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Old 05-26-2013, 02:26 PM
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Phals. in distress.

edmonton-shahla-house-26-may-2013-006.jpgHi ! Geeks !

I am visiting a friend in Edmonton CA, found beautiful orchids(Phals.) Dying!!
Attached photos can tell the story clearly.
I am reluctant to give advice, they are full of white aphids, on blooms which are dying and many leaves have white powdery substance----some are moving insects.

Please recommend what I should use on these5 Phals. to revive them otherwise they will all die.: confused:

Thanks
Zaeem
I have Not examined the Roots yet.
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Old 05-26-2013, 03:08 PM
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Phals. in distress.

Attachment 62313Hi ! Geeks !

I am visiting a friend in Edmonton CA, found beautiful orchids(Phals.) Dying!!
Attached photos can tell the story clearly.
I am reluctant to give advice, they are full of white aphids, on blooms which are dying and many leaves have white powdery substance----some are moving insects.

Please recommend what I should use on these5 Phals. to revive them otherwise they will all die.: confused:

Thanks
Zaeem
I have Not examined the Roots yet.
Attached Thumbnails
edmonton-shahla-house-26-may-2013-004.jpg   edmonton-shahla-house-26-may-2013-005.jpg  
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Old 05-26-2013, 03:52 PM
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Phals. in distress.

[ATTACH][ATTACH]orchids-phal.-attacked-by-aphids-004.jpg[/ATTACH][/ATTACH]Hi!

Some more photos of the pests.

zaeem
Attached Thumbnails
orchids-phal.-attacked-by-aphids-001.jpg   orchids-phal.-attacked-by-aphids-003.jpg   orchids-phal.-attacked-by-aphids-005.jpg  
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Old 05-26-2013, 03:56 PM
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I use Bayer brand 3 in 1 for aphids and it works great! I would probably cut the flower spike since there are bugs already all over it and trash it. Let it produce a new one when it recovers.
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Old 05-26-2013, 04:09 PM
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I believe those are mealybugs, not aphids. The systemic component in the Bayer product will help you get rid of them, but they are difficult and you need to be persistent in your spray program. That's a pretty bad infestation, and they are probably in the medium also, so I would recommend repotting with well-scrubbed pots, clean medium, and the Bayer spray applied to the whole plant.

Keep checking for bugs after this process. Most likely, you will find they reappear in a couple of weeks or so and you will need to re-spray, maybe several times. It's not easy to totally banish the little devils, but it can be done. (Can you tell that I have some experience in this area? Ick!)
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Old 05-26-2013, 04:40 PM
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Hi-

One of my very first orchids came with mealy bugs and I couldn't afford to purchase an effective spray. I took an aggressive approach using isopropyl alcohol, cotton swabs and even toothpicks and swabbed, dabbed and dug out any slight hint of mealy bug presence. It took daily surveillance and months before they were finally gone.

Good luck,

Cheers
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Old 05-26-2013, 05:23 PM
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Fishmom and Neo Hi!
Thanks. I will have to shop for Bayer systemic spray and alcohol cotton dab and repot in fresh mix. they are 5 phals. will try recover and leave guidelines to the hobbyist here.
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Old 05-26-2013, 05:46 PM
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Hi zaeem
I realize you are in Karachi. You may not have access to the same systemic spray we have here in the U.S., but any systemic insecticide should do the trick. The alcohol/toothpick method will be a good backup between sprays, as you can't spray weekly if you are following the directions. Good luck!
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Old 05-26-2013, 07:44 PM
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Fishmom Hi!

Thanks. I am in Edmonton Canada. Please let me know the store likely to have the systemic insecticide.
I did visit Canadian tire, none there. Maybe WalMart may have or any nursery.
Thanks
zaeem
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Old 05-26-2013, 08:20 PM
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Canada has different rules about chemicals from the U.S., I know. A good rule of thumb is that if the product is safe for roses, it is probably OK for orchids, too. If you have access to a real nursery, they should be able to tell you what is available and would be effective for mealybugs.

For what it's worth, the ingredients of the Bayer 3-in-1 are imidacloprid, tau-fluvalinate, and tebuconazole. Imidacloprid is thought to be harmful to bees, so I would be cautious about using it on outdoor plants.

Were you once in Karachi?
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Old 05-26-2013, 09:08 PM
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mealy bugs

Fishmom Hi!
Thanks.

I am on vacation in Canada, but my home is in Karachi.

Thanks for the valuable advice.
zaeem
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Old 05-26-2013, 09:11 PM
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In addition to the good advice already given, I would suggest that each plant be removed from it's pot and carefully cleaned. For cleaning, I would suggest what is called "http://www.orchidgeeks.com/forum/orc...tuff-ever.html" See third post in the link provided. It is a good cleaner, and mildly insecticidal. Apply to the leaves, including crevices at the base of the leaves. Use a small artist's paint brush (type used for watercolor painting) to work it down into crevices. I rinse it off after leaving it on the leaves for 15 minutes or so. For roots, remove the old growing medium, then wash the roots with plain running water to remove loose debris.

When you think everything is clean, spray the roots, leaves, everything with the Bayer spray (or locally available equivalent product, assuming the ingredients and concentrations are similar). I have done this to Paphiopedilums that have much more sensitive roots, without causing harm. I spray the same thing on the new potting mix before re-potting, then go ahead and re-pot. You need to re-apply the Bayer product, or equivalent, at the intervals recommended on the package (7 to 14 days for the Bayer product; the first 2 weeks I would apply once per week to the leaves & surface of the potting mix, then once every week and a half for the next 3-4 weeks).

Good luck!
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Old 05-27-2013, 03:53 PM
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Thank you all for wonderful advice. I started doing the needful, but my hostess called vendors for potting mix, and they were happy to replace the plants within the warranty of 1 year. Fortunately 1 year is not over, so here we go good luck. I had started doing plants finished 2 out of 5,but the home Depot said mealy bugs will not go away?

Replace is better option, and saves time.
They will probably incinerate the Phals. or garbage them I don't know? Big plants I am so. sad
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Old 05-27-2013, 05:51 PM
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Can they be saved? Probably, with significant effort.

Is it worth it? That is very subjective. What to do is up to the owner.

Good luck to you, either way.
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Old 05-27-2013, 08:16 PM
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Huh, good luck for your friend, bad luck for the plants! It's true, though, that mealy bugs are REALLY hard to eliminate. And they seem to love phals!

Enjoy the rest of your vacation, and greetings to your friend. Can you recruit her for the website? We'd love to see her sign on here, it would be like the second chapter of a story!
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