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I'm not sure what could have caused that. Do you have snails and slugs in your area? I'm asking because you mentioned you notice them when it rains. Also, are you putting fertilizer in between the leaves? I burned some of my pineapple plants leaves by putting fertilizer directly in the middle of the crown where new leaves emerge, now I keep fertilizer away from the center. Simon
Looks like a fungus disease to me. The white powder you're seeing is most likely a spore bloom. I'd try a systemic copper spray.Bromeliads feed via the cup, the leaves. I use a diluted dose of Dyna-Gro Foliage-Pro dumped into the cups with enough to over flow into the soil. I also scratch in a slow release food into the soil when I upcan them.
looks to be fertilizer burn on the leaves. I don't think its fungus pineapple plants on the leaves have a powder or white dust on themthat helps with protection from insects and other pathogens from sticking to it or infecting it. But to be sure spray them anyways with something like Horticultural Oil works great on pineapple plants and wont harm the plant only spray in the morning or late afternoon when the sun is going down
Quote from: Evildeadguy on June 21, 2017, 10:48:01 AMlooks to be fertilizer burn on the leaves. I don't think its fungus pineapple plants on the leaves have a powder or white dust on themthat helps with protection from insects and other pathogens from sticking to it or infecting it. But to be sure spray them anyways with something like Horticultural Oil works great on pineapple plants and wont harm the plant only spray in the morning or late afternoon when the sun is going downWe dont have horticultural oil here i'm afraid.Would herbal insect repellant be a substitute since i saw it being sold here