Q. I have an Apricot tree I planted in January (bareroot
from the farm). It has been doing really
well until a couple of week ago I noticed something was eating some of the
leaves. More recently I have noticed
yellowing of some of the leaves. Any
ideas as to what is causing this and how to remedy the problem? I have attached pictures. Thanks.
A. Photos 2, 3 and 4 looked like a nutrient or watering
problem. The leaf or leaves were light green with some scorching around the
edges. There might also be some wind damage. In photo it looks like a critter
could have been eating the leaves but that is no big deal if it only affects a
few leaves and doesn’t bother the fruit. In the photos 2 – 4 it does appear to
be a nutrient problem.
See how the leaves on the ends of the branch are yellowing more than the older leaves coming from the thicker part of the branch? This is a good indicator it is most likely an iron or irrigation problem. Irrigation, too much, can also mimic iron shortages or actually cause an iron shortage. This is what you need to do. If there is mulch, pull the mulch away from the trunk. If there is no mulch, then pull the soil away from the trunk until you start to see the roots that were in the original container. I am concerned you might be developing collar rot. Planting the tree a little too deep can also cause similar looking problems.
If you are on a watering pattern that is every day, try to get off of it. Go at least every other day or even best every third day in the summer but add enough water to get the water down at least 12 inches into the soil. If it is hard to do this, build a donut around this young tree at least 18 inches from the trunk. Two feet from the trunk is even better.
Any iron spray made for applying iron to the leaves should work fine. However, some plants, in fact many plant leaves will not turn green from an iron spray without multiple applications. So I would make a fresh spray of iron for the leaves about four times and apply the iron on four separate applications a few days apart. Remember to apply it in the cool of the morning.
I would use distilled water or RO water. I would also put a tsp of liquid dish detergent (one with no addatives like scents or lotions) in one gallon of spray mix. Shake it to mix the spray and detergent together but not allow it to foam. Spray immediately. Do not hold it overnight. Make a fresh spray each time you spray. Next January make your normal fertilizer application to the tree and include an iron chelate to the soil that contains EDDHA chelate.
Not a clear picture from the reader but you can see the scorching of the leaves on apricot. |
See how the leaves on the ends of the branch are yellowing more than the older leaves coming from the thicker part of the branch? This is a good indicator it is most likely an iron or irrigation problem. Irrigation, too much, can also mimic iron shortages or actually cause an iron shortage. This is what you need to do. If there is mulch, pull the mulch away from the trunk. If there is no mulch, then pull the soil away from the trunk until you start to see the roots that were in the original container. I am concerned you might be developing collar rot. Planting the tree a little too deep can also cause similar looking problems.
Again not the best picture but it does look like an insect could have taken a chunk out of the leaf but chances are, if there were strong winds recently, it was wind damage. |
If you are on a watering pattern that is every day, try to get off of it. Go at least every other day or even best every third day in the summer but add enough water to get the water down at least 12 inches into the soil. If it is hard to do this, build a donut around this young tree at least 18 inches from the trunk. Two feet from the trunk is even better.
Any iron spray made for applying iron to the leaves should work fine. However, some plants, in fact many plant leaves will not turn green from an iron spray without multiple applications. So I would make a fresh spray of iron for the leaves about four times and apply the iron on four separate applications a few days apart. Remember to apply it in the cool of the morning.
I would use distilled water or RO water. I would also put a tsp of liquid dish detergent (one with no addatives like scents or lotions) in one gallon of spray mix. Shake it to mix the spray and detergent together but not allow it to foam. Spray immediately. Do not hold it overnight. Make a fresh spray each time you spray. Next January make your normal fertilizer application to the tree and include an iron chelate to the soil that contains EDDHA chelate.
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