Salvarea nu sta in vreun produs miraculos, ci intr-un… copac. De la Gradina Botanica din Bucuresti poate fi cumparat copacul care pe o raza de cativa zeci de metri alunga tantarii, mustele si alte insecte sacaitoare.
„Paulownia tomentosa” e un copac care, prin frunzele sale, emana un miros imperceptibil pentru oameni, dar ucigator pentru insecte. Asta inseamna ca pe o raza de cativa zeci de metri insectele nu se apropie. Biologul Mugur Mitache, de la Gradina Botanica, ne-a declarat ca acest copac provine din China si are avantajul ca se adapteaza foarte bine la conditiile climaterice de la noi. „Paulownia e la fel ca magnolia, infloreste prin aprilie si abia dupa ce ii cad florile apar frunzele. Poate inflori si de doua ori pe an, primavara si vara, daca nu e un an secetos. Numai dupa ce implineste cinci ani poate face flori. Plantarea e putin mai complicata si de aceea noi vindem lastari de 2-3 ani, cand au o inaltime de un metru si jumatate”, spune Mugur Mitache.
Pentru un bloc cu zece etaje ajung trei copaci.
Copacul poate fi plantat atat la curte, cat si in jurul blocurilor. Cum paulownia atinge o inaltime maxima de 15 metri, cativa pomi plantati in jurul unui bloc ii pot feri pe locatari de tantari toata vara. Cand infloreste are niste flori albe sau mov, ca niste clopotei. Are frunze mari de 12-25 centimetri. Problema este ca, avand radacini foarte viguroase, doi astfel de pomi nu pot fi plantati la o distanta mai mica de 20 de metri unul de celalalt si nici la mai putin de zece metri de cladiri. „Radacinile pot strapunge fundatiile cladirilor, atat sunt de mari. In schimb, lemnul este usor ca pluta. Dar pentru un bloc normal de zece etaje, doi sau trei copaci sunt suficienti”, spune Mugur Mitache. Ingrijitorii de la Gradina Botanica povestesc cum celebrul om de afaceri Cristian Tantareanu si-a cumparat cateva exemplare de paulownia pentru a le planta in jurul lacului. „astfel si-a format o adevarata perdea contra tantarilor”.
Asadar, un lastar de 2-3 ani cu o inaltime de un metru si jumatate costa 250.000 lei. In functie de „varsta” si inaltime, copacul ajunge sa coste si 1,5 milioane de lei (cei de 4-5 metri).
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