logging in or signing up jasmine diseases, sriniganesan, ac&ri,madurai sree279 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 2015 Category: Education License: All Rights Reserved Like it (4) Dislike it (0) Added: October 04, 2007 This Presentation is Public Favorites: 0 Presentation Description No description available Comments Posting comment... Premium member Presentation Transcript PAT-301 DISEASE MANAGEMENT IN CROPS (2+1) : PAT-301 DISEASE MANAGEMENT IN CROPS (2+1) Course Teacher Dr. Theradimani Dr. ParamasivanDiseases of jasmine: Diseases of jasmineSlide3: Fusarium wilt - Fusarium solani Sclerotium wilt/ Southern blight - Sclertium rolfsii Alternaria leaf blight - Alternaria jasmini Leaf spot - A. alternata C. Leaf spot - C. jasminicola Phoma leaf spot - Phoma herbarumSlide4: Powdery mildew –Odium jasmini Anthracnose – Colletotrichum jasminicola Rust – Uromyces hobsonii Phyllody – MLO FUSARIUM WILT: FUSARIUM WILT Causal organism – F. solani on J. sambac Symptoms: Yellowing of lower leaves which gradually spreads upwards and finally results in death of the plant. Root shows black discolouration Slide6: MANAGEMENT: Collection and destruction of diseased plants Soil drenching with 0.1% Carbendazim SCLEROTIUM WILT: SCLEROTIUM WILT Causal org: S. rolfsii Symptoms: Whitish mycelial growth can be seen adhering to the surface of the roots and also on the soil at the root region of the affected plants. Slide8: Mode of spread & survival: In the soil as sclerotia MANAGEMENT: Soil drenching with 0.1% bordeaux mixtureALTERNARIA LEAF BLIGHT: ALTERNARIA LEAF BLIGHT Causal Org: A. jasmini Symptoms: Dark brown spot on affected leaves In each lesion concentric rings characteristics of A. leaf blight can be seen. Oval to elongated brown spots develop on petioles, stem, calyx and even on tubular corollaSlide10: Mode of spread and survival Wind borne conidia Management: Spraying with 0.1% carbendazim Spraying can be repeated at 7-10 days intervalALTERNARIA LEAF SPOT: ALTERNARIA LEAF SPOT C. org: A. alternata Symptoms: Spots which are mostly marginal start from the tip of the leaves and proceeds towards petiole end. Irregular wood brown lesions are separated from healthy tissue by dark coloured bands. In lateral stage shot hole symptoms are visibleSlide12: Management: Spraying with 0.2% mancozeb 75% w.p or 0.2% copper oxychloride 50% w.pCERCOSPORA LEAF SPOT: CERCOSPORA LEAF SPOT C. org: C. jasminicola Symptoms: Spots are sub-circular to irregular, 4-8 mm in dia. Reddish brown and often with the slightly darker border. In later defoliation and die-back of twigs.Slide14: Mode of spread & survival : Wind borne conidia Management: Spraying with 0.1% benomyl or 0.3% Copper ox chloride or 0.1% carbendazim 50 % w.p PHOMA LEAF SPOT: PHOMA LEAF SPOT C.org: Phoma herbarum Symptoms: Initially the spots appears as small, circular and light brown . Lateral they increase in size , coalesce and turn into brownish to ashy necrotic areas.Slide16: PYGNIDIUM OF PHOMAPOWDERY MILDEW: POWDERY MILDEW C. org: O. jasmini Symptoms: White powdery patches on the upper surface of the leaves. Mode of spread: Wind borne conidiaANTHRACNOSE: ANTHRACNOSE C. org: C. jasminicola Symptoms: Large, circular, distinct, brownish to greyish spots outlined with brown to yellowish haloes appears on the upper surface of the leaves.Slide19: Mode of spread & survival: Wind borne conidia Management: Spraying with 0.2% zineb or 0.3% copper oxy chloride RUST: RUST C. org: U. hobsonii Symptoms: Leaf appears as orange coloured pustules on both the surface of leaves. Numerous blisters occur. Infected portions become hypertrophied. Buds do not open Splitting of barks. Slide21: Mode of spread& survival: Spreads through wind borne uredospores Management: Dusting of sulphur at 20-25kg/ha or spraying mancozeb 0.2% or Bayleton 0.05% PHYLLODY: PHYLLODY C. org: MLO Symptoms: Affected plants are bushy. Leaves are small, malformed and are closely arranged. Mode of spread: By “ white fly”and by grafting Slide23: MANAGEMENT: Cuttings for new planting should be obtained from disease free plantsOther Diseases: Other Diseases Septoria leaf spot - S. altehsonii Fulvia leaf mould - F. fulva Spot anthracnose - Elsinoe jasminae Leaf blight & stem blemish - Cylindorsporium sp. B. Leaf spot - X. campestris pv. Jasminii Chlorotic ring spot - Virus You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
