How to Manage Pests

UC Pest Management Guidelines

Cherry

Relative Toxicities of Insecticides and Miticides Used in Cherries to Natural Enemies and Honey Bees

(Reviewed 11/09 , updated 5/10)

In this Guideline:


Common name (trade name) Mode of action1 Selectivity2 (affected groups) Predatory mites3 General predators4 Parasites4 Honey bees5 Duration of impact to natural enemies6
acetamiprid (Assail) 4A moderate (sucking insects, larvae) 7 III moderate
Bacillus thuringiensis ssp. kurstaki 11 narrow (caterpillars) L L L IV none
bifenazate (Acramite) un narrow (spider mites) L L L III short
carbaryl (Sevin) XLR 1A broad (insects, mites) L H H II long
carbaryl (Sevin) XLR Plus 1A broad (insects, mites) L H L III long
chlorantraniliprole (Altacor) 28 narrow (primarily caterpillars) L L L/M IV short
chlorpyrifos (Lorsban) 1B broad (insects, mites) M H H I moderate
clofentezine (Apollo) 10A narrow (mites) L L L IV short
diazinon 1B broad (insects, mites) L H H I moderate to long
esfenvalerate (Asana) 3 broad (insect, mites) H M H I moderate
etoxazole (Zeal) 10B narrow (mites) H8 L IV short
flubendiamide (Belt) 28 L L L/M I short
hexythiazox (Onager) 10A narrow (mites) M L L IV short to moderate
imidacloprid (Provado) 4A narrow (sucking insects) M M H II short to moderate
lambda-cyhalothrin (Warrior) 3 broad (beetles,caterpillars) H H H I9 moderate
methidathion (Supracide) 1B broad (insects , mites) H H H I moderate to long
methoxyfenozide (Intrepid) 18 narrow (caterpillars) L L L IV none
petroleum oil broad (exposed insects, mites) L L L III short to none
propargite (Omite) 14 narrow (pest mites) M10 L L IV short
pyriproxyfen (Seize) 7C narrow (scale, beetles) L H11 L IV long
spinetoram (Delegate) 5 narrow (caterpillars, aphids, scales) M M12 L/M III moderate13
spinosad (Entrust, Success) 5 narrow (caterpillars, aphids, scales) M M12 L/M III short
spirodiclofen (Envidor) 23 narrow (mites) L I
thiamethoxam (Actara) 4A narrow (sucking insects) 14 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 the 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, toxicites are to western predatory mite, Galendromus occidentalis. Where differences have been measured, these are listed as pesticide-resistant strain/native strain.
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-Donot 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 (PDF), Pacific Northwest Extension Publication PNW591.
6 Duration: Short means hours to days; moderate means days to 2 weeks; and long means many weeks or months.
7 May cause flare-ups of spider mite populations.
8 Does not kill adults but sterilizes females.
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 Kills lady beetles.
12 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.
13 Residual is moderate if solution is between pH of 7 to 8.
14 May cause an increase in spider mite populations.

[Precautions]

PUBLICATION

[UC Peer Reviewed]

UC IPM Pest Management Guidelines: Cherry
UC ANR Publication 3440

General Information

Acknowledgements: 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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