Beware alternate pest treatments. Over time the chemicals can build up in the potting media and kill your plant. For example, a home made spray for mealies on orchids resulted in the almost death of same. It was brought back to life after long water purging over several months and re-potting. The spray was some isopropyl, Murphy's soap and water. The isopropyl is toxic to plants. I am currently using it on a Hippeastrum calyptratum as a dauber with careful sponging later. Best, Joyce Miller, Gresham, OR