Eco Hvar

Kemijski pesticidi: da li su potrebni?

Postoje li alternative kemijskim pesticidima? Da, naravno.

Leptir i sinerarija Leptir i sinerarija Foto: Vivian Grisogono

U poljoprivredi mogu biti pesticidi istisnuti na razne načine kroz prirodnija sredstva za suzbijanje neželjenih biljaka, biljnih bolesti i insekata. Postoje razne metode za kontrolu insekata, uključujući i jedan patentiran u 2006. godini, koji koristi gljive u zaštiti usjeva od insekata. Hvar ima bogatstvo biljaka, koje se mogu pripremiti kako bi se mogli iskoristiti za ekološku poljoprivredu. Ne zaboravljajući, da je tradicionalna metoda suzbijanja korova u vinogradima bila sadnja graha između vinove loze. Dakle, umjesto grožđa isprepletenog opasnim herbicidima, vlasnik je dobivao dva čista zdrava usjeva. Ovce su uvijek dobro obavljali svoj zadatak, da održavaju maslinike bez korova. Ekološka poljoprivreda uključuje pošten fizički rad, kao i razumijevanje toga, kako biljke rastu i u kakvoj su interaciji sa okolišem. Ekološke metode su u konačnici znatno jeftinije od kemikalija.

Košenje korova. Foto: Vivian Grisogono

Kada sam preuzela svoja vlastita polja prije desetak godina, onih nekoliko stabala – četiri masline, dvije smokve, jedno jadno stablo badema – bili su poprilično ugušeni nekontroliranim, divljim raslinjem (ok, korovom za neke) starim nekoliko godina. Polja su pokošena i prekopana dva puta kako bi se vratio red. Ručno čupanje korova i košenje je od tada uvijek bilo dovoljno za održavanje takvog reda. Nikada nisam koristila pesticide ili umjetna gnojiva. Neka područja su ostavljena tako ‘divlja‘. Koje su prednosti? Mogu sigurno jesti svo bilje, koje nikne iz zemlje, kao i plodove stabala. Jako se veselim kada se pojave moje omiljene divlje biljke, aromatično bilje, komorač ili moja orhideja.

Tragopogon, prekrasna divlja biljka. Foto: Vivian Grisogono

Postoji čak i raznoliko životinjsko carstvo, fazani, fascinantni insekti i tragovi drugih zanimljivih bića. Moja stabla proizvode zadovoljavajuće rezultate, savršene za moje potrebe. U 2016. godini su moje masline imali lijepih 15% prinosa, moj najbolji prinos do sada. 

Ekološki uzgoj, zaštita od korova uz pomoć folije. Foto: Vivian Grisogono

Komercijalni poljoprivrednici obično tvrde, da im pesticidi štede vrijeme. To je vrlo sporno. Kemijski pesticidi nisu efikasni, osim kratkoročno. U svakom slučaju, postoji stalna i sve veća potražnja za organski uzgojenom hranom, kako potrošači postaju svjesni zdravstvenih pogodnosti takve hrane. Hrvatska ekološka poljoprivreda je žalosno mali sektor, ali uz postojanje sve većeg broja ljudi, koji su spremni kupovati organski uzgojenu hranu, i ovaj sektor je u porastu. Turisti na Hvaru očekuju, da će pronaći svježe organske proizvode. Njihovo razočaranje je štetno, ne samo financijski. U svakom pogledu, isplati se uzgajati organski.

Što se tiče komaraca, postoje li bolje načine nego prskanje insekticidima? Prirodno! Nije to tako davno, kada nikakvi tigrasti komarci nisu postojali, ali bilo je dovoljno šišmiša, koji su jeli doslovno stotine komaraca kad god bi imali priliku. Ako bi smo uspjeli opet stvoriti uvjete za šišmiše i druge predatore za komarce, bio bi to veliki napredak.

© Vivian Grisogono MA(Oxon), 2016.

Prijevod Ivana Župan

Video sadržaj

na vrh članka
Nalazite se ovdje: Home opasni otrovi Kemijski pesticidi: da li su potrebni?

Eco Environment News feeds

  • Farage’s Clacton-on-Sea constituency worst ‘tree desert’ in England, research shows

    Woodland Trust also finds significant north-south divide in tree cover, leaving many people at risk of poor health

    Nigel Farage’s constituency of Clacton-on-Sea is a “tree desert”, leaving people more exposed to air pollution, poorer health, lower life expectancy and the impact of rising temperatures, according to a new report.

    The Essex town is rated the worst-performing for equal access to trees in England, with the highest proportion of urban residents – 98.2% – living in neighbourhoods with critically low access to trees.

    Continue reading...

  • UN members prepare for pivotal vote on landmark ICJ climate justice ruling

    If resolution is passed, governments will recognisetheir legal responsibility to cut greenhouse gas emissions

    The UN’s willingness to tackle the climate crisis in a fair and legal way will be tested next week during a critical vote of the UN general assembly in New York.

    Every member state is being asked to back a series of landmark findings on climate justice from the international court of justice (ICJ) as part of a new political resolution. If passed, it will mean governments recognise they have a legal responsibility to cut their greenhouse gas emissions, including tackling fossil fuels.

    Continue reading...

  • Choughs reappear at Tintagel Castle in Cornwall after decades of absence

    King Arthur is said to have transformed into a chough when he died, its red feet and beak representing his bloody end

    Decades after disappearing from the jagged cliffs around Tintagel Castle on the coast of north Cornwall, a bird with legendary connections to the area has returned.

