\m    20    6   20    2  1 'Aphids'
\m    37   11   68    2  1 'Armyworms'
\m    44   12   91    2  1 'Beet Armyworms'
\m    57   17   83    2  1 'Cabbage Loopers'
\m    70   22    2    3  1 'Cutworms'
\m    86   27   87    3  1 'Leafminers'
\m    98   31  122    3  1 'Loopers'
\m   105   33   14    3  1 'Mites'
\m   122   38   19    4  1 'Onion Maggots'
\m   169   55   44    4  1 'Stinkbugs'
\m   182   59   83    5  1 'Thrips'
\m   208   68   83    5  1 'Symphalans'
\m   221   73   32    5  1 'Wireworms'
\t'November 1987'                                                  'IX Q-'
\a                 Dr. Freddie Johnson, Extension Entomologist
\a
\a                            INSECT CONTROL IN ONIONS

                 Dr. Freddie Johnson, Extension Entomologist
\h 1 'Aphids'


                            INSECT CONTROL IN ONIONS


                                     Aphids

-------------------------------------------------------------------------------
                                                                 Min. Days to
Insecticide                     Formulation    Rate/Acre            Harvest
-------------------------------------------------------------------------------
parathion                       4 EC           1 pt                   15

rotenone (PB Nox + piperonyl    liquid         90 oz solution    see label
  butoxide)
_______________________________________________________________________________
\h 1 'Armyworms'



                                   Armyworms

Bacillus thuringiensis (Javelin) for dry (bulb) onions.  See label for rates.
\h 1 'Beet Armyworms'



                                 Beet Armyworms

-------------------------------------------------------------------------------
                                                                 Min. Days to
Insecticide                     Formulation    Rate/Acre            Harvest
-------------------------------------------------------------------------------
methomyl (Lannate, Nudrin)      1.8 L          2 - 4 pt (use       7 (dry)
                                               wetting agent)    28 (green)
-------------------------------------------------------------------------------
\h 1 'Cabbage Loopers'



                                Cabbage Loopers

-------------------------------------------------------------------------------
                                                                 Min. Days to
Insecticide                     Formulation    Rate/Acre            Harvest
-------------------------------------------------------------------------------
Bacillus thuringiensis          See individual labels                 0
-------------------------------------------------------------------------------
\b\v
\h 1 'Cutworms'
\v
\v
\v
                                    Cutworms

-------------------------------------------------------------------------------
                                                                 Min. Days to
Insecticide                     Formulation    Rate/Acre            Harvest
-------------------------------------------------------------------------------
methomyl (Lannate, Nudrin)      1.8 L          2 pt              7  (dry)
  (variegated cutworm)                                           28 (green)

mevinphos (Phosdrin)            4 EC           1/2 - 1 pt             1
  (climbing cutworm)
-------------------------------------------------------------------------------
\h 1 'Leafminers'



                                   Leafminers

-------------------------------------------------------------------------------
                                                                 Min. Days to
Insecticide                     Formulation    Rate/Acre            Harvest
-------------------------------------------------------------------------------
parathion                       4 EC           1 pt                   15
-------------------------------------------------------------------------------
\h 1 'Loopers'



                                    Loopers

Bacillus thuringiensis (Javelin) for dry (bulb) onions.  See label for rates.
\h 1 'Mites'



                                     Mites

-------------------------------------------------------------------------------
                                                                 Min. Days to
Insecticide                     Formulation    Rate/Acre            Harvest
-------------------------------------------------------------------------------
parathion                       4 EC           1 pt                   15
  (petrobia mite)

parathion                       4 EC           1 1/4 pt
  (brown wheat mite)
-------------------------------------------------------------------------------
\b\v
\h 1 'Onion Maggots'
\v
\v
\v
                                 Onion Maggots

-------------------------------------------------------------------------------
                                                                 Min. Days to
Insecticide                     Formulation    Rate/Acre            Harvest
-------------------------------------------------------------------------------
carbophenothion (Trithion)      8 EC           1 - 2 pt          at seeding or
                                                                 transplant

chlorpyrifos (Lorsban)          15 G           3.7 oz/1000       at planting
  (direct seeded onions                        ft row
   dry bulb)

diazinon                        14 G           14 - 28 lb        preplant
                                                                 broadcast

ethion*                         5 G            20 lb             15" rows at
                                                                 planting

ethion*                         25 WP          4 lb              15" rows at
                                                                 planting

fensulfothion (Dasanit)         15 G           6.7 lb            18" spacing
  (dry bulb onions)                                              at seeding

fonofos (Dyfonate)              10 G           10 lb  (based     in furrow at
                                               on 20" rows;      planting
                                               organic soils     time
                                               only)

lindane (seed treatment)        30% liquid     2.7 oz/100 lb
                                               seed

malathion                       5 EC           2 1/2 pt               3

parathion                       4 EC           3/4 pt                 15
  (onion maggot flies)

parathion                       10 G           20 lb             at planting
  (larvae)
-------------------------------------------------------------------------------
* Grown for sets, mix the following materials with enough seed to plant an
acre.  Use 1 1/2 times these rates on muck soils.
\h 1 'Stinkbugs'



                                   Stinkbugs

-------------------------------------------------------------------------------
                                                                 Min. Days to
Insecticide                     Formulation    Rate/Acre            Harvest
-------------------------------------------------------------------------------
parathion                       4 EC           1 pt                   15
-------------------------------------------------------------------------------
\b\v
\h 1 'Thrips'
\v
\v
\v
                                     Thrips

-------------------------------------------------------------------------------
                                                                 Min. Days to
Insecticide                     Formulation    Rate/Acre            Harvest
-------------------------------------------------------------------------------
azinphosmethyl (Guthion)        2 S            2 - 3 pt          7 (green)
                                                                 28 (dry)

diazinon                        4 EC           1 pt                   10

malathion                       5 EC           1 1/2 pt               3

methomyl (Lannate, Nudrin)      1.8 L          2 pt. (use        7 (dry &
                                               wetting agent)    green)

methyl parathion                4 EC           1/2 pt                 15

mevinphos (Phosdrin)            4 EC           1/2 - 1 pt             1

parathion                       8 EC           0.5 - 0.8 pt           15
-------------------------------------------------------------------------------
\h 1 'Symphalans'



                                   Symphalans

-------------------------------------------------------------------------------
                                                                 Min. Days to
Insecticide                     Formulation    Rate/Acre            Harvest
-------------------------------------------------------------------------------
dichloropropene (Telone II)     10.1 lb/gal    see label for
                                               rates
-------------------------------------------------------------------------------
\h 1 'Wireworms'



                                   Wireworms

-------------------------------------------------------------------------------
                                                                 Min. Days to
Insecticide                     Formulation    Rate/Acre            Harvest
-------------------------------------------------------------------------------
diazinon                        14 G           21 - 28 lb        preplant

parathion                       10 G           30 - 40 lb        preplant

dichloropropene (Telone II)     92% liquid     15 - 36 gal       2 - 3 weeks
                                                                 preplant
-------------------------------------------------------------------------------
