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at least in my area the black is the excrement of pests on the plants. it can be mold or fungus, too. there are many many things it could be depending on the plant type and region. if you are looking for a specific answer, take a sample of the leaves in to a knowledgeable nursery (most likely a non-corporate nursery)
What else can I help you with?
What trees drop their leaves as the winter approches and grow new leaves in spring?
deciduous trees
When does oak tree lose their leaves?
Yes Oak trees are deciduous and lose their leaves in the fall. Most of the time they simply turn brown and fall off but there are a couple varieties of oak that the leaves turn a deep burgundy color before they fall.
Do pine trees lose their leaves in winter?
No, pine trees do not have leaves. They have pine needles that have a waxy coat on them. People refer to them as pine leaves sometimes, but that isn't what they are.
What is the name of trees that shed their leaves in winter?
threes that lose their leaves in the winter are called deciduous trees. They lose their leaves to conserve moisture and reduce the amount of energy they must consume in order to stay alive. The leaves of some deciduous trees turn bright colors before they drop to the ground, while others simply fade or turn brown. Environmental factors and the genome of the tree affect how quickly the leaves fall.
What do you call trees that shed their leaves and grow new ones every year?
A tree which sheds it's leaves once a year is called deciduous.
What are some of the key characteristics of maple trees in spring"?
In spring, maple trees have new leaves that are bright green and delicate. They also produce small, clustered flowers that eventually turn into winged seeds called samaras. Maple trees are known for their distinctive lobed leaves and their sap, which can be harvested to make maple syrup.
What triggers trees to grow new leaves?
i think it has to do with sunlite
What trees drop their leaves as winter approaches and grow new leaves in spring?
Deciduous trees are the ones that drop their leaves in the fall as winter approaches and grow new leaves in the spring. This cycle is also known as leaf fall or abscission. Popular examples of deciduous trees include oak, maple, birch, and beech.
What is an apple tree a deciduous tree or an evergreen?
Apple trees are deciduous trees. This means that they loose their leaves in the fall and they reshoot in the spring and grow new leaves.
What New England deciduous trees carry their leaves longest?
oak
Do pandas hide in trees with out killing the trees?
yes, they only eat the trees bamboo leaves, but new ones grow again
Is an apple tree a evergreen tree or a deciduous tree?
Apple trees are deciduous trees. This means that they loose their leaves in the fall and they reshoot in the spring and grow new leaves.
