Feb 26, More often, specifically on the Meyer Lemon Tree which is the most the most popular of all Indoor Citrus trees. We will address what causes the leaves to turn yellow and the specific remedies to correct this common issue.
Reason #1: NATURAL SHEDDING AND LEAF DROP: It is common for the leaves at the bottom of the tree or in the interior that are. Nitrogen deficiency is one of the main causes of yellow leaves on a citrus tree. Nitrogen is a nutrient used in almost every process of life for citrus and fruit trees, from growth to the production of fruit.
A lack of nitrogen in the soil will affect the tree's health, beginning with the leaves. Apr 17, Hi, we have an orange tree about 5 years old and it has never thrived. No fruit, occasionally flowers but they fall off. Recently it has some yellowing of the leaves but not with the veins showing. It also had some orange stain on the back of the leaves, I have sprayed with Sulfur in case it’s a fungus.
Now some leaves are dropping. Why Are Leaves Falling Off Citrus Trees & Twigs Dying? Citrus trees are prized by home gardeners for their attractive green foliage and juicy fruit. A. Jun 27, Aphids attack the tree by sucking the sap from leaves. An affected citrus tree will quickly form curled leaves, leaf yellowing, colonies of aphids, and the attendant dripping honeydew will become visible. This can attract ants, as well as Sooty Mold.
Eventually leaves will die, and twigs will rot and fall off. Mar 10, Curling Citrus Leaves as An Indicator of Root Problems. If the leaves of a citrus tree are curling evenly or cupping along their length, the tree is trying to minimise the surface area of the leaf in order to reduce transpiration and moisture loss, which is an indicator that the roots can’t drive enough moisture to the leaves. Oct 14, Magnesium deficiency: Magnesium is moved from old leaves to new growth and developing fruit, so if there's not enough to go around, the old leaves will show signs first.
Foliage turns yellow on the edges first, leaving a v-shape of green at the base of the leaf. And while it occurs at any pH, it is more likely to occur if the soil is too acidic.