Re: [Apple-Crop] SWD attack on intact peaches

[Juliet Evelyn Carroll]

SWD has been found in intact peaches in NY this year. Infestation levels are 
low. Growers are using insecticides. I have sampled 10 varieties. Sampled 
prunes this week; nothing found with salt float, now waiting rearing results. 
Sampling one peach variety after harvest was completed showed the level of 
infestation went up as the variety softened on the tree.
I sampled intact peach drops some years back and found about 1/3 of the 
Drosophila reared out were SWD.
SWD was early and very bad in NY. Tart cherries significantly affected on at 
least 3 farms.
Juliet Carroll
NYS IPM
Cornell University

Sent from my iPhone

On Sep 18, 2017, at 1:12 PM, Glen Koehler 
> wrote:

Case in Maine that appears to be SWD attack on intact peaches without splits or 
other prior wounds.  These peaches were ripening on the tree but not over-ripe 
and no splits etc. for easy drosophila oviposition without having to cut 
through skin.  Until now it seemed that SWD could only lay eggs in peaches with 
pre-existing wound.  Have other folks seen SWD infestation of intact peaches?


Glen Koehler
University of Maine Cooperative Extension
Pest Management Office
Voice:  Office 207-581-3882,   Cell  207-485-0918
491 College Avenue, Orono, ME  04473
UMaine Apple IPM https://extension.umaine.edu/ipm/programs/apple/
Ag-Radar https://extension.umaine.edu/ipm/ag-radar-apple-sites
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[Apple-Crop] SWD attack on intact peaches

[Win Cowgill]

Glen- From work that Dean Polk Rutgers and I did in NJ we know that SWD can 
infest intact peach fruit
His response has more detail. But the answer is yes SWD can be an issue if the 
populations are high enough with alternative sources like Black Cherry, wild 
grapes, grapes, blueberries and many more.

Win

Win Cowgill
Executive Horticultural Advisor Tree Fruit-Phytelligence
Win Enterprises International, LLC
PO Box 143
Baptistown, NJ 08803
www.wincowgill.com
908-489-1476



> On Sep 18, 2017, at 1:10 PM, Glen Koehler  wrote:
> 
> Case in Maine that appears to be SWD attack on intact peaches without splits 
> or other prior wounds.  These peaches were ripening on the tree but not 
> over-ripe and no splits etc. for easy drosophila oviposition without having 
> to cut through skin.  Until now it seemed that SWD could only lay eggs in 
> peaches with pre-existing wound.  Have other folks seen SWD infestation of 
> intact peaches?   
> 
> 
> Glen Koehler
> University of Maine Cooperative Extension
> Pest Management Office
> Voice:  Office 207-581-3882,   Cell  207-485-0918
> 491 College Avenue, Orono, ME  04473
> UMaine Apple IPM https://extension.umaine.edu/ipm/programs/apple/ 
> 
> Ag-Radar https://extension.umaine.edu/ipm/ag-radar-apple-sites 
> 
> Our Changing Climate: It's Real, It's Us, It's Bad, Experts Agree. There's 
> Hope
> 
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Re: [Apple-Crop] SWD attack on intact peaches

[Dean Polk]

Yes -
We had 1 report from a farm in North Jersey, but I could not find any in the 
fruit. I later picked some ripe Encore on Sept 1 and put them in emergence 
cages. I let them run a full 14 days. And yes, many SWD females and males 
emerged. We have never had these in peaches in NJ, and we still don’t – in 
traditionally sprayed orchards. The difference here is that the one reported 
incidence in Hunterdon County and the recorded emergence from the Encore came 
from fruit that had not been sprayed for about 4 weeks (I still have to look up 
the spray programs). In recent years growers have been using many pyrethroid 
sprays for BMSB control. This year, given the lower BMSB populations, coupled 
with the use of mating disruption for OFM, the insecticide use in a number of 
orchards was much lower. I think what this tells us is that if we get back to a 
true IPM program for peaches, we have to monitor and treat for SWD, at least 
for fruit that is intended for table-ripe markets. We  have to look at this as 
a whole farm practice in that we have to allow for management options if the 
grower also produces other SWD host crops like blueberries, cherries and 
caneberries.

Dean Polk, Fruit IPM Agent (Professor)
deanp...@njaes.rutgers.edu
Rutgers Agricultural Research and Extension Center
121 Northville Rd.
Bridgeton, NJ  08302-5919
Cell: (609) 902-1134
Office: (856) 455-3100  ext 4116
Fax: (856) 455-3133




From: apple-crop 
<apple-crop-boun...@virtualorchard.com<mailto:apple-crop-boun...@virtualorchard.com>>
 on behalf of Glen Koehler 
<glen.koeh...@maine.edu<mailto:glen.koeh...@maine.edu>>
Reply-To: Apple-Crop discussion list 
<apple-crop@virtualorchard.com<mailto:apple-crop@virtualorchard.com>>
Date: Monday, September 18, 2017 at 1:10 PM
To: Apple-crop LISTSERVER 
<apple-crop@virtualorchard.com<mailto:apple-crop@virtualorchard.com>>
Subject: [Apple-Crop] SWD attack on intact peaches

Case in Maine that appears to be SWD attack on intact peaches without splits or 
other prior wounds.  These peaches were ripening on the tree but not over-ripe 
and no splits etc. for easy drosophila oviposition without having to cut 
through skin.  Until now it seemed that SWD could only lay eggs in peaches with 
pre-existing wound.  Have other folks seen SWD infestation of intact peaches?


