Quinone fungicides 20 Sulfer Fungicides 18 Copper fungicides 12 Diearboximid fungicides 12 Mercury fungicides 12 Systemic fungicides 12 Benzene fungicides 8 Plant - Bacterial Diseases 8 Plant - Fungus Diseases 8 Plant - Virus Diseases 8 Plant Disease Control 8 Plant Protection 8 Copper Fungicides 6 Diearboxmid Fungicides 6 Mercury Fungicides 6 Quinone Fungicides 6 Systemic Fungicides 6 Dissertations, Academic (Ph.D) 1 NATURALLY OCCURRING QUINONES 1 Quinone 1 Ring formation (Chemistry) 1 Thesis (Ph.D)-Chemistry 1 Thioquinone 1