[Market-farming] Market-farming Digest, Vol 115, Issue 18

Diane Kunkel thekunkelhouse at clearwire.net
Thu Aug 16 13:17:56 EDT 2012


interesting discussion about spotted wing drosophila
On 8/15/2012 9:01 AM, market-farming-request at lists.ibiblio.org wrote:
> Send Market-farming mailing list submissions to
> 	market-farming at lists.ibiblio.org
>
> To subscribe or unsubscribe via the World Wide Web, visit
> 	http://lists.ibiblio.org/mailman/listinfo/market-farming
> or, via email, send a message with subject or body 'help' to
> 	market-farming-request at lists.ibiblio.org
>
> You can reach the person managing the list at
> 	market-farming-owner at lists.ibiblio.org
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Market-farming digest..."
>
>
> Today's Topics:
>
>     1. Re: Carrots (Harriet Allen)
>     2. Re: New Raspberry pest-back again with a vengance
>        (Shoemaker, William H)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 15 Aug 2012 06:07:50 -0700 (PDT)
> From: Harriet Allen <hattie_allen at yahoo.com>
> Subject: Re: [Market-farming] Carrots
> To: market-farming at lists.ibiblio.org
> Message-ID:
> 	<1345036070.24931.YahooMailClassic at web161606.mail.bf1.yahoo.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> I agree with the flame idea, etc. Carrot seed in the hot soil comes up much much faster than in the spring. ?Usually within a week. ?That means you have less time to get it flamed, but also that it will compete a little bit better with weeds...depending. ?The key is to keep it wet. Radish or beet seed will come up before the carrots, but be very careful not to let that opportunity pass. ?A quick flame down the rows in the bed where the carrots have been planted will save you much time later, or much labor cost!
> You do not need a fancy flamer. ?I use a weed flamer I got online from Amazon that cost about $45. ?It hooks up to a small propane canister. ?I just saw it on Amazon today for sale at $32! ?Benzomatic. ?Make sure you get the self-igniting one. ?Has a little starter on it for when the flame blows out. ?Really foolproof. ?I've been using the same one for several years and have only used about three little canisters for as many years! (Doing about four hundred foot beds of four rows each. If you are doing a few hundred feet of bed, it is plenty of horsepower.. ?Takes very little time and so worth it. ?You don't really have to go between the rows of carrots, but in the row itself and keep the flame moving. You are not trying to cook the soil, but singe the weeds that are at this point basically invisible. ?Then you can take a hoe in between the rows when the time comes.
> Be sure to do this when the wind is not blowing and if it is very very dry, keep a hose around and do it when you can actually see the flame. ?Early morning is great when there is dew, or after it rains works well too, or after you water. ?I kick myself every time I don't do it.
> Keep an eye on the radish or beet seed and flame. ?Make sure you do bury your carrot seed 1/4 inch. ?If it is on top of the soil, or less than 1/8th inch covered, you can easily kill it. ?If it has germinated, you'll lose the bed too. ?It is just about timing and knowing carrot seed comes up fast fast in the summer.?
>
>
>
> Hattie's Garden
> 31341 Kendale Rd.
> Lewes, DE 19958  302-945-0350
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: http://lists.ibiblio.org/pipermail/market-farming/attachments/20120815/9c052693/attachment-0001.html
>
> ------------------------------
>
> Message: 2
> Date: Wed, 15 Aug 2012 13:45:19 +0000
> From: "Shoemaker, William H" <wshoemak at illinois.edu>
> Subject: Re: [Market-farming] New Raspberry pest-back again with a
> 	vengance
> To: Market Farming <market-farming at lists.ibiblio.org>
> Message-ID:
> 	<5A85FA1DC3DB524491801C112E78A573448112CC at CITESMBX2.ad.uillinois.edu>
> Content-Type: text/plain; charset="windows-1252"
>
> IF it is Spotted Wing Drosophila it is pretty susceptible to insecticides. The problem is that you probably have every stage of the insect present; eggs, larvae, pupa and adult. You'll need to spray more than once to get them under control. Because it has a short life cycle, spraying twice 4-5 days apart may be enough, but I suspect another spray may be necessary. But that still doesn't address migration of new adults into your patch from adjacent areas. You may need to spray continuously to address this pest, perhaps putting on new sprays every 5-7 days.
