More than one generation of summer residents is fighting the Colorado potato beetle - the gluttonous enemy of potatoes and all nightshades. This insect even adapts to pesticides, and the success of the fight against it lies in the alternation of funds or even in their complex. Many people use folk methods.
The smell of some plants is unpleasant to the pest, and he tries to avoid the places where they are planted. This is used by summer residents. As a result, the garden looks elegant, bright, and insects try to bypass the site.
By sowing marigolds or calendula between rows of potatoes, you can get the Colorado potato beetle away. Just do not be too zealous with the sowing area of the flower, otherwise the potato field will turn into a flower bed. This crop is self-sowing and will quickly occupy the area allotted for the garden.
Other names for this flower are mattiola or levkoy two-horned. There is a widespread belief among summer residents that it scares away beetles. Sow the seeds of the night violet in this order: one row of flowers, five - potatoes. Thus, you will protect the area from parasites and enjoy the scent of pink-lilac buds.
Just like marigolds, marigolds are able to scare away insects with their pungent smell. Plant seedlings around the perimeter of the potato field to protect them from pest infestations. Do not plant too many of these plants as they can take away moisture and nutrients from the tubers. Some varieties are tall and grow quite quickly. They will shade the tops from the sun.
Planting scented tobacco will help protect vegetables from bugs, but not grubs. Therefore, it is necessary to plant it early, while they have not yet hatched. It is not the smell of this plant that has a detrimental effect on the "invaders" - it, on the contrary, attracts them. Having tasted the stems or leaves, Colorado beetles die, since the tobacco juice is poisonous for them.
The culture has bactericidal properties, so it can be planted next to potato bushes. The neighborhood will be successful. It has long been noticed by gardeners that if a handful of onion husks are thrown into the hole with a tuber, pests do not even appear on the bushes.
Breeding beneficial insects on the site is considered a safe method of dealing with the Colorado potato beetle. It is harmless to nature and planting.
One of the natural enemies of the lover of potato tops is the common ladybug. It causes significant harm to the offspring of the Colorado potato beetle, eating larvae and eggs, but it is not afraid of adults. If the pest colony has grown, then it will not be possible to defeat it in one year with the help of only ladybirds.
This small, tender insect like a midge can also destroy a potato pest. Like a ladybug, it eats only eggs and larvae. The lacewing is powerless against adults.
Natural enemies of Colorado beetles in nature are ants. Where they are, this pest practically does not occur. Insects not only do not get along with each other. The offspring of the worst potato pest is in real danger. But the number of ants also needs to be monitored - if there are too many of them, aphids will breed.
Some poultry can feast on this insect. The main thing is that the potato plantation does not also suffer from them.
A bird, rather unpretentious to the conditions of detention. It tolerates temperatures from -40 to +50 ° C. It rarely gets sick and feeds on many harmful insects. Guinea fowls eat both larvae and adults. In addition, they do not rake the ground or spoil the plants. Beetles are collected from leaves. Guinea fowl meat is tasty, like eggs. For a plot of 10-15 acres, 3-4 birds are enough.
Turkeys also feed on pest larvae, but they must be taught to do this from childhood. Birds are gentle, requiring care and attention. They are prone to various diseases and have a difficult disposition. They are used quite often and successfully in the fight against insects. Turkeys start walking in June. At this time, the larvae appear. Many non-chemical methods can be proposed to combat the Colorado potato beetle. Each summer resident chooses the best for himself, based on his own preferences and capabilities.
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The larvae of the beetle often affect the planting of strawberries, since the soil under the plants is not completely dug up for several years. Caterpillars cause irreparable damage to plants, reduce yields by destroying leaves and roots. In order to save the berry plantation, you need to not only know how to get rid of the May beetle on strawberries, but also choose the right method.
The female lays up to eighty eggs, and then dies
It is believed that the birthplace of the Colorado potato beetle is the American state of Colorado. It was there, in 1859, that he first emptied potato fields. Initially, it lived on the spurs of the Rocky Mountains of northern Mexico, the main food was the horned nightshade and other wild crops. There, in 1824, the beetle was discovered for the first time. But the insect, which was quite harmless at that time, fully manifested itself after cultivated potatoes were brought to North America from Chile at the beginning of the 18th century. When the plantings reached the beetle's habitats, it quickly switched to a new species of nightshade and spread across the continent.
It did not reach Europe immediately due to strict quarantine measures, but during the post-war crisis they were weakened and the insect penetrated into European countries. The local climatic conditions suited him well, and already in the second half of the 20th century he migrated eastward and was noticed in Russia.
The color of the larvae of this beetle is bright orange with black dots on the sides. The wings of an adult are shiny, with a yellowish-black strip, the color of the abdomen is pale orange. The body shape is drop-shaped, convex on the outside and flat on the inside. Size - 8-12 mm in length and about 7 mm in width. Weight is 150 mg (+/- 10 mg).
