Well the harvest is in, and things around the farm have settled down from the peak frenzy of October. Overall this season went well. We had a good harvest crew, and with the dry fall we were able to stay on track as the apples matured–no rain days to put us behind! It always is a good feeling to have the crop tucked away inside the coolers.
But while the pace slows down some, there is still a lot of work to be completed before winter sets in. Everything needs to be mowed to reduce the hiding places of tree-nibbling mice and rabbits. Weed spray will help that too. Tree trellis wires need to be checked and tightened after a heavy crop load has weighed them down. Equipment maintenance that may have been put off during the business of harvest now has to be taken care of. We have to winterize all of the irrigation lines and wells before freezing temps set in. Ladders, apple boxes and picking equipment all have to be gathered up and stored away for the winter. And the buildings on the farm need to be cleaned up and reorganized after a hectic fall’s work. My son Travis is good at that. I’m more of a “toss is aside, we’ll deal with it later” kind of guy. He likes to have things organized. Maybe that’s why I’m always asking him where things are!
The trees need attention too. After working so hard and using up so much energy to produce a nice crop, we give them a good foliar nutrient mix to perk them up before winter. We don’t want them to be tired and hungry before going to bed! Another thing that helped the trees during the drought this fall was the irrigation system. I have never watered the trees so late into the fall as I did this season. The lack of rain in August, September and much of October this year had the potential to keep the fruit small, and really stress the trees going into winter. But with the ability to keep the orchards watered we could keep the trees happy through harvest. And then, towards the end of October, we finally got rain! Bunches of it! And the soil soaked it up almost as fast as it came down. What a blessing!
So now that the days are shorter. The sun goes down around dinnertime. The apple crop is in. And we can put another season in the books. It’s funny how when we get to this point, all of the work, all of the troubles, the frost and the drought and the hail that we endured over the course of the season, seem like a distant memory. I guess that is a blessing we can count, along with all of the others that we give thanks for each day.
Have a fruitful week!
With the unseasonable weather we are having, there is one subject that I get asked a lot about lately: “Are the warm temperatures going to hurt the trees? Will they start blooming?” Well the answer is no. But that opens up a complicated and fascinating subject.
When a fruit tree finishes its growing season, it slowly enters the process of dormancy as winter approaches. Temperatures play a large role in this. With the warm fall we had this past year this process was delayed for weeks. But once the trees reached the dormant stage, that’s when the chilling begins.
Fruit trees need a certain number of “chilling hours” in order to rest and prepare for the next season. A chilling hour is defined in different ways. Some of the calculating models say that any temps below 45°F count, but others, oddly enough say that temps below 30°F do not count as chilling hours. Still other models begin at 50°F and below and count any hours above 60°F as subtracting from chilling hours. Confused yet? So am I! (and the trees probably are too!) But it is generally accepted to use temperatures between 32°F and 45°F as satisfying the chilling hour standard. And that is the degree range that is tracked by adding up the hours each day during the winter.
Different fruits, and even different varieties within a fruit type, have different requirements for chilling hours. Most apples need 700-1000 chilling hours to grow and produce properly. There are exceptions such as Gala, Fuji and Granny Smith which need only 400 -600 hours. That is why those varieties are commonly grown in California. Most peaches need 750-950 hours although again there are some as low as 200 hours. Cherries need 1000+ chilling hours–ever notice that most are grown in the northern U.S.A.?
So what happens if a fruit tree doesn’t receive enough chilling hours in the winter? Well the tree may produce buds with very weak and uneven blossoms, or it may bloom later and over a wide time period. In severe cases the trees may not bloom at all and have a difficult time producing leaves!
Fortunately here in Michigan we have pretty consistent accumulations of chilling hours year after year. The varieties of fruits that we grow are nicely suited to the chilling hour numbers that we see. If you have ever seen a climate zone map such as those put out by nurseries and seed companies, chilling hours are one factor that goes into determining the the different zones. Want to calculate the chilling hours in your neck of the woods? Here is a place to do that.
So our fruit trees need some time to just chill out in order to recharge for another growing season. Probably a lesson in there for all of us!
Have a fruitful week!
It’s a new year, and just like that we go back to winter with a vengeance! But it is, after all, January in Michigan-what do we expect? This time of year things on the farm have slowed down a lot. The holidays are over, the bakery is closed, and we have only a few weeks worth of apples left to sell. So now our focus turns to the annual task of pruning (trimming) apple trees.
There is an old story that when Michelangelo finished his famous statue of David an amazed patron asked “How do you create such a fine work of art?” His answer? “I just chip away everything that doesn’t look like David!” While this story may or may not be true, It comes to mind when someone asks me “How do you know which limbs to cut off and which to leave?” Well there are methods and some rules of thumb to abide by, but some of is just that I kind of know what I want the tree to look like when I’m finished. If I lined up 5 of my fruit growing friends and all looked at the same tree, we probably would not all make the same cuts. That’s because we all have a different picture in our heads of what the finished product should look like!
The older plantings on our farm are pruned in more traditional ways. Free-standing trees, with strong main branches are maintained by removing the yearly “sucker” growth. “Suckers” are the thin, upright sprouts with no fruit buds on them. Occasionally a large limb is removed in favor of a younger fruiting branch. Outsides and tops are cut back to contain the tree to it’s space and the branches are thinned to let sunlight in. This process is accomplished by riding in a self propelled trimming machine equipped with hydraulic saw and lopper. The driving and moving side to side and up and down are all done with levers run by my feet. This leaves my hands free to use the pruning tools and make the needed cuts. After years of running this machine, I rarely think about the driving part, my feet just do the task subconsciously. Up one side of the row and down the other, hour after hour, day after day.
Newer plantings are an entirely different animal though. While some of the same principles are applied, These trees will have no permanent limbs. Every year we remove 2-4 of the biggest limbs, leaving a stub that hopefully will send out a new branch the following summer. In this way, the apples are always growing on young, healthy branches and older wood is constantly being replaced. The trees are kept very narrow so that sunlight can penetrate the entire tree from all sides. I’m still getting used to this newer method and it takes a little more thought for me, probably because I’ve been doing it the old way for so long!
So how do I keep from getting bored during the seemingly endless hours or trimming? Well I do have to pay attention to what I am doing, but I often have music or a podcast going in my ears as background noise. My phone is set for hands free calling too, so I can make or answer calls without missing a snip! Technology is great!
So even during the heart of winter we are trying to …
Have a fruitful day!