garden plots is that this beetle feeds on:
- flowers of fruit and berry and ornamental plants, often eat the young fruits of fruit crops,
- ovaries of cabbage, carrot, that is, parts of a plant or fruit containing seeds,
- beet leaves.
Beetles completely gnaw out the stamens and pistils - the plant's reproductive organs that are inside the flower, so their pollination and fertilization becomes impossible, and therefore the maturation of fruits and seeds is impossible.
Ornamental plants at the same time cease to perform their function, acquiring a nondescript appearance and losing aroma.
Appearance and lifestyle of golden bronze
The length of the bronze is 1.5-2.3 cm. The color inside the species can be diverse, but usually there are emerald-green with a metallic sheen on top and copper-red insects from below. The legs are green and the upper part of the legs is purple.
Bronzovka active in the daytime. Often they can be observed in warm, sunny weather, and when it is overcast, the beetles sit motionless on the flowers. Beetles do not like cold and hide from it under the leaves of plants.
In the air, these insects look like heavy planes. And at first glance, the flyers of them are unimportant - like a bumblebee, the bronze seems too heavy. In fact, bronzovka can fly quite quickly, and they fly with spread wings, but adorned elytra - unlike other beetles, for example, ladybirds, who have elytra in flight.
The fragile bronze wings are hidden under solid sheaths. Insects spend almost all their time in search of food among the thickets, and strong elytra reliably protect the flying wings of beetles. After the bronzovka lands, the wings hide under the covers. This is a rather complicated procedure: the wings must be folded very carefully. But since the Bronzians spend most of their lives in the form of larvae, it would be more accurate to attribute them to earthly and not heavenly creatures. And indeed, bugs fly during a rather short period of their life. When the elytra of the bronze is closed, its pronotum, the triangle between the elytra, forms a Latin letter V. The observant person can easily distinguish the golden bronze from the beetle very similar to it — the green speckled gnorimus. In Bronze, this triangle is isosceles, and in Pestrius it is equilateral.
The bright coloring of the bronze is an illusion?
Bronzers are famous for their bright colors, but, in truth, they don’t have them at all. If you look at the beetle through a polarizing filter, it will become clear that it is almost colorless. It turns out that the color of the beetle is bright green with a metallic tint due to the ability of its body to diffuse light.
Plants owe their color to green pigment chlorophyll, which absorbs all light rays except green (it reflects them). And the metal ebb of the beetle is due to a unique optical effect - iridescence. This phenomenon occurs when light waves, reflected from the surface, overlap each other. This effect can still be seen on the wings of butterflies or on fish scales. In golden bronze, it arises because its rigid parts of the body consist of many thin layers. Light beams are reflected from each such layer, superimposed on each other and create a bright color play.
The amazing color range of beetles has evolved over millions of years — possibly so that the insect can attract individuals of the opposite sex. However, this feature has another advantage: the brilliance masks the outlines of the bronze, and predators do not see the appetizing beetle, but only a bright light.
The search for food for bronzovok is important, but perhaps more important for insects to have time to find a mate, i.e. continue the race And this helps them one amazing feature. On the tip of each antenna the bronzovka has a mace of three to seven plates that unfold like a fan. This mace, making the antennae especially sensitive, helps the insect to find not only food, but also a female.
Beetles have rather intricate mating rituals, and bronze ones are no exception. Usually beetles give each other signals using light or use a special set of ritual movements. Bronzovka, in order to attract a couple, uses its bright green outfit and the ability to excrete, as well as recognize special substances - pheromones.
After mating, the female lays eggs in decaying organic matter, and after about 2 weeks white larvae hatch, which are unusually voracious. They take food on their backs, wielding powerful jaws. The larvae grow rapidly and molt regularly as they grow. With the arrival of winter, species living in colder climates hibernate. The following summer, the larvae form a pupa, inside of which they slowly grow.
Most beetles are born in spring. For a few weeks, they gorge themselves on feeding on pollen, and then begin to look for a mate for themselves. It is at this time that we most often observe bronze flying in gardens and parks. Shortly after mating, the males die, and the females lay their eggs a few weeks later, after which they also die. For all its short life the female lays from several tens to several thousand eggs.
Golden bronze at home
To keep golden bronzovok at home is easy. В качестве жилища им подойдет садок или инсектарий — высокий аквариум, объемом 20 или более литров с сетчатой крышкой. На дно аквариума насыпают субстрат (песок, смешанный с торфом, дерновой почвой и прелыми листьями) слоем 15-20 см. Субстрат должен быть постоянно влажным, но не мокрым.
Температура в жилище бронзовок должна быть комнатная, чрезмерное тепло им не нужно.
The aquarium can be decorated with snags, small stones. If desired, and the availability of space in the home bronzovok placed pots with hardy plants (ficus Benjamin, sanseviera).
Adult insects need lighting. To do this, fluorescent lamps, including terrarium, emitting about 2% of ultraviolet radiation are suitable.
In winter, the wards are fed with slices of apples laid in sweet water, other sweet and juicy fruits. In the summer, add flowers to the diet of lilac, wild rose, rose, clover.
Ways to fight
Ways to get rid of bronzovki not very different from the generally accepted methods of pest control:
- Collection and shaking off beetles by hand. For relief, you can spray the plants with cold water, from which the bronzovki fall into a stupor. After shaking off, put them in a container with kerosene. This method is not particularly effective, since others will replace the destroyed bronze ones,
- Spraying broths and infusions of herbs that scare off pests, for example, dandelion, tansy, wormwood, garlic, horseradish, onions, etc.
- You can use pesticides, bringing them into the soil to a depth of 3-5 cm at night, as the beetles hide in the ground at night,
- Plowing the soil after winter will destroy the beetles that are in the soil during this period.
- Tags: bronze insect