Cotton:Photos

Cotton Pest and Nutritional Disorder Photos

2-4,_D_Damage

2-4, D Damage

Angular_leaf_blight_(bacterial_blight)

Angular leaf blight (bacterial blight) (Richard Garber)

Angular_Leaf_Spot

Angular Leaf Spot

Ascochyta_Blight

Ascochyta Blight

Bacterial_blight

Bacterial blight (Richard Garber)

Bacterial_blight

Bacterial blight- leaf (Richard Garber)

Bacterial_blight

Bacterial blight- leaf (Richard Garber)

Boll_Rot

Boll Rot

Boron_deficiency_in_cotton

Boron deficiency in cotton

(Ralph B. Clark, USDA-ARS)

Bouteloua_aristoides_and_Puccinia_stakmanii

Bouteloua aristoides and Puccinia stakmanii (Richard Garber)

Cotton_bolls

Cotton bolls ready for harvest, Gossypium hirsutum

Cotyledons_beginning_to_drop

Cotyledons beggining to drop (Jack Clark)

Dead_and_healthy_seedlings

Dead and healthy seedlings (Richard Garber)

Disease_symptoms/healthy

Disease symptoms/healthy (Richard Garber)

Diseased_and_healthy_seedlings

Diseased and healthy seedlings- hypocotyl exposed/ half above and below ground (Richard Garber)

Diseased_and_healthy_stems

Diseased and healthy stems (Richard Garber)

Diseased_cotton_seedlings

Diseased cotton seedling (Richard Garber)

Diseased_cotyledons

Dark small cotyledons- diseased (Richard Garber)

Diseased_seedlings

Diseased seedlings dropping cotyledons (Jack Clark)

Fusarium

Fusarium- vascular discoloration (Jack Clark)

Fusarium

Fusarium, SU-2 (susceptible) Perma (tolerant) (Richard Garber)

Fusarium_and_Verticillium

Fusarium (soild)- vascular discoloration and verticillium (flecking)- vascular discoloration (Richard Garber)

Fusarium_foliar_and_verticillium

Fusarium foliar (left) and Verticillium (right) (Richard Garber)

Fusarium_leaf

Fusarium leaf (Jack Clark)

Fusarium_leaf_symptoms_and_root_knot_nematode

Fusarium leaf symptoms-stem discoloration and root knot nematode (Richard Garber)

Fusarium_leaf_symptoms_and_verticillium_symptoms

Fusarium leaf symptoms and verticillium symptoms (Richard Garber)

Fusarium_oxysporum_and_root_knot_nematode

Fusarium oxysporum and root knot nematode galls (Jack Clark)

Fusarium_Wilt

Fusarium Wilt

Fusarium_wilt

Fusarium wilt (Richard Garber)

Fusarium_wilt

Fusarium wilt (Richard Garber)

Fusarium_wilt

Fusarium wilt and root knot nematode (Richard Garber)

Fusarium_wilt

Fusarium wilt- black lateral root (Richard Garber)

Fusarium_wilt

'Fusarium wilt- blade main vein (infected discolored) (Richard Garber)

== Fusarium_wilt

Fusarium_wilt

Fusarium wilt leaf discoloration (Richard Garber)

Fusarium_wilt

Fusarium wilt leaf symptoms (Richard Garber)

Fusarium_wilt

Fusarium wilt- petiole cut, vascular discoloration (Richard Garber)

Fusarium_wilt

Fusarium wilt- susceptible to root knot nematode/fusarium (Richard Garber)

Fusarium_wilt

Fusarium wilt- typical chlorosis of middle leaf lobe (Richard Garber)

Fusarium_wilt_leaf_symptoms_and_root_knot_nematode

Fusarium wilt leaf symptoms and root knot nematode (Richard Garber)

Gray_lock_1

Gray lock infection on boll, Nigraspora oryzae (R.H. Garber, USDA)

Healthy_and_diseased_seedlings

Healthy and diseased seedlings (Richard Garber)

Healthy_seedling_emergence

Healthy seedling emergence (Richard Garber)

Iron_chlorosis

Iron chlorosis (Dick Bassett)

Iron_chlorosis

Iron chlorosis (Dick Bassett)

Iron_chlorosis

Iron chlorosis (Dick Bassett)

Iron_deficiency_in_cotton

Iron deficiency in cotton

(Ralph B. Clark, USDA-ARS)

Nematode_Damage_to_Roots

Nematode Damage to Roots

Nigraspora_oryzae

Nigraspora oryzae (Richard Garber)

Nigraspora_oryzae

Nigraspora oryzae- grey lock (Richard Garber)

Nigraspora_oryzae

Nigraspora oryzae- grey lock (Richard Garber)

Nitrogen(N)_deficiency

Nitrogen(N) Deficiency (Dick Bassett)

Nitrogen_rate_study

Nitrogen rate study (Dick Bassett)

No_nitrogen

No nitrogen (Dick Bassett)

Phosphorus_response

Phosphorus response (Dick Bassett)

Phytophthora_boll_rot

Phytophthora boll rot (San Andrews-Maricopa)

Phytophthora_boll_rot

Phytophthora boll rot (San Andrews-Maricopa)

Phytophthora_boll_rot

Phytophthora boll rot (San Andrews-Maricopa)

Potassium_deficiency

Potassium deficiency (Dick Bassett)

Potassium_deficiency

Potassium deficiency (Dick Bassett)

