Please enable JavaScript.
Coggle requires JavaScript to display documents.
Silking (R1) to Maturity (R6) (Discolored Or Dead Plants (Reddish or…
Silking (R1) to Maturity (R6)
No silks apparent
Delayed Silking or failure to silk
low phosphorus supply
nitrogen dificiency
Drought stress
severe corn leaf aphid
Population too high for hybrid
Silks eaten off
insect damage
Grasshopper
Japanese Beetle
Corn rootworm adult
Woollybear caterpillar
No Pollen; Tassels Sterile
improper kernel set
2, 4-D or Dicamba applied at improper time
Genetic male sterility
Leaves Torn or Pieces Missing
large irregular areas eaten in, leaves
insect damage
grass hopper
Fall armyworm
Damage To Ear
Kernals tunneled and eaten
insect damage
picnic beetle
Corn sap Beetle
Corn borer
Fall Armyworm
corn ear worm
Ends of ears eaten off
Deer, Livestock
Shucks eaten or open, kernals eaten or damaged
birds
Grass hoppers
rodents
Discolored Or Dead Plants
plant dies prematurely
Stalk rot
severe corn borer damage
Drought
dead, frosted appearance of leaves
Foliar diseases
Stewarts leaf blight
Anthracnose
Helminthosporium leaf blights
Frost
Reddish or purple leaves and stalk
Stress by corn leaf Aphids
Nematodes
Maize Dwarf mosaic or other virus
corn stunt
Injury to leaf or stalk
Drought or other stress
Genetic Charector
Barren stalk, no ears, only stunted nubbins or scattered kernals
Drought
Corn leaf aphids
Ear smut
Extreme heat during pollination
Nematodes
low fertility, ecspecially nitrogen
Population to high for hybrid or reason
