Shop Products
Houzz Logo Print
glib_gw

Technical question about apple bags

glib
12 years ago

I work in a tech field where we have to build parts every now and again. I was talking to a recently retired colleague and friend about my plans for a mini-orchard with apple bagging.

Being who we are, we started discussing the bags while googling things and soon were discussing how to make a better bag. It seems to me that one has three basic options

1) ziploc bags. They work well, but are not reusable, a definite con is that they are a pain to put on (at least for us untrained people).

2) footies. Codling moth(?) can punch through.

3) japanese paper bags. Not clear how reusable they are, and how easy they are to apply. But for sure they require you to go up the ladder once more in September for removal.

They also lower the content of quercetin and other antioxidants, by blocking the sun.

We are thinking of a device with stronger netting than footsies, reusable many times, applicable and removable with one hand and one click, basically working like one of those old coin pouches with a clickable metal lip. I would appreciate opinions as to the relative merits of reusability, minimization of work, and anything else we should consider.

Comments (41)

  • ltilton
    12 years ago

    I've reused the ziplocks.

  • northwoodswis4
    12 years ago

    It's a bit of a pain, but I also wash and reuse my ziplocks. If they won't dry just being open, you may have to turn them inside out to get them to dry on the insides. Eventually they crack or rip, but I can get at least two years and sometimes three out of a bag. Some of the bags stay clean enough not to need washing, but the ones that fall early usually end up dirty. Northwoodswis

  • ltilton
    12 years ago

    hmm - no one else commenting.

    I think the main issue may be cost. How many years of use is it practical to assume? For ease of application, how much of a premium will people want to pay over the cost of the ziplocks?

    People can use hundreds of these things for every tree. I would definitely be interested in a device that would make application quicker, but there's a limit to how much people will want to pay.

  • marknmt
    12 years ago

    Tubing & twist-ties comes to mind.

    There's a tubular guaze bandage that comes with an applicator. Have a cut thumb? The guaze is poked over the thumb, pulled back and twisted, poked again, etc. until enough layers are built up. Twist off the end, cut, and stick on adhesive tape. Pretty soon you can't do a dern thing with that thumb, but at least it's safe.

    Replace gauze with a nice tight-mesh nylon. The open-ended tube is placed over the fruit, a crimper is used to apply a twist-tie at both ends, the tube is cut with scissors. Move to next apple. Heat sealing might be an option.

    Please don't patent this brilliant idea and make yourself rich without including me ...

    :-)M

  • northwoodswis4
    12 years ago

    To be honest, the tubing and crimper doesn't sound any easier to apply than the ziplocks. If you pre-cut the corners and paper punch a hole in the center of the zipper, assembly-line style in the comfort of your home, the application goes fairly quickly, once you get the hang of it. Check out different brands of bags. Some go on much more easily than others. The ultra-cheapos seem to work the best. My main gripe is that about half the apples I have bagged, even with rather strict thinning, later have fallen in June drop or for whatever reason, making a mess under the tree, diminishing the harvest, and wasting time bagging. Northwoodswis

  • marknmt
    12 years ago

    You're probably right. I'm still uncomfortable with plastic bags next to my fruit in all that sun, though, so I would like a way to do it with a good nylon. Footies did not do it for me- CM got right through them, even sprayed with Surround. Probably didn't keep enough Surround on them, though.

    Oh well- another fortune down the drain.

    :-)M

  • ltilton
    12 years ago

    I definitely find the ziplocks can be trouble to get on - and this is more the case when trying to reuse them, getting the zip to work. I'd be interested in trying an alternative.

  • glib
    Original Author
    12 years ago

    I will keep you posted if we ever develop a prototype. We went across the street from his office, where there are mature crabapples, thinned and tried to put a ziploc on, and we did not find it very easy...

  • ltilton
    12 years ago

    Squirrels CAN easily get through the bags, but I find that it discourages them. The squirrels here prefer pears to apples. I was always finding pears ripped off and chewed on by squirrels. This year, I bagged the pears and the only one they got so far was one where the bag had fallen off a while before.

  • northwoodswis4
    12 years ago

    I have found that some varieties of apples are much easier to bag than others. It depends on how long the stems are. Just testing on the crabs might not give you a true picture. Northwoodswis

  • myk1
    12 years ago

    I reuse zipper bags. How many years depends on how sick I am of taking them off. The sicker I am of it the more I rip. I don't clean them, I throw out the dirty ones.

    I can't think of anything that is going to be any less time consuming to apply if you're applying to individual fruits.

    I think the idea (posted elsewhere) of a row cover bag that goes over the whole tree would be the only other answer that does the same thing but is easier.

    They seem to discourage my squirrels but they have gone after them.

