algae control

Because Phytophthora species are close relatives of brown algae, algae control methods may be useful in reducing water infestation by Phytophthoras. Check out this tip on the WA Adopt-A-Stream website:

"Are you experiencing problems with algae in small lakes or ponds? A recent issue of Organic Gardening magazine (May/June 1999) reported that by using nylon sacks filled with barley straw can severely retard algal growth. The results have been duplicated by British researchers, but thus far, the researchers are unable to explain how and why it works. Organic Gardening recommends practitioners use three ounces of barley straw per square yard of a pond's surface for best results. Wheat straw and corn stalks are also effective, but must by applied at slightly higher concentrations. These methods are both inexpensive and more importantly, are harmless to fish."