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The 2020 year of expansion of the velutin wasp (Asian)
- May 1, 2020
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The 2020 expansion of the velutin wasp (Asian). We will tell you in this article why we consider this information as very high probability. Go for it?
What is velutin (Asian) wasp?
La asian wasp (velutina), has been with us for a few years. Many are the people who have already experienced his dangerous attack. And many others have suffered its consequences, this time on their honeycombs. bees or crops.
We will not go into a deep definition of this species. You can see that in our section on pests, on this website, in the section dedicated exclusively to the velutin wasp.
But we give you four brushstrokes, in case you did not know it yet and you have been surprised by a nest on your farm, in your town or in the very interior of your house.
General characteristics of the velutin wasp (Asian)
The Asian wasp (velutina) is an insect hymenopter from China.
Like many other pests from that region, which also have reached Europe or America, effects that produce on indigenous species are devastating. Given that in the wasp's native area, the rest of the species are already integrated with them; and therefore, they have defensive systems to protect themselves and not succumb to their predation. But this does not happen once they expand to other regions from the planet where indigenous species are not prepared.
This described above happens, for example, with european bees, that are unable to defend themselves against the incessant attack of the velutin wasp. Coming to collapse entire hives, since the panic they have to go out and be devoured, they end up staying. And that causes the cut of resources and normal life in the hive; resulting in death of the community.
They have come to Europe or America and effects that produce on indigenous species are devastating.
The wasp it has a wingspan that can reach 49 mm. This places them in a dominant position against many insects. They are omnivores and, therefore, feed on both other insects and some fruits. This also places them as great enemies of crops, spoiling hundreds of plantations: vineyards, fruit trees, etc.
But the Asian wasp, in addition, can be dangerous for people and other animals. Since its sting can inoculate approximately ten times more venom than a native wasp smaller in size. And this for an allergic person can be fatal. In addition, it is being proven that a person who has had an attack by a velutin (Asian) wasp, or several, may have a more difficult time overcoming a second attack. Although time has passed between the first and the second.
So we can see that they are quite a threat. Without a doubt, 2020 will be a year of expansion for the velutina (Asian) wasp.
Where do they make their nests?
If you are reading this article, perhaps you have it more than clear. But we tell you a little more.
The wasp, roughly speaking, build two types of nests. At this time, many already have more than one of the so-called primary or embryonic nests. A nest that, the wasp reigns, which after leaving its hiding place where it spent in winter, begins in the area where it intends to build the secondary nest. This is not always the case and, once the first workers are born, they will look for a new, more favorable location, if necessary.
The workers, therefore, will build the secondary nest, either by enlarging the primary, or by starting another in a new location.
They usually choose tall trees, if it is feasible close to water bodies y with food nearby. But we can also find them in dormers and hidden areas of some buildings, abandoned factories, etc.
When they build their nests in the trees, in spring and summer it can be difficult to see them with the naked eye, despite its large size, due to the foliage. However, there are methods to locate and identify them. We tell you here.
Why 2020 will be a year of expansion of the (Asian) velutin wasp?
The expansion of the velutina (Asian) wasp in recent years has already been more than remarkable, since arrived in France in 2004. It is believed that he entered through the port of Bordeaux, in a shipment.
From then on, all the velutin wasps out there in Europe they derive from a single queen. So a single specimen started a massive chain of spread, first spreading to Navarra and the Basque Country (Spain).
Various studies show that the expansion capacity of the velutin wasp is about 100 km radius per year. At this rate, in addition to possible displacements it may have through other means (accidental transport of specimens), the spread throughout the European territory will be rapid and massive.
The expanding capacity of the velutin wasp is about 100 km radius per year. Added to possible displacements (Services accidental)
But… Why 2020 will be a year of expansion of the velutin wasp (Asian)? What sets it apart from other years?
The answer is simple, with two words: Pandemic. Coronavirus
Due to the current situation of pandemic with the new coronavirus, of affectation to human beings, SARS-CoV2 (COVID19), the world population, even at different rates, must have entered confined state.
This situation has caused a global break at the commercial level. And, although pest control companies have had the authorization to operate, the demand for preventive treatments in this regard has fallen dramatically. This has been because customers have been inactive or focused on other more relevant issues.
This is the reason why the wasp's expansion is expected to be much stronger this 2020. Since no preventive treatments have been performed of capture of queens by trapping. Y primary nests have not been removed, allowing queens to advance in the growth and multiplication of their offspring.
What solutions do we have to combat the velutin wasp (Asian)?
As a comprehensive pest management company, we can provide solutions so much preventive, , the reactive. However, given that the current situation has limited the first of these two options, the second will be the most favorable in the coming season.
So in the coming months, our work will focus on two aspects, for those clients who may need it. These will correspond to the search or detection and the other at treatment.
For this we will use our drones, prepared to perform both sequences. Detecting nests, even when they are hidden in the foliage. And applying the treatments, wherever they are located.
Our telescopic pole drone will reach places traditional recondite y tallest trees, applying the treatment in a localized way and respecting the biodiversity of the area.
It will be the only formula to try to keep the plague at bay and not increase its uncontrolled expansion.
But not everything is negative, we want to take advantage of the end of this article to highlight the incredible signs of recovery that are reflected in the environment. The natural surroundings are radiant. While it is true that weed growth in certain areas can be somewhat dangerous in the face of the hot season, it is a luxury to see the green explosion. How rivers flow down with crystal clear waters and how birds move to places where it was previously unthinkable to see them, much less hear them sing. We must reflect and act before this ... don't you think?
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Author
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Jordi Casal He is an environmental consultant with over 15 years of experience in the analysis and application of sustainable solutions for land management, pest control, and ecological transition. A graduate in Environmental Sciences from the Autonomous University of Barcelona, he has developed his career at the intersection of technology, environmental legislation, and public administration.
It specializes in the integration of innovative tools such as drones, remote sensors and data platforms to strengthen policies for prevention, ecological restoration and environmental health, both in agricultural and urban areas.
He has advised local and regional governments on the design of invasive species control plans and collaborates with specialized media outlets as a communicator and analyst of new green technologies. His approach combines science, regulations, and strategy, always aimed at achieving a balance between productivity and conservation.
