Insects
Weeds
Diseases
Growth Stages
Misc.
100
Brown or grayish-green jumping insects that are moderately long and have prominent heads and large compound eyes.
What is a Grasshopper?
100
image 1
What is Giant Ragweed?
100
Individual lesions on leaf blades are long (.5-5cm) and narrow, pale brown or gray to tan. Some what rectangular in shape. Image 6
What is Gray leaf spot?
100
Emergence
What is VE Stage?
100
Park at the field entrance Avoid mud holes Avoid parking in irrigation tracks
Where is a good place to park?
200
Three yellow-white hair lines down their back.
What is a Fall Armyworm?
200
image 2
What is Waterhemp?
200
cigar-shaped, gray-green to tan lesions with uniform margins. image 7
What is Northern corn leaf blight?
200
Two leaves with collars visible
What is V2 Stage?
200
Be aware pesticides have been applied to the field Do not enter the field Contact the agronomist to determine when entry is safe
What does "Danger Pesticides Keep Out" sign mean?
300
Tan to pale green beetle about 1/4in long
What is a Northern Corn Rootworm?
300
image 3
What is Eastern Black Nightshade?
300
image 8
What is Common Rust?
300
Silking- silks visible outside the husks
What is R1 Stage?
300
an environment that supports disease Pathogen Host plant
What is needed for plant disease to develop?
400
Mature larva is about 1in long, flesh-colored, and marked by rather inconspicuos rows of small, round, brown spots running the length of its body.
What is a European Corn Borer?
400
image 4
What is Ivyleaf Morningglory?
400
image 9
What is Stalk Rot?
400
"R"
What is Reproductive?
400
Night time temperatures above 75 degrees
What is needed for plant disease to spread rapidly?
500
Larvae are dark brown with faint diamond-shaped markings on their backs.
What is a Western Bean Cutworm?
500
image 5
What is a Horseweed?
500
image 10
What is Eyespot leaf lesions?
500
Stages R1-R6
What is flowering to maturity?
500
Weather and Fugicides
What is used to reduce spreading of foliar dieases?
M
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