Potassium_deficiency

Potassium deficiency (Dick Bassett)

Potassium_deficiency

Potassium deficiency (Dick Bassett)

Puccinia_stakmanii

Puccinia stakmanii- aecia and pycnia on leaves (Richard Garber)

Puccinia_stakmanii

Puccinia stakmanii- aecia on leaf (Richard Garber)

Puccinia_stakmanii

Puccinia stakmanii- aecia on lower surface of leaf (Richard Garber)

Pythium_seedling_disease

Pythium seedling disease (Richard Garber)

Pythium_seedling_disease

Pythium seedling disease (Richard Garber)

Pythium_seedling_disease

Pythium seedling disease- plant on left is diseased and dark color (Jack Clark)

Pythium_ultimatum

Pythium ultimatum- left (infested), right (healthy) (Richard Garber)

Pythium_ultimatum_seedling_disease

Pythium ultimatum seedling disease (Richard Garber)

Rhizoctonia_diseased_seedling

Rhizoctonia diseased seedling (Jack Clark)

Rhizoctonia_solani

Rhizoctonia solani (Jack Clark)

Rhizoctonia_solani

Rhizoctonia solani (Richard Garber)

Rhizoctonia_solani

Rhizoctonia solani- ground level (Jack Clark)

Rhizoctonia_solani

Rhizoctonia solani- ground level (Richard Garber)

Rhizoctonia_solani

Rhizoctonia solani on seedling (Richard Garber)

Rhizopus

Rhizopus- tight lock (Richard Garber)

Rhizopus_infection

Rhizopus infection- injury of boll wall into fiber (Richard Garber)

Root_knot_nematode_1

Root-knot nematode on cotton roots; normal root system, right (Raymond L. Shepherd, USDA)

Rust_on_boll_tuberculins

Rust on boll tuberculins (Richard Garber)

Seedling_Blight

Seedling Blight

Seedling_disease

Seedling disease- healthy (left), diseased (right) (Jack Clark)

== Severe_nitrogen_deficiency

• Severe nitrogen deficiency (Dick Bassett)

Spodoptera_litura,_adult

Spodoptera litura, adult

Spodoptera_litura,_larvae

Spodoptera litura, larvae

Thielasviopsis_seedling_disease

Thielaviopsis seedling disease (Richard Garber)

Thielaviopsis

Thielaviopsis (Richard Garber)

Thielaviopsis

Thielaviopsis (Richard Garber)

Thielaviopsis

Thielaviopsis (Richard Garber)

Thielaviopsis

Thielaviopsis (Richard Garber)

Thielaviopsis

Thielaviopsis (Richard Garber)

Thielaviopsis_basicola

Thielaviopsis basicola (Richard Garber)

Thielaviopsis_basicola

Thielaviopsis basicola (Richard Garber)

Thielaviopsis_basicola

Thielaviopsis basicola (Richard Garber)

Thielaviopsis_basicola

Thielaviopsis basicola (Richard Garber)

Thielaviopsis_basicola

Thielaviopsis basicola (Richard Garber)

Thielaviopsis_basicola

Thielaviopsis basicola (Richard Garber)

Thielaviopsis_basicola

Thielaviopsis basicola (Richard Garber)

Thielaviopsis_basicola

Thielaviopsis basicola (Richard Garber)

Thielaviopsis_basicola

Thielaviopsis basicola (Richard Garber)

Thielaviopsis_basicola

Thielaviopsis basicola (Richard Garber)

Thielaviopsis_on_root

Thielaviopsis on root (Richard Garber)

Thielaviopsis_on_root

Thielaviopsis on root (Richard Garber)

Thielaviopsis_seedling

Thielaviopsis seedling (Richard Garber)

Verticillium_Wilt

Verticillium Wilt

Verticillium_wilt

Verticillium wilt (Richard Garber)

Verticillium_wilt

Verticillium wilt (Richard Garber)

Verticillium_wilt

Verticillium wilt (Richard Garber)

Verticillium_wilt

Verticillium wilt (Richard Garber)

Verticillium_wilt

Verticillium wilt (Richard Garber)

Verticillium_wilt

Verticillium wilt (Richard Garber)

Verticillium_wilt

Verticillium wilt (Richard Garber)

Verticillium_wilt

Verticillium wilt (Richard Garber)

Verticillium_wilt

Verticillium wilt (Richard Garber)

Verticillium_wilt

Verticillium wilt (Richard Garber)

Verticillium_wilt

Verticillium wilt (Richard Garber)

Verticillium_wilt

Verticillium wilt (Richard Garber)

Verticillium_wilt

Verticillium wilt (Richard Garber)

Verticillium_wilt

Verticillium wilt (Richard Garber)

Verticillium_wilt

Verticillium wilt (Richard Garber)

Verticillium_wilt

Verticillium wilt (Richard Garber)

Verticillium_wilt_disease

Verticillium wilt disease (Richard Garber)

Verticillium_wilt_seedling

Verticillium wilt seedling (Richard Garber)

Zinc_deficiency

Zinc deficiency (Dick Bassett)

Zinc_deficiency

Zinc deficiency (Dick Bassett)

Zinc_deficiency_(extreme_deficiency)

Zinc deficiency (extreme deficiency)

Zinc_deficiency_(normal-left,_deficient-right)

Zinc deficiency (normal-left, deficient-right) (Dick Bassett)