Corn, Soybean, Wheat, and Alfalfa Field Guide

Bulletin 827-05

INDEX

• ALFALFA

  • Diseases
    • Identification
    • Time of occurrence
    • Efficacy of seed treatments
    • Submitting plant specimens to lab
  • Fertility
    • Nutrient deficiency symptoms
    • Nutrient sufficiency ranges
    • Phosphate recommendations
    • Potash recommendations
  • Insects
    • Identification
    • Insecticides
    • Scouting calendar
    • Submitting insect specimens for ID
  • Miscellaneous
    • Stand

• CORN

  • Diseases
    • Efficacy of seed treatments
    • Estimate leaf damage
    • Foliar fungicides for gray leaf spot
    • Identification
    • Time of occurrence
    • Submitting plant specimens to lab
  • Fertility
    • Estimating nitrogen loss
    • Nitrogen recommendations
    • Nutrient deficiency symptoms
    • Nutrient sufficiency ranges
    • Phosphate recommendations
    • Potash recommendations
  • Growth Stage Definitions
    • Relative to hail & insect injury
  • Insects
    • Identification
    • Insecticides
    • Instar guide inside back cover
    • Pest Assessment
    • Scouting calendar
    • Submitting insect specimens—ID
  • Miscellaneous
    • Eff. of planting date on grain yields
    • Estimating pre-harvest yields
    • Sampling insects & plants
    • Seed spacing for plant populations
  • Replant Decisions
    • Examples of corn leaf damage
    • Determining corn growth stages
    • Information required for replant
    • Yield loss due to defoliation
  • Weeds
    • Herbicide injury diagnosise
    • Weed threshold

• NO-TILL

  • Fertility
    • Soil Sampling
  • Weed Control
    • Perennial weed control
    • Response to burndown herbicides

• GENERAL MANAGEMENT

  • Calibration
    • Calibration equations, liquid apps
    • Calibration of granular apps
    • Even flat-fan band widths
    • Nozzle heights for spray pattern
    • Nozzle types for various uses
  • Fertility
  • Nutrient deficiency symptoms
    • Alfalfa
    • Corn
    • Soybeans
    • Wheat
    • Nutrient removal by crop
  • Nutrient sufficiency ranges
    • Alfalfa
    • Corn
    • Soybeans
    • Wheat
  • Nutrients in manure
    • Solid
    • Liquid
  • Phosphate recommendations
    • Alfalfa
    • Corn
    • Soybeans
    • Wheat
  • Potash recommendations
    • Alfalfa
    • Corn
    • Soybeans
    • Wheat
  • Soil pH for crops
  • Submitting plant samples to lab
  • Insects, Mites Identification
    • Alfalfa
    • Corn
    • Soybeans
    • Wheat
  • Insecticides
    • Alfalfa
    • Corn
    • Soybeans
    • Wheat
  • Submitting insect specimens-lab
  • Temperature development units
  • Miscellaneous
    • Area & volume calculations
    • County educators
    • Ext. specialists & phone numbers
    • Length of row to equal 1/1000 ac
  • POISON CONTROL TEL. NO.
  • Using milkline for silage harvest
  • WEB site addresses

• SOYBEAN

  • Diseases
    • Efficacy of fung. seed treatment
    • Identification
    • Time of occurrence
    • Submitting plant specimens to lab
  • Fertility
    • Nutrient deficiency symptoms
    • Nutrient sufficiency ranges
    • Phosphate recommendations
    • Potash recommendations
  • Growth Stage Definitions
    • Vegetative & Reproductive
  • Insects, Mites
    • Estimating leaf damage
    • Identification
    • Insecticides
    • Pest Assessment
    • Scouting calendar
    • Submitting insect specimens-lab
  • Miscellaneous
    • Sampling Insects & Plants
  • Replant decisions
    • Information needed
    • Estimating leaf damage
    • Plant population for row widths
    • Yield loss from defoliation
    • Replant worksheet
  • Weeds
    • Herbicide injury diagnosis
    • Weed threshold

• WEEDS

  • Identification
    • Grass Key
    • Annual grass
    • Perennial grass
    • Biennial broadleaf
    • Summer annual broadleaf
    • Winter annual broadleaf
    • Perennial broadleaf
  • Threshold
    • Corn
    • Soybean

• WHEAT

  • Diseases
    • Est. % leaf area damaged
    • Efficacy of foliar fungicides
    • Efficacy seed treatment fung
    • Identification
    • Submitting plant specimens-lab
    • Thresholds for fungicide app
    • Time of occurrence
  • Fertility
    • Nitrogen recommendation
    • Nutrient deficiency symptoms
    • Nutrient sufficiency ranges
    • Phosphate recommendations
    • Potash recommendations
  • Growth Stages
    • The Feekes Scale
  • Insects
    • Identification
    • Insecticides
    • Scouting calendar
    • Submitting insect specimens-lab