Patent ID: 6340468
Filing Date: 2002-01-22
Classification: A01N,C02F

Abstract:
A method of killing a target aquatic pest selected from the group consisting of viruses, protists, fungi, molds, plants, holoplanktonic organisms, meroplanktonic organisms, demersal organisms, benthic organisms, detached or floating biota, bacteria whether or not encysted, protozoans, algae, pyrrophyta, cryptophyta, chrysophyta, porifera, platyhelminthes, pseudocoelomates, anelid worms, mollusks, bivalves, crustaceans, larval-adult forms of copepods, ostracods, mysids, gammarids, larval forms of decapods, and larval teleost fish in water infested with said target aquatic pest, said method comprising the step of:applying to water infested with said target aquatic pest an amount that is elective to kill said target aquatic pest of a naphthalenedione compound which has the chemical structure of: wherein:R1 is hydrogen or methyl, R2 is hydrogen, methyl, sodium bisulfate, chloro, acetonyl, 3-methyl-2-butenyl or 2-oxypropyl; R3 is hydrogen, methyl, chloro, methoxy, or 3-methyl-2-butenyl; R4 is hydrogen or methoxy; R5 is hydrogen or methyl; R6 is hydrogen.