  • glib
    Original Author
    12 years ago

    I can see some problems with the row cover giant bag. Fungal diseases will be worse, and quite a lot of stuff will accumulate at the bottom, including drops. Perhaps something more transparent, such as mosquito netting, plus some handy mechanism to clear the bag at the bottom?

  • Scott F Smith
    12 years ago

    I re-use my cotton drawstring bags. If the drawstrings had those little spring plastic closure things you often find on rucksacks, sleeping bag bags, etc, they would be very easy to get off and on. There may be something a bit more thin than the cotton which will let in more sun, but the cotton does keep all the bugs out; thinner fabric runs the risk of moths able to lay eggs through it. Now that I think of it, it is probably possible to pick up a gross of those closure things from a wholesale supply place and put them on the cotton drawstring bags, and then you will have bags that will last a long time. The cotton bags can be washed like clothing for the next season.

    I'm not bagging anymore myself, I solved my moth problem with mating disruption. It took four years to reduce the population enough for it to work, but it worked well this last season.

    Scott

  • tcstoehr
    12 years ago

    This year I used footies soaked in a high concentration of kaolin. My results are so far favorable, but inconclusive.
    I just harvested my Fiesta apple tree and of the 50 footied apples there was no Coddling moth. However, I found 5 apples on the tree that were not footied and they also were moth-free. Further, I have a Jonagold tree that is absolutley loaded with fruit and it appears to be less than 20% moth infected. CM pressure appears to be quite low this year, likely due to years of fanatical apple bagging.
    One thing I did notice was about a 10% incidence of deep, black rot around the stem. I am convinced this is from the footies as I never see this on unbagged apples. It is also happening to my Enterprise tree resulting in a handful of early windfall fruits. I consider this loss acceptable.
    Also, earwig proplems were practically nil. Just an occasional loner or a pile of abandoned frass. I remember in years passed the plain footies were virtual earwig convention centers.
    If my other apple trees fare as well as the Fiesta, I will use the Kaolin footies again next year. I definitely prefer it to the ziploc sandwich bags.

  • glib
    Original Author
    12 years ago

    Yes, thanks to my wife we tried the footies on crabapples too, and those were a breeze, and I guess (you may confirm it) that there is no need to take them off until the apple is picked.

    One question I had about footies was the incidence of flyspeck and other summer fungal diseases. Surely the ziplocs and paper bags eliminate them, but what about footies (and cotton bags)?

    Also, should we attempt a whole tree bag prototype, how many of you have aphids, and do you think they can be controlled with the bag on?

  • ltilton
    12 years ago

    I noticed a slight increase in sooty blotch when I tried the footies, but that was just one tree, one time.

  • coconut_head
    12 years ago

    What if you got a bag of small rubber baloons. I think you can get a bog of 100 for a couple bucks. They wouldn't let much light in (though I do see clear latex baloons online), and may, or may not be re-useable. But it should be pretty easy to stretch the neck over a baby apple and then it would be rather snug around the stem. Might not be super tight, but should hold pretty well. You might be able to slip the apple back through the neck if it's a little moist and the rubber is stretchy enough.

  • donnieappleseed
    12 years ago

    I have been playing around with different answers for years on this subject and I do indeed have some thoughts on this:

    1. Here's one problem and this would require a separate thread to talk about it: I have done a patent search on one of my ideas and I am now leaning toward believing I don't have the resources or am likely to push it through where I would be able to make any money off of it....so why not just follow my natural instinct and share? I wonder, though, whether I wouldn't come across the right group who could push it across and I could make some money off of it later.....I don't have much to shout about for retirement, so which is better? To do everything in one's power to help humanity as soon as possible.....or to take a 10% chance one could actually suceed in looking after one's own needs, make some money, and let humanity wait a few years? (I say this partially tongue-in-cheek, knowing surely that others have had the same basic ideas I have had but just haven't published them yet, knowing that I am out of my league, etc....but I am also somewhat serious)

    2. Also needing a separate thread was an intriguing comment by Scott:
      "I'm not bagging anymore myself, I solved my moth problem with mating disruption. It took four years to reduce the population enough for it to work, but it worked well this last season. "

    As for me, I used isomate C pheromone disruptors purchased from Wilbur Ellis in various locations in Seattle last year and I kind of thought it wasn't worth it....but recent data is causing me to reconsider whether mating disruptors might be efficacious in an urban setting, under certain conditions. Scott's idea that it takes 4 years is highly interesting to me.

    This thought deserves a separate thread as well.

    1. I used balloons....they can work, but I seemed to have more apple scab in wet Western Washington....perhaps I should have sealed them more.

    2. I have been promoting the idea of mosquito netting on container fruit trees but am a bit more "soured" on this idea after talking with experts at the Mt. Vernon Research Station where they believe the netting is more likely to introduce fungus.

  • northwoodswis4
    12 years ago

    Are balloons any cheaper than ziplocks? Northwoodswis

  • glib
    Original Author
    12 years ago

    If it is the same balloons that kids use for water fights, they will be tough to peel off the ripe apple.

