BonideSulfur Plant Fungicide, 4 lb. Ready-to-Use Micronized Spray or Dust for Organic Gardening, Controls Common Diseases

pure sulfur in the bag, no issues. i may have bought too much, i think im set for life. hooray sulfur cream

I use this product on all of my Desert Roses to keep the fungus down in the hot humid summer months. Makes a great drench for pots as well as a spray for the foliage. Even works well when used for cuttings.I think it's safer to use than copper as it will not burn the plants.

This powder is pure sulfure and effective in fighting mold, and fungi on plants, and may deter thise annoying wet mold gnat flies in house plants. It can also help adjust the soil Ph. However, it claims it is "wetable," and you "can add powder to garden sprayer bottle," but it clogs the sprayer if you have any other chemicals, especially the oil based ones added to enhance clinging to plants' leaves, bark. Still recommend purchase as it is a naturally occurring element that gets the job done without the addition of poisonous forever chemicals.

After trying a few other things for the extensive powdery mildew infestation, I purchased this. It worked in one try. I've been spraying weekly with a Copper Fungicide & even tried a home remedy with Baking Soda. But nothing was touching my powdery mildew problem. I saw this & figured I'd try something else. In one application, it has obliterated the mildew which is especially bad this season. It does have a slight sulfur smell but nothing too awful. And I can live with a mild smell if it kills the powdery mildew. Will definitely be using this the next time I have an outbreak.

A great product from a reputable brand, but I was surprised to find that the plastic bag it is sold in is not resealable. So I have a bag full of fine powder that I need to keep closed with a clip or something.

I use this powder to help with storing dahlia tubers.

My drift roses have had black spot and powdery mildew for years. I have tried 4 - 5 different types of treatments to control it but nothing was good. Some of the products were ok at best. I have used this twice now and my roses look amazing. This is the best they have been in the 9 yrs since they were planted. I really wish I had known about this sooner. LOVE IT!

The instructions indicate that this product can be "dusted" or diluted and sprayed. I opted to dust. the consistency is very fine so it is important not to apply it if there is any wind. I did a couple of applications on marigolds that I believe had been affected with powdery mildew and did not notice any marked improvement. I bought another product (Bio Advanced Insect, Disease and Mite Control) that can be sprayed and seems to be working better.