About Joan Expertise Prickly pear, saguaro, barrel cactus, house cacti... You name it! I will answer all your questions regarding cacti such as winter care, propagation, watering, and indoor care. I will also answer questions on edible cacti (for humans or pets) and identification. In addition, I may answer questions on other succulent plants, such as the agave.
Experience Due to the arid climate here in Nevada, I grew up planting cacti and shrubs to design my landscapes. As years went on, I learned the different ways on taking care of these amazing cacti, especially how to propagate them.
Education/Credentials During the past few years, I have tried out many methods in growing cacti, especially when it comes to propagation. I learned the dangers of over-watering, and have researched that people often make common mistakes. That is why I joined to be part of AllExperts.
Question several differnet broad leaf cactus have begun showing large white round spots at this point cannot tell if dying off but are disfiguring cactus badly how do I stop or fix this
Answer Hello Bryan,
The white patches (which look like cotton} is what is known as cochineal scale. It was actually produced by little black bugs as a protective coating. If you squeeze it (I don't recommend doing so with your fingers), you will see a red liquid that comes out. This infection is fatal to your cactus if spread. Take some dish soap and mix it with water. Place the water in a spray bottle and spray it all over the infections. Then take your hose and blast the water at the cactus and its infected areas.
