Ripe guava will smell sweet before you even cut into them, then revealing the inner cream-colored or light yellow pulp. Rinse it, dry it, then use it to cut the damaged leaves near the base of the pineapple plant. There are many things that cause the ends of palms tree leaves to turn brown. The most effective way to keep a pineapple from turning brown is to to properly store and then quickly enjoy eating the fruit. It has been in a cup of water on my kitchen table for two weeks and little roots are starting to grow, but the leaves are turning brown at the tips. Hopefully it will sort itself out in a few weeks. Hopefully it will sort itself out in a few weeks. I'm growing a pineapple plant with the cut off top of a pineapple. It looks like your guava tree is infected with anthracnose disease (fungal) caused by Colletotrichum gloeosporioides. Feed the pineapple guava once every other month. This can ruin the tree's appearance temporarily, but it's unlikely to kill the tree. Most commonly brown leaf tips or brown edges on leaves are caused by the plant not getting enough water. About 20% of the existing leaves are gradually turning brown and dropping off. My Pineapple Guava seems to be dying. Skin the pineapple and cut it into bite-size chunks or wedges; large wedges expose less surface of the cut pineapple to air than chunks do, reducing the amount of oxidation and browning. That being said, the tips are still shooting new leaves. It does however require acidic soil. Pineapple guava, also known as Feijoa sellowiana as well as Guavasteen, is an attractive, evergreen tree or shrub with many landscape uses. Use pruning shears to cut back branches to shape the tree or thin out dense interior growth. This would treat a large portion of the things that may be wrong with the tree. I've read that this plant is extremely disease/pest resistant but can't find the information I need through searches.This affects not only old leaves, but new growth as well. The California Rare Fruit Growers website recommends using an 8-8-8 NPK fertilizer. What Can I Use to Keep Mangoes From Darkening? I would consider it like the azaleas. I have some pineapple guava that I bought 4 weeks ago from the nursery. Pineapple guava do not change color (stay green) when they are ripe. To prevent salt poisoning in soil-less plants do not just add water always change the water by overflowing it in a sink. If the damaged leaves are a small percentage of the total, just keep them plucked and not laying on the soil. The spots gradually widen until they have a gray coloration in the center and a brownish tinge on the edges. They will not get back up either. I am planning on getting them in the ground this weekend, but the past few days I have noticed my leaves are starting to curl. Frost can damage a pineapple's leaves, causing them to turn brown and wilt. When I test a lower branch by bending it, it doesnÂt snap  which means that it is still healthy and green inside. Some nearby rose bushes have a very similar thing going on with their leaves, except the marks are much more round/circular. Also, this bush was bothered by the large multicolored grasshoppers this summer and I suspect they did some damage. It’s ideal for warm climates and well suited to home gardens. It's a fairly large plant for that size of pot. There is a spray for that. Any help you can offer would be appreciated. It results in immature falling of leaves, fruits and young shoots. You can pick the thick, fleshy flower petals right off the plant and eat them as a sweet, crispy treat. Probably stress from being repotted. Most of which would need an onsite examination of the tree to determine for sure. I'm just afraid it'll spread and overwhelm the plants. The pineapple guava tree leaves turning brown, petioles, stem and fruits have a gray coloration the! 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