Cucurbits:Photos

Cucurbit Pest and Nutritional Disorder Photos

Advanced_powdery_mildew_on_pumpkin_plants

Advanced powdery mildew on pumpkin plants (H. F. Schwartz; Colorado State University)

Alternaria_fruit_rot_1a

Alternaria fruit rot external symptoms on melon, Alternaria alternata (B.D. Bruton, USDA)

Alternaria_fruit_rot_1b

Alternaria fruit rot internal symptoms on melon, Alternaria alternata (B.D. Bruton, USDA)

Alternaria_Leaf_Spot_Cantaloupe

Alternaria Leaf Spot Cantaloupe

Alternaria_leaf_spot_on_cantaloupe_leaves

Alternaria leaf spot on cantaloupe leaves (Mike Bartolo; Colorado State University)

Alternaria_leaf_spot_on_melon

Alternaria leaf spot on melon (H. F. Schwartz; Colorado State University)

Alternaria_leaf_spot_on_melon

Alternaria leaf spot on melon (H. F. Schwartz; Colorado State University)

Alternaria_leaf_spot_on_melon

Alternaria leaf spot on melon (H. F. Schwartz; Colorado State University)

Angular_Leaf_Spot_-_Cucumber

Angular Leaf Spot - Cucumber

Angular_leaf_spot_of_cucumber

Angular leaf spot of cucumber (Dave Creech; Colorado State University)

Angular_leaf_spot_of_cucumber

Angular leaf spot of cucumber (H. F. Schwartz; Colorado State University)

Anthracnose_-_Gourd

Anthracnose - Gourd

Anthracnose_on_Fruit_-_Watermelon

Anthracnose on Fruit - Watermelon

Anthracnose_on_Leaf_-_Cucumber

Anthracnose on Leaf - Cucumber

Anthracnose_on_Leaf_-_Watermelon

Anthracnose on Leaf - Watermelon

Bacterial_brown_spot_1b

Bacterial brown spot on melon, Erwinia ananas (B.D. Bruton, USDA)

Bacterial_soft_rot_1

Bacterial soft rot on melon, Erwinia cartovora subsp. carotovora (B.D. Bruton, USDA)

Bacterial_wilt_of_squash

Bacterial wilt of squash (H. F. Schwartz; Colorado State University)

Bacterial_wilt_of_summer_squash

Bacterial wilt of summer squash (H. F. Schwartz; Colorado State University)

Bacterial_wilt_of_summer_squash

Bacterial wilt of summer squash (H. F. Schwartz; Colorado State University)

Bacterial_wilt_of_summer_squash

Bacterial wilt of summer squash (H. F. Schwartz; Colorado State University)

Belly_Rot_-_Cucumber

Belly Rot - Cucumber

Blossom_End_Rot_-_Watermelon

Blossom End Rot - Watermelon

Blue_mold_1

Blue mold on melon, Penicillium spp. (B.D. Bruton, USDA)

Botrytis_on_melon_rind

Botrytis on melon rind (H. F. Schwartz; Colorado State University)

Choanephora_Fruit_Rot_on_Butternut_Squash_fruit

Choanephora Fruit Rot on Butternut Squash fruit (H. F. Schwartz; Colorado State University)

Choanephora_Fruit_Rot_on_Butternut_Squash_fruit

Choanephora Fruit Rot on Butternut Squash fruit (H. F. Schwartz; Colorado State University)

Choanephora_Fruit_Rot+R[-10]C_on_Butternut_Squash_fruit

Choanephora Fruit Rot+R[-10]C on Butternut Squash fruit (H. F. Schwartz; Colorado State University)

Courgette:_Oidium_sp.

Courgette: Oidium sp.

Crater_rot_1a

Crater rot fruit rot on melon, Myrothecium roridum (B.D. Bruton, USDA)

Crater_rot_1b

'Crater rot stem canker on melon, Myrothecium roridum (B.D. Bruton, USDA)

Crater_rot_1c

Crater rot leaf spot on melon, Myrothecium roridum (B.D. Bruton, USDA)

Crown_blight_1

Crown blight disease on melon (J.D. McCreight, USDA)

Damping_off_on_melon

Damping off on melon (H. F. Schwartz; Colorado State University)

Downy_Mildew_-_Lower_Side_-_Cantaloupe

Downy Mildew - Lower Side - Cantaloupe

Downy_Mildew_-_Upper_Side_-_Cantaloupe

Downy Mildew - Upper Side - Cantaloupe

Downy_mildew_1a

Downy mildew affecting upper leaf surfaces on melon, Pseudoperonospora cubensis (C.E. Thomas, USDA)

Downy_mildew_1b

Downy mildew affecting lower leaf surfaces on melon, Pseudoperonospora cubensis (C.E. Thomas, USDA)

Fruit_Rot_-_Squash

Fruit Rot - Squash

Fusarium_collapse_of_melons

Fusarium collapse of melons (H. F. Schwartz; Colorado State University)

Fusarium_collapse_of_melons

Fusarium collapse of melons (H. F. Schwartz; Colorado State University)

Fusarium_collapse_of_melons

Fusarium collapse of melons (H. F. Schwartz; Colorado State University)

Fusarium_collapse_of_melons

Fusarium collapse of melons (H. F. Schwartz; Colorado State University)

