I have about 20 apple trees in my garden some in groups. Some seperate. One of them was looking particularly bad. I took a closer look….
There are two things that I spot immediately….
The scaring [left] can often be confused with the marks of apple sawfly…
….but these markings are actually a result of irregular water supply.
The fruit is quite small/ smaller than the fruits on other trees of same variety and some are out of shape.
The sudden availability of water causes the skins to crack.
This coincides with the time they where planted, the fact that they were containerised before and also that no mulching of any format was used.
The second is the wasps….
the wasps…. [vespula spp.] are attracted to the fruits primarly damaged by birds… talk about lazy 😉
The suggested control by some is to find the wasps nest and destroy it.
I just can’t do that. Or you can cover the trusses with nylon/ muslin bags over the fruit before damage begins [?!] As long as its not in the house. There is nothing wrong with the tree. It’s simply the fruit that is gone from it for this year. What I will do it wait until autumn/ winterwhen all the fruit and leaves and wasps are gone and move the tree to a better spot.
A fruit tree problem shared is a problem solved….;) for next year!