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

  • UK must stockpile food in readiness for climate shocks or war, expert warns

    Prof Tim Lang says country produces far less food than it needs to feed population and is particularly vulnerable

    The British government should be stockpiling food, according to a leading expert on food policy, as it is not prepared for climate shocks or wars that could cause the population to starve.

    Prof Tim Lang of City St George’s, University of London said the UK produced far less food than it needed to feed itself, and as a small island that relied on a few large companies to feed its giant population, it was particularly vulnerable to shocks.

    Continue reading...

  • Humanity heating planet faster than ever before, study finds

    Researchers identify sharp rise to about 0.35C every decade, after excluding natural fluctuations such as El Niño

    Humanity is heating the planet faster than ever before, a study has found.

    Climate breakdown is occurring more rapidly with the heating rate almost doubling, according to research that excludes the effect of natural factors behind the latest scorching temperatures.

    Continue reading...

  • A century of care: Wildlife Trusts mark 100th birthday with woodland project

    First of the trusts, formed with 12 people in a Norfolk pub in 1926, buys swath of farmland to restore to nature

    The place where Norton Wood once stood is now a vast field of decaying wheat stubble. The ancient wood was grubbed up during the second world war. No trace of it remains – on the surface, at least. This ghost in the landscape lives on only in the name of the local village: Wood Norton.

    But trees will soon be bursting upwards again and the wood will regrow after Norfolk Wildlife Trust celebrated its 100th birthday by buying a swath of farmland to revive for nature.

    Continue reading...

  • Country diary: Our patch of snowdrops is part of the family | Mark Cocker

    Buxton, Derbyshire: Their ‘parents’ were planted 50 years ago by my late mother. Yet we all have a remarkable connection to these uplifting flowers

    I wonder if nature has found a way to compensate us for the dreariest winter I can recall, because the snowdrops this year have been unbelievable. I’m seeing them everywhere – along road verges, on village greens, with vast white sheets across churchyards and especially in old gardens with driveways and mature trees around their margins.

    I have a small snowdrop patch under our crab apple and while they’re modest in number, they are, in a way, more than flowers. My mother first planted those same bulbs (or their “parents”) in her garden, which is half a mile from here, in the 1970s. When she died a decade ago, I took them first to our old house and now to this property. I’d actually forgotten the last transfer: a scoop of both the bulbs and surrounding soil, a short car journey, then a hasty reinterment in a hole on this south-facing slope. Now here they all are, up in the light, sparkling and brimful of this seasonal moment, but also laden with memories of my wonderful Ma and her love of gardens. In a way, her snowdrops are now family.

    Continue reading...

  • Tackling air pollution should be part of government work to cut cancer rates, scientists say

    New European Code Against Cancer calls on politicians to phase out use of fossil fuels in homes

    Cutting air pollution should form part of government strategies to reduce cancer rates, the European Code Against Cancer has recommended.

    The code previously focused on advice to help people to reduce the air pollution that they breathe. But, for the first time since its launch in 1987, it has given clear direction to governments.

    Continue reading...

  • The Scottish avalanche forecasters – photo essay

    Photographer Murdo MacLeod patrols the snow with members of the Scottish Avalanche Information Service, which has for several decades published a vital daily avalanche forecast for mountain areas

    Scottish avalanches are back. More than 200 have been recorded this winter, against the previous year’s record low of 42. The worst season for fatalities was 2012-13 when eight people died, four of whom were buried in deep snow when an avalanche struck without warning while they descended Glen Coe’s Bidean nam Bian.

    Fortunately, so far – despite one person being carried a distance down Ben Nevis and two people falling through cornices and triggering slips – there have not been any confirmed avalanche deaths, though one person is still missing on Ben Nevis. The search goes on in and around the sites of recent avalanches.

    A mountain rescue team looks for a missing climber in Observatory Gully on the north face of Ben Nevis, an area where there has been a succession of avalanches

    Continue reading...

  • Mass stranding of whales on Scottish beach caused by loyalty to their pod, report finds

    The 55 pilot whales, which had to be euthanised, had been following a female having a difficult birth, scientists believe

    The mass stranding and death of 55 whales on the Isle of Lewis in 2023 was caused by the mammals’ loyalty to their pod, a report has concluded.

    It had been thought that the unusually large incident on Tràigh Mhòr beach, Tolsta, could have been caused by trauma, disease or acoustic disturbance from military or industrially generated noise.

    Continue reading...

  • How green is your milk? We compare the environmental cost of dairy and plant-based options

    Many Australians are choosing oat, almond and soy over cow’s milk – but which choice is the most sustainable?

    • Change by degrees offers life hacks and sustainable living tips each Saturday to help reduce your household’s carbon footprint

    • Got a question or tip for reducing household emissions? Email us at changebydegrees@theguardian.com

    Oat cap, skinny flat white, almond chai, soy matcha. Everyone has a different milk preference: cow, skim, lactose-free, oat, almond, soy, goat or camel.

    Milk choices may be due to environmental reasons, dietary concerns or just taste preferences.

    Continue reading...

  • You be the judge: should my eco-conscious husband park his dislike of flying?

    Jenny wants to spread her wings and see the world, but Teddy is happy at home. Where do they go from here? You decide

    •Find out how to get a disagreement settled or become a juror

    I worry about my carbon footprint, but you can’t go everywhere by train and I want to see the world

    It’s not an environmental issue. I’ve just had my fill of flying anddon’t really enjoy being a tourist

    Continue reading...

  • ‘It creates a sense of belonging’: Brazil bets on hiking trails for conservation

    The country’s network of footpaths is growing – with hopes they will develop local economies and better preserve the environment

    Follow the yellow footprints along Brazil’s newest long-distance trail, and they will take you through lush green forests and sandy shrubland, past sweeping vistas and bizarre rock formations, into grottos and rural communities.

    Spanning 186km (115 miles) of paths once used by 19th-century merchants, the Caminhos da Ibiapaba is the first waymarked long-distance footpath in Brazil’s north-east region, adding to a growing network of hiking trails in the country.

    Continue reading...

Novosti: Cybermed.hr

Novosti: Biologija.com

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