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Sticky trick: new glue spray kills plant pests without chemicals (www.theguardian.com)
submitted 7 months ago by girlfreddy@lemmy.ca to c/world@lemmy.world
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The insect glue, produced from edible oils, was inspired by plants such as sundews that use the strategy to capture their prey. A key advantage of physical pesticides over toxic pesticides is that pests are highly unlikely to evolve resistance, as this would require them to develop much larger and stronger bodies, while bigger beneficial insects, like bees, are not trapped by the drops.

The drops were tested on the western flower thrip, which are known to attack more than 500 species of vegetable, fruit and ornamental crops. More than 60% of the thrips were captured within the two days of the test, and the drops remained sticky for weeks.

Work on the sticky pesticide is continuing, but Dr Thomas Kodger at Wageningen University & Research, in the Netherlands, who is part of the self defence project doing the work, said: “We hope it will have not nearly as disastrous side-effects on the local environment or on accidental poisonings of humans. And the alternatives are much worse, which are potential starvation due to crop loss or the overuse of chemical pesticides, which are a known hazard.”

Link to the study

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[-] enbyecho@lemmy.world 2 points 7 months ago

I know there are great alternatives, but they all have higher labour requirements.

  1. Not necessarily - I'd argue any higher labor requirements are more than offset by the increased value the producer (ie higher margins); 2. So what. Modern capitalism can't tolerate that - this is very true. Because we have these very long complex food production chains that demand the lowest possible input costs in order to survive. But there is a way out and it doesn't require re-inventing capitalism: decentralization of production and promotion of smaller more diversified farms. This absolutely can be done and we know because we have been doing it, just not quite enough to offset the corporate forces of centralization. Small farms and farmer's markets need help and part of that is up to consumers to make the choice. Part of it is regulatory capture by big food corporations who have shaped our food chain to make sure that small farms are at a huge disadvantage.

On #1 - a diversified farm growing "speciality crops" (USDA speak for food we consume directly instead of commodities) will typically have margins >20% and can easily net $25k or more an acre. In commodities, even the highest net for almonds and pistachios might only get you $1.2-1.5k per acre. Many commodities like corn can have a negative margin and only survive through subsidies.

All this matters because farmers have literally been digging their own graves and become little more than share croppers. It's so hard to be viable direct to consumer there is little choice - a really classic example being chicken production where it's virtually impossible to be an independent producer because companies like Tyson have made sure all the regulations favor them. So now they'll loan you the money for facilities you'll never pay off and you have no choice but to sell to them at whatever price they set.

[-] Hacksaw@lemmy.ca 2 points 7 months ago

I like what you're saying and I agree with it fundamentally. I wish it is possible to have the majority of crops be direct to consumer. I KNOW everyone is happier when they have a real personal relationship with the products they consume. That's even part of what marketing abuses when it anthropomorphises brands.

I'm personally pessimistic on that front though, I think it can't happen in modern capitalism for two major reasons. Number one, I don't think the majority of the population of Western nations, let alone the world, can tolerate even a moderate increase in food prices without creating massive instability. I know what the "middle men" jack up prices considerably on almost everything, but the staples: wheat and meat in my part of the world, simply cannot be sold cheaper by smaller operations than grocery store prices (in part due to the regulatory capture so prevalent in modern capitalism). Number two, of the people that CAN tolerate the increase, I don't think modern capitalism would allow their profits to be undercut by a significant shift towards small producers selling direct to customers. They have a few tools that I just don't think most people are prepared to live without like comfort and consistency. I can get plums, cauliflower, tomatoes, broccoli ANYTIME OF YEAR at reasonably consistent prices. The idea that people will have to pay more AND change to seasonal eating habits where they just can't get certain things most of the year? I think we're too far into the comfort of bourgeois decadence, excuse my communist language, to tolerate the change.

I will say I have enjoyed this discussion and I certainly agree that I mischaracterised you by initially latching onto a throwaway "ew bugs" comment.

this post was submitted on 18 May 2024
253 points (96.7% liked)

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