>
>
>
> However, looking at this as an opportunity, if you don't spray you'll lose the crop and suffer despair about ever growing it again. Why not turn this into an opportunity to learn what works? If the insect is pretty easy to kill, why not try several choices, focusing on the least threatening insecticides first? You could try Pyganic and Entrust to see how well they control it. These are OMRI approved and have a history of some efficacy on a number of insects. You could alternate sprays of each, which would reduce the risk of resistance development. That's important with an insect like this with a short life cycle. You could throw Neem, or Azidarachtin, into the spray cycle to see if it works, though I'd be a little concerned about the smell. If you're not growing organically, Malathion is effective and shouldn't affect bees. Unfortunately I think Pyganic will affect the bees.
>
>
>
> Sorry to hear you're dealing with this again. I'm afraid we all will be before long.
>
>
>
> Bill
>
> William H. Shoemaker,
>
> Northern Illinois Viticulturist - IGGVA
>
> Illinois Grape Growers and Vinters Association
>
> wshoemak at illinois.edu<mailto:wshoemak at illinois.edu>
>
> ________________________________
> From: market-farming-bounces at lists.ibiblio.org [market-farming-bounces at lists.ibiblio.org] on behalf of Marlin & Christine Burkholder [burkholders at glenecofarm.com]
> Sent: Tuesday, August 14, 2012 8:45 PM
> To: 'Market Farming'
> Subject: [Market-farming] New Raspberry pest-back again with a vengance
>
>
> The new no see-um fruit fly which first made an appearance on our Virginia farm last summer is back again, with a vengeance!  I had considered spraying an insecticide as the crop started into bloom in July but backed off when I saw the number and variety of bees and other pollinators on the plants.  I opted instead to inspect the plants with a magnifying glass in search of the offending flies to see if I could make a positive identification before bringing in the bombs.  I never could see anything that looked like the spotted wing drosophila which I have been suspecting is the culprit.
>
> Now the first flush is ripening and at least 90% of the ripe fruit is mushy soft, crawling with maggots, and unfit to harvest.  If there is no way of rescuing the remaining unripe fruit there will be no reason to attempt harvesting any more of the crop.  It looks like we can consider the crop a 100% failure.  I am considering bombing them immediately and waiting a week or more to begin harvesting.  Anything ripe now or going to ripen within the next week or two would be given a goodbye kiss.  Does anyone think this has a chance of working?  Would insecticide hitting the infested berries still hanging on the vines kill the maggots and help reduce the pest load next year?  Would I also need to soak the ground under the plants to get maggots on the fallen berries?  When are the berries being infested?  At bloom or preripening?
>
> The only professional beekeeper still operating in our county happens to be a next door neighbor.  He is struggling with all the new issues confronting beekeeping, including ?colony collapse disorder? believed to be caused by environmental poisoning.  I do not wish for my activities to contribute to his demise!
>
> Fall red raspberries have in the past been one of our cornerstone income generating crops.  Should I attempt a rescue maneuver now or should I write it off this year and plan to go after it early next season?
>
> This thing is hurting us far more than the BMSB invasion that has had everyone stewing for the past two years!
>
> Marlin Burkholder
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: http://lists.ibiblio.org/pipermail/market-farming/attachments/20120815/7ddf053a/attachment-0001.html
>
> ------------------------------
>
> _______________________________________________
> Market-farming mailing list
> Market-farming at lists.ibiblio.org
> http://lists.ibiblio.org/mailman/listinfo/market-farming
>
> Get the list FAQ at: http://www.marketfarming.net/mflistfaq.htm
>
>
> End of Market-farming Digest, Vol 115, Issue 18
> ***********************************************
>



More information about the Market-farming mailing list