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?

Novosti: Ekologija.hr

  • Burnham urged to launch inquiry into unequal health impacts of air pollution

    Letter from 150 scientists, MPs and activists calls for action to protect lower-income and minority-ethnic communities

    The government must hold an inquiry into the unequal impacts of air pollution, 150 scientists, MPs and activists have urged.

    Research by the Institute for Fiscal Studies shows that across England, lower-income areas have persistently higher levels of air pollution than wealthier areas.

    Continue reading...

  • Can countries deliver on a deal to save the world’s plants and animals?

    Four years ago nearly every government on Earth agreed to protect nature. Now, as countries gather for Cop17, the pressure is on to follow through on those commitments

    Passersby could smell the dead fish before they saw them. In August, more than 3,000 pike, roach, carp and rudd were found lifeless along the River Wensum in Norwich. Some gasped for air in their final moments, desperate for the oxygen that heatwave conditions had depleted in the water. Investigators believe that the die-off was triggered by heavy rainfall that flushed through high concentrations of pollution at a time when wildlife were already struggling.

    The 45-mile (70km) chalk river is one of about 250 in the country. They are a geological accident almost unique to Britain – and one of Earth’s rarest habitats. They emerge from chalk aquifers and are home to species such as freshwater shrimp, otters and stoneflies, also providing drinking water for millions of people. But just 11 have formal protection, with many ravaged by sewage pollution and overextraction. The Norfolk river is one of the few that does have legal protection, but it is in poor ecological health.

    Continue reading...

  • Amelia Earhart researchers leave remote atoll empty-handed after ‘plane debris’ found to be a clump of trees

    Expedition was drawn to Nikumaroro after spotting what was described as a metallic glint in waters off uninhabited island

    A US expedition that voyaged to a remote Pacific island in the hope of solving the mystery of what happened to pioneering pilot Amelia Earhart has said an object they suspected to be her plane was a clump of washed-up trees.

    “Unfortunately, we weren’t able to find that smoking gun,” said Steve Schultz of Purdue University, standing on the sand in front of a blue lagoon on the atoll of Nikumaroro, about halfway between Australia and Hawaii.

    Continue reading...

  • Tap water no longer drinkable in Norwegian town as climate-related thawing releases heavy metals

    Warning for other Arctic communities as residents told not to use water in Longyearbyen in Svalbard, one of the fastest-warming places in the world

    Residents of a remote town in Norway that is in one of the fastest-warming places in the world have been told they must no longer drink tap water due to heavy metal contamination that scientists have linked to the thawing permafrost.

    Longyearbyen, in the archipelago of Svalbard, gets its main drinking water supply from a 1.5 mile-long (2.5km) dammed lake called Isdammen, or “ice pond”. Higher temperatures as a result of the climate crisis have thawed permafrost, leading to newly exposed bedrock leaching metals into the pond.

    Continue reading...

  • Country diary: At this time of year, an ancient urge to forage kicks in | Kate Blincoe

    Caistor St Edmund, Norfolk: Rosehips, sweet chestnuts, sloes – there’s an order and a rhythm to their gathering, tied to the season and folklore

    The government suggests stockpiling, and while tins and candles might prove useful, a more ancient urge kicks in for me at this time of year. Walking the hedgerows, the colours of jewels entice me, and my pockets fill with rosehips or glossy conkers. It’s ingrained. For a vast stretch of human history, we survived by foraging for food and medicine, even after agriculture became widespread.

    My blackberries are stashed in the freezer. Folklore advises picking them before Michaelmas on 29 September – or 10 October in old folklore, when the devil spits on them. It’s reasonable, thus avoiding mouldy or frosted fruit.

    Continue reading...

  • Seabird numbers bounce back in Solent region after 2022 avian flu wipeout

    Conservation work by RSPB has led to recovery of terns, gulls, plovers and oystercatchers on England’s south coast


    The colony of sandwich terns nesting at Pagham harbour, West Sussex, was completely wiped out by bird flu in 2022. But numbers have bounced back from zero to 756 breeding pairs in just three years after conservation work in the Solent.

    Continue reading...

  • A California town’s beaches are washing away. Can its residents turn the tide?

    Rapid coastal erosion threatens coastal homes and economies, and as Super El Niño rounds the corner, a town is reckoning with the reality of climate crisis

    San Clemente is one of southern California’s most picture-perfect beach towns – a capital of American surf culture since the 1950s. In two years, 2028 Olympic surfers will compete at Lower Trestles, a world-class surfing beach.

    But the town’s longtime cultural and economic driver, its beaches, are now under threat. As pounding waves driven by late-summer storms in the Pacific devour chunks of the California coastline, some of San Clemente’s beaches are growing narrower, the sand increasingly eaten away.

    Continue reading...

  • Core values: the Austrian scheme bringing forgotten apple varieties back to life

    Spar pilot scheme will test whether heirloom fruit can thrive in today’s commercial and environmental conditions

    Only about 10 of the 2,000 types of apples growing in Austria can be found in supermarkets among the polished, pristine fruit usually on display – a sad ratio according to fans of historic varieties being primed for a comeback.

    One of the country’s biggest retail chains has embarked on a pilot rollout of unusual and long-forgotten apples enjoyed in previous centuries, riding an international trend of reviving heirloom fruit and vegetables.

    Continue reading...

  • US workers facing deadly heat borrow from tomato pickers to win key protections

    As efforts to protect people from extreme heat stall, organizers are embracing an approach that targets major brands’ reputations

    “It’s the kind of heat that makes you feel like you’re being dehydrated, like your skin is drying out,” said Lucas Benitez, after harvesting watermelons with his sons and wife this summer. “The heat that we had 30 years ago is not nearly the heat that we have today.”

    This summer was the hottest on record in the US, and most workers in fields, greenhouses and unconditioned indoor facilities still do not have heat protections on the job, putting their health at risk as the climate crisis is expected to make extreme heat more frequent and intense.

    Continue reading...

  • More peas, please! 17 delicious ways to devour Britain’s most brilliant vegetable

    They’re healthy, versatile, sustainable and available. Yet pea consumption in the UK is at a 50-year low. Here are the curries, dips, pasta dishes and even cakes that could turn all that around

    It’s not good news for the pea farmers: pea consumption in the UK has fallen to a 50-year low. According to data from Defra, the average Briton ate just 37g of peas per week in 2025, down from 144g per week in 1975.

    Though a classic British staple, peas are not for everybody. Apparently only 22% of gen Z associate peas with Britain at all (which is patently ridiculous: 90% of the peas we consume in the UK are grown here, while we produce about 160,000 tonnes for freezing alone each year).

    Continue reading...

Novosti: Cybermed.hr

Novosti: Biologija.com

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