my cactus have developed brown spots on the pads.this is killing the cactus. the spots quickly grow and the pads turn brown and fall off. can i fix it? the cactus are nearly ten years old. my e-mail is osnixpero@yahoo.com

Plant wash is a product you might try next time you get the brown pads on the cactus. For information regarding this product, so a search on this website. Also, you might try straigh hydrogen peroxide (the 3% solution you find in the grocery store). Put some in a spray bottle and spray it on the plant.