S No Particulars Picture Remarks 1 Bean Seedling showing primary Leaves- Vegetative phase.
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1 S No Particulars Picture Remarks 1 Bean Seedling showing primary Leaves- Vegetative phase. 2 Flower and developing pod of bean reproductive phase. 3 Young bean plant showing trifoliolate vegetative 4 Pod filling reproductive phase
2 5 Phase and stages of development of the bean plant 6 Oogonia, antheridia and oospores of Aphanomyces euteiches f. phaseoli 7 Chlamydospores of Thielaviopsis basicola 8 Macroconidia of fusarium solani f. sp. phaseoli 9 Chlamydospores of fusarium solani f. sp. Phaseoli
3 10 Sporangium (left) and oogonium containing oospore (right) of pythium paroecandrum in bean root 11 Bean flower infected with Botrytis cinerea 12 Life stage of Meloidogyne sp. A. Second stage juvenile B. Anterior portion of second stage juvenile. C. Tail of second stage juvenile. D. Mature female. E. Developing juvenile from plant root. F. Mature male
4 13 Life stage of partylenchus sp. A. Mature female B. Anterior portion of female illustrating the overlapping Esophagus. C&D. Lateral view of male tail E. Mature female 14 Snap bean grown in soil containing Aphanomyces euteiches f. sp. Phaseoli (center right ) Check on left 15 Snap Bean from a field infested with Pythium ultimum and Aphanomyces euteiches f. sp phaseoli showing moderate (left) and mild (right) root rot 16 Snap beans grown 16 o C in soil that was (left to right ) uninfested, infested with pythium ultimum alone, infested with Aphanomyces euteiches f. sp. Phaseoli alone, or infested with both pathogens
5 17 Snap grown at 28 0 C in soil that was (left to right) unifested with pythium alone infested with Aphanomyces euteiches f. sp. Phaseoli alone or infested with both pathogens 18 Snap beans infected with Aphanomyces euteichase f. sp. Phaseoli (right ) Check is in center 19 Black root caused by Thielaviopsis basicola ( four plant on right ). Healthy plant on left 20 Fusarium root rot, caused by Fusarium solani f. Sp. Phaseoli. Note: Proliferation of adventitious roots on plant on right following severe rotting of the lower root
6 21 Improved root growth by subsoilng at a depth of 50 cm. Between rows in soil infested with fusarium solani f. sp. Phaseoli (right) compared to lack of subsoiling (left). 22 Cultures of fusarium solani f. sp. Phaseoli (left and middle) and f. solani (right) on potatodextrose agar. 23 Seed decay (left) and root rot (right) caused by pythium paroecandrum
7 24 Postenergence damping-off, caused by pythium paroecandrum 25 Lesions on hypocotyl, caused by pythium sp. 26 Rotting of feeder roots, caused by pythium paroecandrum.
8 27 Blight of bean seedling, caused by pythium sp. 28 Stunting of bean plants by pythium. Healthy plant on left 29 Sunken, Raddish brown cankers on bean hypocotyls, caused by rhizoctonia solani 30 Raddish brown rotting of pith of bean stem, caused by rhizoctonia solani
9 31 Lower stem and root lesions of southern blight and sclerotia produced by sclerotium rolfsii 32 Lesions on lower stem caused by sclerotium rolfsii (left ) and by a sterile basidiomycete (right). 33 Alternaria leaf spot, caused by alternaria alternata 34 Seed discoloration, caused by alternaria alternata (left). Healthy seed on right. 35 Angular leaf spot, caused by phaeoisariopsis griseola.
10 36 Alternaria pod spot, caused by alternaria alternata (left). Healthy pod on right 37 Pod and branches with symptoms of angular leaf spot, caused by phaeoisariopsis griseola. 38 Anthracnose caused by glomerella lindemuthiana (anamorph colletotrichum lindemuthianum), on leaf.
11 39 Anthracnose, caused by glomerella lindemuthiana (anamorph colletotrichum lindemuthianum), on pods. 40 Anthracnose, caused by glomerella lindemuthiana (anamorph colletotrichum lindemuthianum), on seed (right). Healthy seed on left 41 Ascochyta leaf caused by phoma exigua var. exigua 42 Ascochyta leaf spot, caused by phoma exigua var. exigua, showing zonate leaf spot.