Insects easily adapt to adverse changes in the environment, hibernating, which can last up to 3 years. This is all the more remarkable because their life expectancy is from 1 to 3 years. They can do without food for up to 2 months. Wintering is carried out in deep soil layers (30-70 cm), even withstanding severe winters. They wake up in the spring when the air warms up to 14 ° C.
They multiply rapidly: one female lays an average of about 700 eggs per season, up to 30 eggs for each potato or any other leaf, its lower part. Already after 4-17 days, it depends on temperature and humidity, dark brown larvae hatch from them, no more than 2 mm in size. They develop from 16 to 34 days and, growing up to 1.5 cm, become insecticide resistant.
The maturation cycle ends when they burrow into the ground and pupate for 2 weeks. After that, mature individuals come to the surface. Thus, potatoes can be sprayed when the development of the pest has reached stage II, but better earlier.
Fitoverm is very popular among the chemistry from the Colorado potato beetle. It helps not only from this parasite, but from others as well. At the same time, the product quickly decomposes and does not harm the environment. It is not necessary to destroy dead insects, they can serve as a good feeding.
To spray one hundred square meters of potatoes, it is necessary to dissolve 5 ml of the drug in 5 liters of water. Events are held in dry weather without rain, there should be no wind. The best temperature is about +25 degrees. To protect the culture, up to three treatments can be carried out, with a break of 20 days. Do not store the working solution. Due to the action of Fitoverm, parasites cannot feed and die already 3 days after treatment.
Judging by the reviews, this is a very good remedy for the Colorado potato beetle, which has a low price. For example, 4 ml costs only 14 rubles.
Biological products are modern environmentally friendly products designed to protect plants from pests and diseases. They are based on the use of living organisms or natural biologically active compounds that these organisms synthesize. Most often they are of plant or microbiological origin.
The destruction of pests occurs through exposure to their intestines or nervous system. In the first version, eating the processed leaves, insects die from poisoning. In the second case, they are paralyzed and die of hunger. Biologicals have a wide spectrum of action. Depending on the purpose, they are divided into the following main groups:
Some products are effective against rodents and slugs. There are biological preparations that are used to treat seeds before planting. This operation is carried out several days before disembarkation. It is necessary to process the seeds in the shade, avoiding direct sunlight. The result will delight the grower, such planting material will be distinguished by good similarity, disease resistance, more intensive growth, and increased productivity.
Some funds are applied to the soil. It is recommended to carry out this work 5-6 days before planting the plants. In this case, the number of beneficial microorganisms in the soil increases, which inhibit pathogenic bacteria.
At the same time, the decomposition of organic matter proceeds at a faster pace, the structure of the soil improves, as a result, the productivity of crops grown on the site increases.
Before planting seedlings, it is recommended to spray its root system with special biological products. Such processing is carried out 2-3 hours before the moment of planting. Plants prepared in this way will be disease resistant and more productive. Good results can be obtained by spraying rooted seedlings with biological agents. The treatment is carried out with suspensions of different concentrations - from 0.1 to 1%. The solution must be used on the day of preparation.
During watering, preparations can be applied along with water under the root system of plants. Bacteria of biological products will begin to interact with soil biocenosis, exerting an impact leading to a change in the development of phytophages.
This leads to the death of not only pathogenic microflora, but also insect pests.
These are drugs that disrupt the normal process of egg incubation, the subsequent transformation of the larvae into adult Colorado beetles. Their action manifests itself after contact with the surface of pests: insecticide substances block the reactions occurring in their organisms, which is why their death occurs.
These drugs have different effects:
Such funds are most effective when treating plants at the very beginning of egg deposition by beetles and before using any insecticides. It is permissible to use such funds no more than 2 times during the entire growing season. All of them have a long-lasting protective effect (not less than 1 month), retain high activity in heat and precipitation, and adhere perfectly to the leaves. These include: Nomolt, Rimon.
Fresh wormwood is not uncommon around any summer cottage, so collecting this plant and preparing a remedy to combat the Colorado potato beetle will not be a difficult task. It is necessary to cut off several bushes of fresh wormwood, chop finely and pour into a regular bucket (the greens should fill a third of the bucket). Pour boiling water over the herbs, mix thoroughly, cover and leave for several days. The infused wormwood is filtered and further used for spraying potato beds.
There are other interesting and original ways to combat Colorado beetles, which are used by summer residents in the beds with potatoes. However, not all of them are effective.
These funds include:
Hazardous chemicals can be used only when the use of standard measures has not yielded any result.
Remember that you can only fight the Colorado beetles, their larvae and clutches of eggs with comprehensive measures, only in this way you can get results. From the variety of tools, you must choose the most effective methods in your opinion (this can be collecting beetles by hand, planting calendula and spraying ash). You may be familiar with other methods that only you know, but they are no less effective than the ones you learned about today.