power point presentation plant diseases
TRANSCRIPT
PLANT DISEASES
PLANT DISEASES
Plant disease is an impairment of the normal state of a plant that interrupts or modifies its vital functions
SOME COMMON PLANT DISEASES
• BUD ROT IN COCONUT• ROOT WILT IN COCONUT• BLIGHT DISEASE IN PADDY• DECAY DISEASE IN RUBBER• QUICK WILT IN PEPPER• BUNCHY TOP DISEASE IN
PLANTAIN
BUD ROT IN COCONUT
CAUSED BY BACTERIA
SYMPTOMS• GROWING TIP OR BUD DECAYS
PREVENTION• CUT AND BURN
SEVERELY AFFECTED PLANTS
• REMOVE ALL AFFECTED TISSUE OF CROWN AND APPLY BORDEAUX MIXTURE
ROOT WILT IN COCONUT
CAUSED BY BACTERIA
SYMPTOMS
DECAYING ROOTS
GENERAL YELLOWING AND MARGINAL NECROSIS IN LEAVES
OVERALL PRODUCTION DECREASES
PREVENTIONCUT AND REMOVE DISEASE ADVANCED PLANTS
APPLY BALANCED DOSE OF CHEMICAL FERTILISER
BLIGHT DISEASE IN PADDY
CAUSED BY BACTERIA
SYMPTOMSLEAVES DRY FROM TIP TO BASE
SPOTS APPEAR ALONG EDGES OF LEAVES
PREVENTION
• SUPPLYING A BALANCED AMOUNT OF PLANT NUTRIENTS ESPECIALLY NITROGEN
DECAY DISEASE IN RUBBER
CAUSED BY
FUNGUS
SYMPTOMSSTEM SHRUNKS, SPLITS AND RED FLUID OOZES OUT FROM SPLIT REGION
PREVENTION
• PAINTING WITH FUNGICIDES
•SPRAYING BORDEAUX MIXTURE FOR TREES NOT IN TAPPING
QUICK WILT IN PEPPER
CAUSED BY
FUNGUS
SYMPTOMSLEAVES WITH WATER SOAKED LESIONS AND FIMBRICATE MARGIN
PREVENTION
•THROUGH PROPER WATER REGULATION
•CROP ROTATION
•USE OF HIGH TEMPERATURE BY STEAM HEAT
BUNCHY TOP DISEASE IN PLANTAIN
• CAUSED BY BANANA BUNCHY TOP VIRUS
• VECTOR APHIDS
SYMPTOMS•New leaves that are produced are narrower than normal, yellow, and flat
•Any fruit is produced, which is unusual, it will be deformed
PREVENTIONCHEMICAL CONTROL OF APHID VECTORS
DESTRUCTION OF INFECTED PLANTS
CONCLUSION
Since the beginning of agriculture, generations of farmers have been evolving practices for combating the various plagues suffered by our crops.
Following discovery of the causes of plant diseases in the early 19th century, our growing understanding of the interactions of pathogen and host has enabled us to develop a wide array of measures for the control of specific plant diseases
The goal of plant disease management is to reduce the economic and aesthetic damage caused by plant diseases
REFERENCES
• Ravichandra N. G. 2013. Fundamentals of Plant Pathology. India : PHI Learning
• Lucas George B. Introduction to plant diseases - Identification and Management. 2nd edition. India : CBS Publishers and Distributors
• Saha L. R. 2002. Handbook of Plant Diseases. India:Kalyani Publishers.
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