Fusarium_fruit_rot_on_cantaloupe_fruit

Fusarium fruit rot on cantaloupe fruit (Mike Bartolo; Colorado State University)

Fusarium_roseum_on_melon_rind

Fusarium roseum on melon rind (H. F. Schwartz; Colorado State University)

Fusarium_rot_1a

Fusarium rot on melon, reddish pigmentation characteristic (B.D. Bruton, USDA)

Fusarium_rot_1b

Fusarium rot on melon, decayed internal tissue with white halo (B.D. Bruton, USDA)

Fusarium_rot_1c

Fusarium rot on melon, fissures, epidermal rind (B.D. Bruton, USDA)

Fusarium_rot_1d

'Fusarium rot infection on melon rind (B.D. Bruton, USDA)

Fusarium_rot_1e

'Fusarium rot on honeydew (B.D. Bruton, USDA)

Fusarium_rot_on_melon

Fusarium rot on melon (H. F. Schwartz; Colorado State University)

Fusarium_rot_on_melon

Fusarium rot on melon (H. F. Schwartz; Colorado State University)

Gummy_Stem_Blight_-_Watermelon

Gummy Stem Blight - Watermelon

Gummy_stem_blight_1b

Gummy stem blight stem canker on melon, Didymella bryoniae (anamorph phoma cucurbitacearum) (B.D. Bruton, USDA)

Gummy_Stem_Blight_on_Leaf_-_Cucumber

Gummy Stem Blight on Leaf - Cucumber

Gummy_Stem_Blight_on_Stem_-_Cucumber

Gummy Stem Blight on Stem - Cucumber

Initial_powdery_mildew_on_pumpkin_plants

Initial powdery mildew on pumpkin plants (H. F. Schwartz; Colorado State University)

Lasiodiplodia_fruit_rot_1b

Lasiodiplodia vine decline on melon, Lasiodiplodia theobromae (B.D. Bruton, USDA)

Lettuce_infectious_yellows_1

Lettuce infectious yellows on melon (J.D. McCreight, USDA)

Melon:_Cercospora_citrullina

Melon: Cercospora citrullina

Melon:_Dacus_sp.

Melon: Dacus sp.

Melon:_Henosepilackna_sp.

Melon: Henosepilackna sp.

Melon:_Oidium_sp.

Melon: Oidium sp.

Melon:_Pseudoperonospora_cubensis

Melon: Pseudoperonospora cubensis

Ozone_injury_1a

'Ozone injury of watermelon -- early symptoms (R.A. Reinert, USDA)

Ozone_injury_1b

Ozone injury of watermelon -- late symptoms (R.A. Reinert, USDA)

Phomopsis_cucurbitae_1a

Black rot stem lesion on cucumber, Phomopsis cucurbitae -- black pycnidia, fungus (B.D. Bruton, USDA)

Phomopsis_cucurbitae_1b

Purplestem disease on melon, Phomopsis cucurbitae (B.D. Bruton, USDA)

Phomopsis_cucurbitae_1c

Black rot on melon fruit, Phomopsis cucurbitae (B.D. Bruton, USDA)

Phytophthora_Wilt_of_summer_squash

Phytophthora Wilt of summer squash (H. F. Schwartz; Colorado State University)

Phytophthora_wilt_of_zucchini_squash_plants

Phytophthora wilt of zucchini squash plants (H. F. Schwartz; Colorado State University)

Pink_root_1

Pink root of melon, Phoma terrestris (B.D. Bruton, USDA)

Powdery_Mildew_-_Cantaloupe

Powdery Mildew - Cantaloupe

Powdery_mildew_of_cucumber

Powdery mildew of cucumber (L. E. Sommers; Colorado State University)

Powdery_mildew_on_cantaloupe_leaves

Powdery mildew on cantaloupe leaves (Mike Bartolo; Colorado State University)

Powdery_mildew_on_pumpkin_leaf

Powdery mildew on pumpkin leaf (H. F. Schwartz; Colorado State University)

Red_rot_1

Red rot of melon, Epicoccum nigrum (B.D. Bruton, USDA)

Rhizopus_soft_rot_1

Rhizopus soft rot of melon, Rhizopus stolonifer (B.D. Bruton, USDA)

Scab_-_Squash

Scab - Squash

Southern_blight_1

'Southern blight of melon, Sclerotium rolfsii (B.D. Bruton, USDA)

== Squash_mosaic_comovirus

• Squash mosaic comovirus: Leaf mosaic (right) vs healthy (left) buttercup squash

Squash_virus

Squash virus (H. F. Schwartz; Colorado State University)

Virus_symptoms_on_expanded_squash_leaf

Virus symptoms on expanded squash leaf (H. F. Schwartz; Colorado State University)

Virus_symptoms_on_expanding_squash_leaf

Virus symptoms on expanding squash leaf (H. F. Schwartz; Colorado State University)

Virus_symptoms_on_young_squash_leaf

Virus symptoms on young squash leaf (H. F. Schwartz; Colorado State University)

Virus_symptoms_on_zucchini_squash_fruit

Virus symptoms on zucchini squash fruit (H. F. Schwartz; Colorado State University)

Wilt_(Stem_Damage)_-_Watermelon

Wilt (Stem Damage) - Watermelon