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

  • Norwegian fish farms polluting fjords with waste likened to ‘raw sewage of millions of people’

    Exclusive: ‘Fish sludge’ in coastal waters now has nutrient levels equivalent to those in untreated effluent of country the size of Australia, report finds

    Norwegian fish farms are filling fjords and other coastal waters with nutrient pollution equivalent to the raw sewage of tens of millions of people each year, a report has found.

    Norway is the largest farmed salmon producer in the world, and nutrients in fish feed are excreted directly into coastal waters. Analysis from the Sunstone Institute found that Norwegian aquaculture released 75,000 tonnes of nitrogen, 13,000 tonnes of phosphorus and 360,000 tonnes of organic carbon in 2025.

    Continue reading...

  • ‘It’s a special tree’: campaign to save mother of beloved bramley apple for nation

    Appeal launched to buy Nottinghamshire cottage, where tree was planted in 19th century, and turn it into heritage centre

    Campaigners have launched an appeal to try to save for the nation the mother tree of perhaps the most popular cooking apple in the world.

    The original bramley apple tree, which grows in the garden of a cottage in Southwell, Nottinghamshire, is for sale, with the cottage put on the market by its owner, Nottingham Trent University.

    Continue reading...

  • Our Land review – right-to-roam campaigners offer bacchanalian antics and a heartfelt message

    Orban Wallace’s documentary avoids big clashes between landowners and campaigners in favour of wide-ranging exploration

    Orban Wallace’s film about the right-to-roam movement shows us a campaigning group with a simple, reasonable aim: to give walkers in England and Wales the same rights that people have in Scotland, courtesy of the Scottish Outdoor Access Code, brought into being by the Land Reform (Scotland) Act of 2003. There, walkers have the right to temporary, non-motorised access – which is to say walking, cycling and camping, carried out responsibly – to most land, public or private. These rights have now existed for some time without the apocalyptic end to the countryside as we know it.

    Whether some in the right-to-roam movement in England want something more than that, or are prepared to protest more vehemently than simply organising peaceful mass trespass events, is another question. The film interviews landowners such as Francis Fulford, who has long been the media’s favourite outspoken reactionary toff, a sort of posh version of Viz Comic’s Farmer Palmer, snarling “Get off my land”. There are other, more thoughtful landowners, including Hugh Inge-Innes-Lillingston, who cheerfully admits how silly his name is, and is open to developing new ideas about managed access. As far as profiteering goes, I found myself thinking of a remark made by Tara Palmer-Tomkinson: “Land doesn’t really bring in a lot of money until they build a motorway through it.”

    Continue reading...

  • Saplings in prisons and bogs on military ranges: Labour’s plans for nature-friendly state land

    Exclusive: Minister says proposals show government’s ambition, as it faces unprecedented pressure from Greens

    Tree nurseries could be built at prisons, and military ranges could be turned into heathland or peat bogs as part of an ambitious plan to make government land more nature-friendly, the environment secretary has said.

    Speaking before elections this week in which Labour is under pressure from the Green party, Emma Reynolds said such projects showed the government’s intent in restoring natural habitats.

    Continue reading...

  • Country diary: Newts in the pond, commotion in the house | Mark Cocker

    Buxton, Derbyshire: A glimpse of gloop in the water, a hasty net purchase, and it was confirmed – palmate newts have moved in. But how long had they been there?

    It has been a source of excitement for weeks that we have found ourselves custodians of newts. Judging by the numbers present and the age of our pond, they have probably been here at least a decade. Yet neither our neighbours nor our predecessors at the address knew of any.

    I happened to notice a gloop of air rise at the pond surface. That glimpse triggered a few minutes’ scrutiny, and lo, there it was: a palmate newt. It led to a hasty net purchase. Several days later, at the first speculative sweep of the mesh, with which we had hoped to catch at least a single example, it came up with nine. They have been the talk of the house ever since.

    Continue reading...

  • Reform government could cause Truss-style chaos, says renewables industry

    Lobbyist Tara Singh says stripping projects of subsidy contracts would undermine investor confidence in UK

    Britain could be beset by levels of economic chaos last seen under Liz Truss if a Reform UK government were to fulfil its promise to strip renewable energy projects of subsidy contracts, according to the industry’s chief lobbyist.

    The anti-renewables policy put forward by Nigel Farage’s populist party would severely undermine investor confidence in the energy industry and across the wider UK economy, the new chief executive of RenewableUK said.

    Continue reading...

  • Fixing methane mega-leaks could boost energy stock amid crisis, report says

    International Energy Agency analysis shows methane leaks remained at near-record highs in 2025

    Methane emissions from the energy sector remained at near record levels in 2025, the International Energy Agency has concluded.

    Tackling the emissions could make billions of cubic metres of gas available to international markets, a top priority as the war in the Middle East squeezes energy supplies, the IEA said in a report.

    Continue reading...

  • As household bills soar, is it time for a ‘working-class climate agenda’?

    Group that worked with AOC and Bernie Sanders seeks to counter claim that climate policy is politically toxic

    Americans do not care about the climate crisis, only economic issues: that’s the message some wonks have put forth in the past year, as the Trump administration has dismantled environmental protections. But the shift away from climate is misguided, an influential group of progressives is arguing.

    “The climate crisis is a core driver of the cost-of-living crisis and instability we see across the economy,” says a new policy platform from left-leaning thinktank Climate and Community Institute (CCI).

    Continue reading...

  • The man who blew up a nuclear power station and disappeared

    In December 1982, South African Rodney Wilkinson walked four bombs into Koeberg power station – the crown jewel of the apartheid state – pulled the pins and then left on his bicycle. How did he do it?

    At 21, Rodney Wilkinson was the best fencer in South Africa: national champion in foil and sabre, second in epee. He had toured Europe and Argentina. He had not stood on the Olympic podium, because South Africa was banned. The apartheid state had taken that from him, along with everything else it took from everyone.

    One evening in August 1971, Wilkinson stood in the gym at the University of the Witwatersrand in Johannesburg, foil in hand. He was facing his coach Vincent Bonfil, a 25-year-old Englishman who had represented Britain as a reserve at the 1968 Mexico Olympics, and who was now in Johannesburg finishing a master’s thesis in metallurgy. They were working on a technique in which both fencers lunge simultaneously, and the one who reads the other’s move a split second earlier wins the point. They came at each other. Wilkinson’s foil caught the edge of Bonfil’s sleeve. There was a pop.

    Continue reading...

  • How to conserve your dragon – and avoid losing Australia’s most imperilled reptile for a second time

    Melbourne zoo’s new breeding centre hopes to safeguard the future of the critically endangered Victorian grassland earless dragon

    The dragons’ lair looks deceptively ordinary: a pair of pale green portables, tucked behind the reptile enclosure at Melbourne zoo.

    But the plain exterior belies its hidden treasures. Inside, dozens of Victorian grassland earless dragons, blissfully unaware of their status as Australia’s most imperilled reptile, are basking on rocks, gobbling up crickets or lapping up “dew”, expertly misted by their keeper Zac Harkin.

    Sign up to get climate and environment editor Adam Morton’s Clear Air column as a free newsletter

    Continue reading...

Novosti: Cybermed.hr

Novosti: Biologija.com

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