Glen Koehler
University of Maine Cooperative Extension
Pest Management Office
Voice:  Office 207-581-3882,   Cell  207-485-0918
491 College Avenue, Orono, ME  04473
UMaine Apple IPM 
https://extension.umaine.edu/ipm/programs/apple/<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fextension.umaine.edu%2Fipm%2Fprograms%2Fapple%2F=02%7C01%7Cdeanpolk%40njaes.rutgers.edu%7C2fdcf2caeefe4f060adf08d4feb85355%7Cb92d2b234d35447093ff69aca6632ffe%7C1%7C0%7C636413515013085312=55Ja1dTdmioTkQBQn2J1fliC5tpVODLPqLcvcfsF9K4%3D=0>
Ag-Radar 
https://extension.umaine.edu/ipm/ag-radar-apple-sites<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fextension.umaine.edu%2Fipm%2Fag-radar-apple-sites=02%7C01%7Cdeanpolk%40njaes.rutgers.edu%7C2fdcf2caeefe4f060adf08d4feb85355%7Cb92d2b234d35447093ff69aca6632ffe%7C1%7C0%7C636413515013085312=rxTnaY%2BX0r8j%2B%2BE4HEqrLz0nWRGYQf6QuD%2BrP0LlIAI%3D=0>
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Re: [Apple-Crop] SWD attack on intact peaches

[Dan Cooley]

I'm pretty sure Jon Clements has seen that here in MA.

> On Sep 18, 2017, at 1:45 PM, Kevin VerSnyder  wrote:
> 
> Glen, i have been dealing with SWD in peaches now for at least 5 years. We 
> have the biggest tart cherry industry here in the country so our numbers are 
> very high. Ive noticed they have no problem getting into the flesh as well.
> 
> Kevin J. VerSnyder
> VerSnyder Orchards
> Lake Leelanau, MI
> Cell-(231)866-0469
>> On Sep 18, 2017, at 1:10 PM, Glen Koehler  wrote:
>> 
>> Case in Maine that appears to be SWD attack on intact peaches without splits 
>> or other prior wounds.  These peaches were ripening on the tree but not 
>> over-ripe and no splits etc. for easy drosophila oviposition without having 
>> to cut through skin.  Until now it seemed that SWD could only lay eggs in 
>> peaches with pre-existing wound.  Have other folks seen SWD infestation of 
>> intact peaches?   
>> 
>> 
>> Glen Koehler
>> University of Maine Cooperative Extension
>> Pest Management Office
>> Voice:  Office 207-581-3882,   Cell  207-485-0918
>> 491 College Avenue, Orono, ME  04473
>> UMaine Apple IPM https://extension.umaine.edu/ipm/programs/apple/
>> Ag-Radar https://extension.umaine.edu/ipm/ag-radar-apple-sites
>> Our Changing Climate: It's Real, It's Us, It's Bad, Experts Agree. There's 
>> Hope
>> 
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Re: [Apple-Crop] SWD attack on intact peaches

[Kevin VerSnyder]

Glen, i have been dealing with SWD in peaches now for at least 5 years. We have 
the biggest tart cherry industry here in the country so our numbers are very 
high. Ive noticed they have no problem getting into the flesh as well.

Kevin J. VerSnyder
VerSnyder Orchards
Lake Leelanau, MI
Cell-(231)866-0469
> On Sep 18, 2017, at 1:10 PM, Glen Koehler  wrote:
> 
> Case in Maine that appears to be SWD attack on intact peaches without splits 
> or other prior wounds.  These peaches were ripening on the tree but not 
> over-ripe and no splits etc. for easy drosophila oviposition without having 
> to cut through skin.  Until now it seemed that SWD could only lay eggs in 
> peaches with pre-existing wound.  Have other folks seen SWD infestation of 
> intact peaches?   
> 
> 
> Glen Koehler
> University of Maine Cooperative Extension
> Pest Management Office
> Voice:  Office 207-581-3882,   Cell  207-485-0918
> 491 College Avenue, Orono, ME  04473
> UMaine Apple IPM https://extension.umaine.edu/ipm/programs/apple/
> Ag-Radar https://extension.umaine.edu/ipm/ag-radar-apple-sites
> Our Changing Climate: It's Real, It's Us, It's Bad, Experts Agree. There's 
> Hope
> 
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Re: [Apple-Crop] SWD

[Arthur Kelly]

That's what I thought, just thought I'd put it out there.  There might be
site to site differences based on the previous years population?

On Mon, Aug 7, 2017 at 5:05 PM, Jon Clements  wrote:

> Hi Art, don't call me the SWD "expert" but I seen enough of them this
> year, all you need is two to "migrate" in, do the "tango" (see attached)
> and then you got an "indigenous" population. Make sense? Sanitation,
> keeping up with harvest of sound fruit, and insecticides are the "control"
> foundation...
>
> Jon
>
> On Sun, Aug 6, 2017 at 12:18 PM, kellyorchards 
> wrote:
>
>> Does SWD migrate in or is the population mostly indigenous.
>>
>>
>>
>>
>> Art Kelly
>> Kelly Orchards
>> Acton, Maine
>>
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>
>
> --
> JMCEXTMAN
> Jon Clements
> cleme...@umext.umass.edu
> aka 'Mr Liberty'
> aka 'Mr Honeycrisp'
> IM mrhoneycrisp
> 413.478.7219 <(413)%20478-7219>
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-- 
Art Kelly
Kelly Orchards
Acton, ME
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