TABLE 5. TOXICITY OF PESTICIDES TO HONEY BEES, ALFALFA LEAFCUTTING BEES, AND ALKALI BEES
Rating Scale:
0= No data or experience is available. Do not use.
1= Do not apply to blooming plants.
2= Apply in evening after bees have stopped foraging.
3= Apply in late evening after bees have stopped foraging until early morning before they begin foraging.
4= Apply at any time with reasonable safety to bees.
Note: Some of the listed pesticides have been discontinued and are no longer available or legal to use. They are included as a guide to relative toxicity. Baygon, Baytex, and Dursban at mosquito abatement rates can be applied only in the evenings where honey bees are present.
Pesticide

Honey bee

Alfalfa
leaf-cutting bee

Alkali bee
Actellic

1

1

0
Adios

3

3

3
Admire

2

2

2
Advantage

1

1

0
Alar

4

0

0
aldrin

1

1

1
Alert

3

2

2
Align

3

3

3
allethrin

4

0

0
Amaze

1

1

1
Ambush

1

1

1
Amiben

4

0

0
amino-triazole

3

0

0
amitraz

4

0

0
amitrole

3

0

0
Ammate

4

0

0
Ammo

1

1

1
Ammonium thiosulfate

4

4

4
Andalin

3

2

2
Apollo

4

0

0
Arasan

4

0

0
Arbor

3

2

3
Asana

1

1

1
Aspon

2

0

0
atrazine

4

0

0
Avenge

4

0

0
avermectin

2

3

3
Azatin

3

3

3
azinphos-methyl

1

1

1
Azodrin

1

1

1
Baam

4

0

0
Bacillus thuringiensis

4

4

4
Bactimos

4

4

4
Banvel

4

0

0
Barban

4

0

0
Baycor

4

0

0
Baygon

1

1

1
Baygon G

4

4

4
Batgon ULV

3

0

0
Bayleton

4

0

0
Baytex

1

1

1
Baytex ULV

3

0

0
Baythroid

1

0

0
Benlate

4

0

0
BHC

1

1

1
Bidrin

1

1

1
bomy

1

1

1
Bordeaux Mixture

4

0

0
Brigade

1

1

0
bromacil

3

0

0
Broot G

4

0

0
Butoxone

4

4

4
calcium arsenate

1

1

1
captan

1

0

0
Capture, 0.06 lb or more

1

1

1
Capture, less than 0.06 lb

2

2

0
carboxin

4

0

0
Carbyne

4

0

0
Carzol

3

2

3
Certan

4

4

4
chlordane

3

1

1
Chloro IPC

4

0

0
Cidial

1

1

1
Ciodrin

1

0

0
Comite

4

4

4
Comite + Dylox + Systox

1

1

1
Confirm

2

0

0
copper sulfate

4

0

0
Comply

1

1

1
cryolite

4

0

0
Cygon

1

1

1
Cymbush

1

1

1
cypermethrin

1

1

1
Cyprex

4

0

0
Cythion

1

1

1
2,4-D (alkanolamine)

3

0

0
2,4-D (butoxyethanol ester)

3

0

0
2,4-D (isooctyl ester)

4

0

0
2,4-D (isopropyl ester)

3

0

0
2,4-D (sodium salts)

