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4
Advice on a sick tree
From the one photo of the tree trunk, this looks like an accurate pest assessment. There is not a lot you can do about advanced plant pest and disease conditions of any kind. Just like with human health, preventive wellness program is the key. In our small hobby farm in Chiang Mai with one rai/55 mango trees, this stem borer was prevalent. It wasn't an aggressive tree killer, the beetle-borers don't form extensive galleries that cut off sap flow like some other bark beetles that I deal with. But I did implement a successful monthly routine with application of a preventive insectide barrier. Pyrethroids are my chemistry of choice for bark beetle prevention (permethrin, bifenthrin, cypermethrin). I used Permethrin 10% which was available at that time from a local MaeJo ag shop. But the highly available household insecticide/termiticide Chaindrite Stedfast 30 SC with bifenthrin will have the longest residual activity. You may be able to get three or four months. The pyrethroid solution is absorbed by the tree bark and provides a barrier for borer entry. It will also help to prevent termite activity/mud-tubes on the tree trunk. For this specific application, I would double the normal rate of 30ml/liter, to 60. Mix in a small handheld sprayer and spray to wet the lower tree trunk until the point of run-off. Spray when there is a mimimun of 4 hours dry period from rain or sprinklers. This is not a foliar canopy spray, just the lower stem. The other photos of the entire young tree show a relatively healthy foliar canopy. There is some lower foliage with fungal leaf spot, anthracnose, and/or insect pest holes. Prune that out and provide better nutrition with complete organic fertilizer, soil surface mulching or cover cropping, and good water management during the dry season. I hope you didn't remove the tree for these superficial factors. Sorry I only look at this forum once a month or so now. -
39
Texas Floods
Ill let ya know after all the bodies are found and all the reports are in. -
31
USA Rumbling in the Swamp: Quiet Talks Begin to Launch a Viable Third Party in U.S. Politics
How nice. So 2 main political parties. -
111
Trump has abandoned the Ukraine.
Tell that to Putin. Looking as he's the ultimate winner. -
111
Trump has abandoned the Ukraine.
Still here typing rather than on the front line of Ukraine shooting.. awe cowardy cowardy custard... all fingers and no balls Chicken coward
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