    The custodian of Tintagel, English Heritage, and local ornithologists have declared that choughs – charismatic corvids with red beaks and feet – are back.

    Continue reading...

  • Typical English roast dinner potentially ‘drenched’ in 102 pesticides, says report

    Greenpeace finds cocktail of pesticides including seven banned in EU may have been used on seven categories of vegetables and soft fruit

    It is a beautiful early summer Sunday afternoon and you have stopped for a pub lunch. A waiter sets down a roast served with carrots, peas, parsnips, potatoes and onion gravy, and then for pudding, strawberries and cream. It feels like the perfect rustic meal to accompany a day in the country.

    However, a report by Greenpeace, published on Thursday, has found that the ingredients of the traditional Sunday roast have potentially been treated with a cocktail of more than 100 pesticides. Data from the Fera pesticide usage survey for 2024, showed 102 – including seven banned in the EU – were used on seven vegetable and soft fruit categories.

    Continue reading...

  • Roots of resilience: the experts working to bolster apples against the climate crisis

    Scientists are focusing on improving apples’ resilience after stressors like wild temperature swings and drought

    Terence Robinson still remembers the Valentine’s Day Massacre – of 2015, not 1929.

    For the Cornell University horticulture professor, the term doesn’t conjure up Tommy guns and Al Capone’s Chicago. Instead of a gangster, the culprit in Robinson’s massacre was the weather. And its victims were the apple orchards of the north-eastern United States.

    Continue reading...

  • Why the weather was on no one’s side in general strike of 1926

    A warm spell mitigated some of the effects of the strike but colder weather would have taken their own toll

    May 1926 is remembered in Britain for the general strike, when the TUC called out millions of workers in support of miners who had been locked out while fighting a pay cut.

    The strike, which lasted from 3 May to 12 May, took place during a spell of relatively mild weather with little rain. Transport was disrupted but fine conditions allowed many people to walk or cycle to work. There was a shortage of coal but this was mitigated because there was less need for heating. The TUC, fearing legal action and doubting the strike could be sustained, called it off after nine days.

    Continue reading...

  • Country diary: This weary traveller has escaped the hunter’s gun | Sarah Lambert

    Maxey Cut, Cambridgeshire: There’s so much precious wildlife around this old flood-relief channel, including sea trout and eels. But I’ve come to hear the purr of the turtle dove

    The morning air is moist and utterly still. Above the flood bank, dappled grey cirrocumulus parts to a clear blue. Birds sound from every side: the cuckoo’s insistent call over a chorus of warblers – the sedge warbler’s machine-gun rattle, the willow warbler’s falling cadence, and, piercing them all, the explosive eruptions of a Cetti’s warbler buried deep in cover.

    But it is the turtle dove that I have come to hear: that low, tender purring, almost lost in the greater chorus. When it comes, my heart lifts. I find a lone bird on a telegraph wire, one of its favoured perches. Through the binoculars, I make out a pink-grey breast, a neat black-and-white collar, and rust‑red feathers on the back, each one finely marked with black.

    Continue reading...

  • How a kindergarten teacher became the accidental guardian of 200 king penguins

    When the birds started nesting on her land at Useless Bay, Chile, Cecilia Durán Gafo decided she would protect them from people and predators

    Five pairs of rubbery feet carry velvet-sheathed black-and-white bodies towards the rope line separating the king penguins from the dozen or so visitors, who look on in awe. As these emissaries shuffle over, a hundred of their cohorts parade on a nearby bank, splashing around in the water and regurgitating food into their chicks’ open beaks.

    The king penguin (Aptenodytes patagonicus)makes its home almost exclusively on islands in the Southern Ocean. But it has been coming to this wind-battered bay in southern Chile’s Tierra del Fuego region for hundreds of years, probably because its shallow shores offer protection from marine predators and humans.

    Continue reading...

  • Go big or go home: how The Lost Giants revived the ancient art of goliath-making

    Ever fancied creating your own enormous effigy? One Cornish art collective has reinvigorated the practice – and now they want to draw on the public’s skills, too

    This New Year’s Eve, environmentalist and author Lisa Schneidau did something she had never done before. She welcomed in 2026 with giants. “At a certain time of the evening, they started appearing from all over the town. Then everyone flooded out of their houses and congregated into a massive procession of giants and lights and drums and music. It was absolutely extraordinary.”

    Schneidau’s fairytale experience happened in Lostwithiel, the Cornish home town of the art collective The Lost Giants (TLG), a group of craftspeople and artists reviving the British tradition of making giants and beasties and goliaths. The giants she celebrated with were made of wooden frames and cloth, papier-mache and card, but were full of life.

    To apply for a giant, go to The Lost Giants website

    Continue reading...

  • Yorkshire’s WallFest launched to protect crumbling boundary wall of ‘world’s first nature reserve’

    Pioneering environmentalist Charles Waterton enclosed his parkland and lake near Wakefield in the 1820s

    Over four years in the 1820s, Charles Waterton built a 9ft-high, 3-mile-long wall around the parkland and lake of Walton Hall. The fox- and poacher-proof boundary enclosed what could be the world’s first nature reserve, completed in Yorkshire 200 years ago.

    Waterton, an eccentric, controversial and pioneering environmentalist, built nest boxes, special banks for sand martins and innovative bird hides, and offered local people sixpence for every hedgehog they brought into his reserve.

    Continue reading...

Novosti: Cybermed.hr

Novosti: Biologija.com

Izvor nije pronađen
Copyright © 2026 Eco Hvar. Sva prava zadržana. Developed by Orion Informatika.