My Hydrangea had brown edges on the leaves so I applied Immunox combo
systemic pesticide & fungicide...Now it looks worse! Here in Minnesota
fungus is SOP in late summer but I never had it resist a fungicide. Anyone
else had experience with Immunox and Hydrangeas?

I hope I didn't kill it!
Ron H.


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The problem is that you sprayed a product on your hydrangea without knowing
what was wrong with it. Are your hydrangeas sited in full sun? If they are,
they are probably just scortched a bit from too much sun. Some pesticides can
cause damage to certain plants. There should be information on the label
telling you what plants it should not be applied to. I dont want to sound like
a jerk, but you really should gather more information about a problem before
you apply any sort of chemical to your plants. You should also read the label
thouroughly so you know how to properly apply it and for saftey reasons. If I
felt like I was sick, I would go to the doctor and find out what was wrong with
me, rather than raid the medicine cabinet and eat a bunch of pills. The same
thing can be applied to the landscape, if you have a problem, take a sample to
your local nursery and someone should be able to help you. I hope your
hydrangea pulls through, but more than likely you just needed to water it.

Toad

Thanks for your comments. Actually I did talk to a local garden center and
they said that it was a combination of heat stress ( we've been in mid 90's
for a couple of weeks) and a fungal attack. They recommended a fungucide. I
selected the Immunox because I had it on hand ( use it on the roses where it
works great). The label neither included nor excluded Hydrangea and it
claimed to be usefull on many garden and flowering plants. It did caution to
try it on one plant before treating everything but since I only have one
Hydrangea.....


Ron H.