  • urbanfarmer7b
    12 years ago

    Two other materials to add: I work in food manufacturing and we have the disposable boufant hair nets, which are like row cover. The other are the disposable pillow case covers on commercial airlines. I did an experiment with these along with bird netting this year on different trees for rodent dissuasion.
    They all worked but I was thinking about the small disposable pillow cases for the baggies next year earlier on. The hairnets fell apart under the UV stress, which is a shame because they are incredibly cheap. I'm in the southeast and I worry about the ziplocs and the heat and humidy. I'm looking forward to what works best.

  • marknmt
    12 years ago

    OK, one last flogging of this poor dying horse and I will stop:

    Nylon mesh tubing, would come in a flat roll from 3 to 5 inches wide, tubing circumference 6 to 10 inches, circle diameter roughly 2 to 3 inches.

    Pull off a few inches and heat-crimp one end, leaving the other end open; place open end over young apple; close that end like Scott's cloth parts bags or the old Bull Durham cigarette tobacco bags- a twist tie might work.

    Or perhaps: pull bag over a ball, twist tie or heat seal the end attached to the roll and cut. Proceed as above.

    Apple grows and forces bag to shape.

    Oh, well, a guy can dream, can't he ... ?

    :-)M

  • Tony
    12 years ago

    Hi all,

    Is anyboby out there have a picture of their apple tree cover with ziplock bags. I just want to see what it is look like and imagine it in my back yard. If it works well I will bag it next spring.

    Thanks,

    Tony

  • drnewman6
    12 years ago

    I realize this is an old thread but I wanted to add and ask something.

    About 6 years ago, my cantaloupes grew up the fence. When I realized that the weight would probably break the vines, I took knee high panty hoses and slipped them over the cantaloupe and tied the top to the wire on the fence. Not only did that work for the weight, it kept bugs off the cantaloupe's. I would wonder if knee highs or even cutting regular hoses and tying them off, would work for this or if insects could still get in through the tiny holes?

  • ltilton
    12 years ago

    You mean for apples? They sell little footies just for this purpose. They only claim to control apple maggots, not a lot of other pests. I haven't found them very effective, not as effective as ziplocks, and others around here have had a similar experience.

    Here is a link that might be useful: Footies

  • glib
    Original Author
    12 years ago

    Many people use footies to protect their fruits. Apparently they work except for codling moth. I have not seen no suggestion here as to how the larva gains entry (through the footy, or crawling along the branch and stem). Anyone with experience with footies and codling moth wants to pitch in?

  • quillfred
    12 years ago

    I had really good luck this year with using Surround-soaked footies. I refresh-sprayed Surround twice after heavier rainfalls and only lost one apple to CM. I only had four dwarf trees producing so was able to cover everything ok.

  • donnieappleseed
    11 years ago

    Well, I didn't get a response from my inquiry of a couple days ago and so I am posting this thread from a year ago which intrigued me.
    I have had some problems with foot sox, even with kaolin clay, in high codling moth populations. I am not sure if the codling moths are eating through the footies in this case .... or if I was too late in applying the foot sox. I am wondering if maybe I should have put on a spinosad product first to kill any emerging larvae just in case there was already an egg inside where I planted the foot sox. Of course, spinosad has a short re-entry time and this makes it easier.
    Any other ideas to consider?
    I am also open to knowing how to post a question on this forum and get a response......others seem to have mastered this art more than me.
    thanks.

  • md_farmer
    8 years ago

    I realize this is an old thread, but I used ziploc bags on my apple trees lsst year with great success. I'm not thrilled with idea of fruit baking inside hot plastic all summer long, even tho ziploc bags are BPA free (I checked). I bought apple maggot/nylon bags this year, thinking I'd use in conjunction with Surround, but even on their own I'm finding them very cumbersome. I tried twisting the end around the stem of the fruit but it's so bulky that I wonder if that's how codling moths access the fruits.


    Last year I only had 50 bags to apply, but this year I'm up to at least 400-500, and I just added 200 trees to my orchard. Is anyone bagging apples by the thousand? I'm thinking that even by next year this may not be feasible. 500 ziploc bags at Costco were $8, which was a lot less than I paid for the apple maggot bags, altho nylon bags seem easier to reuse.


    I grow organically and keep hearing that with organic apples I can expect about 50% marketable fruit. Last year was my first fruit harvest at all and close to 100% of the bagged apples were perfect. The fruits I did not bag were a mangled mess. I'm not sure I can make the bagging process work on a larger scale tho. I may need to try to figure out a more intense or better timed spray schedule to control pests. Any insights are appreciated.