12 43 Ascochyta leaf spot caused by Phoma exigua var. exigua showing zonate lesion on pod 44 Ascochyta leaf spot, caused by Phoma exigua var. exigua showing discoloration of seed
13 45 Ashy stem blight on stem of seeding caused by Macrophomina phaseolina 46 Ashy stem blight on stem, caused by macrophomina phaseolina
14 47 Ashy stem blight on stem, caused by macrophomina Phaseolina. 48 Ashy stem blight on pods caused by Macrophomina phaseolina 49 Infection on seeds by Macrophomina phaseolina 50 Ashy stem blight in bean crop, caused by Macrophomina phaseolina
15 51 Cercospora leaf spot and blotch, caused by Cercospora canescens 52 Cercospora leaf spot and blotch, caused by Cercospora canescens 53 Chaetoseptoria leaf spot, caused by Chaetoseptoria well manii
16 54 Downy mildew on pods, caused by phytophthora nicotianae var. parasitica 55 Entyloma leaf smut, caused by entyloma sp 56 Floury leaf spot, caused by Mycovellosiella phaseoli 57 Floury leaf spot, caused by Mycovellosiella phaseoli, and gray leaf spot, caused by Cercospora spp.
17 58 Fusarium yellows, caused by fusarium oxysporum f. sp. Phaseoli 59 Reddish brown discoloration of vascular tissue of plant affected by fusarium yellows, caused by fusarium oxysporum f. sp. phaseoli 60 Gray leaf spot, caused by Cercospora spp
18 61 Gray leaf spot, caused by Cercospora spp. 62 Gray mold on leaf, caused by Botryotinia fuckeliana (anamorph Botryotinia cinerea). 63 Gray mold on pod, caused by Botryotinia fuckeliana (anamorph Bortrytish cinerea). 64 Conidia and hypha of Btrytis cinerea.
19 65 Sclerotia, apothecium, and conidia of Botryotinia fuckeliana (anamorph Botrytis cinerea). 66 Pink pod rot, caused by Trichothecium roseum. 67 Pink pod rot, caused by Trichothecium roseum. 68 Leaf affected by powdery mildew, caused by Erysiphe polygoni.
20 69 Plant affected powdery mildew, caused by Erysiphe polygoni 70 Pods affected by powdery mildew, caused by Erysiphe polygoni 71 Pythium blight caused by Pythium ultimum
21 72 Pythium blight caused by pythium ultimum 73 Rust caused by Uromyces appendiculatus on upper leaf surface. 74 Rust caused by Uromyces appendiculatus on pod. 75 Rust uredinium produced by Uromyces appendiculatus surrounded by secondary uredinia
22 76 Pycnia (left) aecia (center) and uredinia (right) of rust, caused by Uromyces appendiculatus on leaflets collected from a naturally infected volunteer bean seedling beneath the canopy of a winter wheat field 77 Red Kidney bean resistant (left) and navy bean susceptible (right) to prevalent race of rust caused by Uromyces appendiculatus 78 Large Hypersensitive necrotic spots on bean cultivar Oregon State University 1604, caused by infection with race 39 of Uromyces appendiculatus 79 Highly susceptible reaction of bean cultivar Golden Gate Wax to race 39 of Uromyces appendiculatus. The largest dots on the bean rust grading scale card appromiximate 800 um
23 80 Soybean rust on leaf, caused by Phakopsora pachyrhizi 81 Uredinia of the soybean rust fungus Phakopsora pachyrhizi 82 Sporulation of soybean rust fungus, Phakopsora pachyrhiz, on lower surface of leaf 83 Sterile white basidomycete, cause of stem rot
24 84 Web blight on leaves caused by Thanatephorus cucumeris (anamorph Rhizoctonia solani). 85 Coalesced lesions of web blight on leaf caused by Thanatephorus cucumberis (anamorph Rhizoctonia solani). 86 Mycelium and sclerotia of Thanatephorus cucumeris (anamorph Rhizoctonia solani)cause of web blight, on stem 87 Web blight on pods, caused by Thanatephorus cucumeris (anamorph Rhizoctonia solani).
25 88 White leaf spot caused by pseudocercosporella albida. 89 White leaf spot, caused by Pseudocercosporella albida 90 White mold on pods and branches, caused by sclerotinia sclerotiorum 91 White mold on pods, caused by Sclerotinia sclerotioum
26 92 Sclerotia of Sclerotinia Sclerotiorum on pods 93 Sclerotinia sclerotiorum on potato-dextrose agar Sclerotium and apothecia of Sclerotinia sclerotiorum 95 Seed infected with Sclerotinia sclerotiorum
27 96 Water-soaked lesion of common bacterial blight, caused by Xanthomonas campestris pv. Phaseoli. 97 Common bacterial blight on lower leaf surface, caused by Xanphomonas campestris pv. Phaseoli 98 Common bacterial blight on upper leaf surface, caused by Xanthomonas campestris pv. Phaseoli 99 Common bacterial blight on pods, caused by Xanthomonas campestris pv. Phaseoli 100 Halo blight on leaf, caused by Pseudomonas syringae pv. Phaseolicola.
