2014 Southeast Hay Convention
Problem Insects and What to Do About Them
Armyworms
INSECT MANAGEMENT IN
GEORGIA HAYFIELDS
DR. WILL HUDSON
University of Georgia
FALL ARMYWORMS
ARMYWORMS
! SYMPTOMS: GRASS
BLADES EATEN
! ADULTS - MOTH
! EGGS LAID IN
! THRESHOLD:
MASS
VARIES WITH SIZE
AND WEATHER
! TREATMENT:
CONFIRM,
PYRETHROIDS,
SEVIN, OR DIMILIN
! CORAGEN IS GOLD
STANDARD ($$$)
! GENERATION - 28
DAYS
! OVERWINTERS IN
FL.
! DRY SUMMERS
OFTEN WORSE
WHITE GRUB CONTROL
WHITE GRUBS
! ADULTS ARE
! IDENTIFY SPECIES
BEETLES
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! SEVIN OR
! ONE GENERATION
PYRETHROIDS FOR
GREEN JUNE
BEETLE
! OTHERSCOMPLETE
RENOVATION AND
REPLANTING
PER YEAR (MOST)
! MORE SEVERE WHEN
USING CHICKEN
LITTER
! PREFER NONENDOPHYTE
FESCUES, ANY
WARM-SEASON
GRASS
Dr. Will Hudson,
Extension Entomologist
1
2014 Southeast Hay Convention
Problem Insects and What to Do About Them
Sugarcane Beetle
! Adults present
from late April
through July or
later.
! Grubs feed on
organic matter, like
GJB
! Problems only in
drought years
! BSM Damage
Photo by S. Carlson
FIRE ANTS
BSM CONTROL
! Preliminary results
show pyrethroids
are effective
! Timing is important
! NUISANCE PEST
! May require
INCREASE
POPULATION
! TOTAL MOUND
TIME ABOUT 6
MONTHS
! TREATMENTS MAY
–  Treat after cutting/
baling
second application
Dr. Will Hudson,
Extension Entomologist
2
2014 Southeast Hay Convention
Problem Insects and What to Do About Them
Fire ant mound
Fire ants swarming
FIRE ANTS
CONTROL OPTIONS
! BAITS
–  AMDRO - AT 1.0 TO 1.5 LBS/AC
–  CONSERVE - AT 1.0 TO 1.5 LBS./AC
–  EXTINGUISH AT 1.0 - 1.5 LBS./AC
! MOUND TREATMENTS
–  ORTHENE
–  PYRETHROIDS
Dr. Will Hudson,
Extension Entomologist
3