  • spartanapples
    8 years ago

    Tony:


    I use ziplock bags only on my Haralson apple and spray the rest. I use Imidan instecticide and I find it really causes russeting on the Haralson so I bag them. I do spray them with Imidan at petal fall and again 12 days later. At that time I bag when they are large enough, and I got them thinned out to what I want to keep.

    The bags are very unsightly when first put on. As time goes by, they loose their shine and are hardly noticeable. Last year I even missed a few bagged apples at harvest and found them when the leaves were dropping in fall. Too ripe by then to be of use.


  • northwoodswis4
    8 years ago

    My first year of bagging, it seemed like the answer. Then I bagged 2000 one year. Three-quarters of the apples then fell. It was discouraging, as I had spent days bagging. This year I am going to try Surround on most, and just bag a few. Northwoodswis4a

  • Tony
    8 years ago

    Spartan

    Nice photo. I have a 16 varieties multi grafted apple tree. The last 3 years I have bagged about 30 apples on each of the variety so I can some nice perfect apples without any insects bite. Like you said, the bags looking funky at first. Where did you buy your Imidan (powder then mix or liquid conc.) at?

    Tony

  • speedster1
    8 years ago

    Is there anyone that bags cherries? I only have about a dozen total from 4 different varieties and want to be sure I get a chance to sample them. They are currently green and about the size of a peanut. Would only take me about 6 bags to cover them. Is now a good time to put the bags on?

  • Tony
    8 years ago

    Speed

    I bagged my plums and apricots. I think with cherry because of the small fruits that you need to tape the bag to to the branch so the winds won't pull them off..

    Tony

  • rphcfb14
    8 years ago

    Biggest issue with cherry is bird. Netting is a solution.


  • md_farmer
    8 years ago

    Northwoodswis, I'd be discouraged too if I bagged all those apples and had so many fall. Sorry if this is a stupid question but do you think those fell because of the bags, or despite them?


    Sounds like I need to work on my IPM program and not count on bagging as the final solution to my pest issues. I am going to keep experimenting with bagging tho.

  • speedster1
    8 years ago

    I'd hate to have to net an entire cherry tree to protect a dozen cherries. haha.

  • myk1
    8 years ago

    I bagged 850+ this year starting a couple weeks ago. Peck away, 100-200 a day with breaks for rain and spray. I'm considering buying more. I expect many to fall because I try to bag early and I picked wrong or didn't thin enough. Especially on wimpy plum connections, I lost about 50% yesterday of the 30 on my Santa Rosa before I'd got 130 on my Shiro. I put them back on as they fall or pick the ones that aren't growing off and put them back on.
    If I wanted to save a few cherries I would try my first bagging method I did on plums before I knew what bagging was. Bread sack and bag the whole branch.


  • Darren Gordon
    8 years ago
    last modified: 8 years ago

    FYI Walmart produced a new kind of ziplock bag this year, its cheaper than Costco, at 300 bags for $4.75 and it has a double zip (two thin zippers). I used these bags exclusively this year and I like them a lot. Here is my web page on bagging:

    http://gordosoft.com/orchard/bagging.htm

    I like that people are thinking of better alternatives but its hard to beat the 0.015 price point of a zip lock bag. I don't find it difficult to put them on. For those with high June drop losses, I'm wondering if you keep bees or not? Maybe caused by poor pollination. I highly recommend keeping some solitary bees. Inadequate thinning or unfavorable weather can also cause this.

  • spartanapples
    8 years ago

    Northwoods:

    I am not sure why so many of your bagged apples fell off but I presume from June drop? If you are bagging early in the season that might be a reason.

    Most are bagging when the fruit is the size of a dime to beat insect damage from curculio/leafroller but when June drop comes, the trees will drop some fruit naturally. I prefer to spray early for insects (starting at petal fall) and then bag mid-late june. This also gives me plenty of time to get them bagged since I am covered against insects anyway. Just a thought that perhaps june drop is the reason. Of course since I am only bagging the Haralson this is not an issue for me. It would be if I bagged all my apple varieties.


    Tony: The last time I bought Imidan 70 was from Schlabach's Nursery in Medina NY. They

    stopped selling it this year and now offer Avuant instead due to the restricted use issue for many states for Imidan. Not a problem for me. I have many friends in the orchard industry who will sell me a pound or I can get it direct if I buy it in 4 lb lots from Keystone. 4 pounds at time will last me for about 7-8 years. I keep it triple packaged,cool and dry and have no problems with the longevity issue. 8 year old Imidan seemed to work for me just as well as fresh. Imidan can be purchased IF you have a pesticide applicator's license (if it is a restricted use chemical for your state) and if you are willing to buy 4 lbs at a time. For many home growers with just 2-3 apple trees, the cost for such quantity and the pesticide applicator's license required make Imidan out of reach.


Sponsored
Wannemacher Interiors
Average rating: 5 out of 5 stars26 Reviews
Customized Award-Winning Interior Design Solutions in Columbus, OH