I usually get Brown Spot on my tomato plants every year and/or Leaf Septoria. Except for this year. Because I did a heavy regiment of fungicides.
After I added fertilizer and rototilled and a day before I planted anything I sprayed, actually soaked all the dirt in my raised garden with Dr Earth Final Stop Disease Control Fungicide that you connect to a hose. And its side boards, and posts, and my garage, and my yard fence i.e. everything nearby. My intent was to kill any spores that overwintered on anything nearby.
Before I transplanted my tomatoes I soaked them good right side up and upside down using a spray bottle of InFuse. Before I put any trellises in place I sprayed them down with a mixture of Dr Earth Final Stop Disease Control Fungicide & Southern Ag Liquid Copper. Two weeks after planting I mulched the garden and once done I sprayed the mulch with a bottle of Dr Earth Final Stop Disease Control Fungicide connected to a garden hose. Who knows what the mulch could be carrying.
Then 3 weeks after planting I sprayed the plants, soaked every one dripping wet with Southern Ag Liquid Copper Fungicide. Two weeks after that I sprayed the plants again, soaked every one dripping wet with Daconil & Southern Ag Liquid Copper Fungicide. It’s been another three weeks so time to hit everything again with a mixture of Dr Earth Final Stop Disease Control Fungicide and Plant Doctor Fungicide.
I picked these four fungicides for a number of reasons, one being to use different fungicides so the fungus’s don’t build up a tolerance. And the Southern Ag Liquid Copper Fungicide because its copper is in a form that works the best and better then InFuse or any one’s copper soap.
Bottom Line. I have kept Brown Spot, Leaf Septoria, and Powdery Mildew, which usually devastates my zucchini, at bay this year, first time in decades. Early on I had what looked to be Downy Mildew on my cucumbers which some say you can’t stop once it appears but fungicide bottles say they can, and now my cucumbers are doing great.
Dr Earth is mainly essential oils, rosemary, clove, and peppermint, Plant Doctor Systemic Action Fungicide is Potassium and Phosphorous both things plants need, copper is copper everything needs copper to live, Daconil is the only one that concerns me and I’m keeping an eye out for a substitute.
The 4 Fungicides I use:
Dr Earth Final Stop Fungicide
Plant Doctor Systemic Action Fungicide
Southern Ag Copper Fungicide