fungicides and oils

[lawnaggie]

is it a bad procedure to mix horticultural oil with fungicides? (banner maxx or eagle)

 

[John Paul Sanborn]

Depends on what the label says.

Read the lable, for it is the law.

It's been a few years, but I seem to remember using oil with Cleary's 336/Banner Maxx.

Watch out for eagle on Barberry, it is hot on the leaves, especialy the red leaved japonica.

 

[jimmyq]

normally safest bet is not to mix unless specified that it is ok. Dormant or mineral oil is fairly inert but.. oil can act as a surfactant and increase permeability or absorbption of the other product(s) mixed with it possibly causing emotional response (aka leaf burn, dieback) of the plant that has had the concoction applied.

 

[phasthound]

I know this is way late for a reply, but never mix oils & fungicide unless you want have a nasty chemical burn!