White substance on plants

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lovelybajan Ch. Ch, Barbados Sep 10, 2009

Please ID this substance/bug and how to kill/stop it. It is on my Devils trumpet and on my small palm plant.

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pastime Waterman, IL(Zone 5a) Sep 10, 2009

Looks like Mealy Bugs. Do a Google search. There should be remedies available for you to try.

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dp72 Woodway, TX(Zone 8a) Sep 10, 2009

Mealy bugs are usually on the underside. It's hard to tell from the picture, but these spots don't look like the mealy bugs I have seen.
As to what they ARE, I don't know.

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lovelybajan Ch. Ch, Barbados Sep 10, 2009

i thought it was the mealy bug too.but could it be from gramoxzone?

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themoonhowl Prairieville, LA(Zone 9a) Sep 10, 2009

Lovelybajan, gramoxzone is an herbicide generally used in agricultural applications. Have you used it around your plants?

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lovelybajan Ch. Ch, Barbados Sep 10, 2009

no, not on my plants, but my neigbour sprays his weeds, so i was wondering if some of the spray went on the plant by mistake.and caused the spots.

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themoonhowl Prairieville, LA(Zone 9a) Sep 10, 2009

I spoke with my husband about the possibility of gramoxzone damage, as he works for Syngenta, the company that manufactures/packages Gramoxzone. He said it works as a defoliant and could very probably cause the damage you see. He was not hopeful for the survival of the plants. Gramoxzone is paraquat and works fairly quickly. You can remove the damaged leaves and wash the plant down with water very well, but it may not save the plant. He suggested you speak with your neighbor as it would seem he is being reckless with a really dangerous substance....

http://pmep.cce.cornell.edu/profiles/extoxnet/metiram-propoxur/paraquat-ext.html

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lovelybajan Ch. Ch, Barbados Sep 10, 2009

thank you all for your help.

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themoonhowl Prairieville, LA(Zone 9a) Sep 10, 2009

You are very welcome, please post an update on the fate of your plants.

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