Argentinian Ants (Linepithema humile)

Use this section to discuss matters relating to any and all issues involving horticultural pest and disease management. This is where one posts unknown pest/damage photos for ID help.
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jthiel23
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Joined: Fri Dec 15, 2017 11:59 am

Argentinian Ants (Linepithema humile)

#1

Post by jthiel23 »

I live in the Bay Area in California and my entire yard is practically covered in Argentinian ants. Many of my pots have colonies in them and when I water they hold little flood evacuation drills that almost cover the plant in ants. I have had this problem for several years now and they hasn't seemed to hurt any of my cacti, agaves or other various succulents, but I am not really sure.

Should I be concerned? Are they harming my plants by living in the pots? If so, what should I do?

Thanks for any insight or advice.

Justin
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Azuleja
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Location: CA | Zone 9a | Chaparral

Re: Argentinian Ants (Linepithema humile)

#2

Post by Azuleja »

Well, ants often farm aphids and spread pests like mites and mealies from plant to plant. They had quite an aphid operation running for a while here. I used abamectin granules (Advance) to kick them out of our yard.
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jthiel23
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Joined: Fri Dec 15, 2017 11:59 am

Re: Argentinian Ants (Linepithema humile)

#3

Post by jthiel23 »

Thanks.
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