University of California
Herbicide Symptoms

Home / Search

Select from the categories below to display images that matches the selection. Add additional category selections to include more images. Click the "" to remove the selection.

Mode of Action (MoA)
Chemistry
Herbicides
Plants

cucumber

melon

pumpkin

squash

Symptoms

Select from the categories below to display images that matches the selection. Add additional category selections to include more images. Click the "" to remove the selection.

Mode of Action (MoA) Chemistry Herbicides Plants Symptoms

cucumber

melon

pumpkin

squash

57 images matching the selected options:

 
Plant: cucumber
MoA: Inhibition of glutamine synthetase
Chemistry: Phosphinic acid
Herbicide: glufosinate-ammonium
Symptoms: leaf crinkling, leaf distortion, necrosis, necrotic spots
 
Plant: cucumber
MoA: Inhibition of protoporphyrinogen oxidase(PPO)
Chemistry: Diphenylether
Herbicide: oxyfluorfen
Symptoms: leaf bronzing, leaf crinkling, necrotic spots, stunting
 
Plant: cucumber
MoA: Inhibition of photosynthesis at photosystem II
Chemistry: Triazinone
Herbicide: metribuzin
Symptoms: chlorosis, interveinal chlorosis, leaf margin necrosis
 
Plant: cucumber
MoA: Unknown
Chemistry: Acid
Herbicide: caprylic acid / capric acid
Symptoms: leaf crinkling, leaf cupping, leaf curling, leaf distortion, leaf malformation, necrosis, necrotic spots
 
Plant: cucumber
MoA: Inhibition of acetolactate synthase ALS (acetohydroxyacid synthase AHAS)
Chemistry: Sulfonylurea
Herbicide: rimsulfuron
Symptoms: chlorosis, chlorotic spots, interveinal chlorosis, interveinal necrosis, leaf cupping, leaf curling, leaf distortion, leaf malformation, leaf purpling, lower side , necrosis
 
Plant: melon
MoA: Inhibition of very-long-chain fatty acids
Chemistry: Chloroacetamide
Herbicide: s-metolachlor
Symptoms: leaf crinkling, leaf distortion, stunting
 
Plant: melon
MoA: Inhibition of very-long-chain fatty acids
Chemistry: Chloroacetamide
Herbicide: s-metolachlor
Symptoms: chlorosis, leaf crinkling, leaf distortion, leaf margin necrosis, necrosis, necrotic spots, stunting
 
Plant: melon
MoA: Synthetic auxins
Chemistry: Phenoxy-carboxylic acid
Herbicide: 2,4-D
Symptoms: epinasty, leaf crinkling, leaf curling, leaf distortion, stunting, twisting
 
Plant: melon
MoA: Synthetic auxins
Chemistry: Phenoxy-carboxylic acid
Herbicide: 2,4-D
Symptoms: epinasty, leaf crinkling, leaf cupping, leaf curling, leaf distortion, stunting
 
Plant: melon
MoA: Synthetic auxins
Chemistry: Phenoxy-carboxylic acid
Herbicide: 2,4-D
Symptoms: epinasty, leaf crinkling, leaf curling, leaf distortion, stunting
 
Plant: melon
MoA: Inhibition of photosynthesis at photosystem II
Chemistry: Triazine
Herbicide: atrazine
Symptoms: interveinal chlorosis, interveinal necrosis, leaf crinkling, leaf distortion, leaf margin chlorosis, leaf margin necrosis, stunting
 
Plant: melon
MoA: Inhibition of photosynthesis at photosystem II
Chemistry: Triazine
Herbicide: atrazine
Symptoms: leaf crinkling, leaf margin chlorosis
 
Plant: melon
MoA: Inhibition of photosynthesis at photosystem II
Chemistry: Triazine
Herbicide: atrazine
Symptoms: chlorosis, interveinal chlorosis, interveinal necrosis, necrosis, stunting
 
