Palmed off

I think someone has it in for our palm tree. If you are a long time reader you may remember a post about an invasion of palm eating beetles, the picudo rojo. It isn't so much the adult beetles that cause the problem but their larvae which feast on the soft tissue and buds of the palms. The trees, I know they're not trees but that's what we call them, die as a result.

Working out how to protect the tree against the beetle and overcoming a slight difficulty with power cables made me think we were going to have to cut the tree down a few years ago but, one by one, we solved the problems. In time I settled into a gentle, and relatively inexpensive regime of spraying insecticide every six weeks. As I understand it the insecticide I am using works like fly spray and interferes with the way the muscles of the beetles work so they die of asphyxiation. The big problem is that it does the same to other beasts, including bees and that's bad. In a more general way, living in Europe, pouring chemicals onto the land is no longer considered to be a good thing to do.

When I first started there were a couple of, freely available, types of chemicals to douse the tree. Then the legislation changed. If I were to continue to use the chemicals I would either have to hire someone in who had the appropriate handling qualifications or get that qualification myself. I was going to do the exam until I discovered that there was an exception designed to cover cases like ours. I was allowed to buy the chemicals in very small quantities at about 25 times the previous price. That's what I did and that's what I've been doing for about the last year.

I sprayed the tree today and with my usual 30 ml of pesticide in 45 litres of water then I went to the agricultural supplier to buy the next dose ready for the next spraying. Hardly any left said the man. The legislation has changed again. The chemicals that I have been using can now only be used inside greenhouses.

Now I've never cared for the idea that I'm slaughtering bees. I have looked for other treatments. I have talked to a palm tree expert in Elche and to the bloke who trims out tree about other ways to protect our palm. I was looking for the equivalent of ladybirds to control greenfly. The biological control. There's a sort of worm that eats the larvae and a fungus treatment too. Neither of them seem to be particularly effective and the regime suggested by both my experts was that I should use the biological treatments when the beetles weren't very active, in the cooler months, but stick with the chemicals in times of risk. I was also put off by the price. I seem to remember fungus treatment cost 80€ per application and that it needed applying several times a year.

So, after the bad news, I went to the environmental department at the town hall to ask for advice. The woman there agreed with me that it was a bit of a problem that the chemicals had been withdrawn. She agreed that the optional treatments were expensive and ineffective and she told me that the town hall had chopped down lots of palm trees which it hadn't been able to protect. She said that down in Elche, where the palm groves have World Heritage status they are losing trees at a prodigious rate. I didn't come away uplifted.

Not a good prognosis. But I've just had a look on the internet. There seem to be all sorts of products at all sorts of prices. I hope it's market forces at work and not just snake oil. Maybe there's still hope for our palm tree and for the bees.