this post was submitted on 02 Jun 2024
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Here in Florida there is a disease called citrus greening. The fruit grows small and falls off before it's ripe. It's basically destroyed the citrus industry. It's spread by flying insects so impossible to control and there is no cure.
So climate change doesn't help but that's not the main culprit.
Flying insects are not necessarily impossible to control. You can promote the populations of their predators.
The problem is, that usually requires promoting a mixture of amphibians, birds, reptiles, small mammals, and other insects. To do that, you need a habitat full of various plants, trees, and terrains, but vast swathes of land have been turned into dead monoculture, so the predators die out.
That works to mitigate flying insects but you are always going to have some. With citrus greening all you need is one to go from infected tree to uninfected tree and the tree is now fatally infected.
Worse the tree will live for years and the insects spread the bacteria for miles from one infected tree. Florida has spent almost two decades fighting the disease. And lost badly.
Hell even is we had done ruthless culling of any citrus within a large range of and infected tree like we did with citrus canker in the 90s it probably wouldn't have worked.
We failed to stop canker from spreading and canker only hurt production and made the fruit ugly and suitable only for juice. It was also much easier to manage as it was spread by leaf to leaf contact and via things like stepping on the leaves in one grove and not cleaning your boots before entering another grove.
In 2004 Florida produced 240 million boxes of citrus. Greening was discovered in Miami in 2005. In 2023 Florida produced 16 million boxes.
Predators? That sounds expensive, complicated, and could negatively affect profits.
Can't we just spray the trees with massive quantities of something cheap and effective like DDT?
Sure, until after several insect generations when many have adapted.
It's like they say: when you're making an orange juice you've gotta break a few eggs.
So essentially, the opposite of the “modern, mechanized agriculture at scale” that is required to sustain our population’s food requirements.
No wonder we are seeing an insect apocalypse and a bird apocalypse, and a massive decline of all species, and hundreds of extinctions each year…
We’re fucked.