Cactus Not Doing Well


We get a follow up from a previous question, and it’s not looking better.

Hi Hap –

I’m not sure if the cactus is better. I’ve used the milk solution weekly, the good news is that the scaly bugs have significantly reduced. However, the browing doesn’t seem to be improving and seems to have spreaded.

cactus

I appreciate any additional input.

Thanks,
Tish

Tish,

It looks like you need to spray with something more aggressive than milk and baking soda. I would suggest trying a Neem Oil spray, in a 1 or 2% solution. Retreat with Neem about every week to ten days for three or four treatments. You should also “paint” the dark brown spot on the lower part of the cactus in one of your photos with hydrogen-peroxide to stop the infection there from spreading and turning in to rot.

If you would like, you can bring it by the nursery and we can do the first treatment with you, so you can see just how we do it and we can make sure we are making the correct recommendations.

Talk to you soon,

Hap


    
    
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