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How to Manage Pests
UC Pest Management Guidelines
Dry Beans
Relative
Toxicities of Insecticides and Miticides Used in Dry Beans to
Natural Enemies and Honey Bees
(Reviewed 8/07,
updated 8/07)
In this Guideline:
|
|
|
| Common name (trade name and formulation) |
Mode of action1 |
Selectivity2 (affected groups) |
Predatory mites3 |
General predators4 |
Parasites4 |
Honey bees5 |
Duration of impact to natural enemies6 |
| acephate (Orthene SP) |
1B |
broad (insects, mites) |
H |
H |
M/H |
I |
moderate |
| aldicarb (Temik) at planting |
1A |
broad (insects, mites) |
M |
M |
M |
IV7 |
long |
| Bacillus thuringiensis ssp.
aizawai
|
11.B1 |
narrow (caterpillars) |
L |
L |
L |
IV |
short |
| Bacillus thuringiensis ssp.
kurstaki
|
11.B2 |
narrow (caterpillars) |
L |
L |
L |
IV |
short |
| carbaryl (Sevin S) |
1A |
broad (insects, mites) |
M/H |
H |
H |
I |
long |
| carbaryl (Sevin XLR Plus) |
1A |
broad (insects, mites) |
L |
H |
H |
I8 |
long |
| cryomazine (Trigard) |
17 |
narrow (leafminers) |
L |
L |
L |
III |
short |
| dicofol (Kelthane MF) |
UNC |
narrow (pest mites and mites) |
H |
M |
M |
IV |
long to beneficial mites |
| dimethoate (EC) |
1B |
broad (insects, mites) |
H |
H |
H |
I |
long |
| lambda-cyhalothrin (Warrior) |
3 |
broad (plant bugs, beetles, caterpillars) |
H |
H |
H |
I9 |
moderate |
| malathion (EC) |
1B |
broad (insects, mites) |
M |
H |
H |
II |
moderate |
| methomyl (Lannate SP) |
1A |
broad (insects , mites) |
H |
H |
H |
III |
moderate |
| propargite (Omite) |
12C |
narrow (pest mites) |
M10 |
L |
L |
IV |
short |
| spinosad (Entrust, Success) |
5 |
narrow (caterpillars, thrips, whiteflies, aphids, leafminers) |
L |
M11 |
L/M |
III |
short to moderate11 |
| zeta-cypermethrin (Mustang) |
3 |
broad (insects, mites) |
H |
M |
M |
I |
moderate |
H = high M
= moderate
L = low —
= no information
| 1 |
Rotate chemicals with a different mode-of-action Group
number, and do not use products with the same mode-of-action Group number
more than twice per season to help prevent development of resistance. For example, the organophosphates
have a Group number of 1B; chemicals with a 1B Group number should be
alternated with chemicals that have a Group number other than 1B. Mode of
action Group numbers are assigned by IRAC (Insecticide Resistance Action Committee). For additional information, see their Web site at http://www.irac-online.org/. |
| 2 |
Selectivity: broad means it affects most groups of insects and mites; narrow means it affects only a few specific groups. |
| 3 |
Generally, toxicities are to western predatory mite, Galendromus
occidentalis.
|
| 4 |
Toxicities are averages of reported effects and should be
used only as a general guide. Actual toxicity of a specific chemical depends
on the species of predator or parasite, environmental conditions, and application rate. |
| 5 |
Ratings are as follows: I = Do not apply to blooming
plants; II = Apply only during late evening; III = Apply only during late
evening, night, or early morning; and IV = Apply at any time with reasonable
safety to bees. For more information, see How
to Reduce Bee Poisoning From Pesticides , Pacific Northwest Extension Publication PNW591. |
| 6 |
Duration: short means hours to days; moderate means days to two weeks; and long means many weeks or months. |
| 7 |
Not hazardous to bees when applied at least 4 weeks before bloom. |
| 8 |
If rate is 1.5 lb a.i. or less and dilution not greater than 1:19, rating is II. |
| 9 |
If rate is 0.02 lb a.i./acre, rating is II. |
| 10 |
Use lowest rates for best management of western predatory mite/spider mite ratio. |
| 11 |
Toxic against some natural enemies
(predatory thrips, syrphid fly and lacewing larvae, beetles) when sprayed and up to 5-7 days after, especially for syrphid fly larvae. |
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UC IPM Pest Management Guidelines: Dry
Beans
UC ANR Publication 3446
General Information
Acknowledgements: This table was compiled based on research
data and experience of University of California scientists who work on a
variety of crops and contribute to the Pest Management Guideline database,
and from Flint, M.L. and S.H. Dreistadt. 1998. Natural
Enemies Handbook: An Illustrated Guide to Biological Pest Control, ANR Publication 3386.
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