Mango diseases and their management in Pakistan made by Muhammad Farhan at The Islamia University of Bahawalpure department Agriculture and Environmental sciences
This ppt will help Agricultural professionals to diagnose banana diseases and the management strategies. This is a compilation of important diseases of banana prevalent in India which contains some of my own photographs and others collected from Web. This is intended only for educating students and other agricultural field staff.
This ppt will help Agricultural professionals to diagnose banana diseases and the management strategies. This is a compilation of important diseases of banana prevalent in India which contains some of my own photographs and others collected from Web. This is intended only for educating students and other agricultural field staff.
Panama disease
Moko disease
Tip over or Heart rot
Sigatoka disease
Cigar end Rot
Anthracnose
Freckle or Black Spot
Banana bunchy top
Infectious chlorosis
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Mango diseases and their management in pakistan.pptx. by Farhan Meyo
1. Topic name : Mango diseases and their
management
Submitted to : Dr. Naveed Aslam
Submitted by: Muhammad Farhan = A008
Aousaf Ahmad = A015
M. Jahanzaib Chishti = A035
Department of: UCA&ES
3. Anthracnose: Colletotrichum
gloeospo rioides
• Produces leaf spots, blossom blight, wither tip, twigs
• Symptoms
• Blight and fruit rot.
•Small blister like spots develop on the leaves and twigs. Young
leaves wither and dry Tender twigs wither and die back
symptom appears. Affected branches ultimately dry up. Black
spots appear on fruits.
•The fruit pulp becomes hard, crack and decay at ripening.
Infected fruits drop
5. Management
• Spray P. fluorescens (FP 7) at 3 weeks interval commencing
from October at 5g/like on flower branches.
•5-7 sprays one to be given on flowers and bunches.
• Before storage, treat with hot water, (50-55°C) for 15 minutes
or dip in Benomyl solution (500ppm) or Thiobendazole
(1000ppm) for 5 minutes
6. Powdery mildew
Oidium mangiferae
•Symptoms
•It attacks the leaves, flowers, stalks of panicle
and fruits.
•Shedding of infected leaves occurs when the
disease is severe.
•The affected fruits do not grow in size and may drop
before attaining pea size.
•Survives as dormant mycelium in affected leaves.
Secondary spread by air borne conidia
8. Management
•Dusting the plants with fine sulphur (250-300 mesh) at the
rate of 0.5 kg/tree.
• The first application may be soon after flowering, second 15
days later (or) spray with Wettable sulphur (0.2%), (or)
Carbendazim (0.1%),(or) Tridemorph ( 0.1%),(or) Karathane
(0.1%).
9. Mango malformation : Fusarium
moliliforme var. subglutinans
• Symptoms
•Three types of symptoms: bunchy top phase, floral malformation
and vegetative malformation.
•In bunchy top phase in nursery bunching of thickened small
shoots, bearing small rudimentally leaves. Shoots remain short.
• In malformation of inflorescens, shows variation in the panicle.
Malformed head dries up in black mass and persist for long time.
• Secondary branches are transformed into number of small
leaves giving a witches broom appearance.
11. Management
• Diseased plants should be destroyed
•Use of disease free planting material
• Incidence reduced by spraying 100-200ppm NAA during
October.
•Pruning of diseased parts along the basal 15-20 cm
apparently healthy portions.
•This is followed by the spraying of Carbendazim (0.1%) or
Captafol (0.2%).
12. Stem end rot: Diplodia natalensis
• Symptoms
• The dark epicarp around the base of the pedicel In the initial
stage the affected area enlarges to forma circular, black patch
• Under humid atmosphere extends rapidly and turns the
whole fruit completely black within two or three days.
•The pulp becomes brown and somewhat softer. Dead twigs
and bark of the trees, spread by rains
13.
14. Management
• Prune and destroy infected twigs and spray Carbendazim or
Thiophanate Methyl(0.1%) or Chlorathalonil (0.2%) as
fortnightly interval during rainy season.
15. Red-rust: Cephaleuros v i r e s c e n s
Symptoms
• Algae attacks foliage and young twigs.
• Rusty spots appear on leaves, initially as circular, slightly
elevated, coalesce to form irregular spots.
• The spores mature fall off and leave cream to white
valvet texture on the surface of the leaves
• Management
• Bordeaux mixture (0.6%) or Copper oxychloride 0.25%
17. Grey Blight : Pestalotia mangiferae
• Symptoms
•Brown spots develop on the margin and at the tip of the leaf
lamina. They increase in size and become dark brown. Black
dots appear on the spots which are acervuli of the fungus.
•Survive on mango leaves for over a year. Spreads through
wind borne conidia.
• Heavy infection is noticed during the monsoon when the
•temperature is 20-25oC.and high humidity.
18. •Management
•Remove and destroy infected plant parts. Spraying copper
oxychloride 0.25 Mancozeb 0.25% or Bordeaux mixture 1.0%.
19. Sooty mould: Capnodium mangiferae
• Symptoms
• The fungi produce mycelium which is superficial and dark.
They row on sugary secretions of the plant hoppers. Black
encrustation is formed which affect the photosynthetic activity.
•The fungus grows on the leaf surface on the sugary
substances secreted by jassids, aphids and scale insects.
21. •Management
• Management should be done for insects and sooty
moulds simultaneously.
•Controlling of insect by spraying systemic insecticides like
Monocrotophos or methyl dematon
•After that spray starch solution (1kg Starch/Maida in 5 litres of
water. Boiled and dilute to 20 liters)
• Starch dries and forms flake which are removed along with
the fungus.
22. Bacterial Canker (Xanthomonas mangiferae)
• It is a serious disease of Mango, caused by a bacteria,
in Pakistan.
• The disease causes fruit drop
• (10-70%), yield loss
23. Symptoms
• The disease symptoms first appear as minute
water soaked irregular lesions on any part of leaf /
leaf lamina, which later turns into irregular necrot
cankerous patches.
• Cankerous lesions also appear on petioles, twigs and
young fruits.
fruits.
24. Management of Bacterial Canker disease
• Use of clean planting and grafting material and Use of
certified seedlings is recommended.
• Mango stones for raising seedlings (root stock) should
always be taken from healthy fruits.
• Two sprays of streptocycline – tetracycline mixture at
20 -25 days interval reduce fruit infection.
• Application of Bronopol bactericide.
• Copper oxy – chloride over the infected plant arrests
the spreading of disease.
25. Red rust of mango (Cephaleuros virescens)
Symptoms
• This disease is caused by an algae.
• The disease is characterized by initial green colored
patches, and when disease advances, these turns into
red rusty colored spots on the leaves and young
twigs.
• Reduction in photosynthetic activity and defoliation as a
result of algal attack lower vitality of the host plant as
well as fruit yield.
• This is fully infected leaf.