1. COLLEGE OF AGRICULTURAL TECHNOLOGY
Affiliated to Tamil Nadu Agricultural University, Coimbatore
Kullapuram, Via Vaigai dam, Theni-625 562
SOOTY MOULD
STUDENT COURSE TEACHER
Mr.AJIN.R.P Dr. PARTHASARATHY. S
ID. No. 2015021005 Asst. Prof., (Plant Pathology)
3. Distribution
• Sooty mould is a collective, self-descriptive term for
a number of different fungi.
• It present in the crops grown in Europe, Asia, Africa,
Australia, North, Central and South America.
4. Symptoms
• Black encrustation formed on flowers, leaves, stem and fruit.
• Mycelium superficial and lives on the sugary secretion of the
sucking pests like hoppers, jassids, aphids and mealy bugs.
• Photosynthetic activity of plant is reduced.
6. Pathogen character
• This pathogen produces 5 types of conidia such as
Torula, Trichothecium, Coniothecium, Brachysporium,
Ascospores.
• Pathogen is an obligate parasite.
• Mycelium is intercellular producing knob shaped
haustoria in the host cells.
7. SYSTEMATIC POSITION
• Kingdom: Fungi
• Phylum : Ascomycota
• Class : Dothideomycetes
• Subclass : Dothideomycetidae
• Order : Capnodiales
• Family : Capnodiaceae
• Genus : Capnodium
• Species : mangiferae
8. Favourable conditions
• The fungus grows on the leaf surface on the sugary
substances secreted by Jassids, Aphids and scale
insects.
• Spores germinate at temperatures between 1 to 20 C,
with the optimum range being 10 to 15 C.
9. Mode of spread and survival
• Survive on mango leaves for over a year.
• Spreads through wind borne conidia.
• The disease is favored by wet, rainy weather.
10. Management
• 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.
• Maintain a balanced nutrition program to reduce any
stress on the plant.