28 101 Extensive yellowing of plant affected with halo blight, caused by Pseudomonas syringae pv. Phaseolicola 102 Halo blight on pods, caused by pseudomonas syrimgae pv. Phaseolicola 103 Lesions and bacterial crust of halo blight on pod, caused by pseudomonas syringae pv. Phaseolicola
29 104 Halo blight on seed, caused by pseudomonas syringare pv. Phaseolicola 105 Bean debris affected with halo blight, caused by pseudomonas syringae pv. Phaseolicola 106 Bacterial brown spot on leaf, caused by pseudomonas syringae pv. Syringae
30 107 Bacterial brown spot on leaves, caused by pseudomonas syringae pv. Syringae 108 Bactrial brown spot on pods, caused by pseudomonas syringae pv. Syringae 109 White pustules on leaf following water-soak inoculation with Curtobacterium flaccumfacitns, cause of bacterial wilt 110 Vitinal chlorosis and necrosis on leaves following stem inoculation with Curtobacterium flaccumfaciens, cause of bacterial wilt 111 Seeds infected with orange (upper right), violet (upper left), and yellow (lower left) variants of curtobacterium flaccumfaciens, cause of bacterial wilt
31 112 Purple Discoloration of stem from seed infected with Curtobacterium flaccumfaciens 113 Yellow (left) and orange (right) Variants of Curtobacterium flaccumfaciens 114 Galls on bean roots caused by the root-knot nematode Meloidogyne sp
32 115 Galls on bean roots and hypocotyl, caused by the root-knot nematode, Meloidogyne sp 116 Galls on hypocotyl and adventitious roots, caused by the root-knot nematode, Meloidgyne sp
33 117 Mature Meloidogyne female attached to root with a full egg sac 118 Discoloration and reduction of root and hypocotyl tissues (right) by the lesion nematode Pratylenchus penetrans 119 Systemic yellow spotting of leaf caused by alfalfa mosaic virus.
34 120 Typical green on green vein banding symptoms of bean common mosaic on trifoliolate leaf 121 Mosaic and leaf distortion caused by bean common mosiac virus 122 Leaf roll caused by bean common mosaic virus
35 123 Stunting of plant malformation mosaic mottle, veinclearing, and blistering of leaves, caused by bean common mosaic virus 124 Atypical yellow dots and mosaic caused by bean common mosaic vrius 125 Local and systemic vascular necrosis caused by bean common mosaic virus
36 126 Pinpoint necrotic local lesions caused by bean common mosaic virus 127 Pinpoint necrotic local lesions extended to veinal necrosis and interveinal chlorosis, caused by bean common mosaic virus
37 128 Necrotic Black rootsymptoms, caused by bean common mosaic virus 129 Necrosis of pod wall and pod suture caused by bean common mosaic virus 130 Mild green-on-green mosaic mottle caused by bean common mosaic virus
38 131 Foliar symptoms of bean dwart mosaic 132 Foliar sysptoms of bean golden mosaic 133 Bright golden mosaic caused by bean golden mosaic virus
39 134 Leaf distortion and blighted flower, caused by bean golden mosaic virus 135 Ovipositing common whitefly (Bemisia tabaci) on lower leaf surface 136 Leaves on pods infected with bean pod mottle virus 137 Plant infected with bean rugose mosaic virus 138 Mosaic and rugosity on leaf, caused by bean yellow mosaic virus
40 139 Mosaic on leaf caused by bean yellow mosaic virus 140 Chlorosis, caused by chlorotic strain of bean yellow mosaic virus 141 Yellow mosaic, caused by clover yellowvein virus 142 Prominent epinasty (left) following inculation with cucumber mosaic virus. Healthy plants on right
41 143 Mosaic symptoms, caused by cucumber mosaic virus 144 Veinbanding, leaflet elongation, and zipperlike rugosity along the main vein, caused by cucumber mosaic virus 145 Epinastic leaf curl and general chlorosis on plant in foreground, caused by beet curly top virus 146 Bean cultivars susceptible (foreground) and resistant (back ground ) to beet curly top virus 147 Tight epinastic curl of trifoliolate leaves, distorted stem tip, and death of secondary buds, caused by beet curly top virus
42 148 Epinastic curl of leaflets, petioles and inflorescence of tumble mustard (Sisymbrium altissimum), caused by beet curly top virus 149 Necrotic lesions and vein necrosis on primary leaf caused by peanut mottle virus 150 Chlorosis and necrosis of veins and petioles of trifoliolate leaf, caused by peanut mottle virus
43
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