Cereal Leaf Beetle OBJECTIVE
Wooster Campus Farms
Determine cereal leaf beetle larval abundance and feeding damage across varieties of organic small grain forages.
Harvest Date (Boot Stage) 6/11/2024 - 6/18/2024 Harvest Date 6/28/2024 - 7/3/2024 (Late Heading) Variety See Results Population 100 lbs/ac Acres 1 Treatments 13 Reps 4 Treatment Width 10 ft. Management Fertilizer Previous Crop Soybean
WEATHER INFORMATION Planting Date
MAX. AND MIN. TEMPERATURE (°F)
Planting Date 4/22/2024
Wayne County
Harvest Date
100 90 80 70 60 50 40 30 20 10 0
DAILY PRECIPITATION (IN)
STUDY INFORMATION
OARDC
3
2
1
0
Row Spacing 7.5 in. Soil Type Wooster-Riddles Silt Loams, 51% Canfield Silt Loam, 49%
Growing Season Weather Summary APR
MAY
JUN
JUL
AUG
SEP
Total
Precip (in.)
3.74
4.12
2.09
2.09
3.32
4.18
19.54
Cumulative GDDs
251
747
1372
2076
2729
3245
3245
STUDY DESIGN This study was a randomized complete block design with 4 replicates and 13 treatments. Each plot was 10 feet wide x 40 feet long with 7.5 inch rows drilled. On June 6, twenty plants from each plot were randomly selected, and the tallest leaf was identified and cut from the base of each plant. Leaf height (cm), number of cereal leaf beetle larvae, and damage ratings were collected for each of the twenty leaves. Damage was a visual rating on a scale of 1-5 (1 = less than 25%, 2 = 25%, 3 = 50%, 4 = 75%, 5 = more than 75%). The center 4 ft were harvested from each plot and dry matter yield was calculated in tons/ac.
194 | Ohio State Digital Ag Program
Powdery mildew on barley.
Cereal leaf beetles present on plant leaves.