that's what makes this odd. A better option is to set up a drip irrigation system which you can control based upon your current weather conditions. Facebook ... my pumpkins are dying when they are small and leaves are yellow with brown spots. Plumeria are tropical trees with dark green leathery leaves and white, yellow or pink flowers that are known for their heady fragrance. Plumeria forum: Brown spots on my plumeria --HELP! The yellow spots correspond to lesions bearing spores on the undersides of the affected leaves. in addition, all the leaves except for the top 2 or 3 on both plants have the spots. These leaves may curl, become distorted, turn brown-gray, and drop off the plant. Because of the frequency of rains this very well could be a fungal issue, that's what I am guessing many of the brownish spots are. I'm in Austin, Texas (zone 8B) and potted my first plumeria in a ceramic container with a cactus mix on my balcony about a month ago. It looks like it could be a combination of problems. Remove all the leaves on the affected plant(s) and spray the soil and the stem with a fungicide solution. It quickly grew a bunch of new leaves but now some of them are turning yellow with spots and then brown and shriveled. If you see yellowing leaves, check the soil by digging down several inches making sure it isn't wet. HOW DO I TREAT/PREVENT BROWN "RUST" SPOTS FROM FORMING ON A PLUMERIA PLANT THAT IS IN A CONTAINER? Usually, the first noticed symptom of rust on plumeria is yellow specks or spots on the upper sides of the leaves. In severe case, Imidacloprid or Abamectin may be applied to control their poppulation. Rust Fungus can affect many plants, including Plumeria. both of these plumeria receive the same treatment. When your plants have a leaf spot problem, they will have tiny brown spots trimmed in yellow instead of an overall yellowing or a fading of their colors. So if you notice the normally beautiful flowers suffering from curling leaves, it is time to act. Left: Flower buds fell off. Some leaves are slightly mottled. The greenish yellow spot, which can appear whitish because of a white wax fringe, and the tiny reddish brown spots (Fig. In most instances, gardeners can ignore the problem, as small infestations do not affect the plumeria's health, according to the College of Tropical Agriculture and Human Resources. brown spots on leaves; It takes a lot to make a Nandina unhappy, but salt build up in your soil will do it. Not enough water or too much water. It appears that a nutrient deficiency was, indeed, the culprit. All the other leaves are slightly yellow and many have those brown spots. Thrips can cause flower buds to turn brown, distort the flowers' growth, and leave discoloring spots or streaks on flower petals or keep them from opening and fall off. The size and number of rust-brown spots on the leaves increase. Plumerias are susceptible to a fungal disease called plumeria rust. Signs of a deficiency first appear around the 4th-6th week. It is a common fungus found on plumeria leaves. When the soil doesn't drain well, an overdose of water leaves the soil waterlogged and root systems can literally drown. Plumeria leaves puckering, curling then black spots on backs of leaves. This now familiar fungal disease, plumeria rust, is known by its conspicuous, powdery, yellow-orange lesions on leaves. 1. Because they need regular, even amounts of water, dry spells can cause plumeria leaves to turn yellow and cause them to drop off the plant, with the bottom leaves suffering first. It's not rust, there is nothing on the underside. Too much water can be just as damaging to leaves. 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