TABLE 1. TOXICITY OF INSECTICIDES AND ACARICIDES TO HONEY BEES (length of residual toxic effect in hours or days)
 








Do NOT apply on blooming crops or weeds.

actellic (pirimiphos-methyl) > 1 day
Advantage (carbosulfan) > 3 days
aldrin > 1 day
Amaze (isofenphos) > 1 day
Ambush (permethrin) 1-2 days
§
Ammo (more than 0.025 lb/acre) (cypermethrin) > 3 days
Asana (esfenvalerate) (more than 0.1 lb/acre) 1 day
§
Avermectin (more than 0.025 lb/acre) 1-3 days
Azodrin (monocrotophos) > 1 day
*
Baygon (propoxur) 1 day
Baytex (fenthion) 2-3 days
Baythion (phoxim) > 1 day
Baythroid (cyfluthrin) > 1 day
Bidrin (dicrotophos) 1.5 days
Boistar (suiprofos) > 1 day
bomyl 2 days
Brigade (bifenthrin) > 1 day
Capture (bifenthrin) (more than 0.06 lb/acre) > 1 day
Cidial (phenthoate) > 1 day
Comply (fenoxycarb) 1 day
Cygon (dimethoate) 3 days
Cymbush (cypermethrin) > 3 days
Danitol (fenpropathrin) 1 day
Dasanit (fensulfothion) 1 day
De-Fend (dimethoate) 3 days
diazinon 2 days
Dibrom D or WP (naled) > 1 day
dieldrin 2 days
DNBP (dinoseb) 1 day
Dursban (chlorpyrifos) 4-6 days
Ekamet (etrimphos) > 2 days
Elgetol (dinitrocresol) (1.5 qt/100 gal or more) > 1 day
EPN 1 day
Ficam (bendiocarb) > 1 day
Folimat (omethoate) > 1 day
Furadan F (carbofuran) 7-14 days
Fury (zetacypermethrin)> 1 day
Guthion (azinphosmethyl) 2.5 days
heptachior > 1 day
Imidan (phosmet) 1-4 days
Karate (cyhalothrin) > 1 day
Knox Out (encapsulated diazinon) > 2 days
Lance (cloethocarb) > 1 day
Lannate D (methomyl) > 1 day
lead arsenate > 1 day
Legion (chlorpyrifos) 3-4 days
lindane > 2 days
Lock-on (chlorpyrifos) 4-6 days
Lorsban (chiorpyrifos) 4-6 days
malathion D or WP 2 days malathion
ULV (8 fl oz/acre or more) 5.5 days
Matacil (aminocarb) (1 lb/acre or more) > 3 days
Mesurol (methiocarb) > 3 days
methyl parathion 2 days
Monitor (methamidophos) 1 day
*
Mustang (zetacypermethrin) > 1 day
Nexagon (bromophos-ethyl) > 1 day
Nudrin D (methomyl) > 1 day
Orthene (acephate) > 3 days
Pact (thianitrile) > 1 day
parathion 1 day
Penncap-M (methyl parathion) 5-8 days
*
phosphamidon 1-2 days
Pounce (permethrin) 1-2 days
§
Pydrin (more than 0.1 lb/ acre) 1 day
§
Rebelate (dimethoate) 3 days
Sevin WP (carbaryl) 3-7 days
Sevin-4-oil (carbaryl) (more than 0.5 lb/acre) > 3 days
Sevin XLR (carbaryl) (more than 1.5 lb/acre) > 1 day
Standak (aldicarb sulfone) 1 day
Sumithion (fenitrothion) 1 day
Supracide (methidathion) 1-3 days
Taistar (bifenthrin) > 1 day
Temik G (aldicarb) (applied at least 4 weeks before bloom)
Vapona (dichlorvos) > 1 day
Zectran (mexacarbate) 1-2 days




Apply ONLY during late evening. (See caution at end of table.)

Admire (imidacloprid) < 8 hours
Andalin (flucycloxoron) < 8 hours
Avermectin (0.025 lb/acre or less) 8 hours
Confirm (tebufenozide) < 8 hours
Dibrom EC (naled) 16 hours
Dursban ULV (chlorpyrifos) (0.05 lb/acre or less) < 2 hours
malathion EC 2-6 hours
Phosdrin (mevinphos) <5 hours
Provado (imidacloprid) <8 hours
Pydrin (fenvalerate) (0.1 lb/acre or less) 6 hours
Regent (fipronil) < 8 hours
Savit (carbaryl) (1.5 lb/acre or less) 8 hourst
Sevin XLR (carbaryl) (1.5 lb/acre or less (not > 1:19 dilution) 8 hours
+
Thimet EC (phorate) 5 hours
Thiodan (endosulfan) (more than 0.5 lb/acre) 8 hours
Tiovel (endosulfan) (more than 0.5 lb/acre) 8 hours
Triumph (isazophos) 8 hours
Vydate (oxamyl) (1 lb/acre or more) 8 hours

§ Safened by repellency under arid conditions.
* Can cause serious problem if allowed to drift into vegetable or legume seed crops.
+ These materials are more hazardous to bees in a moist climate such as western Washington and Oregon and under slow-drying conditions.




Apply ONLY during late evening, night, or early morning. (See caution at end of table.)

