Table 12.5. Insecticides registered for managing insect pests of onions. (continued)
Labels change frequently. Be sure to read a current product label before applying any chemical.
Pest
MOA
Code1
Trade Name
(Active Ingredient)
*Restricted
Rate
(Product/acre)
REI
(hours)
Days to
Harvest Remarks2
Fire ants 7A Extinguish
((S)-methoprene)
1-1.5 lb 4 0 Slow-acting IGR (insect growth regulator). Best
applied early spring and fall where crop will be
grown. Colonies will be reduced after three weeks
and eliminated after 8 to 10 weeks. May be applied
by ground equipment or aerially.
7C Esteem Ant Bait
(pyriproxyfen)
1.5-2.0 lb 12 1 Dry bulb only.
Flea beetles 4A Scorpion 35SL
(dinotefuran)
foliar: 12 foliar: 1
soil: N/A
Bulb and green onions (Crop Groups 3-07A and
3-07B).
per season.
5 Entrust SC
(spinosad)
4 1 No more than 5 applications per year and no more
For onions, bulb and green.
OMRI-listed.
Leafminers 3A *Ambush 25W
(permethrin)
6.4-19.2 oz 12 1 Dry bulb only. Maximum of 2 lb ai/acre per season.
3A *Declare Insecticide
(gamma-cyhalothrin)
24 14 Bulb onions. Maximum of 0.77 pt per acre per
season.
3A *Mustang
(zeta-cypermethrin)
2.4-4.3 oz 12 7 Do not apply more than 21.5 oz per acre per season.
Onions, bulb and green.
3A *Pounce 25 WP
(permethrin)
6.4-19.2 oz—onions 12 1 Bulb onions. Maximum 1 lb ai/acre per season.
4A Scorpion 35SL
(dinotefuran)
foliar:
soil:
12 foliar: 1
soil: N/A
Bulb and green onions (Crop Groups 3-07A and
3-07B).
per season.
5 Entrust SC
(spinosad)
4 1 No more than 5 applications per year and no more
For onions, bulb and green.
OMRI-listed.
5 Radiant SC
(spinetoram)
4 1
per year.
6 *Agri-Mek SC
(abamectin)
12 30 Must be used with a non-ionic activator type wetting,
spreading and/or penetrating adjuvant, not a binder
acre per season.
17 Trigard
(cyromazine)
2.66 oz 12 7 Maximum of 6 applications per crop.
28 Exirel
(cyazypyr)
12 1 Do not apply more than 0.4 lb ai per acre of cyazypyr
or cyantraniliprole-containing products per season.
Toxic to bees. Do not allow drift to blooming crops
or weeds.
UN Aza-Direct
(azadirachtin)
1-2 pts, up to 3.5, if needed 4 0 Antifeedant, repellant, insect growth regulator.
OMRI-listed.
UN Azatin XL
(azadirachtin)
4 0 Antifeedant, repellant, insect growth regulator.
UN Neemix 4.5 EC
(azadirachtin)
12 0 OMRI-listed.
Onion maggot 1B *Diazinon AG500,
*Diazinon 50W
(diazinon)
AG500: 2-4 qt, 50W:
4-8 lb
72 preplant Do not make more than one soil application per year.
For onions, bulb and green.
1B Lorsban 75WG;
*Advanced
(chlorpyrifos)
75WG: 1.33 lb;
Advanced:
24 60 Dry bulb only. One application per year.
1B Malathion 5EC, 8F
(malathion)
5EC: 1.5-2.5 pt;
8F: 1.5 pt
12 3 Onions, bulb and green. No more than two
applications per year.
3A *Ambush 25W
(permethrin)
6.4-19.2 oz 12 1 Dry bulb only. Maximum of 2 lb ai/acre per season.
3A *Declare Insecticide
(gamma-cyhalothrin)
24 14 Bulb onions. Maximum of 0.77 pt per acre per
season.
3A *Mustang
(zeta-cypermethrin)
2.4-4.3 oz 12 7 Do not apply more than 21.5 oz per acre per season.
Onions, bulb and green.
3A *Pounce 25 WP
(permethrin)
6.4-19.2 oz 12 1 Bulb onions. Maximum 1 lb ai/acre per season.
2019 Vegetable Production Handbook of Florida 211