Plant: melon
MoA: Inhibition of photosynthesis at photosystem II
Chemistry: Triazine
Herbicide: prometryn
Symptoms: leaf crinkling, veinal chlorosis
 
Plant: melon
MoA: Microtubule assembly inhibition
Chemistry: Dinitroaniline
Herbicide: trifluralin
Symptoms: leaf crinkling, leaf distortion, stunting
 
Plant: melon
MoA: Microtubule assembly inhibition
Chemistry: Dinitroaniline
Herbicide: trifluralin
Symptoms: leaf crinkling, leaf distortion, stunting
 
Plant: pumpkin
MoA: Inhibition of acetolactate synthase ALS (acetohydroxyacid synthase AHAS)
Chemistry: Imidazolinone
Herbicide: imazamox
Symptoms: chlorosis, necrosis, stunting
 
Plant: pumpkin
MoA: Synthetic auxins
Chemistry: Phenoxy-carboxylic acid
Herbicide: 2,4-D
Symptoms: epinasty, growth distortion, leaf cupping, leaf curling, leaf distortion, stem malformation
 
Plant: pumpkin
MoA: Synthetic auxins
Chemistry: Phenoxy-carboxylic acid
Herbicide: 2,4-D
Symptoms: callused stem, epinasty, leaf malformation, stem cracking, stem malformation
 
Plant: pumpkin
MoA: Microtubule assembly inhibition
Chemistry: Pyridine
Herbicide: aminopyralid
Symptoms: epinasty, leaf crinkling, leaf cupping, leaf curling, leaf distortion, stem malformation
 
Plant: pumpkin
MoA: Microtubule assembly inhibition
Chemistry: Pyridine
Herbicide: aminopyralid
Symptoms: epinasty, leaf crinkling, leaf cupping, leaf curling, leaf distortion, leaf feathering, leaf malformation, leaf narrowing, stem malformation
 
Plant: pumpkin
MoA: Microtubule assembly inhibition
Chemistry: Pyridine
Herbicide: aminopyralid
Symptoms: epinasty, leaf crinkling, leaf cupping, leaf curling, leaf distortion, leaf feathering, leaf malformation, malformation, stem malformation
 
Plant: pumpkin
MoA: Inhibition of acetolactate synthase ALS (acetohydroxyacid synthase AHAS)
Chemistry: Pyrimidinyl(thio)benzoate
Herbicide: bispyribac-Na
Symptoms: chlorosis, chlorotic spots, leaf crinkling, leaf distortion, leaf malformation, leaf purpling, lower side , leaf stacking, necrotic spots
 
Plant: pumpkin
MoA: Inhibition of acetolactate synthase ALS (acetohydroxyacid synthase AHAS)
Chemistry: Pyrimidinyl(thio)benzoate
Herbicide: bispyribac-Na
Symptoms: chlorosis, chlorotic spots, leaf crinkling, leaf cupping, leaf distortion, leaf malformation, leaf stacking
 
Plant: pumpkin
MoA: Inhibition of acetolactate synthase ALS (acetohydroxyacid synthase AHAS)
Chemistry: Pyrimidinyl(thio)benzoate
Herbicide: bispyribac-Na
Symptoms: chlorosis, chlorotic spots
 
Plant: pumpkin
MoA: Inhibition of protoporphyrinogen oxidase(PPO)
Chemistry: Triazolinone
Herbicide: carfentrazone-ethyl
Symptoms: leaf crinkling, leaf distortion, necrosis, necrotic spots, stunting
 
Plant: pumpkin
MoA: Inhibition of protoporphyrinogen oxidase(PPO)
Chemistry: Triazolinone
Herbicide: carfentrazone-ethyl
Symptoms: leaf crinkling, necrosis, necrotic spots
 