4

0

0
dalapon

4

0

0
Danitol

1

1

1
Dasanit

1

0

0
2,4-DB

4

4

4
DDT

3

1

3
Decis

2

2

2
De-Fend

1

1

1
Demize

4

4

4
Delnav

3

2

0
Desiccant

4

0

0
Dessin

4

0

0
diazinon

1

1

1
diazinon G

4

4

4
Dibrom

2

2

1
Dibeta

2

2

2
Diatect

3

3

3
dicofol

4

4

4
dieldrin

1

1

1
Dikar

4

0

0
Dimilin

4

0

0
dinoseb

2

1

1
DiPel

4

4

4
diquat

4

0

0
Di-Syston EC

3

1

3
Di-Syston G

4

4

4
Dithane M-22

4

0

0
Dithane M-45

4

0

0
Dithane Z-78

4

0

0
diuron

4

0

0
DNBP

1

1

1
DNOC

3

1

1
Dursban

1

1

1
Dyfonate

3

0

0
Dylox

3

3

3
Elgetol

3

1

1
endothall

3

0

0
endrin

3

1

2
EPN

1

1

1
Eptam

4

0

0
EPTC

4

4

4
ethion

3

1

1
Ethrel

4

0

0
ferbam

4

0

0
Ficam

1

1

1
fixed copper

4

0

0
Florel

4

0

0
flucythrinate

1

0

0
fluvalinate

3

3

2
Folimat

1

0

0
Fufill

3

3

3
Furadan F

1

1

1
Furadan G

4

4

4
Fury

1

1

1
Fusilade

3

0

0
glyodin

4

0

0
Guthion

1

1

1
Heliothis polydedrosis virus (Elcar)

4

0

0
heptachlor

1

1

1
horticultural mineral oil

3

0

0
Hyvar X

3

0

0
Imidan

1

1

2
IPC

4

0

0
Javelin

4

4

4
Karate

1

1

1
Karathane

4

0

0
Karmex

4

0

0
Kelthane

4

4

4
Kelthane + Dylox + Systox

1

1

1
Kerb

4

0

0
Knack

4

4

4
Knox Out

1

1

1
Kryocide

4

0

0
Legion

2

2

1
Lance

1

1

1
Lannate

3

2

3
Lannate D

1

1

1
Larvin

3

1

1
Lasso

4

0

0
lead arsenate

1

1

1
Lexone

4

0

0
lime-sulfur

4

4

4
Lindane

1

1

1
Lock-On

1

1

1
Lorsban

1

1

1
MCPA

4

0

0
malathion

2

1

1
Malathion ULV

1

1

1
maneb

4

0

0
Manzeb

4

0

0
Matacil

1

0

0
Mavrik

3

3

2
Measurol

1

1

1
Metacide

1

1

1
Metasystox-R

3

2

3
methoxychlor

3

2

3
methyl parathion

1

1

1
methyl parathion (microencapsulated)

1

1

1
metribuzin

4

0

0
Mitac

4

0

0
Mobilawn

2

0

0
Mocap G

2

0

0
Mocap EC

1

1

1
Monitor

1

1

1
Monobor-Chlorate

4

0

0
Morestan

4

3

3
Morocide

3

0

0
Mustang

1

1

1
NAA

4

0

0
Naturalis-L

4

4

4
Neemix

3

3

3
Nosema locustae (NoLo Bait)

4

4

4
Nudrin

3

2

3
Nudrin D

1

1

1
Omite

4

4

4
Omite + Dylox + Systox

1

1

1
Onic

2

0

0
Orthene

1

1

1
paraquat

4

0

0
parathion

1

1

1
Penncap-M

1

1

1
Pentac

4

0

0
Perthane

3

0

0
Phosdrin

1

1

1
phosphamidon

1

1

1
Phoxtex

2

0

0
Phygon

4

0

0
picloram

4

0

0
Pirimor

3

3

3
PMA

4

0

0
Pounce

1

1

1
Primicid

1

1

0
Proclaim

3

0

0
Provado

2

2

2
Proxol

3

3

2
Pydrin

1

1

1
Pyramite

2

1

2
pyrellin

3

3

3
pyrenone

3

3

3
pyrethrum

4

0

0
Rabon

1

2

3
Rebelate

1

1

1
Regent

2

1

2
Resmethrin

1

0

0
rotenone

3

0

0
ryania

3

0

0
Roundup

4

0

0
Savey

4

4

4
Savit

2

1

1
Scout

3

2

2
Sencor

4

0

0
Sevimol

1

1

1
Sevin 4-Oil

1

1

1
Sevin

1

1

1
Sevin Bait

4

4

4
Sevin XLR

2

1

1
Sevin XLR Plus

3

1

1
silvex

4

0

0
simazine

3

0

0
Sinbar

4

0

0
Spur

3

2

2
Stalker

2

2

1
Sterling

3

3

3
Stipend

1

1

1
Success

3

2

3
sulfur

4

4

4
Sumithion

1

1

0
Supracide

1

1

1
Systox

3

3

3
2,4,5-T

4

0

0
Tag

4

0

0
Talstar

1

1

1
Tedion

4

3

4
Teknar

4

4

4
Temik

1

1

1
TEPP

2

1

1
terbacil

4

0

0
Thimet G

3

3

1
Thiodan

3

1

2
thiram

4

0

0
Thirethrin

3

0

0
Thuricide

4

4

4
Thylate

4

0

0
Tiovel

3

1

2
Tordon

4

0

1
Toxaphen

3

1

2
2,4,5-TP

4

0

0
Treflan

4

4

4
trifluralin

4

4

4
Trigard

3

1

1
Trithion

3

1

2
Trophy

1

1

1
Vapona

1

1

1
Vendex

4

0

0
Vitavax

4

0

0
Vydate

3

2

2
Zerlate

4

0

0
ziram

4

0

0
Zolone

3

3

3