Abate (temephos) 3 hours
Adios (carbaryl) < 2 hours
Alert (chlorfenapyr) < 4 hours
Ammo (cypermethrin) (0.025 lb/acre or less) < 2 hours
Andalin (flucycloxuron) < 8 hours
Arbor (diofenolan) < 2 hours
Aspon (propyl thiopyrophosphate) < 2 hours
Azatin (azadirachtin) < 2 hours
Baygon ULV (propoxur) (0.07 lb/acre or less) < 2 hours
Baytex ULV (fenthion) (0.1 lb/acre or less) 2 hours
Carzol (formetanate) 2 hours
chiordane < 2 hours
Croneton (ethiofencarb) < 4 hours
Curacron (profenofos) < 6 hours
DDT < 4 hours
Decis (deltamethrin) < 4 hours
Delnav (dioxathion) < 2 hours
Diatect (diatomaceous earth) < 2 hours
dieldrin G < 2 hours
Di-Syston EC (disulfoton) < 7 hours
Dyfonate (fonofos) < 3 hours
Dylox (trichiorfon) 3-6 hours
Elgetol (dinitrocresol) (1.5 pt/100 gal or less) 2 hours
endrin 2 hours
ethion 3 hours
Fulfill (pymethrozine) < 2 hours
Gardona (tetrachlorvinphos) < 2 hours
heptachior G < 2 hours
horticultural mineral oils < 3 hours
Lannate LS (methomyl) 2 hours
+
Larvin (thiodicarb) < 2 hours
Malathion ULV (3 fi oz/acre or less) 3 hours
Matacil ULV (aminocarb) (2.4 oz /acre or less) < 2 hours
Mavrik (fluvalinate) < 2 hours
menazon < 2 hours
Metasystox-R (oxydemeton-methyl) < 2 hours
methoxychlor 2 hours
Mobilawn (dichlorfenthion) 2 hours
Morocide (binapacryl) < 2 hours
Nemacide (dichlorfenthion) 2 hours
Neemix (azadirachtin) < 2 hours
Nudrin LS (methomyl) 2 hours
+
Onic (alanycarb) < 2 hours
Perthane (ethylan) 2 hours
Pirimor (pirimicarb) < 2 hours
Proclaim (emamectin benzoate) < 2 hours
Proxol (trichiorfon) 3-6 hours
Pryamite (pyridaben) < 2 hours
Pyrellin < 2 hours
Pyrenone < 2 hours
Rhothane (IDE) 2 hours
Rotenone < 2 hours
Ryania < 2 hours
Scout (tralomethrin) 2 hours
Sevin-4-oil (carbaryl) (0.5 lb/acre or less) 2 hours
Spur (fluvalinate) < 2 hours
Sterling (pymetrozine) < 2 hours
Success (spinosad) < 2 hours
Systox (demeton) < 2 hours
TEPP < 5 hours
Thanite (isobornyl thiocyanate) < 3 hours
Thimet G (phorate) < 2 hours
Thiodan (endosulfan) (0.5 lb/acre or less) 2-3 hours
Thirethrin (endosulfan) 3 hours
hovel (endosulfan) (0.5 lb/acre or less) 2-3 hours
Torak (dialifor) < 2 hours
toxaphene 2-4 hours
Trigard (cyromazine) < 2 hours
Trithion (carbophenothion) 2-5 hours
Vapona ULV (dichlorvos) (0.1 lb/acre or less) < 2 hours
Vydate (oxamyl) (0.5 lb/acre or less) 3 hours
Zolone (phosalone) 2 hours


Can be applied at any time with reasonable safety to bees.

Acarol (bromopropylate)
allethrin
Apollo (clofentezene)
BAAM (amitraz)
Bacillus thuringiensis (Bactospeine, Bactur, Bakthane, Bug Time, Cekubacilina, Certan, Di Beta, Dipel, Foil, Javlin or Sok-Bt)
Baygon G (propoxur)
chlorobenzilate
chloropropylate
Comite (propargite)
cryolite
Dasanit G (fensulfothion)
Demize (D-Limonene)
diazinon G
Dikar
Dimilin (diflubenzuron)
Di-Syston G (disulfoton)
Furadan G (carbofuran)
Garlic Barrier (garlic)
Heliothis polyhedrosis virus (Elcar)
Hot Pepper Wax
Karathane (dinocap)
Kelthane (dicofol)
Knack (pyriproxifen)
Kroyocide (cryolite)
Lethane 384 (butoxy thiocyanodiethyl ether)
lime-sulfur
malathion G
Margosan-O (neem oil)
Metaldehyde bait
Micasin (chlorfensulphide)
Milbex (chlorfensulphide)
Mirex G
Mitac (amitraz)
Mocap G
Morestan (oxythioquinox)
M-Pede (soap)
Naturalis-L (Beauveria bassianna)
nicotine sulfate
Omite (propargite)
Ovex (chlorfenson)
Pentac (dienochior)
Plictran (cyhexatin)
pyrethrum
rotenone
ryania
Savey (hexythiazox)
schradan
Sevin bait G (carbaryl)
Sevin C (carbaryl)
sodium fluosilicate baits
sulfur
Tedion (tetradifon)
Vendex (fenbutatin-oxide)

+ These materials are more hazardous to bees in a moist climate such as western Washington and Oregon and under slow-drying conditions.





CAUTION: Timing of insecticide applications in respect to bee poisoning hazard can be drastically modified by abnormal weather conditions. If temperatures are unusually low following treatment, residues on the crop typically remain toxic to bees about twice as long as during reasonably warm weather. Conversely, if abnormally high temperatures occur during late evening or early morning, bees may actively forage on the treated crop during these times.

!Warning. Use pesticides with care. Apply them only to plants, animals, or sites listed on the label. When mixing and applying pesticides, follow all label precautions to protect yourself and others around you. It is a violation of the law to disregard label directions. If pesticides are spilled on skin or clothing, remove clothing and wash skin thoroughly. Store pesticides in their original containers and keep them out of the reach of children, pets, and livestock.




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