Figured folks may find this list I came across useful. maybe it is worthy to be a sticky?
http://apiculture.com/databases/pesticides.htmGroup 1 – Highly Toxic
Severe losses may be expected if the following materials are used when bees
are present at treatment time or within a few days thereafter,
except as indicated by footnotes.
(LD50 less than 2mg/bee)
abamectin (Agri-mek, Avid)
acephate (Orthene)
aldicarb (Temik)
aminocarb (Matacil)
azinphos-methyl (Guthion, APM)
carbaryl (Sevin)
carbofuran (Furadan)
chlorpyrifos (Lorsban, Dursban)
diazinon (Basudin, Bug-B-Gon, Dia-One)
dichlorvos (DDVP)
dimethoate (Cygon, Di-Thoate, Lagon)
fenitrothion (Sumithion, Folithion)
fensulfothion (Dasanit)
fenthion (Baytex, Tiguvon, Spotton, Lysoff, Entex)
fenvalerate (Bovaid)
fonofos (Dyfonate)
Imidacloprid (Gaucho)
lindane (Lindane, Ambrocide, Stockpest)
malathion (Malathion 50E, Malathion ULV, Cythion, Fyfenon)
methamidophos (Monitor)
methidathion (Supracide)
methiocarb (Mesurol)
Methomyl (Lannate)
naled (Dibrom)
parathion
permethrin (Ambush, Pounce, Ectiban, Atroban, Permectin, Siecn)
phosmet (Imidan)
propoxur (Baygon)
resmethrin
tetrachlorvinphos
Group 2 – Moderately Toxic
These can be used around bees if dosage, timing, and method of application are correct,
but should not be applied directly on bees in the field or at the colonies.
(LD50 between 2 and 11 mg/bee)
coumaphos (Co-Ral)
crotoxyphos demeton (Systox)
disulfoton (DiSyston)
endosulfan (Thiodan, Thionex)
formetanate hydrochloride (Carzol)
oxamyl (Vydate)
oxydemethon-methyl (Metasystox-R)
phorate (Thimet)
phosalone (Zolone)
sethoxydim (Poast)
terbufos (Counter)
triforine (Funginex)
Group 3 – Relatively Nontoxic
These can be used around bees with a minimum of injury.
(LD50 greater than 11 mg/bee)
2,4-D (Weed-B-Gone)
2,4-DB (Weedaway, Caliber, Cobutox, Embutox, See)
Amitrole (X-all, Steril, Altizol, Amitrol-T, Amizol)
anilazine (Dyrene)
atrazine (AAtrex)
Bacillus thuringiensis (Dipel, Thuricide, Novabac, Vectobac, Teknar, Foray, Trident, Novodor, Tersan)
benomyl (Benlate)
bentazon (Basagran)
Bordeaux mixture
bromacil (Hyvar)
bromoxynil (Pardner, Torch, Brominal, Unity, Karil)
butylate (Sutan+)
captan chloramben (No-Hoe)
chlormequat chloride (Cycocel)
chlorophacinone (Rozol, KSC5, Rat-XC, Super Bloc, Ratol, Disblok, Ground Force, Parapel, Gopher Doom, Ratachlor)
chloropicrin (Timber Fume)
chlorothalonil (Bravo, Daconil, Nopcocide, Nuocide, Exotherm, Termil)
chlorpropham (Sprout Nip, ChlorolPC, Spud-Nic)
clofentezine (Apollo SC)
Copper 8-quinolinolate (PQ, Quinolate, Cupristat)
cyanazine (Bladex) cycloate (Ro-Neet)
daminozide (B-Nine Sp)
dazomet (Basamid, Slime-Trol, Metasol, Nalcon, Amerstat)
dicamba (Banvel, Dycleer, Clarity, Cadence)
dichlobenil (Casoron, Stryke)
dichlone (Phygon)
dichlorprop
diclofop-methyl (Hoe Grass)
dicofol (Kelthane)
dienochlor (Pentac)
diflubenzuron (Dimilin)
dinocap (Karathane)
Diquat (Reglone) diuron (Diurex, Karmx)
dodemorph acetate (Meltatox)
dodine (Betz, Equal, Cyprex, Syllit)
endothall (Des-i-cate) EPTC (Eptam, Eradicane)
ethephon (Cerone, Ethrel, Nu-Tomatotone, Base-250)
ethofumesate (Nortron)
ferbam folpet (Phaltan, Folpan)
fosamine ammonium (Krenite)
gibberellic acid (Activol)
glyphosate (Round-Up, Side-Kick, Wrangler, Laredo, Renegade, Rustler, Rup, Clear-it, Touchdown, Glyfos)
iprodione (Chipco) linuron (Lorox)
mancozeb (Manzate, Penncozeb)
maneb MCPB (Topside, Tropotox)
mecoprop (Mecoturf, Compitox, Chemweed)
metalaxyl (Apron, Subdue, Ridomil)
metaldehyde (Slug Bait)
methoxychlor (Flo-pro, Methoxol, Moth Proofer, Marlate)
methyl bromide (Meth-O-Gas, Terr-o-gas)
metiram (Polyram DF)
metobromuron (Patoran)
metolachlor (Dual)
metribuzin (Sencor, Lexone, Fire)
monolinuron (Afesin)
MSMA (Glowon)
napropamide (Devrinol) naptalam (Alanap)
nicotine oxadiazon (Ronstar)
oxycarboxin (Plantvax)
paraquat (Sweep)
pebulate (Tillam)
phenmedipham (Spin-Aid)
picloram (Tordon)
pirimicarb (Pirimor)
prometryn propargite (Omite)
pyrethrins
rotenone (Noxfish, Deritex, Rotacide, Chem-fish, My-T-Mite)
simazine (Princep)
sulfur (Kumulus)
TCA [trichloracetic acid] (NATA, Bar-Fox)
terbacil (Sinbar)
thiabendazole (Arbortect, Mertect, Apl Lustr, Britex)
thiophanate-methyl (Senator, Easout, Zap Cap)
thiram (Skoot, Ropellant)
trichlorfon (Dipterex, Dylox, Grybex)
triclopyr (Garlon)
trifluralin (Treflan, Triflurex, Rival, Bonanza)
vernolate (Vernam, Surpass)
warfarin (Rodentkil, Warfarin)
zineb (Zineb)
ziram (Ziram)