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

  • Water safety experts warn of dangers of outdoor swimming as heatwave grips UK

    At least nine people have died in recent days as people have tried to cool off in Britain’s waterways

    Water safety experts have warned about the dangers of outdoor swimming after a number of drownings in recent days as people try to escape soaring temperatures by cooling off in rivers, lakes, reservoirs and other bodies of water.

    Emergency services have reported at least nine deaths because of water-related incidents in the past few days, seven of them young people, as Britain’s heatwave sends crowds of people to the seaside and other swimming spots.

    Continue reading...

  • ‘Planetary destruction on fast-forward’: witnessing the disappearance of Indonesia’s ‘eternity glaciers’

    Researchers racing to document Oceania’s last tropical glaciers found the remaining ‘eternal snow’ in Indonesia’s West Papua region has lost almost all its ice

    An expedition to document the end days of the last tropical glaciers in Oceania has revealed sombre footage of “planetary destruction on fast-forward”.

    The once-mighty ice sheets on Puncak Jaya, a mountain surrounded by dense rainforests in West Papua, Indonesia, have survived beyond projections they would disappear by 2026 but have shrunk to a fraction of their original size.

    Continue reading...

  • Huge rise in factory-style dairy farming of ‘battery cows’ in UK as costs rise

    Investigation finds number of dairy farms where cows cannot go outside has more than doubled since 2015

    There has been a huge rise in factory-style dairy farming of “battery cows” in the UK as farmers struggle with increasing costs and face selling milk at a loss.

    The number of intensive dairy farms that permanently confine some of their cattle indoors has more than doubled in the past 10 years, an investigation by the Bureau of Investigative Journalism (BIJ) has found. Data suggests there are now at least 180 dairy farms where cows have no access to the outdoors, up from about 70 in 2015.

    Continue reading...

  • Blossoming among spoil heaps: how 1,000 years of lead mining gave birth to banks of pansies and pennycress

    Calaminarian grassland is a rare habitat where plants thrive in soils contaminated by heavy metals. But should these toxic meadows be protected or allowed to fade away?

    At first, the small purple flowers are hard to spot in the weak May sunshine. Slowly the drifts of delicate mountain pansies, along with the white rosettes of alpine pennycress, begin to jump out, scattered across an area little bigger than a football pitch, on the banks of the River Allen in Northumberland.

    This is a pocket of calaminarian grassland, an increasingly rare habitat where specialist plants called metallophytes have adapted to live in soils deeply contaminated by heavy metals, the legacy of more than 1,000 years of lead mining.

    Continue reading...

  • Climate crisis is accelerating antibiotic resistance across world, study says

    Experts say climate change linked to 10% rise in salmonella antibiotic resistance genes between 1940 and 2023

    The climate crisis is accelerating a global increase in antibiotic resistance that poses a serious threat to human health, experts have said as figures show a rise in salmonella antibiotic resistant genes.

    Antibiotic resistance is one of the fastest-growing threats to global health. It can affect people of any age in any country and already kills more than 1 million people a year, according to estimates.

    Continue reading...

  • Country diary: Perilous puffins and a plucky underdog | Mya Bambrick

    Swanage, Dorset: While the seabirds here make the headlines, my eye is drawn to the unassuming rock pipit and its accelerating song

    It’s a stunning evening for a walk at Durlston Country Park. The position of its headland on the south-west coast of England makes it a fantastic place to watch bird migration in action. As I walk along the coastal path, enjoying the panoramic sea views, barn swallows arrive from across the Channel.

    Below is a cacophony of sound coming from the cliff edges; this part of the Jurassic Coast is home to a breeding colony of seabirds, with last year’s survey recording 1,377 guillemots, 179 razorbills, 12 fulmars and just six puffins.

    Continue reading...

  • ‘I’m throwing everything at it’: one young man’s search for a job in Britain’s ‘worklessness capital’

    High unemployment and a lack of support mean life can be tough in Grimsby, but 19-year-old Cohen is determined to make the best of life in this coastal town

    It’s mid-afternoon in the Lincolnshire seaside town of Cleethorpes and Cohen is sitting in the back seat of a car putting on an Easter bunny outfit. A group of teenagers nearby stare in amusement. Cohen isn’t fazed. He is hoping we can take some new photographs that he can use to advertise his mascot business for the upcoming holidays.

    Cohen, 19, lives with his parents a couple of miles down the road in neighbouring Grimsby and set up Co Co Mascots last year as one of his many attempts to find work. People can hire him in one of the outfits for birthday parties, events and doorstep surprises for children. He’s done a few paid gigs so far, which has been a boost for his confidence, he says, but what he really wants is a permanent job.

    Cohen, who is looking for a permanent job, makes money as a mascot at birthday parties and events

    Continue reading...

  • Lawnmower hum: why the sound of the summer could cost you £5,000

    For some it’s ‘the music of May’. For others, it’s an antisocial irritation. But wherever you stand, be careful – or you could fall foul of the law


    Name: Lawnmower hum.

    Age: Getting steadily louder since 1830.

    Continue reading...

  • Power to the people: how ‘balcony solar’ could help fight rising US utility costs

    More Americans are using small solar panels in their back yards or balconies as a clean way to cut their electric bills

    If you feel like your electricity bill just keeps climbing, you aren’t imagining it. Since 2020, US residential energy prices have surged by about 30%, making power the largest household energy expense behind gasoline, according to the US Energy Information Administration.

    But for residents like Alex Curtis, the days of feeling powerless against rising costs are coming to an end. Curtis is waging a war on his electric bill, and his new weapon of choice is a lightweight, thin-film solar panel.

    Continue reading...

  • I stopped checking the weather forecast – and got a series of wonderful surprises

    Like so many Britons, I usually consult a weather app before venturing out of the house – and often cancel plans if I don’t like what I see. Here’s what happened when I went cold turkey for a week

    When I heard on the radio that more than half of British people would consider cancelling an outing if they saw a 40% chance of rain all day on their weather app, I felt seen. I, too, am a slave to my app. Not that I would ever make a decision based on one whole-day percentage. I pore over three-hourly breakdowns for chances of rain versus minutes of sunshine. If rain is on the cards, I check the probable millimetres. Less than one? I may well throw caution to the wind. Speaking of which, wind speed and direction must also be considered, along with overall and “feels like” temperatures. For the cherry on top, I’ll compare notes with a loved one’s app if they use a different one, quietly mistrusting theirs, and simmering in silent rage if theirs wins.

    I’ll admit, though, that my compulsion to check my app (I long ago chose WeatherPro, which I knew nothing about, but liked its layout and name) is borderline neurotic; I fret over probabilities and outfit appropriateness, when I could simply step outside for real-time hyper-local accuracy. I can lose procrastinatory hours consulting long-range forecasts, or checking the weather in Melbourne (where my sister lives) and holiday destinations I have no immediate plans to visit.

    Continue reading...

Novosti: Cybermed.hr

Novosti: Biologija.com

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