All Coppers Are Not Created Equal | 農藥合法資訊網

2020年1月1日—Copperfungicidesrepresentoneofthebroadest-spectrumgroupsinour...bethree,fromcoppertoBacillusandfinallyFRAC7fungicides(aloneorin...in1887,copperoxychlorideinabout1900andcuprousoxidein1932.

1/1/2020

Author’s note: About 10 years ago, I reviewed fungicides in six different FRAC groups including FRAC M1 - Copper. The current series will only be three, from copper to Bacillus and finally FRAC 7 fungicides (alone or in combination with another FRAC group). This is the first one.

Copper was one of the first fungicides developed and was used to combat disease of grapevines (like black rot) and fruit (like apple scab). In the 1800s, copper sulfate pentahydrate was formulated with lime into “Bordeaux mix,” which was more effective and safer. Many other types of coppers followed with basic copper carbonate and copper ammonium carbonate first used in 1887, copper oxychloride in about 1900 and cuprous oxide in 1932. Since then, even safer (to the crop) and more effective copper fungicides have been developed, including copper linoleate (Camelot in 1964) and coppe...