Systemic fungicides(R.D.Sowmya)2021004107.pptx

Agriculture

1. SYSTEMIC FUNGICIDES AND ITS USES R.D.SOWMYA 2021004107

2. SYSTEMIC FUNGICIDES Fungitoxic compound that controls a fungal pathogen from the point of application and that can be detected and identified. Discovered in 1966 by Von Schmeling and Kulka . Coming from the roots, these compounds move into all organs that transpire

3. Benzimidazoles Common name Trade name Disease controlled Mode of action Benomyl Benlate, Benomyl Pre and post harvest spray for post harvest diseases ;blast,scab,powdery mildews, Verticillium and Rhizoctonia Exerts its toxic role by inhibiting microtubule formation in the nervous system Carbendazim Bavistin, Tagstin Leaf spots and rusts; Fusarium and Cercospora Interference in biosynthesis of DNA during fungal division

4. Benzim Carbendazim Benomyl Thiabendazole Thiabendazole Botyti , Cercospora, Ceratocystis, Septoria, Colletotrichum, Fusarium, Rhizoctonia Inhibit the helminth- specific enzyme, fumarate reductase

5. Oxathiin & related compounds Common name Trade name Disease controlled Mode of action Carboxin Vitavax Seed treatment for smuts and bunts; seed and soil borne pathogens ; Rhizoctonia Prevents the growth of yeast by inhibiting protein synthesis Oxycarboxin Plantvax Puccinia on cereals, pulses,ornamentals, vegetables and coffee Inhibition of succinate dehydrogenase &bind to the enzyme complex

6. Carboxin Oxycarboxin

7. Morpholines Common name Trade name Disease controlled Mode of action Tridemorph Calixin Powdery mildews and rusts; Ganoderma , Exobasidium vexans , Mycosphaerela musicola At lower concentrations this compound inhibits sterol biosynthesis in various organisms. Dodemorph Meltatox Diplocarpon rosae and powdery mildew  It has a role as  a sterol biosynthesis inhibitor and an antifungal agrochemical .

8. Pyrimidines Common name Trade name Disease controlled Mode of action Triademefon Bayleton Powdery mildews ,rusts blocks dopamine reuptake by binding to the dopamine transporter Triadimenol Bayton Powdery mildews ,rusts inhibition of demethylation

9. Organo phosphorus compounds Sdfsdfsdgdf vc Common name Trade name Disease controlled Mode of action Pyrazophos Afugan , Curamil , Missile Powdery mildew of all crops primarily affects nerve impulse transmission Iprobenphous (IBP) Kitazin Blast and sheath blight inhibition of phospholipid synthesis

10. Phenol derivative Common name Trade name Disease controlled Mode of action Chloroneb Demoson Seedling diseases, Rhizactonia , Pythium , Fusarium , Puccinia spp . Causes a lysis of the inner mitochondrial membrane of sensitive fungi

11. Triazole compounds Common name Trade name Disease controlled Mode of action Hexaconazole Contaf, Excel Powdery mildew and rust Protective, Curative, Eradicative. Prevent spore formation Propiconozole Tilt Rusts, powdery mildew and sigatoka demethylation inhibitor of sterol biosynthesis Tebuconazole Folicur Powdery mildews, rusts, leafspots etc interferes in process of building the structure of fungal cell wall

12. Penconozole Topas Powdery mildew, rusts, leafspots etc stops the development of fungi by interfering with the biosynthesis of sterols in cell membranes Difenoconozole Score Powdery mildews , rusts, leafspots etc sterol demethylation inhibitor  which prevents the development of the fungus by inhibiting cell membrane ergosterol biosynthesis

13. Contaf Topas Score

14. OTHER SYSTEMIC FUNGICIDES Common name Trade name Disease controlled Mode of action Metalaxyl (phenyl amide compounds) Apron , Ri domil, K iralaxyl Peranosporales interferes with DNA synthesis by inhibiting the growth of mycelium Metalaxyl + mancozeb (8%+64%) Ridomil MZ -72 Damping off, downy mildew, late blight systemic fungicide with protective and curative action Tricycalzole Beam, Sivic,Gain , Profit B last inhibiting melanization within the appressorium Fosetyl – Al (Alkyl phosphate) Al litte O omycetes Azoxystrobin Amistar Broad spectrum

15. Metalaxyl Tricyclazole

16. Ridomil Profit Amistar