Plant: pumpkin
MoA: Inhibition of acetolactate synthase ALS (acetohydroxyacid synthase AHAS)
Chemistry: Sulfonylurea
Herbicide: chlorsulfuron
Symptoms: chlorosis, leaf crinkling, leaf curling, leaf distortion, necrosis, necrotic spots
 
Plant: pumpkin
MoA: Inhibition of acetolactate synthase ALS (acetohydroxyacid synthase AHAS)
Chemistry: Sulfonylurea
Herbicide: chlorsulfuron
Symptoms: chlorosis, chlorotic spots, internode stacking, leaf crinkling, leaf curling, leaf distortion, leaf malformation, leaf margin necrosis, leaf purpling, lower side , leaf stacking, necrosis
 
Plant: pumpkin
MoA: Inhibition of acetolactate synthase ALS (acetohydroxyacid synthase AHAS)
Chemistry: Sulfonylurea
Herbicide: chlorsulfuron
Symptoms: chlorosis, chlorotic spots, leaf crinkling, leaf curling, leaf distortion, leaf malformation, leaf margin chlorosis, leaf purpling, lower side , leaf stacking, necrosis, necrotic spots
 
Plant: pumpkin
MoA: Inhibition of acetolactate synthase ALS (acetohydroxyacid synthase AHAS)
Chemistry: Sulfonylurea
Herbicide: chlorsulfuron
Symptoms: bleaching, chlorosis, chlorotic spots, leaf crinkling, leaf curling, leaf distortion, necrosis, necrotic spots
 
Plant: pumpkin
MoA: Synthetic auxins
Chemistry: Pyridine-carboxylic acid
Herbicide: clopyralid
Symptoms: leaf cupping, leaf curling, leaf distortion, leaf malformation
 
Plant: pumpkin
MoA: Synthetic auxins
Chemistry: Pyridine-carboxylic acid
Herbicide: clopyralid
Symptoms: epinasty, leaf crinkling, leaf cupping, leaf curling, leaf distortion, leaf malformation, leaf strapping, necrosis
 
Plant: pumpkin
MoA: Synthetic auxins
Chemistry: Benzoic acid
Herbicide: dicamba
Symptoms: chlorosis, epinasty, leaf crinkling, leaf cupping, leaf curling, leaf distortion, leaf feathering, leaf malformation, stem malformation
 
Plant: pumpkin
MoA: Synthetic auxins
Chemistry: Benzoic acid
Herbicide: dicamba
Symptoms: epinasty, leaf crinkling, leaf cupping, leaf curling, leaf distortion, leaf feathering, leaf malformation, leaf strapping, malformation, stem malformation, twisting
 
Plant: pumpkin
MoA: Synthetic auxins
Chemistry: Benzoic acid
Herbicide: dicamba
Symptoms: epinasty, leaf crinkling, leaf cupping, leaf curling, leaf distortion, leaf feathering, leaf malformation, leaf strapping, malformation, stem swelling, twisting
 
Plant: squash
MoA: Synthetic auxins
Chemistry: Pyridine-carboxylic acid
Herbicide: fluroxypyr
Symptoms: epinasty, leaf crinkling, leaf curling, leaf feathering, leaf malformation
 
Plant: squash
MoA: Synthetic auxins
Chemistry: Pyridine-carboxylic acid
Herbicide: picloram
Symptoms: leaf crinkling, leaf curling, leaf distortion, leaf malformation, stunting
 
Plant: squash
MoA: Synthetic auxins
Chemistry: Pyridine-carboxylic acid
Herbicide: triclopyr
Symptoms: chlorosis, epinasty, leaf crinkling, leaf cupping, leaf curling, leaf distortion
 
Plant: squash
MoA: Synthetic auxins
Chemistry: Pyridine-carboxylic acid
Herbicide: clopyralid
Symptoms: leaf crinkling, stunting
 
Plant: squash
MoA: Synthetic auxins
Chemistry: Benzoic acid
Herbicide: dicamba
Symptoms: leaf crinkling, twisting
 
