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What could this be?

Post  LeeAnne12 on 5/24/2012, 10:40 pm

...so I was going around checking my plants this morning and something has bored a hole in one of the asparagus stalks. I have looked on the internet and can't find anything that it could possibly be. This afternoon, the stalk was bent over. Does anyone have any idea what it might be?

Thanks,

Lee Anne
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Re: What could this be?

Post  Lindacol on 5/25/2012, 12:58 am

@LeeAnne12 wrote:...so I was going around checking my plants this morning and something has bored a hole in one of the asparagus stalks. I have looked on the internet and can't find anything that it could possibly be. This afternoon, the stalk was bent over. Does anyone have any idea what it might be?

Thanks,

Lee Anne

I have no experience with asparagus but a quick search came up with this:



Asparagus Miners


Asparagus miners are winged pests with a black hump-backed body. This pest causes damage to asparagus growing throughout southeastern portions of Canada as well as the northeast portion of the United States, including North Carolina and Tennessee. This pest has also been identified in Europe, Hawaii and California.

Asparagus miners cause damage to the plant by tunneling into the spear itself at the point where the spear meets the plant base. As this pest infests the plant, tissue within the stalk begins to break down, resulting in the presence of brown streaks on the spear. Wasps such as Dacnusa rondani and Sacnusa bathyzona are natural predators of these miners and are released to control infestations. Prevent these pests from successfully overwintering by ridding the plant of any unused spears at the end of the fall.


Last edited by Lindacol on 5/25/2012, 12:59 am; edited 1 time in total (Reason for editing : spelling)
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Re: What could this be?

Post  LeeAnne12 on 5/25/2012, 7:33 am

Asparagus miners cause damage to the plant by tunneling into the spear itself at the point where the spear meets the plant base

Hi Linda. Thanks for your response. I saw this, too, when I was searching, but didn't think this was what was doing it. I could be totally wrong, though. The hole is about 2 to 2 1/2 feet from the base of the plant. Do you think it could still be one of the miners?

Thanks,

Lee Anne
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Re: What could this be?

Post  curio on 5/25/2012, 9:31 am

how big is the hole, and is it perfectly (or near perfectly) round, or does it have sort of jagged edges?
We have issues sometimes with baby slugs chewing just enough of a stem to form a hole and weaken the plant at that point, so it falls over.
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Re: What could this be?

Post  LeeAnne12 on 5/25/2012, 12:00 pm

Jan, it is oval...maybe an eighth of an inch across. When I first saw it there was the waste where it had bored through.

Lee Anne
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