The document describes various fungal plant pathogens that cause important agricultural diseases. It provides images and descriptions of symptoms, microscopic structures like spores and mycelium, colony morphology on culture media, and life cycles. Key fungal genera discussed include Phytophthora, Pythium, Alternaria, Septoria, Sclerotinia, Fusarium, Drechslera, Sphacelotheca, Claviceps, Puccinia, Uncinula, Phomopsis, Plasmodiophora, Peronospora, Sclerophthora, Aspergillus, Venturia, Colletotrichum, Gymnosporangium, Pyricularia, Botry

1. Phytophthora infestans PAMB-1314
Infected potato tuber with
Phytophthora infestans
Culture of P. infestans on PDA
Mycelium of P. infestans
Life Cycle
Lemon shaped sporangia
formed on banched
sporangiophore
Zoospore

2. Infected Potato tuber with
pythium ultimum Colony
Oospore
Life Cycle
Zoospore
Pythium ultimum PAMB-1314

3. On leaves: Concentric
ring spots
On fruits: black
concentric ridges
On stem: concentric
elongated spots
Spore structure
Life cycle
Colony
Early blight of Tomato: Alternaria solani PAMB1315

4. Water soaked circular spots Conidial structure
Colony Life cycle
Septoria leaf spot: Septoria lycopersici PAMB1315

5. Root rot Colony
Life cycle Teleomorph stage - Basidium
Microscopic
view
Sclerotium rolfsii PAMB1316

7. Sclerotinia sclerotianum
Symptom Culture Growth
Life cycle
PAMB1317

8. Sclerotinia sclerotianum
White cotton like tissue Colony
Life cycle
Morphological development
PAMB1317

9. Wilting plants Colony
Micro & macro conidia Life cycle
Fusarium udum PAMB1317

10. Sooty mould:Capnodium species PAMB1318
Symptoms on leaves
Life cycle Colony

11. Red rust:Cephaleurous spp PAMB1318
Symptoms on leaves uredospores

12. COLONY
BLACK ROT -Ceratocystis fimbriata PAMB 1319
BLACK ROT
LIFE CYCLE
CONIDIA
ASCI

13. LEAF SPOT
COLONY LIFE CYCLE
CONIDIA
TIKKA LEAF SPOT- Cercospora arachidicola PAMB 1319

14. SOUTHERN CORN LEAF BLIGHT-Drechslera maydis PAMB1320
LEAF BLIGHT COLONY LIFE CYCLE
CONIDIA ASCI AND ASCOSPORES

15. GRAIN SMUT/KERNEL SMUT/COVERED SMUT-Sphacelotheca sorghi
PAMB1320
SMUT SORI
LIFE CYCLE
TELIOSPORES
CHLAMYDOSPORES

16. INFECTED EARS TURN BLACK SCLEROTIA
HONEYDEW SECRETION
LIFE CYCLE
ERGOT/SUGARY DISEASE OF SORGHUM – Claviceps microcephala
FORMATION OF STROMA
PAMB 1321

17. Sporangiphore unbranched, basidium like club shaped
Downy mildew of grasses -- Basidiophora butleri
Sporangia born on apophyses which is cup like /saucer shaped
Downy mildew of lettuce -- Bremia lattucae
Downy mildew in cucurbits -- Psuedoperonospora
cubensis
Sporangiophore is dichotomously branched Sporangiophore is dichotomously branched , Sporangia are
lemon shape ,
Downy mildew in Bajra -- Sclerospora graminicola
PAMB 1321
DOWNY MILDEW GENERA CLASSIFICATION

18. Sporangiophore branching at right angle to main tube
Downy mildew in grapes – Plasmopara viticola
Sporangiphores are dichotomously branched tapering to
fine points bears conidia or sporangia
Downy mildew of onion – Perenospora parasitica
Sporangiophore branching and Sclerospora type and
germination of sporangia is of like peronospora
Downy mildew of Sorghum – Perenosclerospora sorghii
Sporangiophore is dichotomously branched
Downy mildew of Sugar cane -- Sclerophthora
phillipines
PAMB 1321

19. BLACK STEM RUST OF WHEAT-Puccinia graminis tritici
LIFE CYCLE
TELIOSPORES AND UREDOSPORES
RUST
PAMB1322

20. PAMB1322
POWDERY MILDEW
CLEISTOTHECIA
POWDERY MILDEW OF GRAPES-Uncinula necator
LIFE CYCLE
HYPHAE AND CONIDIA

21. PHOMOPSIS BLIGHT OF BRINJAL-Phomopsis vexans PAMB1323
SYMPTOMS ON LEAVES SOFT WATERY MASS WATERY DECAY MUMMIFIED BRINJAL
CONIDIA COLONY MORPHOLOGY LIFE CYCLE

22. CLUBROOT OF BRASSICA CROP- Plasmodiophora brassicae
Clubed root Life cycle
Typical symptom of
clubroot
P brassicae Under microscope Resting spores
PAMB1323
Zoospores

23. Symptoms on the leaves Colony morphology
Life cycle
Pycnidia fruting body
PAMB1323

24. SYMPTOM ON GROUNDNUT COLONY
CONIDIOPHORE BEARING VESICLE LIFE CYCLE
Aspergillus flavus in Groundnut PAMB 1324

25. Conidia asci produced in psudothecia Life cycle
Symptom on fruit Colony
APPLE SCAB- venturia inequalis Pamb 1324

26. PAMB 1325
Life cycle
Colletotrichum lindemuthianum a–b. Acervuli; c.
Setae; d. Tip of seta; e. Basal part of seta; f–h.
Conidiophores; i–m. Appressoria; n–o. conidia
Lesions on
leaves
Bean pods with sunken lesions Colony
Bean Anthracnose (Colletotrichum lindemuthianum)

27. Life cycle
PAMB 1325
Yellow or orange spot on leaf
Tiny pustules
(Pcynidia) on
upper surface
Apple rust (Gymnosporangium sp)
Ring of tubes
(Aecia) from
underside
Aeciospores
Damaged fruit
Teliospores

28. Symptom
Conidia
Colony
Life cycle
BLAST OF RICE – pyricularia oryzae PAMB 1326

29. Symptom
Colony
Conidia with conidiophore
The picture can't be displayed.
Life cycle
Botrytis bud rot of castor PAMB 1326

30. A .Verticilium wilt of tomato
C. Macro conidia D. Life cycle
B. Colony Morophology
PAMB 1327

31. Ganoderma lucidians
B. Colony morophology
A. .Reishi Mushroom
C. Microsporidial structure C. Life cycle
PAMB1327

32. Ephelis oryzae
Symptoms Colony
Conidia Fruiting body
PAMB1328

33. Ustilaginoidea virens
Symptoms Life cycle
Conidia Colony
PAMB1328