Outer trunk tissues may seem solid, but affected palms have a hollow sound when tapped. It affects the top of the palm where new leaves emerge. New growth is stunted and is pale green or yellow in color. Pink rot is a secondary fungal disease that attacks weakened or stressed palm trees. And just like if the stem broke on a flower, it’s not good news if the trunk gets injured or starts rotting. Early symptoms of the disease are mild to severe wilting of the palm fronds. The tree may be a slow grower, have … The samples taken end up being positive for Thielaviopsis paradoxa, or Thielaviopsis Trunk Rot of Palm. Because these infections can spread quickly, it is important to remove an infected tree as soon as possible to protect other trees. They seem to have dark, black sunken patches all over the trunk. They were lifting our sidewalk, creating a trip hazard. The green fungus on palm tree trunk could be algae which is a clear indication the trunk is getting wet to often. Andy from Florida said, “I have a large oak tree with rotting on one side at the base of the trunk. The University of California extension warns that this disease attacks most palms used in California landscaping. Depending on the point of invasion, the roots may be severely decayed. Ganoderma is a fungus that rots the lower part (4-5ft) of a palm trunk. Palm trees are subject to a wide variety of fungal infections that are common in warm, humid environments. Can I take a chainsaw and cut out the rotten wood and paint it to help the tree survive?” Q: What is killing my palm trees? The fungus causing the disease is Thielaviopsis paradoxa. They are oozing at the trunk area and it smells awful. It is caused by the fungus "nalanthamala vermoeseni." Ganoderma aka Butt Rot of Palms. Its role in causing trunk decay on queen palm and other species is unconfirmed. Pour 3 to 4 ounces of tree stump removal chemicals into each of the holes in granule form, then fill the holes with water so the chemicals can soak in. Avoid hanging plants from palms such as orchids that require daily watering can cause palm tree trunk rot. As an added bonus, it helped by treating our vehicle to a constant stream of bird droppings to be … Palm trees in poor light or the wrong light are more susceptible to palm … Trunk rot is another fungal disease, this one caused by Thielaviopsis paradoxa, which infects the palm through an open wound in its bark. T. paradoxa is transmitted by spores on the wind or in water. The issue we were having with a palm in our front yard was due to its roots. What is this ganoderma we are hearing about? Essentially, the trunk is the stem. Symptoms of fungus can include rotting on the trunk, uncharacteristic wilting and overall slow growth. The head of the infected palm may fall off or the trunk collapse. 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