jasmine diseases, sriniganesan, ac&ri,madurai sree279 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 2015 Category: Education License: All Rights Reserved Like it (4) Dislike it (0) Added: October 04, 2007 This Presentation is Public Favorites: 0 Presentation Description No description available Comments Posting comment... Premium member Presentation Transcript PAT-301 DISEASE MANAGEMENT IN CROPS (2+1) : PAT-301 DISEASE MANAGEMENT IN CROPS (2+1) Course Teacher Dr. Theradimani Dr. ParamasivanDiseases of jasmine: Diseases of jasmineSlide3: Fusarium wilt - Fusarium solani Sclerotium wilt/ Southern blight - Sclertium rolfsii Alternaria leaf blight - Alternaria jasmini Leaf spot - A. alternata C. Leaf spot - C. jasminicola Phoma leaf spot - Phoma herbarumSlide4: Powdery mildew –Odium jasmini Anthracnose – Colletotrichum jasminicola Rust – Uromyces hobsonii Phyllody – MLO FUSARIUM WILT: FUSARIUM WILT Causal organism – F. solani on J. sambac Symptoms: Yellowing of lower leaves which gradually spreads upwards and finally results in death of the plant. Root shows black discolouration Slide6: MANAGEMENT: Collection and destruction of diseased plants Soil drenching with 0.1% Carbendazim SCLEROTIUM WILT: SCLEROTIUM WILT Causal org: S. rolfsii Symptoms: Whitish mycelial growth can be seen adhering to the surface of the roots and also on the soil at the root region of the affected plants. Slide8: Mode of spread & survival: In the soil as sclerotia MANAGEMENT: Soil drenching with 0.1% bordeaux mixtureALTERNARIA LEAF BLIGHT: ALTERNARIA LEAF BLIGHT Causal Org: A. jasmini Symptoms: Dark brown spot on affected leaves In each lesion concentric rings characteristics of A. leaf blight can be seen. Oval to elongated brown spots develop on petioles, stem, calyx and even on tubular corollaSlide10: Mode of spread and survival Wind borne conidia Management: Spraying with 0.1% carbendazim Spraying can be repeated at 7-10 days intervalALTERNARIA LEAF SPOT: ALTERNARIA LEAF SPOT C. org: A. alternata Symptoms: Spots which are mostly marginal start from the tip of the leaves and proceeds towards petiole end. Irregular wood brown lesions are separated from healthy tissue by dark coloured bands. In lateral stage shot hole symptoms are visibleSlide12: Management: Spraying with 0.2% mancozeb 75% w.p or 0.2% copper oxychloride 50% w.pCERCOSPORA LEAF SPOT: CERCOSPORA LEAF SPOT C. org: C. jasminicola Symptoms: Spots are sub-circular to irregular, 4-8 mm in dia. Reddish brown and often with the slightly darker border. In later defoliation and die-back of twigs.Slide14: Mode of spread & survival : Wind borne conidia Management: Spraying with 0.1% benomyl or 0.3% Copper ox chloride or 0.1% carbendazim 50 % w.p PHOMA LEAF SPOT: PHOMA LEAF SPOT C.org: Phoma herbarum Symptoms: Initially the spots appears as small, circular and light brown . Lateral they increase in size , coalesce and turn into brownish to ashy necrotic areas.Slide16: PYGNIDIUM OF PHOMAPOWDERY MILDEW: POWDERY MILDEW C. org: O. jasmini Symptoms: White powdery patches on the upper surface of the leaves. Mode of spread: Wind borne conidiaANTHRACNOSE: ANTHRACNOSE C. org: C. jasminicola Symptoms: Large, circular, distinct, brownish to greyish spots outlined with brown to yellowish haloes appears on the upper surface of the leaves.Slide19: Mode of spread & survival: Wind borne conidia Management: Spraying with 0.2% zineb or 0.3% copper oxy chloride RUST: RUST C. org: U. hobsonii Symptoms: Leaf appears as orange coloured pustules on both the surface of leaves. Numerous blisters occur. Infected portions become hypertrophied. Buds do not open Splitting of barks. Slide21: Mode of spread& survival: Spreads through wind borne uredospores Management: Dusting of sulphur at 20-25kg/ha or spraying mancozeb 0.2% or Bayleton 0.05% PHYLLODY: PHYLLODY C. org: MLO Symptoms: Affected plants are bushy. Leaves are small, malformed and are closely arranged. Mode of spread: By “ white fly”and by grafting Slide23: MANAGEMENT: Cuttings for new planting should be obtained from disease free plantsOther Diseases: Other Diseases Septoria leaf spot - S. altehsonii Fulvia leaf mould - F. fulva Spot anthracnose - Elsinoe jasminae Leaf blight & stem blemish - Cylindorsporium sp. B. Leaf spot - X. campestris pv. Jasminii Chlorotic ring spot - Virus