What are the (easiest) sustainable ways of getting rid of immature (windfallen) apples?

  • Is it OK to put them into a compost?
  • What part of compost can they make?
  • Is it good to crush them before putting them to the compost?
  • Are partially or fully rotten apples good for composting too?
  • What part of compost can the rotten apples make?

I have already read some suggestions (Apples in compost) and it is probably good to mix them in compost with dry leaves, sawdust, paper etc. The problem is that at this time there is a lot of windfallen apples but almost no leaves.

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    What makes you think you can't compost them? It would interest me even more what you would consider compostable. – Earthliŋ Aug 19 '13 at 17:13
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    Another option is cutting them in half and sticking them in a worm farm – going Aug 20 '13 at 2:12
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    @Earthling: Immature apples are often very hard and they look like they will need very long time to decompose. More mature apples can also contain a lot of water which is not probably good for compost. Regarding the rotten apples - I am not sure if the mould could not infect the compost and then the plants on which the compost is being used. – pabouk Aug 20 '13 at 7:33
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    @pabouk, I had the same concern about mould: Are mouldy kitchen scraps okay to compost? – theUg Aug 26 '13 at 5:08
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    Breaking them up will definitely help them compost faster. On farms it's common to run a flail mower over fallen (or dumped) fruit for this reason. That also makes fermentation much less of an issue (birds and animals eat them and get drunk, hurting themselves or others) – Móż Aug 29 '13 at 4:52

Apples, like practically all other organic waste, are ideal for composting. You can cover the apples with leaves, sawdust, other soil, etc., to prevent them being eaten by birds & insects and carried away from your compost pile. But in principle you need nothing but a little patience and soon your apples, whether windfallen, stormfallen or hand-picked, will turn into compost.

As long as you aren't trying to compost apples only, or a ridiculous quantity of apples (more than 100kg in one spot), there should be no problem. Even hard apples will rot and get soft very soon. Moulds are part of the composting process and most often come from yeasts already present on the skin of the fruit. These moulds might even be "intended" to help break down the apples and provide rich soil for the seeds, which is probably why the apple tree provided the flesh in the first place. Once the composting process has taken its course, these moulds will probably have been decomposed themselves.

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In my experience, windfall apples can turn into serious slime unless you prepare them for composting by adding plenty of drier ingredients to the mix. Crushing them, and then adding dried fall leaves - shredded if possible - in a ratio of 1:3 or 4 would probably make some pretty decent compost, depending on how green they are. If you don't have any dried fall leaves at the moment, you should be able to just rake all the fallen apples to the side into a pile and deal with them once you do. I know most of the windfall apples we've had under our trees lasted several weeks in a more-or-less whole condition unless we did something to them. If the weather there is cooling off, that should help keep them in mostly non-rotted condition until you have all of your "browns" together to make the compost pile.

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  • I have seen farms piling immature apples in shallow pits in well drained areas. Adding some dry dirt and sawdust would help with the excess moisture. – grayQuant Oct 20 '13 at 20:47

I trench the apples. I make a trench 12 inches deep if the crop I will be planting there has roots that go down that far. I then fill the trench four inches with windfall apples, and top it off with soil. I am not concerned with quick results. It will take two years before the apples get broken down under those conditions. You need to consider this if, for example, you rotate what you plant in that row each year.

You can fill a 12 inch trench halfway or more with apples if you are tight for space, but then you will have a lot of fill dirt to find a place for afterwards, and, as the apples break down, there will be a more noticeable drop in the level of the trench (mature apples are 84% water).

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In the fall there does seem to be a lag between having too many "greens" (rotting fruit like windfall apples) and not yet enough "browns" (dead fallen leaves) to make compost. I try mixing in some dry mulch with the apples and layers of cardboard under and over the apples in the compost pile. Mostly try to keep the apples covered and from getting damp. Eventually the leaves will fall and you can add them in your compost. Sometimes you can help your neighbors get a headstart on autumn cleanup by gathering up their leaves and taking them to your compost pile, especially helpful if you have any elderly neighbors with a garden.

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I have a very old, very large cortland apple tree near my garden. Every other year it bombards me with far more apples than I can use. I simply toss them into my garden without any fuss and let the cold New England winter do the rest. They break down on their own and by Spring thaw are completely incorporated into the soil. Loads of happy, fat earthworms keep the soil so aerated I don't even have to till.

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