Pamplona is being invaded by thousands of white moths. The funny thing is that this is the only harmless part of the problem
In recent days, there is a specific type of Navarrese videos that do not stop roaming the internet: storms of white moths invading entire houses, covering terraces and “taking” rooms. We are talking about white butterflies about four centimeters long that voraciously seek any point of light. The result is chairs, tables and columns, floors, ceilings and walls completely “upholstered” by them. I said “videos”, yes; but the word I was looking for was “nightmares.” And the funny thing is that this is the only part of the process (of the boxwood moth cycle) that is not really a problem. What is happening? Nothing new is actually happening. As predicted for weeks, the boxwood moth (Cydalima perspectalis) has hatched en masse in the Pamplona region, coinciding with the first heat stroke of the summer. It is not only that, as the local press remembersthese moths have caused problems before. It is that in the 2018-19 season caused a decline in the ‘bojedales’ of Atlantic Navarra which put the entire botanical community in the north of the country on alert. In other words, the new thing is the videos: the problem comes from further away than it seems. I mean, it’s a problem, right? The curious thing is that the moth (about 4 cm wingspanwhite and with nocturnal habits) is not usually so. In its adult phase it does not eat boxwood, It is not stinging, it is not dangerous for people or pets. It is very scandalous and somewhat annoying, but little more. The real problem is caterpillars and, as far as we are talking about moths, the damage has already been done. A sentence that already lasts 20 years. The caterpillars are monophagous. That is, they only eat boxwood; But, in addition, they eat it in a big way: they gnaw the leaves until the nerves are stripped. And it shows: according to the Ministry, after two years of ‘defoliation’ 72% of boxwoods do not resprout. It has been 20 years since the plague arrived in Europe and about 12 that arrived in Spain. However, today (and only in Catalonia) there are already 180,000 hectares affected. A third of everything in Catalonia. And now what? Little now. As I say, moths are annoying, but they are not dangerous. The authorities trust that it will be achieved a natural ecological balance that keeps the boxwood alive. The problem is that the climate works against us: if the heat continues to rise we cannot rule out several generations a year. And that would compromise everything. Image | Denis Chanter In Xataka | We are on the verge of the first heat wave of the year: an anomaly of up to 15 degrees never seen since 1950