Jun 14, 2021 at 8:04 AM CEST
The black fly has intensified its presence in Spain in recent times and that multiplies the inconvenience to the inhabitants, particularly with the arrival of excessive temperatures. The quantity of individuals who come to the well being companies victims of the bite of this insect is growing.
Not like different bugs, corresponding to the tiger mosquito (which prefers stagnant water), the black fly is extra snug in clear water. Rivers with aquatic crops are one of their favourite habitats.
However the enhance in irrigated areas additionally favors the implantation of the black fly, which, removed from being an invasive species, is indigenous, though its populations have elevated significantly.
The physician in Pharmacy and graduated in Human Diet and Dietetics and Optics Marián García, writer of the weblog boticariagarcia.com, explains that the black fly bite is truly a bite, since “they’ve a saw-shaped mouth, with which they make a wound in the pores and skin in which they inoculate saliva, leaving as a reminder a central pink level accompanied by irritation & rdquor ;.
However “this saliva is not simply any spit. It is designed to the millimeter and incorporates anesthetic, vasodilator, anticoagulant and antithrombin substances, which act like a smoke bomb: on the one hand, they be certain that the host doesn’t really feel ache at the time of the bite, however at the similar time they stop blood clotting and promote elevated blood circulation in the & rdquor; zone, provides García.
This anesthesia won’t final lengthy, since usually, at dusk, it begins to harm or itch, and may even trigger edema.
What repellent to use to keep away from being bitten?
Earlier than speaking about the advisable actions in case of struggling one (or a number of) bites, it is preferable to touch upon what to do to keep away from reaching that time. As at all times, prevention is the finest answer.
“Like to maintain their cousins, mosquitoes and tiger mosquitoes at bay, the use of DEET (diethyltoluamide) is really useful, “On this case at excessive concentrations, not less than 45% or larger & rdquor ;. “The biocide citriodiol is also efficient at excessive concentrations & rdquor ;, provides the physician.
There are lots of industrial manufacturers to go to. As we are able to see, there is no particular product for this insect.
Past repellants, you’ve to “Keep away from strolling close to river beds the place black flies dwell in the early morning and afternoon, which are his favorites, and once we do, let it’s with boots, socks, lengthy pants and a long-sleeved shirt & rdquor ;, he provides. Higher if they’re gentle colours to higher observe the potential presence of bugs on us.
What to do in case of a sting?
First, keep away from scratching the wound, as a result of it can solely make issues worse. As well as, the physician advises “use ice to lower irritation & rdquor ;. Likewise, aside from utilizing emollient lotions or ointments, the use of anti-inflammatories, antihistamines or corticosteroids may be evaluated, relying on the signs and traits.
If allergic reactions are noticed, particularly in locations aside from the bite, corresponding to swelling of the lips or issue swallowing, you need to go to the emergency room.
Essentially the most optimistic issue about the black fly is that it doesn’t normally transmit critical illnesses. Solely in nations distant from Spain can they develop into vectors of a parasite that causes the so-called river blindness.
Marián García factors out that the most advisable strategies to keep away from the implantation of this plague in Spanish rivers are the organic controls of larvae utilizing spores of the bacterium Bacillus thuringiensis serotype israelensis. “It is a bioinsecticide that is ‘eaten’. As soon as inside the larva, it causes osmotic imbalances that break the wall of the gut producing septicemia and inflicting demise “, he explains.
In distinction, chemical controls utilizing pesticides “are typically discouraged as a result of they’ve restricted efficacy and are usually not selective.”
It might curiosity you: The plague of the black fly and its highly effective bite is spreading through Spain