Gum squash should be wild rice. Water bamboo squash with black spots is edible. This is not caused by mold, nor is it due to the late harvesting of the growth. These black spots are parasitic in the body of wild rice water bamboo spores, it is not only edible, but also contains a considerable amount of essential lysine. Therefore, long black spots of wild rice is completely edible.

Mizuno black powder fungus is originally living in the soil of a fungus, when the underground rhizome of wild rice begins to sprout new shoots, this Mizuno black powder fungus will take advantage of the opportunity to drill into the body of wild rice, and constantly secrete indole acetic acid. It is in this indole acetic acid under the constant stimulation, wild rice stems will continue to grow and expand, and ultimately grow into a fat white wild rice melon.