Plant: squash
MoA: Inhibition of EPSP synthase
Chemistry: Glycine
Herbicide: glyphosate
Symptoms: chlorosis, leaf crinkling, leaf curling, leaf distortion, necrosis, stunting
 
Plant: squash
MoA: Inhibition of EPSP synthase
Chemistry: Glycine
Herbicide: glyphosate
Symptoms: chlorosis, leaf crinkling, leaf curling, leaf distortion, necrosis, stunting
 
Plant: squash
MoA: Inhibition of EPSP synthase
Chemistry: Glycine
Herbicide: glyphosate
Symptoms: leaf crinkling, leaf distortion, stunting
 
Plant: squash
MoA: Inhibition of protoporphyrinogen oxidase(PPO)
Chemistry: Triazolinone
Herbicide: carfentrazone-ethyl
Symptoms: chlorosis, interveinal chlorosis, leaf crinkling, leaf distortion, necrosis, stunting
 
Plant: squash
MoA: Inhibition of protoporphyrinogen oxidase(PPO)
Chemistry: Diphenylether
Herbicide: oxyfluorfen
Symptoms: leaf crinkling, leaf distortion, necrosis, necrotic spots, stunting
 
Plant: squash
MoA: Photosystem-I-electron diversion
Chemistry: Bipyridylium
Herbicide: paraquat
Symptoms: necrosis
 
Plant: squash
MoA: Microtubule assembly inhibition
Chemistry: Dinitroaniline
Herbicide: trifluralin
Symptoms: leaf distortion, necrosis, root malformation, root stunting, root thickening, root-hair thickening, stunting
 
Plant: squash
MoA: Inhibition of very-long-chain fatty acids
Chemistry: Chloroacetamide
Herbicide: dimethanamid
Symptoms: leaf crinkling, leaf distortion, leaf malformation, necrosis, stunting
 
Plant: squash
MoA: Unknown
Chemistry: Acid
Herbicide: caprylic acid / capric acid
Symptoms: leaf crinkling, leaf cupping, leaf distortion, necrosis, necrotic spots
 
Plant: squash
MoA: Cellulose biosynthesis inhibitors
Chemistry: Alkylazine
Herbicide: indaziflam
Symptoms: chlorosis, chlorotic spots, interveinal chlorosis, interveinal necrosis, leaf crinkling, leaf curling, leaf distortion, leaf malformation, leaf margin necrosis, necrosis
 
Plant: squash
MoA: Cellulose biosynthesis inhibitors
Chemistry: Alkylazine
Herbicide: indaziflam
Symptoms: interveinal chlorosis, interveinal necrosis, leaf crinkling, leaf malformation, necrosis
 
Plant: squash
MoA: Cellulose biosynthesis inhibitors
Chemistry: Alkylazine
Herbicide: indaziflam
Symptoms: chlorosis, interveinal chlorosis, necrosis
 
Plant: squash
MoA: Cellulose biosynthesis inhibitors
Chemistry: Alkylazine
Herbicide: indaziflam
Symptoms: chlorosis, interveinal chlorosis, interveinal necrosis, leaf distortion, necrosis
 
Plant: squash
MoA: Carotenoid biosynthesis inhibitors
Chemistry: Callistemone
Herbicide: mesotrione
Symptoms: bleaching, chlorosis, leaf margin necrosis, necrosis
 
Plant: squash
MoA: Photosystem-I-electron diversion
Chemistry: Bipyridylium
Herbicide: paraquat
Symptoms: chlorosis, leaf crinkling, leaf curling, leaf distortion, leaf malformation, leaf reddishness, necrosis, necrotic spots
 
Plant: squash
MoA: Inhibition of protoporphyrinogen oxidase(PPO)
Chemistry: Pyrimidindione
Herbicide: saflufenacil
Symptoms: leaf crinkling, leaf distortion, necrosis, necrotic spots
Webmaster Email: anripmweb@ucanr.edu