Vegetable Insecticide Quick Reference: IRAC Groups, Classes & Active Ingredients
Veronica Yurchak, Vegetable Specialist, UMD
Numerous sources of insecticide recommendations are available to vegetable growers to facilitate effective pest management and appropriate rotation schedules. However, depending on the source of the recommendation, products may be referred to by their IRAC number, insecticide class, active ingredient, or by a specific product name. By request, I have compiled the table below, which is intended to provide a quick reference to clarify the different classifications for those insecticides typically associated with vegetable production.
| IRAC Group | Insecticide Class | Active Ingredient(s) | Example Product(s)* |
|---|---|---|---|
| 1A | carbamates | carbaryl | Sevin XLR Plus |
| 1A | carbamates | methomyl | Lannate LV 2.4 WSL |
| 1B | organophosphates | diazinon | Diazinon AG500 |
| 1B | organophosphates | acephate | Orthene 97 |
| 1B | organophosphates | dimethoate | Dimethoate 400EC |
| 1B | organophosphates | malathion | Malathion 57 EC |
| 3A | pyrethroids, pyrethrins | alpha-cypermethrin | Fastac CS |
| 3A | pyrethroids, pyrethrins | beta-cyfluthrin | Baythroid XL 1EC |
| 3A | pyrethroids, pyrethrins | bifenthrin | Brigade 2EC |
| 3A | pyrethroids, pyrethrins | zeta-cypermethrin | Mustang Maxx 0.8 |
| 3A | pyrethroids, pyrethrins | lambda-cyhalothrin | Lambda-Cy EC |
| 3A | pyrethroids, pyrethrins | gamma-cyhalothrin | Declare |
| 3A | pyrethroids, pyrethrins | cyfluthrin | Tombstone 2, Tombstone Helios 2 |
| 3A | pyrethroids, pyrethrins | esfenvalerate | Asana XL 0.66 EC |
| 3A | pyrethroids, pyrethrins | permethrin | Permethrin 3.2 EC |
| 3A | pyrethroids, pyrethrins | pyrethrin | PyGanic Crop protection EC 5.0 II |
| 4A | neonicotinoids | thiamethoxam | Actara 25WDG, Platinum 75 SG |
| 4A | neonicotinoids | imidacloprid | Admire Pro 4.6SC |
| 4A | neonicotinoids | acetamiprid | Assail 30SG |
| 4A | neonicotinoids | dinotefuran | Scorpion 35SL, Venom |
| 4A | neonicotinoids | clothianidin | Belay 2.13SC |
| 4C | sulfoximines | sulfoxaflor | Transform WG |
| 4D | butenolides | flupyradifurone | Sivanto Prime |
| 5 | spinosyns | spinosad | Entrust SC, Blackhawk 36WG |
| 5 | spinosyns | spinetoram | Radiant SC |
| 6 | avermectins | abamectin | Agri-Mek |
| 6 | avermectins | emamectin benzoate | Proclaim 5SG |
| 7C | pyriproxyfen | pyriproxyfen | Knack |
| 9B | pyridine azomethine derivatives | pyrifluquinazon | PQZ |
| 9B | pyridine azomethine derivatives | pymetrozine | Fulfill 50WDG |
| 9D | pyropenes | afidopyropen | Versys |
| 10B | etoxazoles | etoxazole | Zeal |
| 11A | Bacillus thuringiensis (Bt) | Bacillus thuringiensis kurstaki | DiPel DF |
| 11A | Bacillus thuringiensis (Bt) | Bacillus thuringiensis aizawai | XenTari |
| 15 | benzoylureas | novaluron | Rimon 0.83 EC |
| 17 | cyromazines | cyromazine | TriGard 75 WP |
| 18 | diacylhydrazines | tebufenozide | Confirm 2F |
| 18 | diacylhydrazines | methoxyfenozide | Intrepid 2F |
| 21A | METI acaricides & insecticides | tolfenpyrad | Torac |
| 22A | oxadiazines | indoxacarb | Avaunt 30WG, Avaunt eVo |
| 23 | tetronic & tetramic acid derivatives | spirotetramat | Movento |
| 23 | tetronic & tetramic acid derivatives | spiromesifen | Oberon 2SC |
| 28 | diamides | cyantraniliprole | Exirel 0.83SE, Verimark 1.67SC |
| 28 | diamides | chlorantraniliprole | Coragen eVo, Vantacor |
| 28 | diamides | cyclaniliprole | Harvanta 50SL |
| 29 | flonicamids | flonicamid | Beleaf 50SG |
| 30 | isoxazolines | isocycloseram | Incipio, Vertento, Zivalgo |
*Not an exhaustive list of all available products containing each active ingredient.
This article appears in October 2026, Volume 17, Issue 9 of the Vegetable and Fruit News